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	A scheme of the fast tripping current protection for distribution lines based on the voltage sag mitigation
	Wang Bin ; Pan Zhen-cun ; Dong Xin-zhou
	2010-05-06 ; 2010-05-06
关键词	Practical/ power distribution protection power supply quality relay protection sensitivity analysis/ tripping current protection voltage sag mitigation distribution line protection voltage sag mitigation performance relay protection zone economic analysis/ B8120J Distribution networks B8140 Power system protection B8120L Power supply quality and harmonics
中文摘要	Leading the protection operation characteristic of three-step current protection into CBEMA sensitivity characteristic curve, the evaluation model of voltage sag mitigation performance is proposed for the first time, the voltage sag mitigation ability of existing three-step current protections and the main factors influencing their mitigation performance are analyzed. Analysis results of theory and calculation examples show that to improve the voltage sag mitigation performance the only approach is the extension of instantaneous relay protection zone. On this basis, an improved fast tripping without selectivity protection scheme is proposed. Results from economic analysis and case simulations show that using this approach the transient voltage quality level in distribution system can be evidently improved without cost increase.
语种	中文 ; 中文
出版者	Electr. Power Res. Inst ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11064]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Bin,Pan Zhen-cun,Dong Xin-zhou. A scheme of the fast tripping current protection for distribution lines based on the voltage sag mitigation[J],2010, 2010.
APA	Wang Bin,Pan Zhen-cun,&Dong Xin-zhou.(2010).A scheme of the fast tripping current protection for distribution lines based on the voltage sag mitigation..
MLA	Wang Bin,et al."A scheme of the fast tripping current protection for distribution lines based on the voltage sag mitigation".(2010).

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