Patent application number | Description | Published |
20130300491 | Subsea Power Switching Device and Methods of Operating the Same - It is described a switching device comprising a semiconductor switching unit; a contactor electrically coupled in series with the semiconductor switching unit; and a controller being configured for activating an electrically isolating state of the switching device and/or activating an electrically conducting state of the switching device based on a command signal or based on a comparison of a measured value and predetermined activation condition. | 11-14-2013 |
20140217947 | SHORT CIRCUIT SAFE RECTIFIER STAGE FOR A SUBSEA POWER GRID - Short circuit safe rectifier stage for a subsea power grid It is described a rectifier stage ( | 08-07-2014 |
20150008765 | Transferring Electrical Power for Subsea Applications - A method is provided for transferring electrical power. AC power is generated and guided at least partially underwater. The AC power is guided through a cable from a first end of the cable to a second end of the cable. A frequency of the AC power guided through the cable is adjusted in dependence of a length of the cable between the first end and the second end of the cable. | 01-08-2015 |
20150008766 | Method and Apparatus for Transferring Electrical Power for Subsea Applications - Methods for transferring electrical power in the sea include: generating AC power; and guiding, at least partially underwater, the AC power through a cable from a first end of the cable to a second end of the cable. A first reactor is connected near the first end of the cable and a second reactor is connected near the second end of the cable. Inductances of the first reactor and the second reactor are selected to at least partially compensate for reactive power generated in the cable. | 01-08-2015 |
20150009735 | Transferring Electrical Power for Subsea Applications - A method for transferring electrical power in the sea includes generating AC power, guiding, at least partially underwater, the AC power through a cable from a first end of the cable to a second end of the cable, and changing a frequency of the AC power guided through the cable based on a value of power consumption of a load connected to the second end of the cable. | 01-08-2015 |
20150077205 | Subsea Transformer - A subsea transformer that includes a transformer and a transformer tank adapted to accommodate the transformer is provided. The transformer tank has an opening that is sized so as to enable insertion of the transformer into the transformer tank through the opening. A closing plate is adapted to close the opening of the transformer tank. At least one component having a double barrier against ingress of an ambient medium surrounding the subsea transformer when installed subsea is mounted to the closing plate. | 03-19-2015 |
20150122362 | DIRECT ELECTRICAL HEATING ARRANGEMENT COMPRISING A POWER ELECTRONIC CONVERTER - It is described an arrangement for providing an AC current to a load for direct electrical heating, the arrangement comprising a AC-DC-AC converter cell ( | 05-07-2015 |
20150123625 | Synchronous Generator Control, Generator System and Vessel Energy System - An arrangement for controlling a synchronous generator having a stator comprising at least one stator winding and having a rotor with an electromagnet driven by a field current is provided. The rotor is rotatable relative to the stator. The electromagnet is inductively coupled to the at least one stator winding. The arrangement includes a measurement system configured to measure at least one quantity and a controller configured to cause shutting down the field current when the at least one quantity satisfies at least one criterion associated with at least one malfunction. | 05-07-2015 |