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Research on the feasibility of loop-closing operation in 10 kV distribution system

Published: 31 July 2024 Publication History

Abstract

This paper proposed a methodology for evaluating whether loop-closing operation of the 10 kV distribution system meets the safety and reliability standards, in the area where the distribution system work in radial structure. This paper analyzed the influence of loop-closing operation, and concluded that loop-closing operation would generate a circular current, which could result in the relays operating incorrectly and the feeders overloading. Both of these results are corelated with the safety and reliability of the distribution system. In order to prevent such a scenario, this paper proposed a methodology for calculating the circular current and analyzing it to determine whether the loop-closing operation is feasible.

References

[1]
WANG Hui, XU Qiang and WANG Weikang. 2022. Research on the Influence of Distribution Network Combined Ring Regulation on Relay Protection Electric Swichgear 60 pp 13-6.
[2]
LIU Song and HUANG Chun. 2019, (06) Research on Comprehensive Control Strategy of Loop Closing Current in 10 kV Distribution Network Control and Information Technology pp 2428-35.
[3]
SHI Zhongwen, WEN Hui, YANG Lisen and YANG Chunyang, LI Yong. 2023, (15) Research on Calculation Method of Closed Loop Current in 10 kV Distribution Network [J]. Electric Engineering pp 93-96.
[4]
C. S. Cheng and D. Shirmohammadi May 1995 A three-phase power flow method for real-time distribution system analysis IEEE Transactions on Power Systems vol 10 no 2 pp 671-679.
[5]
A. Garces Jan. 2016. A Linear Three-Phase Load Flow for Power Distribution Systems IEEE Transactions on Power Systems vol 31 no 1 pp 827-828.
[6]
GE Shaoyun and LI Xiaoming. 2007, (06) Study on Surge Current Due to Closing Loop in Distribution Network Based on Thevenin's Equivalent Proceedings of the CSU-EPSA pp 124-127.
[7]
LIU Jian, SUN Quan, ZHANG Xiaoqing and ZHANG Zhihua. 2014. Analysis on and Criteria for Loop Closing Operation for Distribution Grids Automation of Electric Power Systems 38(11) pp 130-135.

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    PEAI '24: Proceedings of the 2024 International Conference on Power Electronics and Artificial Intelligence
    January 2024
    969 pages
    ISBN:9798400716638
    DOI:10.1145/3674225
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    Published: 31 July 2024

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