Patent application number | Description | Published |
20120185107 | POWER DISTRIBUTION SYSTEM - A power distribution system includes power sources and an outlet which is supplied with electric power from the power sources and displays information on which power source is currently supplying the electric power. Further, the power distribution system includes a controller which changes the power sources for supplying the electric power to the outlet and controls the display on the outlet. | 07-19-2012 |
20120203387 | POWER CONTROL SYSTEM AND ELECTRIC DEVICE - A power control system controls electric devices so as to consume a power generated by a self-generated power facility using a natural energy, which is provided with a surplus power detection unit that detects the surplus portion of power generated by the self-generated power facility, and a device control unit that controls the operation of a plurality of electric devices. When the surplus power detection unit detects the surplus power, the device control unit controls one or more of a plurality of electric devices to perform predetermined operations so as to consume the surplus power. | 08-09-2012 |
20120205975 | SYSTEM FOR CONTROLLING ELECTRIC POWER SUPPLY TO DEVICES - A system for controlling an electric power supply to devices is provided. The system includes a plurality of power supply sources, devices operated by an electric power, and a control part that determines the power supply source to be used for supplying the electric power to the devices. Further, the control part controls the amount of electric power to be supplied to the devices by the determined power supply source. | 08-16-2012 |
20120212050 | ELECTRICITY SUPPLY MANAGEMENT DEVICE - An electricity supply management device includes a solar cell; a commercial Alternating Current (AC) power source; and a storage battery, in which the storage battery is charged by an electric power from the solar cell, and a power from at least one of the solar cell, the commercial AC power source and the storage battery is supplied to one or more load devices. A power consumption level by the load devices is controlled based on comparison result between a power generation amount by the solar cell and a power consumption amount by the load devices, and a charge level of the storage battery indicative of a ratio of charging to capacity of the storage battery. | 08-23-2012 |
20120235625 | ENERGY STORAGE SYSTEM - In an energy storage system, power from at least one of a solar cell, a commercial AC power source, and a storage battery is supplied to load devices. In the daytime, under the condition that an amount of power generated by the solar cell is less than an amount of power consumed by the load device, the discharge from the storage battery to the load device is permitted or prohibited if the charge level of the storage battery is higher or is not higher than the reference charge level. The discharge from the storage battery which makes the charge level of the storage battery lower than the reference level is permitted at night. | 09-20-2012 |
20120242147 | DC POWER DISTRIBUTION SYSTEM - A DC power distribution system for supplying a DC power into a building, includes one or more power feeding devices which supply a DC power, a power feeding line for supplying the DC power supplied from the power feeding devices to various sites in the building and sockets located at the various sites and connected to the power feeding line. The DC power distribution system further includes a portable power feeding device which supplies a generated or stored DC power thereof to the power feeding line via a plug which is removably connected to one of the sockets. | 09-27-2012 |
20120274133 | ELECTRIC POWER SUPPLY SYSTEM - Disclosed is an electric power supply system which has: a common power source which stores and supplies a power via a local power grid; and a distributed power source which supplies a power to buildings and a surplus to the common power source. The electric power supply system further includes a first power meter measuring the amount of power supplied from a commercial power source, a second power meter measuring the amount of power received from and supplied to the common power source via the local power grid, and a distribution control device which distributes a power from the common power source to the area based on the amounts of power as measured by the first power meter and the second power meter. | 11-01-2012 |
20130020871 | APPLIANCE CONTROL SYSTEM - The appliance control system includes electrical appliances and an appliance control device. The appliance control device includes a control unit configured to, upon receiving an energy conservation instruction indicative of a total reduction amount, send a control signal including common control order indicative of an individual reduction amount of the power consumption of the electrical appliance to at least one of the electrical appliances based on the total reduction amount. Each electrical appliance includes a functional unit having plural operation states with different power consumption, a control instruction storage unit storing plural control instructions for changing the operation state, an individual storage unit storing individual control information indicative of a correspondence relation between the individual reduction amount and the control instruction, and an operation control unit. Upon receiving the control signal, the operation control unit selects the control instruction associated with the individual reduction amount indicated by the common control order included in the received control signal with reference to the individual control information, and provides the selected control instruction to the functional unit. The functional unit performs an energy conservation control process of changing the operation state in accordance with the received control instruction. | 01-24-2013 |
20130049695 | ELECTRIC POWER CONTROL APPARATUS AND GRID CONNECTION SYSTEM HAVING SAME - An electric power control apparatus enables a surplus electric power from a distributed power source to be stored in a storage battery in a consumer unit provided with a distributed power source and a storage battery. The electric power control apparatus is characterized in being provided with a compensation calculating unit which calculates the compensation of electric power by using a unit price of electricity for sale when charging the storage battery and a unit price of electricity for purchase when discharging from the storage battery. | 02-28-2013 |
