转子感应电势定向的双馈电机风力发电系统研究

Research on Rotor EMF-Oriented Doubly-Fed Wind Power Generation System

考虑风电系统的工况特点,给出了一种双馈电机的无速度传感器的控制方法,在控制中只需检测转子侧电流电压,转子感应电势定向中应用了线性相位有限长脉冲响应数字滤波器(FIR),在同步速附近实施了不同的控制方法,解决了这种无速度传感器控制方法在工程中的应用问题。仿真和实验验证了该方法的正确性和实用性。

A control strategy of the doubly-fed induction generator using rotor EMF-oriented position senseless scheme is proposed. Compared to the other position senseless schemes, the proposed control method uses only the rotor voltage and current as the feedback signals, which substantially reduces the costs and enhances the reliability of the position senseless control of the generator. The FIR is used in the rotor EMF orientation. The good performance of the system obtained from Simulation and experiment demonstrates the correctness and availability of the scheme.