45th week of 2020 patent applcation highlights part 59 |
Patent application number | Title | Published |
20200350763 | METHOD FOR DAMPING HARMONICS - Harmonics of a power output of a power plant at a point of common coupling between the power plant and a utility grid, wherein the power plant comprises a plurality of energy production units. The method comprises determining an electrical characteristic at the point of common coupling; determining the electrical characteristic at an output terminal of each of the energy production units and dispatching a control signal to at least one of the energy production units to control the electrical characteristic at an output terminal of the respective energy production units. The control signal is based on the measurement of the electrical characteristic at the point of common coupling and arranged for damping the harmonic of the power output of the power plant at the point of common coupling, wherein the control signal is determined on the basis of a predetermined prioritizing sequence of said electrical characteristic. | 2020-11-05 |
20200350764 | SYSTEMS AND METHODS FOR GRID MANAGEMENT - Embodiments of systems and methods for power demand management are described herein. In some embodiments the system uses demand response bidding to reduce or increase the load of a power system. Day ahead or real-time bids may be performed. In other embodiments, a virtual power plant is disclosed that dynamically aggregates multiple power assets to provide demand response services, frequency response services, and fast ramp services to the grid. | 2020-11-05 |
20200350765 | IMPROVEMENTS RELATING TO CURRENT INJECTION IN WIND POWER PLANTS - A method for controlling a renewable energy generator, the renewable energy generator being connected to a Point of Interconnection of an external power grid by a connecting network, wherein the connecting network has an associated impedance level. The method comprising: monitoring at least one parameter of the connecting network and the voltage level at the Point of Interconnection; generating, during normal operating conditions, at least one current injection profile based upon the at least one measured parameter and a predetermined injection profile; and operating the renewable energy generator, during a grid fault, to output current according to the at least one current injection profile, so as to achieve a current set point at the Point of Interconnection. | 2020-11-05 |
20200350766 | SYSTEM AND METHOD FOR OPTIMAL CONTROL OF ENERGY STORAGE SYSTEM - Systems and method for optimal control of one or more energy storage systems are provided. Based on live, historical, and/or forecast data received from one or more data sources, one or more forecasts of one or more parameters relating to the operation of the one or more energy storage systems and an associated forecast uncertainty may be calculated by various forecasting techniques. Using one or more optimization techniques, an optimal dispatch schedule for the operation of the one or more energy storage systems may be created based on the forecasts. The optimal dispatch schedule may be used to determine one or more energy storage system parameters, which are used to control the operation of the energy storage systems. | 2020-11-05 |
20200350767 | ENERGIZATION OF A CONVERTER INCLUDING A MIX OF HALF-BRIDGE AND FULL-BRIDGE SUBMODULES - Methods of energizing converters, and converter stations thereof, based on a mix of half-bridge (HB) converter cells and full-bridge (FB) converter cells are provided. According to one embodiment, a method for energizing a converter may include establishing a direct electrical connection between DC terminals of a converter, electrically connecting the converter to an AC power source via AC connectors and obtaining, from the AC power source and for a certain period of time, an AC voltage between two electrical phase lines for charging capacitors of the FB cells connected to the two electrical phase lines. Accordingly, the FB cells will be charged to a higher value and they may be controlled for charging capacitors of the HB submodules to at least a minimum voltage required to start switching devices of the HB submodules by drawing power from the AC power source. | 2020-11-05 |
20200350768 | COMBINATION WIND/SOLAR DC POWER SYSTEM - A direct current power system. The direct current power system includes a direct current bus system, a solar power system, an energy storage system and a wind power system. The solar power system is configured to supply a first direct current power. The energy storage system has an input electrically coupled to the solar power system and is configured to supply a second direct current power at 380 volts to the direct current bus system. The wind power system includes is electrically coupled to the energy storage system and is configured to supply a third direct current power. | 2020-11-05 |
20200350769 | METHOD FOR GENERATING AN ALTERNATING CURRENT BY MEANS OF AN INVERTER OF A WIND TURBINE - Provided is a method for generating a multiphase electrical alternating current having a sinusoidal fundamental wave in each phase by a multiphase inverter of a wind power installation. The multiphase inverter is controlled by a tolerance band method which respectively has an upper and a lower band limit for each of the phases of the inverter. The inverter has, for each phase, an upper switch for generating a positive sine half-wave of the alternating current of the phase and a lower switch for generating a negative sine half-wave of the alternating current of the phase. The method includes generating the positive sine half-wave by the upper switch and generating the negative sine half-wave by the lower switch based on the band limits of the phase, and changing at least one of the band limits such that a signal component superimposed on the respective sinusoidal fundamental wave is reduced. | 2020-11-05 |
20200350770 | THERMAL RUNAWAY DETECTION CIRCUIT AND METHOD - The present disclosure provides a thermal runaway detection circuit and a method, which is directed to field of batteries. The circuit includes: a sensing module including a terminating resistor; a detection module including a first voltage dividing resistor set and a second voltage dividing resistor set; and a processing module connected to the detection module, wherein the processing module is configured to obtain thermal runaway detection data, and determine whether thermal runaway occurs in the battery pack based on the thermal runaway detection data. The thermal runaway detection data includes first sampled data and second sampled data. The technical solutions in the present disclosure can improve safety of the battery pack. | 2020-11-05 |
20200350771 | METHOD FOR GENERATING DATA DIAGRAM AND METHOD FOR MANAGING BATTERY PACK - A method for generating a data diagram is provided, including: obtaining a first data of each cell in a battery pack during a charge and discharge cycle of the battery pack; calculating a rated capacity and a dischargeable electric quantity of each cell based upon the data obtained; and generating a first data diagram for every cell of the battery pack based upon the rated capacity and the dischargeable electric quantity of each cell. A method for managing the battery pack based on the data diagram is further provided. | 2020-11-05 |
20200350772 | Battery, Terminal, And Charging System - Example batteries, terminals, and charging systems are described. One example battery includes a battery charging port, a battery discharging port, a battery negative port, an overcurrent protection element, a protection integrated circuit, a control switch, and an electrochemical cell. The battery charging port is connected to a positive electrode of the electrochemical cell. The control switch is connected in series between a negative electrode of the electrochemical cell and the battery negative port. The protection integrated circuit is connected in parallel to two ends of the electrochemical cell. The protection integrated circuit is further connected to the control switch so as to send a control signal to the control switch. In addition, the overcurrent protection element is connected in series between the battery discharging port and the positive electrode of the electrochemical cell. The battery provided in the present application has both a charging path and a discharging path. | 2020-11-05 |
20200350773 | CHARGER FOR AEROSOL-GENERATING DEVICES - A charger may be used as a social recharge hub that charges aerosol-generating devices and facilitate social connections. The charger may be able to charge a plurality of batteries concurrently or simultaneously. The charger may capable of associating a battery identifier of one or more batteries to a user. The user may also be associated with an aerosol-generating device and to a mobile user device. The charger may establish a connection with the mobile user device and communicate to the mobile user device using a communication interface. User data, such as preferences, interests, and even music, may be communicated from the mobile user device to the charger and may be used to facilitate social opportunities for the user, particularly in a public or social space with other users, or to make the space around the user more comfortable. | 2020-11-05 |
20200350774 | SUPPLEMENTAL CHARGER - A supplemental charger capable of being combined with a wearable device includes a main body including a strap having opposing ends that are extendable in opposite directions and connectable to each other, coupling parts configured to couple the wearable device to the main body, wherein at least one coupling part is attached to a respective one of the opposing ends of the strap; and a charging unit to charge the wearable device when the wearable device is coupled to the main body. | 2020-11-05 |
