Patent ID: 8129851
Filing Date: 2012-03-06
Classification: F03D,F05B,H02J,H02P,Y02E

Abstract:
1. A wind power generation system in which a stator of an AC-excited power generator connected to a power system is connected with an AC part of a system-side converter, an AC part of a generator-side converter is connected with a rotor of the AC-excited power generator, a DC part of the system-side converter is connected with a DC part of the generator-side converter, and electric power is generated by rotating the rotor of the AC-excited power generator by a wind turbine which is connected to the rotor, wherein the wind power generation system comprises: an overcurrent consuming unit is connected to the DC part of the system-side converter and the generator-side converter in parallel with each other; the overcurrent consuming unit includes a semiconductor element and a resistor; and the resistor consumes energy of an overcurrent at the DC part thereby to suppress voltage rise at the DC part.