NDLI: A novel algorithm to determine minimum break point set for optimum cooperation of directional protection relays in multiloop networks

Content Provider	IEEE Xplore Digital Library
Author	Quanming Yue Feipeng Lu Weiyong Yu Jie Wang
Copyright Year	1986
Abstract	Determining minimum break point set (MBPS) is necessary before setting distance protection relays or zero-sequence protection relays in multiloop extremely high voltage power networks. Determining directional simple loops (DSLs) and relative sequence groups (RSGs) is the prerequisite of traditional algorithms which are used to determine MBPS. In order to reduce the CPU time and complexity of calculating MBPS, a new concept named as protection relay dependency dimension (PRDD) is presented for the first time in this paper. By comparison of PRDD in a multiloop network, the MBPS can be determined, and the process of comparisons will not stop until the MBPS of the multiloop networks is discovered. In the meantime, the RSG could be easily determined by means of judging whether the primary protection relay set of a protection relay is null or not. The new algorithm leaves out those laborious steps, such as determining all of the DSLs and RSGs. Some examples are given to illuminate the novel algorithm presented in the paper to be simple and effective.
Sponsorship	IEEE Power Engineering Society
Starting Page	1114
Ending Page	1119
Page Count	6
File Size	180771
File Format	PDF
ISSN	08858977
Volume Number	21
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protection Protective relaying Intelligent networks DSL Central Processing Unit Voltage Graph theory Artificial neural networks Cities and towns Computer networks setting and calculation Directional protection relay minimum break point set (MBPS) primary protection relay set (PPRS) protection relay dependency dimension (PRDD) relative sequence group (RSG)
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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