双馈风力发电机的控制策略分析

Control Strategy of Doubly-fed Wind Power Generator

本文研究了现如今应用较多的变速恒频双馈电机发电系统,介绍了其原理,分析了数学模型,研究了控制策略;采用电网电压定向的矢量控制策略对电网侧PWM变换器进行控制;采用定子电压定向矢量控制策略,对转子侧变换器进行控制,实现了双馈电机有功、无功功率的解耦控制。最后搭建仿真模型,仿真结果证明了理论分析的正确性,为实践研究提供理论依据。

This article does some research on the variable speed constant frequency doubly-fed machine power system, introduces the principle, analyzes the mathematical model and control strategy, and uses the grid voltage oriented vector control strategy on the grid side PWM converter. Stator voltage orients vector control strategies to control the rotor-side converter, thus achieves the doubly-fed machine active and reactive power decoupling control, and builds a simulation model. Simulation results prove the correctness of the theoretical analysis, which provides a theoretical basis for practical research.