摘要
基于三相电压型PWM整流器的d-q模型,详细分析了PWM整流器的双闭环控制原理,提出了d、q轴电流的状态解耦控制策略及提高抗扰动性能的前馈控制策略,将PWM整流器应用于双馈风力发电机系统。通过仿真及实验,表明该变换器能够获得单位功率因数的正弦输入电流和稳定的直流输出电压,能够实现能量的双向流动,具有良好的动、静态特性,能够满足风力发电机系统的要求。
Based on the d-q model of PWM rectifier, the dualclose-loop controller of the rectifier is analyzed, the d-q model based on current state decoupling and grid voltage compensation control strategy is put forward to develop a grid-side converter. Sinusoidal input current with unit power factor, steady output DC voltage and fast dynamic response, as well as hi-direction power flowing ability shown in the experiment show that the converter has excellent steady-state and dynamic performance.
出处
《电气应用》
北大核心
2008年第4期40-44,共5页
Electrotechnical Application