20200350775 | Methods and Systems for Automatic Electric Vehicle Identification and Charging Via Wireless Charging Pads - A system for charging a battery of a vehicle using inductive charging is provided. The system includes a charging pad for inductive charge transfer. The charge pad is configured with electronics that enables wireless communication. A self-aligning mechanism is part of the charging pad, and the self-aligning mechanism is configured to adjust positioning of the charging pad when the vehicle is disposed over the charging pad. A computer associated with the charging pad is configured to execute method operations for communicating with electronics of the vehicle to enable charging of the battery of the vehicle. The electronics of the vehicle is configured to identify a user account for charging the vehicle. An application associated with the user account is configured to receive updates regarding a charging status of the vehicle responsive to said inductive charge transfer being enabled. The computer associated with the charging pad is configured to detect when said vehicle is moved off from over the charging pad to discontinue said inductive charge transfer. The application associated with the user account is configured to identify an amount of charge on the battery of the vehicle and update the charging status to indicate no charging of said battery when the vehicle is no longer over the charging pad. | 2020-11-05 |
20200350776 | APPARATUS FOR TREATING A RESPIRATORY DISORDER WITH A POWER SOURCE CONNECTION - A respiratory device, such as a ventilator, for use in treating respiratory disorders and for preventing respiratory disorders. The respiratory device is configured to be powered from a range of different power sources including an internal battery, an external battery, AC power source or a DC power source. The device may be electrically connectable to a plurality of external batteries in a series and the power from each external battery is used sequentially along the series. A controller of the respiratory device is configured to detect the connection of the different power sources and control use of the different power sources using a power priority scheme. The controller may determine an estimate of the total available battery capacity from all the electrically connected batteries and display the total battery capacity on a user interface display of the device. | 2020-11-05 |
20200350777 | CONTROLLER AND BATTERY MANAGEMENT METHODS - A controller for managing a battery pack includes: a detection terminal, for transmitting an enable signal when values of battery parameters for the battery pack satisfy a sleep condition, where the enable signal enables the detection circuit to detect whether the battery pack is connected to a load and whether the battery pack is connected to the charger; and a receiving terminal, for receiving a detection result transmitted by the detection circuit. The detection result indicates whether the battery pack is connected to at least one of the load and charger. The controller controls the battery pack to enter a sleep mode of the sleep modes based on the detection result. The controller also includes a control terminal, for transmitting a control signal to control an on/off state of a charging switch and/or a discharging switch. The control signal is generated by the controller based on the detection result. | 2020-11-05 |
20200350778 | WIRELESS POWER SELF HARVESTING CONTROL DEVICE AND SYSTEM AND METHOD FOR WIRELESSLY REPROGRAMMING THE SAME - Embodiments of the present invention provide wireless control devices that operate in-field wirelessly without removable batteries, have power self-harvesting components, and can be wirelessly programmed over long ranges without interfering with the normal operation of the control devices. Only control devices that have sufficient power available to perform a reprogram cycle (and can function normally until a next power harvest cycle) are selected. Control devices can be selected for wireless reprogramming based on the upcoming functions to be performed by the control device, the amount of energy stored in the control device, the rate of power generation of a solar panel of the control device, and current and upcoming weather conditions, etc. The wireless programming can include updating a firmware of the control device, a bootloader of the control device, and an application program image. A bootloader image can be downloaded to update the bootloader, and the bootloader is executed to download one or more images for updating the firmware of a communication sub-system of the control device and/or an application program image to update a management sub-system of the control device. | 2020-11-05 |
20200350779 | Connection of Battery System to Electrical Distribution Bus - A backup system for a power supply unit providing power to a load via a distribution bus includes a power source, a network of switching elements coupled between an output terminal of the power source and the distribution bus, diodes coupled in parallel with the switching elements, and a controller configured to selectively activate or deactivate each of the switching elements to enable the power source to power the load via the distribution bus. The switching elements may be transistors, and the diodes may be parasitic body diodes of the transistors. The power source may be a battery, such as a rechargeable battery. An output voltage level from the battery may be regulated by the controller as a function of a number of the activated or deactivated transistors. | 2020-11-05 |
20200350780 | COORDINATED NET-LOAD MANAGEMENT - A management device includes at least one processor communicatively coupled to at least one energy resource controller controlling at least one energy resource and to at least one deferrable load controller controlling power to at least one deferrable load. The is configured to receive an indication, determined based on a frequency value of an electrical network and a nominal frequency value, that a frequency anomaly event has occurred. Responsive to receiving the indication that the frequency anomaly event has occurred, the processor is also configured to determine, for at least one of the energy resource and the deferrable load, based on the frequency value, the nominal frequency value, and a power value of the electrical network, a respective power command, and cause at least one of the at least one energy resource and the at least one deferrable load to modify operation based on the respective power command | 2020-11-05 |
20200350781 | RADIOFREQUENCY-POWERED DEVICE, CORRESPONDING SYSTEM AND METHOD - A radiofrequency-powered device such as a wireless passive sensor node, for instance, comprises a radiofrequency energy harvesting circuit configured to be coupled to an antenna to harvest radiofrequency energy captured by the antenna from a radiofrequency signal. The radiofrequency energy harvesting circuit is configured to be coupled to an energy storage component to store therein energy harvested via the radiofrequency energy harvesting circuit. The device comprises user circuitry configured to be supplied with energy harvested via the radiofrequency energy harvesting circuit and to operate in accordance with one of a plurality of configurations as a function of configuration data supplied thereto. A receiver circuit coupled to the radiofrequency energy harvesting circuit is configured to receive a configuration data signal modulating the radiofrequency signal and supply to the user circuitry configuration data extracted from the configuration data signal received. | 2020-11-05 |
20200350782 | Wireless Charging Devices Having Wireless Charging Coils and Methods of Manufacture Thereof - Wireless charging devices, methods of manufacture thereof, and methods of charging electronic devices are disclosed. In some embodiments, a wireless charging device includes a controller, a molding material disposed around the controller, and an interconnect structure disposed over the molding material and coupled to the controller. The wireless charging device includes a wireless charging coil coupled to the controller. The wireless charging coil comprises a first portion disposed in the interconnect structure and a second portion disposed in the molding material. The wireless charging coil is adapted to provide an inductance to charge an electronic device. | 2020-11-05 |
20200350783 | RE-CHARGING PACK FOR AN E-CIGARETTE - Various embodiments provide a pack for holding and re-charging an e-cigarette. The pack includes a pack battery; a body portion including a tube for receiving an e-cigarette; a re-charging mechanism for re-charging the e-cigarette received into the tube using the pack battery, wherein the e-cigarette can be re-charged in the tube without disassembly of the e-cigarette; and a dual activation mechanism comprising two separate triggers for causing the re-charging mechanism to begin re-charging the e-cigarette received into the tube using the pack battery. The re-charging begins only in response to the direct activation by a user of both of the separate triggers. | 2020-11-05 |
20200350784 | WIRELESS NEAR-FIELD SELF-RESONANT IMPULSE RECEIVER - A wireless near-field self-resonant impulse receiver includes a receiver body constructed to receive energy from a low-frequency external field by using an appropriately tuned, high frequency antenna that operates in an impulse mode under preselected self-resonant conditions. | 2020-11-05 |
20200350785 | HIGH SENSITIVITY ENERGY HARVESTER - A power management circuit is provided. The power management circuit includes a plurality of detectors, wherein each of the plurality of detectors are configured with a different reference threshold voltage level; and a controller coupled to the plurality of detectors and configured to activate a subset of the plurality of detectors at any given time, wherein a subset of the plurality of detectors, when activated, are configured to provide a multi-level voltage level indication on a state of a voltage supply. | 2020-11-05 |
