电网故障下双馈感应式风力发电系统的无功功率控制策略_梁亮.pdfVIP

第 32 卷 第 11 期 电 网 技 术 Vol. 32 No. 11 2008 年 6 月 Power System Technology Jun. 2008 文章编号：1000-3673 （2008 ）11-0070-04 中图分类号：TM315 文献标识码：A 学科代码：470·4047 电网故障下双馈感应式风力发电系统的 无功功率控制策略 梁 亮，李建林，许洪华 （中国科学院 电工研究所，北京市 海淀区 100080 ） Reactive Power Control Strategy for Doubly-Fed Induction Wind Power Generation System Under Fault in Power Network LIANG Liang，LI Jian-lin，XU Hong-hua （Institute of Electrical Engineering，Chinese Academy of Sciences，Haidian District ，Beijing 100080，China ） ABSTRACT: Doubly-fed induction generator (DFIG) is 功补偿的控制策略进行了仿真分析，仿真结果表明，故障清 progressively becoming the mainstream of wind power 除后通过双馈感应式风力发电机的网侧变换器对电网进行 generation, commonly the reactive power control strategy using 无功支撑可以明显增强系统恢复稳定运行的能力。 unity power factor is applied to DFIG units. The power system 关键词：风力发电；变速恒频；双馈感应式发电机；电压跌 fault makes terminal voltage of DFIG descended, so the 落；风电场 traditional unity power factor operating mode may not maintain the stable operation of power system this moment and it is 0 引言 needed to provide reactive power by wind farm to help power system to recover stable operation. In this paper, taking a 9MW 随着我国风力发电市场的不断扩大，风电场数 wind farm consisting of DFIG units for example, the simulation 量以及风电场容量快速增加，风力发电在电力系统 of the two situations, i.e., keeping the unity power factor 中所占份额逐年快速增长，对电网的影响越来越 operating mode and the control strategy using grid side 大，因此，世界各国纷纷制定了针对大型风力发电 converter to implement reactive power compensation, is 机的并网运行标准，其中影响最大的是欧洲的 respectively