Variable speed wind turbine

Details Variable speed wind turbine Variable speed wind turbine

H - Electricity

02

P

H02P 9/00 (2006.01) F03D 7/00 (2006.01) F03D 7/02 (2006.01) F03D 7/04 (2006.01) F03D 9/00 (2006.01) H02J 3/18 (2006.01) H02J 3/40 (2006.01) H02P 9/04 (2006.01) H02P 21/00 (2006.01)

Patent

CA 2100672

A variable speed wind turbine (10) is disclosed comprising a turbine rotor (12) that drives an AC induction generator (16 and 18), a power converter (20-34) that converts the generator output to fixed- frequency AC power, a generator controller (38 and 40), and an inverter controller (50 and 52). The generator controller (38 and 40) uses field orientation to regulate either stator cur- rents or voltages to control the torque reacted by the generator. The inverter controller (50 and 52) regulates the output currents to supply multi-phase AC power having leading or lagging currents at an angle specified by a power factor control signal.

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