20130158684 | APPLIANCE CONTROL SYSTEM - The appliance control system includes a control device, a human detection sensor, and a manual operation switch. The control device includes a selecting unit configured to select a mode of an appliance driving unit controlling an appliance, from an operation mode in which the appliance driving unit operates the appliance, a limited mode in which the appliance driving unit limits an operation of the appliance, and a rest mode in which the appliance driving unit terminates the operation of the appliance. The selecting unit changes the appliance driving unit to the operation mode when the manipulation switch is turned on. The selecting unit changes the appliance driving unit to the rest mode when the manipulation switch is turned off. The selecting unit changes the appliance driving unit to the waiting mode when the human detection sensor does not detect a human within waiting time while the appliance driving unit is in the operation mode. While the appliance driving unit is in the waiting mode, the selecting unit changes the appliance driving unit to the operation mode when the human detection sensor detects a human within waiting time, and changes the appliance driving unit to the rest mode when the human detection sensor does not detect a human within waiting time. While the appliance driving unit is in the rest mode, the selecting unit does not change the appliance driving unit to the operation mode even if the human detection sensor detects a human. | 06-20-2013 |
20130229059 | ELECTRIC POWER CONTROL DEVICE AND ELECTRIC POWER CONTROL SYSTEM USING SAME - A controller installed at each consumer side comprises: a power generation amount acquisition unit acquiring the amount of electricity that has been generated in a solar cell; a power selling amount acquisition unit acquiring the amount of electricity for sale that has been allowed to flow into an electric power system by reverse power flow, among the electricity generated in the solar cell; and a power selling suppression control unit configured to set a threshold value for the amount of the electricity for sale, as proportional to the amount of the generated electricity acquired by the power generation amount acquisition unit, and configured to suppress the reverse power flow into the electric power system so that the amount of the electricity for sale is set to the threshold value or less. | 09-05-2013 |
20130270911 | POWER CONTROLLER - Residential system includes photovoltaic power system including solar battery, and electrical storage device including battery. Electric load of residential system is selectively supplied with energy from power supply system, power generator and electrical storage device. Power generator allows energy to flow back to power supply system. Energy surplus judgment part calculates difference between generating energy of power generator and demand power for electric load (excess generating energy). Overall operation controller applies stored energy in electrical storage device to demand energy for electric load when excess generating energy is produced, and charges electrical storage device without applying generating energy of power generator to demand energy when excess generating energy is not produced. | 10-17-2013 |
20130318462 | ENERGY MANAGEMENT ASSISTANCE DEVICE, ENERGY MANAGEMENT ASSISTANCE SYSTEM, AND PROGRAM - An object is to allow intuitively understand whether display information displayed on a display device indicates favorable state or unfavorable state for a user. An acquisition unit | 11-28-2013 |
20140046496 | ENERGY MANAGEMENT APPARATUS AND ENERGY MANAGEMENT SYSTEM - An energy management apparatus includes: algorithm storage unit configured to store at least one energy-saving control algorithm; controller configured to control an operation of controlled device by executing the algorithm and; data storage unit configured to store reduction information corresponding to the algorithm, the reduction information used to figure out a reduction in energy consumption due to the execution of the algorithm; estimation unit configured to estimate the reduction in the energy consumption due to the execution of the algorithm on the basis of the reduction information, when controller controls the operation of controlled device by executing the algorithm; and network communication unit configured to output the estimation result. | 02-13-2014 |
20140052310 | POWER SUPPLY SYSTEM - A controller executes local generation and local consumption pathways of: supplying power from a solar cell to an appliance, and charging a storage cell with power that remains after subtracting power consumed by the appliance from the solar cell power. In the absence of excess power, the storage cell and solar cell supply power. Power supply from a commercial electrical grid covers a power shortage that remains after subtracting solar cell power and storage cell power from the power consumed by the appliance. The controller also executes a second excess power selling mode pathway wherein excess power flows into the commercial electrical grid, and an assist mode wherein all solar cell power flows into the commercial electrical grid, and storage cell power flows to the appliance. | 02-20-2014 |
20140094985 | POWER SUPPLY SYSTEM - A demand measurement unit measures load demand power and a power generation measurement unit measures solar cell output power. A threshold storage unit stores a discharge control threshold for determining whether to discharge remaining storage cell power. When demand power exceeds generated power, a command unit controls storage cell discharge by comparing remaining storage cell power with the discharge control threshold and transmits a control command to a power conditioner. If the remaining storage cell power exceeds the discharge control threshold, then the command unit commands storage cell discharge. A threshold setting unit sets the discharge control threshold, and updates the discharge control threshold when that value changes. | 04-03-2014 |
20140136010 | ENERGY MANAGEMENT DEVICE, ENERGY MANAGEMENT SYSTEM, AND PROGRAM - An electric power acquisition section acquires a power demand of a load. An assist control section determines that an assist condition is satisfied when the power demand exceeds a threshold value within a time slot for permitting electric power to be supplied to the load. When determining that the assist condition is satisfied, the assist control section presents a selection prompt to inquire whether or not to activate an assist operation for supplying the electric power from a power storage device, on an operation display device through a notification control section. If there is a response for requesting activation of the assist operation from the operation display device in response to the selection prompt, the assist operation is started. The assist condition is set in a storage unit by a condition setting section. | 05-15-2014 |
20140222237 | LOAD CONTROLLER, PROGRAM, LOAD CONTROL SYSTEM - A load control apparatus receives information regarding the consumed electric power in load devices and the generated electric power by a power generator. The apparatus includes a control unit, which controls a device based on the received information. A determination unit determines whether the device can execute a predetermined process with surplus electric power in target period from the present until a predetermined period of time elapses. An execution unit controls the device such that when it is determined that the abovementioned process can be executed, a control signal is provided to cause the process to start. | 08-07-2014 |