最佳重合闸方案的研究

周德才; 张保会; 赵慧梅

引用本文:	周德才,张保会,赵慧梅.最佳重合闸方案的研究[J].电力系统保护与控制,2005,33(1):28-33.
	ZHOU De-cai,ZHANG Bao-hui,ZHAO Hui-mei.Study of a scheme of optimal auto-reclosing[J].Power System Protection and Control,2005,33(1):28-33

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最佳重合闸方案的研究
周德才,张保会,赵慧梅
西安交通大学电气工程学院,陕西西安 710049

摘要:

提出了最佳重合闸方案。该方案在单相接地短路时跳开单相,两相接地短路时跳开两相,两相不接地短路时只跳开一故障相;瞬时故障时在最佳重合时刻分相重合,永久故障时闭锁重合闸。计算结果表明,该重合闸方案能够避免重合于永久故障时对系统的冲击,增强故障持续期间系统之间的联系,提高电力系统稳定性;并且减小功角摇摆幅度30%和发电机轴系扭振50%以上,也降低了操作过电压。

关键词: 最佳重合闸电力系统稳定轴系扭振过电压

DOI：10.7667/j.issn.1674-3415.2005.01.006

分类号:

基金项目:博士点基金资助项目(2002068q027) ,许继奖教金资助项目

Study of a scheme of optimal auto-reclosing

ZHOU De-cai^1,2,3,4, ZHANG Bao-hui, ZHAO Hui-mei

1.School of Electrical Engineering;2.Xi′an Jiaotong University;3.Xi′an 710049;4.China

Abstract:

A scheme of optimal auto-reclosing is proposed in this paper. Single phase is tripped for single-phase-earth-fault, two phases are tripped for two-phase-earth-fault and either fault phase is tripped for two-phase unearth fault in the scheme. Further more, the switches reclose at optimal reclosing time by phase for instantaneous fault and shut down reclosure for permanent fault. The calculation result shows that the reclosing mode can avoid severe impact to the system caused by reclosing on permanent fault, ...

Key words: optimal auto-reclosing stability of power system shaft torsional oscillation over-voltage

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