20200350786 | ELECTRIC POWER CHARGE AND DISCHARGE SYSTEM - An electric power charge and discharge system for an electronic device having a battery, by which the electronic device can be used for a long period of time. In a wireless communication device including a wireless driving portion including a first battery and a wireless charging portion including a second battery, the first battery is charged by electric power from a fixed power supply and the second battery is charged by using electromagnetic waves existing in an external space. Further, the first battery and the second battery are discharged alternately, and during a period in which the first battery is discharged, the second battery is charged. | 2020-11-05 |
20200350787 | Sensor Arrangement For A Foreign Object Detection Device - The invention relates to a sensor arrangement ( | 2020-11-05 |
20200350788 | METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION - A method of controlling a wireless power transmitter can include receiving, during a first determination phase, a foreign object detection status packet; before entering a first power transfer mode for transmitting first power and before entering a second power transfer mode for transmitting second power, determining whether a foreign object is present based on the foreign object detection status packet to generate a determination result; in response to determining that the foreign object is present based on the determination result, transmitting the first power according to the first power transfer mode; in response to determining that the foreign object is not present based on the determination result, transmitting the second power according to the second power transfer mode; and determining, during a second determination phase, whether the foreign object is present while transmitting the first power in the first power transfer mode. | 2020-11-05 |
20200350789 | Method and Apparatus for Active Device Recognition and Elimination of Cross-Talk Between Multiple Magnetic Resonance Chargers - A method and apparatus for preventing cross-talk in systems employing one-to-many magnetic resonance power transfer are disclosed. A method may include powering down a magnetic resonance coil, receiving an identifier from a power receive unit located at a predetermined charging location using close-range wireless communication, powering up the coil, receiving information from the power receive unit using short-range wireless communication addressed with the identifier, transferring energy from the power transfer unit to the power receive unit using the coil, and displaying an indication of the status of the battery to a display communicatively coupled to the power transfer unit. The predetermined location may be among a plurality of locations for a plurality of power receive units in proximity to the power transfer unit and the information received from the power receive unit may be indicative of a status of a battery electrically coupled to the power receive unit. | 2020-11-05 |
20200350790 | MODULAR, MOBILE POWER SYSTEM FOR EQUIPMENT OPERATIONS, AND METHODS FOR OPERATING SAME - A system to power pressure pumps and auxiliary equipment for oil and gas operations. The system includes a mobile system controller and energy storage unit electrically connected to pressure pumping and auxiliary loads. The system can also include a power generation source. One application of the technology is to pump fluids to an oil and gas end user which can be an oil or gas well, pipeline or plant. The system can be modularized and can be fully mobile and transportable by a variety of means. | 2020-11-05 |
20200350791 | MODULAR ELECTROMAGNETIC MACHINES AND METHODS OF USE AND MANUFACTURE THEREOF - An electromagnetic machine includes a housing, an axle coupled to the housing in a rotatable fashion, a stator assembly disposed generally within the housing, the stator assembly including a stator plate and a stator bearing coupled to the axle such that the stator assembly is rotatable about the axle, a rotor assembly fixed to the axle and disposed generally within the housing and including a rotor housing that defines a circumferentially extending channel that is sized to receive a portion of the stator assembly therein; and a locking mechanism configured to selectively prevent and permit rotation of the stator assembly about the axle via the stator bearing. The housing can include an access window defined therein such that the stator assembly is accessible through the access window. | 2020-11-05 |
20200350792 | ROTOR AND MOTOR INCLUDING SAME - An embodiment relates to a rotor and a motor comprising same, the rotor comprising: a rotor core; and a plurality of first magnets and second magnets arranged along the outer circumferential surface of the rotor core, wherein each of the second magnets is disposed between the first magnets, and the outer circumferential surface of each of the first magnets has a curvature greater than that of the outer circumferential surface of the second magnet. Therefore, the motor can reduce cogging torque by using the first magnet and the second magnet having different shapes, and thus can improve the quality of the motor. | 2020-11-05 |
20200350793 | ROTOR AND MOTOR - A virtual circle included in the through-hole as viewed from the axial direction is assumed in the through-hole. An inner peripheral surface of the through-hole includes a first side that is located on a radial inside with respect to the virtual circle and extends along the circumferential direction, a second side that is located on one side in the circumferential direction with respect to the virtual circle and extends along the radial direction, and a third side that is located on another side in the circumferential direction with respect to the virtual circle and extends along the radial direction. The second side and the third side contact with the virtual circle. The first side extends linearly or extends radially outward in a curved manner when viewed from the axial direction. | 2020-11-05 |
20200350794 | MOTOR ROTOR ASSEMBLY STRUCTURE - The motor rotor assembly structure includes a rotating shaft, a plurality of rotor cores formed by a plurality of rotor punches neatly laminated, and rotor pressure plates installed at front and rear ends of the rotor core. The rotor core is provided with a shaft hole for mounting the rotating shaft in the middle in an axial direction. Two rotor pressure plates press the plurality of rotor punches. The rotating shaft is a hollow shaft. The plurality of rotor punches has the same structure. Each of the rotor punches is provided with a plurality of sets of positioning holes. The plurality of rotor punches is positioned and fixed to the rotating shaft through the plurality of sets of positioning holes to realize oblique poles between rotor segments. The motor rotor assembly structure is made by laminating one type of rotor punches. | 2020-11-05 |
20200350795 | GENERATOR FIELD AMORTISSEUR & SPRING AXIAL LOCKING MECHANISM - The present application provides an amortisseur-spring assembly for use about at least one of a wedge and a retaining ring of a generator. The amortisseur-spring assembly may include an amortisseur, a spring, a creepage block, and a locking mechanism extending through the amortisseur, the spring, and the creepage block. | 2020-11-05 |
20200350796 | ELECTRIC MOTOR WASTE HEAT MODE TO HEAT BATTERY - An electric motor includes a case, a stator that includes end-windings, a rotor coupled to the case via at least one rotor bearing, at least one drive motor fluid pump, and drive motor electronics. The rotor includes a hollow cylindrical body, a first shaft portion, and a second shaft portion, a fluid feed tube having a fluid receive end and a fluid feed end, the fluid feed end extending into the hollow cylindrical body, and a plurality of fluid exit ports. The drive motor electronics power the stator with or without causing rotation of the rotor. The drive motor fluid pump pumps fluid into the hollow cylindrical body via the fluid feed tube, pumps the fluid out of the plurality of fluid ports, and onto the stator end-windings to collect heat from the rotor and the stator. The heated fluid may be used for heating a battery. | 2020-11-05 |
20200350797 | GEOMETRY FOR SINGLE-LAYER WOUND STATORS WITH HIGH MANUFACTURABILITY - An electric motor comprises a stator and a rotor having a specified number of rotor poles that magnetically interact with the stator so as to rotate in relation to the stator. The stator is a slotted stator with a specified number of stator poles with slots between those poles and is provided with a set of conductive windings that are fitted into the slots and wound around the stator poles according to a specified pattern. The motor has a single-layer winding configuration, wherein there are one or more empty stator poles without windings on each side adjacent to those stator poles with a winding, so that only one set of windings is present in each slot. Stator poles with a winding terminate in a stator shoe, while stator shoes are absent from each empty stator pole, thereby expanding the gap for machine winding into the slots. | 2020-11-05 |
20200350798 | ACTUATOR STATOR - An actuator for high rotational speed applications using a stator which utilizes laminated features to reduce Eddy current losses in the stator. This construction allows high pole counts while providing the efficiency and high-speed benefits of a laminated construction. Laminated construction is very challenging for a high pole count lightweight motor, but embodiments of the device provide structural strength, and rigidity, as well as other benefits such as low manufacturing cost, high heat dissipation, integrated cooling channels, and light weight construction. Many of these benefits result from the use of a laminate sandwich of non-magnetic, heat conductive material, such as anodized aluminum, as a structural member of the stator. | 2020-11-05 |
