Access Restriction

Author Quanming Yue ♦ Feipeng Lu ♦ Weiyong Yu ♦ Jie Wang
Sponsorship IEEE Power Engineering Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1986
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
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)
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.
Description Author affiliation :: Dept. of Electr. Eng., Shanghai Jiaotong Univ., China
ISSN 08858977
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2006-07-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 21
Issue Number 3
Size (in Bytes) 176.53 kB
Page Count 6
Starting Page 1114
Ending Page 1119

Source: IEEE Xplore Digital Library