NDLI: Novel directional comparison protection for distribution lines

Content Provider	Springer Nature Link
Author	Dong, XinZhou Yuan, DingDing Lu, Qiang Bo, ZhiQian
Copyright Year	2008
Abstract	For quickly clearing up a fault of distribution lines, which concerned with complex structure and operating modes, a directional comparison protection is necessary. The paper evaluated the traditional directional relay through modeling a typical distribution system and presented a novel negative sequence directional relay and a new directional comparison protection scheme specially designed for distribution systems. In the relay and the protection scheme, a particular negative sequence component has been constructed to solve the problem that there is no negative sequence component in a symmetrical fault case so that they could operate correctly in both asymmetrical fault and symmetrical fault. Extensive EMTP simulation studies proved that the protection schemes are able to provide fast and reliable responses for all fault conditions. In particular, they are able to give correct responses adapting to the change of system operation conditions, including the changing of system configuration, power flow direction, and source and tapped-offload conditions.
Starting Page	353
Ending Page	361
Page Count	9
File Format	PDF
ISSN	10069321
Journal	Science in China Series E: Technological Sciences
Volume Number	51
Issue Number	4
e-ISSN	1862281X
Language	English
Publisher	SP Science in China Press
Publisher Date	2008-03-26
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	distribution lines negative sequence directional relay directional comparison protection Engineering
Content Type	Text
Resource Type	Article
Subject	Engineering Materials Science

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