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	Evaluations of sag mitigation capability to distribution line current protection
	Wang Bin ; Pan Zhen-cun ; Xu Wen-yuan ; Dong Xin-zhou
	2010-05-06 ; 2010-05-06
关键词	Theoretical or Mathematical/ power distribution faults power distribution lines power distribution protection power supply quality relay protection/ voltage sag mitigation distribution line current protection relay protection power system faults distribution system Computer Business Equipment Manufacturing Association CBEMA curve sensitive equipment/ B8120J Distribution networks B8140 Power system protection B8120L Power supply quality and harmonics
中文摘要	Main duties of relay protection are correctly and quickly judging and clearing system faults, which greatly derive voltage sags in a distribution system. Whereas, it is less reported for the evaluation and application of sag mitigation capabilities to relay protection. By introducing the protection operation characteristic into the CBEMA (Computer Business Equipment Manufacturing Association) curve, the secure work region of sensitive equipment under voltage sags and the sag mitigation capabilities provided by current protection under system faults are presented and modeled. And then the maximum sag protection capabilities of current protection and the size of the secure work region can be achieved. Theoretical analysis and simulations prove that sag mitigation with relay protection is valid. Also, it is concluded that the only effective improvement is the extension of the instantaneous relay protection zone.
语种	中文 ; 中文
出版者	State Power Corp. of China ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/10614]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Bin,Pan Zhen-cun,Xu Wen-yuan,et al. Evaluations of sag mitigation capability to distribution line current protection[J],2010, 2010.
APA	Wang Bin,Pan Zhen-cun,Xu Wen-yuan,&Dong Xin-zhou.(2010).Evaluations of sag mitigation capability to distribution line current protection..
MLA	Wang Bin,et al."Evaluations of sag mitigation capability to distribution line current protection".(2010).

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