About 190 results
https://drivepatents.com/patents/1003701 · 4 Apr 2012
The box (7) has actuators (13a-13c) i.e. direct current regulators, electrically connected to a regulating device (17). One of the actuators is supplied with electrical input current at a given time, where the input current is converted into a time variabl...
https://drivepatents.com/patents/1004096 · 21 Mar 2012
The installation has photovoltaic panels (2a-2n) connected to a direct current power supply cable (6) by bipolar switches (16a-16n) i.e. normally open relays, in a grouped manner. The switches are closed during normal operation of installation, where a con...
https://drivepatents.com/patents/1005187 · 22 Feb 2012
The method involves intermittent loading of intermediate voltage circuit (C-IN) of an inverter from the source. The time range for a possible loading determines the switches (S1 to S6) of the inverter power stage depending on the switching conditions. A di...
https://drivepatents.com/patents/1005073 · 22 Feb 2012
A grid-connected power conversion circuitry (20) and a power conversion method thereof are disclosed. A DC-DC converter (210) converts a renewable energy into a stable and constant DC power. A DC-AC inverter (220) inverts the DC power into an AC power. The...
https://drivepatents.com/patents/1005028 · 22 Feb 2012
An inverter for supplying a grid, where the inverter comprises a DC link comprising two capacitor units in series and a neutral point (V DC0 ) between the capacitor units, and a first and a second inverter leg. Both inverter legs are connected between the ...
https://drivepatents.com/patents/1005360 · 8 Feb 2012
A power inverter system (200) includes a DC to AC inverter (230) configured to convert DC voltage from a DC power source (210) to AC voltage. A DC link (226) couples the DC power source (210) and the inverter (230). An inverter pre-charger (350) operates t...
Method of Operating a Wind Turbine, Controller Usable for Operating a Wind Turbine, and Wind Turbine
https://drivepatents.com/patents/1006034 · 18 Jan 2012
A method of operating a wind turbine, a controller usable for operating a wind turbine, and a wind turbine are provided. The wind turbine includes a voltage converter being connectable to a power grid via a filter arrangement. The method includes determini...
https://drivepatents.com/patents/1006497 · 4 Jan 2012
The present techniques include methods and systems for operating a wind power system to maintain a lifespan of the rotor side converter. In some embodiments, the current of the rotor side converter may be minimized to reduce the stress and/or junction temp...
https://drivepatents.com/patents/1006486 · 4 Jan 2012
A power generation system (110) includes integrated photovoltaic (PV) panels (112, 114, 116, 118). Each of the integrated PV panel (112, 114, 116, 118) includes photovoltaic cells (42), a junction coupler (44) coupling the photovoltaic cells (42) in series...
https://drivepatents.com/patents/1006436 · 4 Jan 2012
A three-level inverter includes a set of series-connected capacitors connected in parallel to a direct-current power supply; two arms connected in parallel to an output of the direct-current power supply and each having an alternating-current output termin...