Patent ID: 7157804
Filing Date: 2007-01-02
Classification: H02P

Abstract:
1. A power generation system equipped with a rotating machine, which is equipped with a stator, stator winding laid on the stator, rotor, and rotor winding laid on the rotor, control unit that controls the rotating machine, and variable speed wind turbine that drives the rotor; comprising a voltage detector for detecting the voltage of the stator winding, current detector for detecting the current of the stator winding; current detector for detecting the current of the rotor winding, and voltage command value calculator for calculating a command value of the voltage to be applied to the rotor winding; the voltage command value calculator calculating a command value of the voltage to be applied to the rotor winding based on the voltage of the stator winding detected by the voltage detector for detecting the voltage of the stator winding, current of the stator winding detected by the current detector for detecting the current of the stator winding, and current of the rotor winding detected by the current detector for detecting the current of the rotor winding.