20200350799 | COOLING APPARATUS FOR LINEAR MOTOR WITH IMPROVED SEALING - A cooling apparatus for an electric linear motor includes a carrier element configured for placement on an active part of the electric linear motor, a cooling element, and a retaining element configured to mount the cooling element on the carrier element. The retaining element has a first planar area on a side facing the active part of the electric linear motor and a second planar area on a side facing away from the active part of the electric linear motor. The retaining element has an opening sized to extend between the first and second planar areas for passage of a fastening element. Each of the first and second planar areas has formed therein a cutout circulating around the opening, with a sealing element being received in the cutout. | 2020-11-05 |
20200350800 | SYSTEM AND METHOD FOR COOLING AN ELECTRIC MACHINE - Disclosed are various embodiments for new and improved system and method for cooling a coil assembly of electric motor/generators with a cooling structure having an interior radial wall positioned within an exterior radial wall to form a Venturi tube, and a first end of a cooling tube positioned within the Venturi tube, such that cooler air is drawn into a second end of the cooling tube by the Venturi effect and heat is transferred from at least one of the plurality of coils of the coil assembly to the cooler air. | 2020-11-05 |
20200350801 | MOTOR - A motor includes a sheet-metal cover accommodating a stator and a substrate and a wiring assembly electrically connected to the substrate. The cover includes a wiring lead port, which is open to a wall of the cover and communicates with an outside and an inside of the cover. The wiring assembly includes cables connected to the substrate and extending from the inside of the cover to the outside through the wiring lead port, a sleeve with a tubular shape into which the cables are inserted, the sleeve having an elastic modulus smaller than an elastic modulus of a coated portion of the cable, and a binder that bundles the cables through the sleeve. The sleeve is opposed to the wiring lead port from the inside of the cover, and an outer diameter of the sleeve is larger than an inner diameter of the wiring lead port. | 2020-11-05 |
20200350802 | TERMINAL CONNECTOR ASSEMBLY FOR VEHICLE ELECTRIC MACHINE - A vehicle electric machine assembly including a stator core and a terminal block is provided. The stator core includes one or more three-phase terminals connected to end windings. The terminal block includes a connector for each of the three-phase terminals. A portion of the end windings extending from the stator core, the three-phase terminals, and the terminal block are overmolded as a single unit such that a portion of each of the connectors is exposed for connection to an inverter. The terminal block may further include one or more threaded apertures, each sized to receive a threaded stud to facilitate an electrical connection between one of the one or more three-phase terminals and the inverter. Each of the one or more three-phase terminals may extend axially along an axis substantially parallel to a central axis of a rotor disposed within a cavity defined by the stator core. | 2020-11-05 |
20200350803 | ACTUATOR - An actuator with which fixation of a sliding surface is unlikely to occur and a desired operation can be reliably performed. An actuator includes a housing, a shaft having one end side accommodated in the housing, having the other end side installed outside the housing, and movable along an axial direction, a polymer material actuator, accommodated in the housing, having one end connected to an inside of the housing, having the other end connected to the shaft, and extended and contracted by voltage application, and a movement adjustment unit adjusting a movement of the shaft in accordance with a position of the shaft. The movement adjustment unit has an electric motor installed in the housing, a cam connected to the electric motor and rotating by a drive force of the electric motor, and a cam follower provided on the shaft and abutting against the cam. | 2020-11-05 |
20200350804 | ELECTRIC MOTOR AND TURBO-COMPRESSOR - The stator includes a stator core, a support electric wire formed by one or more conductive wires, and a drive electric wire formed by one or more conductive wires. The stator core includes an annular shaped back yoke and a plurality of teeth on an inner periphery of the back yoke. The support electric wire is disposed so as to pass through a plurality of slots respectively formed between the teeth, and forms a winding portion that generates an electromagnetic force for supporting the rotor in a non-contact manner by being energized. The drive electric wire is disposed so as to pass through the plurality of slots, and forms a winding portion that generates an electromagnetic force for rotating the rotor by being energized. A cross-sectional area per conductive wire of the support electric wire differs from a cross-sectional area per conductive wire of the drive electric wire. | 2020-11-05 |
20200350805 | MAGNETIC SHIELD FOR A SUPERCONDUCTING GENERATOR - An annular rotating armature is presented. The annular rotating armature includes an armature winding having a plurality of coils, an armature support structure and a magnetic shield disposed between the armature winding and the armature support structure. The magnetic shield having a first magnetic shield ring, a second magnetic shield ring disposed concentric to the first magnetic shield ring and coupled to the first magnetic shield ring via a magnetic shield bridge link. An air gap is formed between the first magnetic shield ring and the second magnetic shield ring. The magnetic shield bridge link is disposed within the air gap. A superconducting generator including the annular rotating armature and a wind turbine having such superconducting generator are also presented. | 2020-11-05 |
20200350806 | METHOD AND DEVICE FOR AUTOMATICALLY PRODUCING A STATOR OF AN ELECTRIC MACHINE - The invention relates to a method and a device for the automated manufacturing of a semi-finished product of a stator ( | 2020-11-05 |
20200350807 | METHOD AND DEVICE FOR PRODUCING A STATOR - The invention relates to a method for automatedly manufacturing a stator component, as well as a device for manufacturing a stator component comprising at least one hollow-cylindrical stator pack having a plurality of rod-shaped electrical conductor elements inserted into the stator pack, said conductor elements projecting substantially to the same distance out of the stator pack at the base side as conductor ends while at the front side the conductor ends project out of the stator pack according to their respectively prescribed length, and wherein the stator pack has at least one positioning mark, which is placed in the outer lateral surface of the stator pack and extends in the direction of the main axis of the stator pack and which serves for orienting and positioning the stator pack with respect to at least one forming tool. | 2020-11-05 |
20200350808 | SUPER-SYNCHRONOUS MOTOR/GENERATOR - A compound motor-generator system including a first motor-generator and a second motor-generator. The first motor generator includes a stator having a set of three-phase field windings and a first rotor disposed inside and coaxial with the stator and configured to rotate relative to the stator. The second motor-generator includes a rotational stator and a second rotor coupled to a common shaft with the rotor of the first motor-generator and disposed inside and coaxial to the rotational stator. The rotational stator is configured to rotate relative to the second rotor and at a higher rotational speed than the second rotor. | 2020-11-05 |
20200350809 | METHOD FOR CONTROLLING A SYNCHRONOUS DOUBLE STATOR ELECTRIC MACHINE - A method for controlling a synchronous double stator electric machine. A first stator and a first set of magnetic poles on a common rotor forms a first electric machine. A second stator and a second set of magnetic poles on the rotor forms a second electric machine. The first electric machine and the second electric machine is shifted mechanically by a predetermined angle. An electrical shift is produced to the control of at least the mechanically shifted electric machine with a respective frequency converter in order to at least partly compensate for the mechanical shift in the mechanically shifted electric machine. | 2020-11-05 |
20200350810 | LINEAR VIBRATION ACTUATOR MOTOR - A linear vibration actuator motor comprises a housing, a coil, a conductive sheet, a bracket, a magnet assembly and two elastic members. The coil is fixed to the bottom wall of the housing. The conductive sheet is fixed to the top wall of the housing and is located above the coil. The bracket is disposed in an accommodating space of the housing, forming framed space, and located above the coil and below the conductive sheet. The magnet assembly is disposed in the framed space above the coil and directly below the conductive sheet. The two elastic members are respectively located between two ends of the bracket and the inner side of two side walls of the housing. Thereby, the invention utilizes the induced current to provide resistance to achieve the damping effect against the motion of the assembly of the bracket and the magnet set with respect to conductive sheet. | 2020-11-05 |
20200350811 | MAGNETIC GEAR USING CAN - A magnetic gear using a can and the magnetic gear includes: an inner rotor formed with inner spaces where magnets are respectively disposed therein; a guide can surrounding the circumference of the inner rotor; and an outer rotor surrounding the circumference of the guide can. In particular, the guide can is in contact with the inner rotor, thereby securing the rigidity of the inner rotor. | 2020-11-05 |
