Patent ID: 7656052
Filing Date: 2010-02-02
Classification: H02J,H02M,H02P,Y02E

Abstract:
1. A wind turbine comprising: a generator having a stator and a rotor; a turbine assembly including at least one blade for rotating the rotor of the generator; and a power converter including: wherein the first controller uses a dc link voltage demand signal indicative of a desired dc link voltage to control the semiconductor power switching devices of the first active rectifier/inverter to achieve the desired level of dc link voltage that corresponds to the dc link voltage demand signal; and wherein the second controller uses a power demand signal indicative of the level of power to be transferred from the dc link to the supply network through the second active rectifier/inverter, and a voltage demand signal indicative of the voltage to be achieved at the network terminals of the filter to control the semiconductor power switching devices of the second active rectifier/inverter to achieve the desired levels of power and voltage that correspond to the power and voltage demand signals.