About 190 results
https://drivepatents.com/patents/998624 · 5 Sep 2012
A voltage or power conditioning and control device may be used in line with a source of AC line power (11, 12) and a reactive load (13) such as a single-phase induction motor. The device operates to absorb some of the power reflected by the AC load and gen...
https://drivepatents.com/patents/999137 · 22 Aug 2012
An energy storage system and a controlling method thereof are provided. Accordingly, an operation mode of the energy storage system is stably changed.
https://drivepatents.com/patents/999571 · 8 Aug 2012
A power distribution system includes a DC-DC converter which outputs a DC power after converting the DC power outputted from a DC power source to a desired voltage level. In the power distribution system, the DC-DC converter is controlled so as to operate ...
https://drivepatents.com/patents/1000055 · 25 Jul 2012
Provided is a wind power generation apparatus to which general purpose inverters are applicable. An inverter 30 in a constant-voltage mode is used. While a wind power generator 2 is generating electricity, switching circuits 40-1 to 40-3 are turned on and ...
https://drivepatents.com/patents/1000192 · 18 Jul 2012
The device (1) has a power controller arrangement (18) i.e. step-up-chopper arrangement, including two power controllers (6) i.e. step-up-choppers, connected in parallel to each other. Each controller transforms a direct current (DC) voltage (U1) at a DC o...
https://drivepatents.com/patents/1000468 · 11 Jul 2012
A controller arrangement of an electrical power transfer system (1) of a wind turbine is described. The wind turbine has an electrical generator and is connected to an electrical power grid, wherein the power transfer system (1) is arranged to transfer ele...
https://drivepatents.com/patents/1000694 · 4 Jul 2012
A power conversion system for converting electrical power from at least one power source includes a plurality of converter chains which couple the at least one power source to at least one load. At least two of the converter chains comprise an associated d...
https://drivepatents.com/patents/1000681 · 4 Jul 2012
A power conversion system (20) is described. The power conversion system includes a first power converter (42) coupled to an electrical grid (26) at a first point of interconnection (POI) (30), a first processing device (62) coupled to the first power conv...
https://drivepatents.com/patents/1000900 · 27 Jun 2012
The solar module has solar generator (10) that converts incident radiation into electric power, which is connected with intermediate circuit. A solar inverter (12) supplies electric power from the solar generator to a network (14) or consumer. A control un...
https://drivepatents.com/patents/1000865 · 27 Jun 2012
A power system (10) includes a power source (12), a DC bus (16) for receiving DC power (14) from the power source, a line side converter (34) electrically coupled to the DC bus for converting the DC power from the DC bus to AC power with a regulated voltag...