20200350812 | MAGNETIC COUPLING ELEMENT WITH A MAGNETIC BEARING FUNCTION - The invention relates to a magnetic coupling element ( | 2020-11-05 |
20200350813 | DRIVING CIRCUIT FOR SEMICONDUCTOR ELEMENT, METHOD FOR DRIVING SEMICONDUCTOR ELEMENT, AND MOTOR CONTROL APPARATUS - A driving circuit for a semiconductor circuit which includes a pair of main terminals through which a main current is conducted and a control terminal to which a control voltage is applied to control a circulation state of the main current, includes: driving voltage switching circuitry that receives a control signal, instructs switching between driving voltages based on a change in the control signal, and outputs a driving voltage, among the driving voltages, that has been selected in the switching; low-speed control circuitry that instructs an increase-decrease change in the control voltage at a low speed; speed-increase control circuitry that executes a speed-increase control of increasing a speed of the increase-decrease change made by the low-speed control circuitry; and speed-increase switching circuitry that instructs switching between an execution and a non-execution of the speed-increase control, and instructs switching between levels of a speed-increase change caused by the speed-increase control. | 2020-11-05 |
20200350814 | NEGATIVE VOLTAGE GENERATION CIRCUIT AND POWER CONVERSION DEVICE USING SAME - A negative voltage generation circuit 200 includes a first DC voltage source 201 having a positive terminal connected to a first node N1 (Vin), a first diode 202 having a cathode connected to a negative terminal of the first DC voltage source 201 and an anode connected to an output terminal of a first negative voltage VC1 (fourth node N4), and a first capacitor 204 having a first terminal connected to an output terminal of the first negative voltage VC1 and a second terminal connected to a second node N2 (Vs_high), so as to supply the first negative voltage VC1 to a first driver 20 that performs switching control of a first NMOSFET 11 (first switch element) connected between the first node N1 (Vin) and the second node N2 (Vs_high). | 2020-11-05 |
20200350815 | RESONANT CONVERTER AND CONTROL METHOD - The present disclosure provides a resonant converter and a control method. The resonant converter includes: a primary side circuit including at least one set of primary side switches, where the primary side circuit is configured to receive an input voltage; a resonant network coupled to the primary side circuit; a transformer having a primary side winding and a secondary side winding, where the primary side winding is coupled to the resonant network; a secondary side circuit including at least one set of secondary side switches, where the secondary side circuit is coupled to the secondary side winding of the transformer; and a control block that controls the secondary side switches according to the input voltage, the output voltage and the current detection signal, so that the secondary side winding of the transformer is short-circuited during a preset time interval before operating state of the primary side switches changes. | 2020-11-05 |
20200350816 | Active Harmonics Cancellation - Systems and methods are described for active harmonics cancellation. A wireless charging apparatus includes a wireless-power transfer circuit comprising a wireless-power transfer coil configured to generate or couple to a magnetic field to transfer or receive power and a plurality of tuning capacitors electrically coupled to the wireless-power transfer coil. The apparatus also includes a power converter circuit electrically coupled to the wireless-power transfer circuit. Additionally, the apparatus includes a signal generation circuit different from the power converter circuit and electrically coupled to one or more nodes between capacitors of the plurality of tuning capacitors. The signal generation circuit is configured to generate and inject a signal into the wireless-power transfer circuit at the nodes between the capacitors. The signal generation circuit includes a rejection filter tuned to an operating frequency of the wireless-power transfer coil. | 2020-11-05 |
20200350817 | MULTIPLE OUTPUT VOLTAGE CONVERSION - Voltage dividing circuitry is provided for use in a voltage converter for converting at least one input Direct Current, DC voltage to a plurality of output DC voltages. The voltage dividing circuitry including a voltage input port to receive an input DC voltage and an inductor having an input-side switch node and an output-side switch node. The output side switch node is connectable to one of a plurality of voltage output ports to supply a converted value of the input DC voltage as an output DC voltage. The flying capacitor interface has a plurality of switching elements and at least one flying capacitor, to divide the input DC voltage to provide a predetermined fixed ratio of the input DC voltage at the input-side switch node of the inductor. A voltage converter and a power management integrated circuit having the voltage dividing circuitry are also provided. | 2020-11-05 |
20200350818 | POWER CONVERTER WITH MODULAR STAGES CONNECTED BY FLOATING TERMINALS - An apparatus for electric power conversion includes a converter having a regulating circuit and switching network. The regulating circuit has magnetic storage elements, and switches connected to the magnetic storage elements and controllable to switch between switching configurations. The regulating circuit maintains an average DC current through a magnetic storage element. The switching network includes charge storage elements connected to switches that are controllable to switch between plural switch configurations. In one configuration, the switches forms an arrangement of charge storage elements in which at least one charge storage element is charged using the magnetic storage element through the network input or output port. In another, the switches form an arrangement of charge storage elements in which an element discharges using the magnetic storage element through one of the input port and output port of the switching network. | 2020-11-05 |
20200350819 | PHASE REGULATION IN A PEAK CURRENT MODE POWER CONVERTER - A power converter circuit that includes a switch node coupled to a regulated power supply node via an inductor may, during a discharge cycle, sink current from the regulated power supply node. A control circuit may generate the rising and falling ramp signals using voltage levels of an input power supply node and the regulated power supply node. The control circuit may also determine a duration of the discharge cycle using results of comparing respective voltage levels of the generated rising and falling ramp signals. | 2020-11-05 |
20200350820 | POWER CONVERTER - A DC/DC power converter has an input terminal, an output terminal, and a ground terminal. The DC/DC power converter comprises two capacitors connected in series between the output terminal and the ground terminal, a boost converter having a first boost converter terminal connected to the input terminal, a second boost converter terminal connected to the output terminal, and a third boost converter terminal connected to a connection point between the capacitors, and a step-up converter having a first step-up converter terminal connected to the ground terminal, a second step-up converter terminal connected to the output terminal, and a third step-up converter terminal connected to the connection point. | 2020-11-05 |
20200350821 | Hybrid DC-DC Power Converter with Small Voltage Conversion Ratio - A power converter and method to provide a small conversion ratio between an input and an output voltage. The power converter has an inductor coupled to the input port of the power converter. The power converter has a first stage with an input node; a first switch; a second switch; a third switch coupled to the second switch of the first stage and to a reference potential; and a flying capacitor coupled to the input node. The power converter also has a second stage with an input node; a first switch coupled to the input node of the second stage and to the output port of the power converter; a second switch coupled to the input node of the first stage; a third switch coupled to the second switch of the second stage and to the reference potential; and a flying capacitor coupled to the inductor. | 2020-11-05 |
20200350822 | DIGITAL CURRENT MODE CONTROL FOR MULTI-PHASE VOLTAGE REGULATOR CIRCUITS - A voltage regulator circuit included in a computer system may include multiple phase circuits each coupled to a regulated power supply node via a corresponding inductor. The phase circuits may modify a voltage level of the regulated power supply node using respective control signals generated by a digital control circuit that processes multiple data bits. An analog-to-digital converter circuit may compare the voltage level of the regulated power supply node to multiple reference voltage levels and sample the resultant comparisons to generate the multiple data bits. | 2020-11-05 |
20200350823 | POWER CONVERSION APPARATUS - A power conversion apparatus including a transformer, a power switch, a pulse width modulation (PWM) signal generator, an energy storage element, and a power circuit is provided. A primary winding of the transformer receives an input voltage from an external power source. An auxiliary winding of the transformer provides an auxiliary voltage. The power switch is coupled to the primary winding. The PWM signal generator generates a PWM signal to control on and off the power switch. The energy storage element is coupled to a power terminal of the PWM signal generator. The power circuit supplies power to the PWM signal generator and charges the energy storage element according to the auxiliary voltage. When a voltage of the energy storage element is greater than or equal to a threshold voltage, the power circuit stores backup power according to the auxiliary voltage. When the external power source stops providing the input voltage, the power circuit supplies power to the PWM signal generator and charges the energy storage element according to the backup power. | 2020-11-05 |
