大规模风电接入的继电保护问题综述[J].pdf

第 36 卷第 7 期电网技术 Vol. 36 No. 7
2012 年 7 月 Power System Technology Jul. 2012
文章编号:1000-3673(2012)07-0195-07 中图分类号:TM 771 文献标志码:A 学科代码:470·4054
大规模风电接入的继电保护问题综述
焦在强
(中国水电建设集团新能源开发有限责任公司,北京市海淀区 100048)

A Survey on Relay Protection for Grid-Connection of Large-Scale Wind Farm
JIAO Zaiqiang
(Sinohydro Renewable Energy Development Co., Ltd., Haidian District, Beijing 100048, China)
ABSTRACT: A survey on relay protection for grid-connected 风电场
large-scale wind farm home and abroad is given. Firstly, the
0 引言
amplitudes of short-circuit currents of various types of wind
power generation sets and their attenuation characteristics as 继电保护是电网安全稳定运行的第一道防线,
well as the factors impacting short-circuit current of wind farm 能够在故障发生时快速可靠地识别并有效地隔离
are analyzed; secondly, the fault characteristics of 故障,对遏制系统运行状况的进一步恶化,保障电
current-collecting circuit of wind farm and corresponding
能高效稳定的传输和利用都具有重要的意义。近年
protection strategy are discussed; and then based on the
adaptability of protective relayings of high-voltage power 来,随着能源危机和环境问题的日益突出,风电等
transmission system to the grid-connection of wind farm the 可再生能源越来越受到社会的关注,其大规模应
performances of zero-sequence protection, autoreclosure and 用,必然带来集中接入、远距离传输以及风电场内
the third zone of distance protection and corresponding 部集电线路网络化等问题,从而改变电力系统的运
countermeasures are analyzed; finally, it is suggested that the
行特征。
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