The Power Control Of The Pitch-controlled Two-speeds Asynchronous-generator Wind Turbine

Wind power generation are grow so fast today as a new kind of green energy sources .According to the kind of the generator, the wind turbine can be separate into synchronous-generator and asynchronous-generator. This paper introduces different circuit topologies and the corresponding characteristics of the two mode .The performance characteristics and the operation principle of optimum utilization of wind turbine are analyzed, Then the power adjusting modes are discussed in depth. The author analyzed the problems of S64-1250 wind turbines used in Datang Zhuozi wind park and find a solution to the problems. This paper also analyzes the feasibility of the control method in theory.