20200350824 | Efficient High Voltage Power Supply for Pulse Capacitor Discharge Applications - An efficient high voltage power supply suitable for capacitor discharge applications is provided by eliminating the need for complex timing controls and the addition of parts required for capacitor discharge applications. The use of three steps in the inverter section, a charge, discharge and revert steps, generally eliminates the complex timing requirements typically associated with high voltage power supplies while still achieving high efficiency. The addition of a high voltage relay, resistor, and appropriately specified diodes in the rectifier section makes the power supply more applicable for use in capacitor discharge applications than existing commercial off-the-shelf high voltage power supplies. | 2020-11-05 |
20200350825 | ACTIVE CLAMPING WITH BOOTSTRAP CIRCUIT - An active clamp circuit for a power converter having a transformer includes a switch having a drain node, a gate node, and a source node, the drain node configured to be connected to a first terminal of a primary winding of the transformer, a capacitor having a first terminal connected to the source node, and a second terminal to be connected to a second terminal of the primary winding, a gate driver coupled to the gate node to control the switch and having a high-side input node and a low-side input node, the low-side input node being coupled to the first terminal of the capacitor, and a voltage regulator to: i) receive an input voltage from the second terminal of the capacitor, and ii) provide a regulated voltage to the high-side input node using the input voltage and being of a sufficient voltage level to control the switch. | 2020-11-05 |
20200350826 | MULTI-PHASE RESONANT CONVERTER AND METHOD OF CONTROLLING IT - A PWM controlled multi-phase resonant voltage converter may include a plurality of primary windings powered through respective half-bridges, and as many secondary windings connected to an output terminal of the converter and magnetically coupled to the respective primary windings. The primary or secondary windings may be connected such that a real or virtual neutral point is floating. | 2020-11-05 |
20200350827 | EFFICIENT WIDE VOLTAGE RANGE QUASI-PARALLEL VOLTAGE REGULATOR - Aspects of an efficient, wide voltage range, power converter system are described. In one example, a power converter system includes a first power converter, a second power converter, and a controller for the power converter. An input of the first power converter and an input of the second power converter are connected in series across an input voltage for the power converter system, and an output of the first power converter and an output of the second power converter are connected in parallel at an output of the power converter system. The controller is configured to regulate the second power converter and to determine whether or not to regulate the first power converter based on the input voltage for the power converter system and an output voltage of the power converter system, among other factors, for greater efficiency of the power converter system over wider input and output voltage ranges. | 2020-11-05 |
20200350828 | POWER CONVERSION APPARATUS - A power conversion apparatus includes a plurality of power conversion units, a common bus bar, and a plurality of unit bus bars provided so as to correspond to the plurality of the power conversion units respectively and connecting each DC side of the plurality of the power conversion units to the common bus bar. Each of the power conversion units includes a casing having a first surface on which a first outer plate of a magnetic material is arranged, and the first outer plate is arranged in a vicinity of a corresponding unit bus bar and faces the corresponding unit bus bar with a gap so that an inductance value of the corresponding unit bus bar is increased to an inductance value capable of suppressing an inflow of a ripple current from another power conversion unit in the power conversion apparatus. | 2020-11-05 |
20200350829 | POWER CONVERTER - An object of the present invention is to ensure the reliability of a capacitor element by appropriately securing a heat path around the capacitor element. | 2020-11-05 |
20200350830 | POWER CONVERSION DEVICE - A power conversion device according to an embodiment includes an element unit and a capacitor unit. The element unit includes a first positive electrode bus, a first negative electrode bus, and a first outer frame member. The capacitor unit includes a second positive electrode bus, a second negative electrode bus, and a second outer frame member. The first outer frame member and the second outer frame member are separable from each other. The first positive electrode bus and the second positive electrode bus are removably connected to each other. The first negative electrode bus and the second negative electrode bus are removably connected to each other. | 2020-11-05 |
20200350831 | CORELESS CURRENT SENSOR FOR HIGH CURRENT POWER MODULE - A power module is provided that is configured to supply power to a load. The power module includes a current generator, a current rail, and a magnetic sensor. The current generator is configured to generate a current. The current rail is configured to receive the current and output the current from the power module. The current rail includes a first opening formed therethrough, and the current, while flowing along the current rail in an output direction, produces a magnetic field. The magnetic sensor is disposed in the first opening of the current rail, and is configured to generate a differential sensor signal based on the magnetic field impinging thereon. The current generator is further configured to regulate the current based on the differential sensor signal. | 2020-11-05 |
20200350832 | POWER CONVERSION APPARATUS - According to an embodiment, there is provided an apparatus which can hold down an energy loss and can avoid an increase in size. The apparatus includes a cell including a floating capacitor connected in parallel to an upper-side switching element and a lower-side switching element; an upper arm include including first switch circuits, each including a first switching element, a first diode and a first capacitor, are connected in series; a lower arm including second switch circuits, each including a second switching element, a second diode and a second capacitor, are connected in series; and a circuit which connects a low-side terminal of the cell and a low-side terminal of the first capacitor and connects a high-side terminal of the cell and a high-side terminal of the second capacitor. | 2020-11-05 |
20200350833 | PYRAMID-TYPE MULTILEVEL CONVERTER TOPOLOGY - A pyramid-type multilevel converter for converting DC voltage to AC voltage waveforms, and vice versa. An example device can use modular building blocks to form a selector stage, a converter stage, and at least one intermediate stage if the number of converters within the converter stage is greater than or equal to 3, with the converter stage switching at high-frequency PWM to chop the DC voltages. The modular building blocks are connected in a symmetric or asymmetric pyramid configuration having a base of using the converter stage and an apex of the selector stage. | 2020-11-05 |
20200350834 | WIND TURBINE WITH REDUCED DC-VOLTAGE RESERVE - The invention relates to a method for operating a wind turbine which comprises a power generator, a generator side converter, a grid side converter, a DC link electrically connected to an output of the generator side converter and an input of the grid side converter. The method comprises monitoring a wind turbine signal for detection of an operational condition which requires an increase of an output voltage of the grid side converter, upon detection of the operational condition, initiate an over-modulation mode wherein the grid side converter is operated with a modulation index in an over-modulation range, and upon the detection of the operational condition, initiate a DC-voltage adjustment mode wherein the a DC-voltage of the DC link is increased from a first voltage level towards a second voltage level. | 2020-11-05 |
20200350835 | BALANCER CIRCUIT - An apparatus includes a DC-to-AC converter comprising a first output terminal and a second output terminal. The apparatus also includes a DC-to-DC converter comprising a third output. The DC-to-AC converter is configured to receive a DC input voltage from a DC power source, and to produce a first alternating output voltage at the first output terminal, and a second alternating output voltage at the second output terminal. The DC-to-DC converter is configured receive a DC input voltage from the DC power source, and to step down the DC input voltage at the third output. | 2020-11-05 |
20200350836 | MODULAR MULTIPOINT POWER CONVERTER AND METHOD OF OPERATING IT - A modular multipoint power converter ( | 2020-11-05 |
20200350837 | VIRTUAL RESISTIVE LOAD IN FEEDBACK LOOP DRIVING A PIEZOELECTRIC ACTUATOR - A virtual resistive load feedback circuit for driving a piezoelectric actuator is provided that accounts for a hysteresis error and drift within the movement of the actuator. The circuit may include a voltage divider and charge divider. A voltage monitor signal corresponding to a voltage of a driver signal and a current monitor signal corresponding to a current provided to the amplifier are combined by an operational amplifier and include electrical characteristics of the actuator such that the circuit approximates a virtual load across the actuator. A feedback portion of the operational amplifier may include a resistor and capacitor connected in parallel to provide the voltage and charge divide functions. The use of the virtual resistive circuit allows for the piezoelectric actuator to be ground referenced, with no external components connected directly to the actuator while gaining the feedback effect to counter the hysteresis and drifts errors of the actuator. | 2020-11-05 |
