基于永磁同步风力发电机并网系统的低电压穿越方法  

Study on LVRT Control Strategy of Wind Power PMSG System

作　　者：屈克庆[1] 丁佐进[1] 邢月红[1] 

机构地区：[1]上海电力学院,上海200090

出　　处：《华东电力》2011年第12期2033-2036,共4页East China Electric Power

基　　金：上海市教育委员会科研创新项目资助(10YZ161);上海市教育委员会重点学科建设项目资助(J51301)~~

摘　　要：针对直驱式永磁同步风力发电机系统,提出了一种基于全功率变换器控制的低电压穿越实现方法。分析低电压穿越的特性及控制要求,通过抑制直流电压升高,提出了在功率平衡条件下,实现低电压穿越的控制策略。仿真结果表明能够实现低电压穿越,保持功率的平衡稳定,跟踪控制响应迅速。A Low-voltage ride-through （LVRT） control strategy is presented for direct-drive Permanent Magnet Synchronous Generator （PMSG） wind-power system with full-power converter. The requirements on LVRT are studied for wind-power to remain connected to grid. To prevent the rise of DC link voltage during LVRT, on the condition of power balance between wind power side and grid side, a LVRT realization scheme is analyzed. Simulation results verify the effectiveness of the proposed method, in which the power system keeps on balance and steady and a prompt response.

关 键 词：全功率变换器 永磁同步发电机 低电压穿越 风力发电 

分 类 号：TM461[电气工程—电器]