电力系统保护与控制Issue(14)：67-71,5.
基于Crowbar保护的双馈风力发电机低电压控制策略研究
Analysis of doubly-fed wind power generator low voltage control strategy based on Crowbar protection
摘要
Abstract
Aiming at the problems of the DC over-voltage and the dynamic reactive power compensation, which caused by the doubly-fed wind generator switch Crowbar circuit when the grid voltage dips, and basing on the feedback linearization theory, the nonlinear control strategy on grid-side converter is proposed. This paper adopts a coordinated control STATCOM to compensate the dynamic reactive power of the grid. Simulation result shows that, the grid-side nonlinear controller can well restrain the DC over-voltage during the grid voltage dip, and meet the requirements of system reactive power by introducing a STATCOM compensation device. The result also confirms the correctness of the control strategy, which improves the ability of low voltage ride through (LVRT) of the system. This work is supported by National Natural Science Foundation of China (No. 51267001).关键词
双馈风力发电机/低电压穿越/电压跌落/网侧变换器/静止无功补偿Key words
doubly-fed induction generator (DFIG)/low voltage ride through (LVRT)/voltage dip/grid-side converter/STATCOM分类
信息技术与安全科学引用本文复制引用
李啸骢,黄维,黄承喜,鹿建成,查中魁,席云..基于Crowbar保护的双馈风力发电机低电压控制策略研究[J].电力系统保护与控制,2014,(14):67-71,5.基金项目
国家自然科学基金资助项目(51267001)；广西科学基金资助项目(桂科自0728027)；南宁市市校科技合作专项项目(200801029D)；北海市市校科技合作专项项目(北科合200801027) （51267001）