20200350838 | VIBRATION WAVE MOTOR AND OPTICAL DEVICE - A vibration wave motor includes an element configured to be displaced by application of voltage, and an annular elastic body having a bottom surface coming into contact with the element and a drive surface having a groove, configured to drive a moving element by a vibration wave produced on the drive surface by displacement of the element. The element has a density of 4.2 to 6.0×10 | 2020-11-05 |
20200350839 | IDENTIFICATION METHOD AND IDENTIFICATION DEVICE FOR IDENTIFYING TYPE OF BRUSHLESS DC MOTOR, AND BRUSHLESS DC MOTOR - An identification method includes supplying a motor power supply voltage from an identification device to a brushless DC motor via a power line, receiving the supply of the power supply voltage to rotate the brushless DC motor in accordance with a Pulse Width Modulation (PWM) signal output from a drive circuit of the brushless DC motor, superimposing an identification signal with a same frequency as that of the PWM signal on a power supply current flowing through the power line upon rotation of the brushless DC motor, acquiring the power supply current flowing through the power line, detecting the frequency of the identification signal superimposed on the power supply current, and identifying information about the brushless DC motor based on the detected frequency of the identification signal. | 2020-11-05 |
20200350840 | METHOD FOR DETERMINING AN OFFSET OF AN ANGULAR POSITION ENCODER ON A ROTOR SHAFT OF AN ELECTRIC MACHINE - A method for determining an offset of an angular position encoder is associated with a rotor of an electric machine, wherein a reference offset of a reference angular position encoder of a reference electric machine is known at a reference rotational speed and a reference current with a reference phase angle and a reference absolute value. The method includes the steps of applying a current having the reference absolute value; setting a phase angle of the current to achieve the reference rotational speed; comparing the phase angle with the reference phase angle and the reference offset; and determining the offset on the basis of this comparison. | 2020-11-05 |
20200350841 | ELECTRICAL ASSEMBLY - An electrical assembly includes a motor, a first switch, a second switch, a third switch, and a fourth switch. The first switch may be connected to a first contact of the motor, and/or the second switch may be connected to a second contact of the motor. The third switch may be connected to the first switch, and/or the fourth switch may be connected to the second switch. The first switch, the second switch, the third switch, and/or the fourth switch may be configured to switch the electrical assembly between a first state, a second state, and/or a third state. If the electrical assembly is in the first state, at least one of the first contact and/or the second contact of the motor may be connected to an open circuit, and/or the motor may be configured to rotate freely. | 2020-11-05 |
20200350842 | METHOD FOR CONTROLLING A MULTIPHASE SEPARATELY EXCITED SYNCHRONOUS GENERATOR IN A WIND TURBINE - A method for controlling a multiphase separately excited synchronous generator in a wind turbine is provided. The generator has a stator and an armature having an excitation input, connected to an excitation controller, for inputting an excitation current or an excitation voltage. The stator has a stator output, connected to a rectifier, for delivering stator currents. The rectifier is controllable to control the stator currents by detecting a speed of the armature or rotor, determining a setpoint power to be delivered by the generator or the turbine based on the speed, determining an excitation current or voltage based on the detected speed and determined setpoint power, inputting the excitation current or voltage by excitation controller at the excitation input, determining the stator currents as setpoint stator currents based on the speed and the setpoint power, and controlling the rectifier to set the stator currents to the setpoint stator currents. | 2020-11-05 |
20200350843 | METHOD FOR DETERMINING A ROTOR POSITION OF A THREE-PHASE MACHINE WITHOUT USING A ROTARY ENCODER AND DEVICE FOR CONTROLLING A THREE-PHASE MOTOR WITHOUT USING A ROTARY ENCODER - In a method for determining the rotor position of a three-phase machine without using a rotary encoder, and a device for controlling a three-phase motor without using a rotary encoder, the three-phase machine is fed by a converter that can be operated by pulse-width modulation, and the converter has model variables for the rotor angle and the current indicator of the three-phase machine, and the converter has device(s) by using which, in control operation, at least two values are measured which represent a measure of the local inductances of the machine which represent a measure of the local inductances of the machine, the error of the model rotor angle is determined in that, depending on the model rotor angle and the model current indicator, at least two weighting factors are determined, and in that a weighted sum is formed from the at least two measured values and the at least two weighting factors, and in that a further offset value is substracted from the sum, which is likewise determined on the basis of the model rotor angle and the model current indicator. | 2020-11-05 |
20200350844 | Control Device for Controlling the Current of a Rotating Field Machine of a Motor Vehicle, Current Control Method, Drive Unit and Motor Vehicle - A control device for controlling the current of a rotating field machine of a motor vehicle, includes a current controller for determining a fundamental of an output voltage for a respective operating point, a controller for modulating the output voltage by driving a rectifier of the control device based on a pulse pattern optimized offline for the respective operating point, and a current sensor for sampling a harmonics-impacted output current, resulting from the pulse pattern that is used, of the rectifier and for returning the sampled output current to the current controller. Sampling times for sampling the output current are optimized offline in a manner specific to the pulse pattern and are predetermined as those times at which a deviation between the harmonics-impacted output current and a fundamental of the output current is less than a predetermined threshold value. | 2020-11-05 |
20200350845 | DEVICE AND METHOD FOR DETERMINING ROTATION OF AN INDUCTION MACHINE - A device for estimating a rotation speed and/or a direction of rotation of an induction machine is presented. The device controls stator voltages (uu, uv, uw) of the induction machine so that a voltage space-vector constituted by the stator voltages has a fixed direction and a current space-vector constituted by stator currents (iu, iv, iw) of the induction machine has a pre-determined length or a predetermined d-component. The rotation speed and/or the direction of rotation is/are estimated based on a waveform of a q-component of the current space-vector, where the d-component of the current space-vector is parallel with the voltage space-vector and the q-component of the current space-vector is perpendicular to the voltage space-vector. The device is usable when the induction machine does not have enough magnetic flux for flux-based determination of the rotation speed and/or the direction of rotation. | 2020-11-05 |
20200350846 | MOTOR POSITION CONTROL BASED ON SERVO-TO-EDGE DIRECTION FEEDBACK - System, apparatus, and methods for controlling a motor by using servo-to-edge direction feedback are disclosed. An exemplary apparatus comprises: a fiber optic rotary junction (FORJ) having a rotatable portion; a motor to rotate the rotatable portion; a connector to connect the rotatable portion to a rotatable fiber of an imaging probe; a sensor positioned in close proximity to a target and configured to output a signal indicative of which one of at least two distinguishable regions of the target is proximal to the sensor; and a controller configured to control the rotational direction of the motor based on the sensor signal. In one embodiment, the motor is a servo-motor, and the rotation of the motor and/or rotatable portion is controlled by a servo-loop to change the rotation direction of the motor back-and-forth around a predetermined rotational position without the use of an encoder. | 2020-11-05 |
20200350847 | MODEL PREDICTIVE CONTROL OF A CONVERTER BASED ON PULSE WIDTH MODULATED SWITCHING PATTERNS - A method for controlling a three-phase electrical converter including: selecting a three-phase optimized pulse pattern from a table of pre-computed optimized pulse patterns based on a reference flux; determining a two-component optimal flux from the optimized pulse pattern and determine a one-component optimal third variable; determining a two-component flux error from a difference of the optimal flux and an estimated flux estimated based on measurements in the electrical converter; determining a one-component third variable error from a difference of the optimal third variable and an estimated third variable; modifying the optimized pulse pattern by time-shifting switching instants of the optimized pulse pattern such that a cost function depending on the time-shifts is minimized, wherein the cost function aincludes a flux error term and a third variable error term, wherein the flux error term is based on a difference of the flux error and a flux correction function providing a flux correction based on the time-shifts and the third variable error term is based on a difference of the third variable error and a third variable correction function providing a third variable correction based on the time-shifts; and applying the modified optimized pulse pattern to the electrical converter. | 2020-11-05 |
