Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection

Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection

Backup protection plays an important role in the safe operation of power grid, and it has important research value in the field of power system relay protection. Firstly, the research status and development opportunities of inverse time limit protection are analyzed, and then the best cooperation be...

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Main Authors: Wang Xiaoyang, Li Zhongqing
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/32/e3sconf_posei2021_02036.pdf
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spelling doaj-a2b3e1a85ccb41988556c910514b5a282021-05-28T12:41:52ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012560203610.1051/e3sconf/202125602036e3sconf_posei2021_02036Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup ProtectionWang XiaoyangLi ZhongqingBackup protection plays an important role in the safe operation of power grid, and it has important research value in the field of power system relay protection. Firstly, the research status and development opportunities of inverse time limit protection are analyzed, and then the best cooperation between inverse time limit protection and distance protection is discussed theoretically. According to the time constraint relationship in the protection range, an objective function satisfying the selectivity and speed is proposed. Secondly, in view of the difficulty in calculating the inverse time characteristic curve, a processing algorithm combining Taylor expansion method and look-up table method is proposed. Finally, the effectiveness and practicability of the method are verified by simulation experiments.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/32/e3sconf_posei2021_02036.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Wang Xiaoyang
Li Zhongqing
spellingShingle Wang Xiaoyang
Li Zhongqing
Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection
E3S Web of Conferences
author_facet Wang Xiaoyang
Li Zhongqing
author_sort Wang Xiaoyang
title Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection
title_short Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection
title_full Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection
title_fullStr Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection
title_full_unstemmed Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection
title_sort research on optimal coordination and algorithms of microprocessor-based inverse time backup protection
publisher EDP Sciences
series E3S Web of Conferences
issn 2267-1242
publishDate 2021-01-01
description Backup protection plays an important role in the safe operation of power grid, and it has important research value in the field of power system relay protection. Firstly, the research status and development opportunities of inverse time limit protection are analyzed, and then the best cooperation between inverse time limit protection and distance protection is discussed theoretically. According to the time constraint relationship in the protection range, an objective function satisfying the selectivity and speed is proposed. Secondly, in view of the difficulty in calculating the inverse time characteristic curve, a processing algorithm combining Taylor expansion method and look-up table method is proposed. Finally, the effectiveness and practicability of the method are verified by simulation experiments.
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/32/e3sconf_posei2021_02036.pdf
work_keys_str_mv AT wangxiaoyang researchonoptimalcoordinationandalgorithmsofmicroprocessorbasedinversetimebackupprotection
AT lizhongqing researchonoptimalcoordinationandalgorithmsofmicroprocessorbasedinversetimebackupprotection
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