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.
出处
《华东电力》
北大核心
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)~~
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
full-power converter
Permanent Magnet Synchronous Generator （PMSG）
Low-voltage ride-through（LVRT）
wind power