20200350848 | Device for Protecting an Electrical Machine - An apparatus for protecting an electrical machine in the event of a fault, the electrical machine having six phase terminals includes a monitoring unit for detecting a fault of the electrical machine and a switchover unit for switching the electrical machine from a normal operating state into a short-circuit operating state if a fault of the electrical machine is detected. The switchover unit is designed to short-circuit the six phase terminals of the electrical machine asynchronously in accordance with a predefined pattern. | 2020-11-05 |
20200350849 | WIPER DEVICE - A wiper device is provided. A boost control unit, if a duty ratio has reached an upper limit value determined in advance, and if the rotational speed of a motor is less than a target rotational speed, varies an advance angle and an energization angle associated with the energization of the motor in accordance with the target rotational speed. An overtemperature protection unit monitors a load state of the motor, and, upon detecting a high-load state, performs a first protection control for decreasing the rotational speed of the motor. A demagnetization protection unit, upon receipt of an operating signal from a wiper switch when the temperature detected by means of a temperature sensor exceeds a first threshold and the first protection control is being performed, performs a second protection control for fixing the advance angle and energization angle of the motor by prohibiting the operation of the boost control unit. | 2020-11-05 |
20200350850 | A Method and System for Installing Photovoltaic Solar Panels in an Outdoor Area - A system for positioning a row of photovoltaic solar panels ( | 2020-11-05 |
20200350851 | METHODS FOR LOADING BATTERY STORAGE COMPARTMENTS INTO A SOLAR CANOPY SUPPORT STRUCTURE - The present application provides methods for loading and unloading high capacity storage equipment to a solar power canopy. The methods and structures may include horizontal support members have mechanisms to engage corresponding mechanisms on a compartment housing the high capacity storage equipment. The mechanisms may include plates, flanged surfaces, rails, tracks, hook assemblies, and ridges. The methods and structures may include a superstructure that is coupled to an moves with respect to the solar power canopy frame. The superstructure may pivot and/or rotate to allow loading and unloading. The methods and structures also may include cabinets or cubicles sized to receive one or more compartments housing the high capacity storage equipment. | 2020-11-05 |
20200350852 | APPARATUS FOR ALIGNING A SOLAR CELL ELEMENT, SYSTEM FOR USE IN THE MANUFACTURE OF A SOLAR CELL ARRANGEMENT, AND METHOD - The present disclosure provides an apparatus ( | 2020-11-05 |
20200350853 | TILTING SOLAR PANEL MOUNT - An example device for mounting for a solar array may include a solar panel carrier configured to receive a solar array to form a panel assembly; a pivot configured to pivotably secure the solar panel carrier with respect to a support structure; and/or a restoring moment element operatively connected to the solar panel carrier and configured to exert a restoring moment on the solar panel carrier opposite in direction and approximately equal in magnitude to a gravitational moment of the panel assembly when the solar panel carrier is tilted to various angular positions. When the solar panel carrier is at a nominal angular position, a center of gravity of the panel assembly may be above and substantially vertically aligned with the pivot axis. | 2020-11-05 |
20200350854 | PORTABLE SOLAR PHOTOVOLTAIC ARRAY - A portable PV module array, the modules being connected along adjacent end edges and being foldable relative to each other about the connected end edges between a closed condition and an open condition, whereby: in the closed condition, the PV modules are stacked together in a generally parallel and close facing relationship with the edges of the PV modules in general alignment, and in the open condition, the PV modules are disposed at an angle to each other so that the PV module array defines triangular configuration, and foldable movement of the PV modules from the closed condition to the open condition being restricted against movement beyond the open condition by a flexible connector that connects with a connection point associated with each of the PV modules of the PV module array and that is tensioned in the open condition and that is slack in the closed condition. | 2020-11-05 |
20200350855 | SOLAR ENERGY COLLECTION PANEL CLEANING SYSTEM - An apparatus, method and system for cleaning a solar panel includes a solar panel, one or more fluid reservoirs, a fluid dispenser at a first side of a solar panel, a mechanism for providing pressurized fluid to the fluid dispenser from the fluid reservoir(s), and a mechanism for dispensing the fluid from the dispenser. The solar panel is periodically cleaned and the motivation for cleaning may be a detected output condition of the panel, a detected weather condition, an expired time condition, detected precipitant accumulation, a manual command, or the like. The fluid(s) may include a gas and/or one or more liquids. A heater may be provided to heat the fluid(s). | 2020-11-05 |
20200350856 | Solar Power Plant Design with Underground Light Room - A new solar power plant design that utilizes a “Light Room” built underground, commercially available mirrors used in CSP and CPV power plants, and also commercially available PV modules. The usage of a Light Room built underground significantly increases sunlight to electricity conversion efficiency by a higher percentage of sunlight directed towards the PV modules, which are kept cool and clean via fans. Construction, operations and maintenance become easier, faster and cheaper. Overall land usage requirement, investment cost per unit installed power and LCOE are significantly reduced. The design allows installation in rural and urban areas, making it possible for applications not feasible with the current state of the art. | 2020-11-05 |
20200350857 | Solar Panel Continuity Bonding Device - A solar panel system includes a rail including a horizontal flange, a rib, and a channel. A clamp assembly includes a first member having a first side having a groove for receiving a portion of the rib and an anchor member for inserting into the channel. The clamp assembly further includes a second member slideably disposed on a second side of the first member and an actuator. When the actuator is actuated, the second member moves in a direction towards a bottom surface of a solar panel such that a top portion of the second member comes into contact with a bottom portion of the solar panel and electrically bonds with the solar panel, and an anchor member of the actuator comes into contact with an inside surface of the channel and electrically bonds with the rail. | 2020-11-05 |
20200350858 | CONSTRUCTION SYSTEM TO CREATE A PHOTOVOLTAIC PANEL CONSTITUTED BY MULTIPLE LAYERS - The present invention relates to a photovoltaic module ( | 2020-11-05 |
20200350859 | SYSTEM FOR USE WITH CONTAMINATED LAND AND AS PART OF A FACILITY - A system for use with contaminated land comprises: a region defined by or within the land, the region having a plurality of locations defined therewithin; at each location, one or more apparatus selected from the group comprising: sensor, well, electrode, cathode, injector and vent; an array of photovoltaic cells for producing DC power; a ground-mounted frame supporting the array, the frame having a boundary substantially contiguous with the region and supporting the photovoltaic cells; a fluid distribution system of conduits supported by the frame; a power system for delivering DC power to each of the locations; and a communication system adapted to provide for remote control of the apparatus. | 2020-11-05 |
20200350860 | LC OSCILLATOR CAPABLE OF TEMPERATURE COMPENSATION - An LC oscillator capable of temperature compensation includes a differential voltage supplier providing a positive differential voltage to a positive node and a negative differential voltage to a negative node and a differential oscillation frequency signal output unit outputting a positive oscillation frequency signal using the positive differential voltage provided to the positive node by the differential voltage supplier and a negative oscillation frequency signal using the negative differential voltage provided to the negative node by the differential voltage supplier. | 2020-11-05 |
20200350861 | OSCILLATOR CIRCUIT ARRANGEMENT - An oscillator circuit arrangement comprises a gain stage and a feedback loop that includes a crystal device. A clock signal monitor circuit is connected to an output of the gain stage and detects a frequency shift in the clock signal or a loss of oscillation. The current through the gain stage is controlled in response to a control signal generated by the clock signal monitor circuit. | 2020-11-05 |
20200350862 | NANOMECHANICAL NETWORKS FOR COMPUTATION - A nanoelectromechanical systems (NEMS) oscillator network and methods for its operation are disclosed. The NEMS oscillator network includes one or more network inputs configured to receive one or more input signals. The NEMS oscillator network also includes a plurality of NEMS oscillators coupled to the one or more network inputs. Each of the plurality of NEMS oscillators includes a NEMS resonator and produces a radio frequency (RF) output signal that oscillates at a particular frequency and a particular phase. The NEMS oscillator network further includes a plurality of connections that interconnect the plurality of NEMS oscillators. The NEMS oscillator network further includes one or more network outputs coupled to the plurality of NEMS oscillators and configured to output one or more output signals. | 2020-11-05 |