A Comprehensive Evaluation Method for Relay Protection Adapted to New Electric Power System

被引：0
|
作者：
Zhang L. [1 ]
Guo P. [1 ]
Li Z. [1 ]
Zhang H. [1 ]
Yan Z. [1 ]
Kang Y. [1 ]
机构：
[1] State Key Laboratory of Power Grid Safety and Energy Conservation, China Electric Power Research Institute, Haidian District, Beijing
来源：
Dianwang Jishu/Power System Technology | 2024年 / 48卷 / 04期
关键词：
comprehensive evaluation; configuration theory; fit goodness; Relay protection; support vector machine;
D O I：
10.13335/j.1000-3673.pst.2022.2379
中图分类号：
学科分类号：
摘要：
The safe operation of China's new electric power system highly relies on the relay protection device as the first line of defense, and it is of great significance to comprehensively evaluate the operation level of relay protection. Because of the complicated structure of relay protection, numerous factors affecting their operation status, and the technical difficulties in determining weights of evaluation indexes, this paper proposed a comprehensive evaluation method based on fully referring to the existing evaluation indexes. This paper proposes five evaluation elements: equipment advancement, operating reliability, maintainability, assurance, and professional management normalization. The relationship between different elements is grasped based on configuration theory, and the comprehensive evaluation system of relay protection is obtained by eliminating redundant indexes by support vector machine. Based on the protection operation evaluation system's subjective and objective weighting results, a method for determining the combination weights based on the fit goodness of the sample evaluation result sequence to the normal distribution is proposed. The construction of the evaluation index system of relay protection operation and the scientific calculation of index weights provide an important reference basis for the operation and management of relay protection. © 2024 Power System Technology Press. All rights reserved.
引用
收藏
页码：1633 / 1644
页数：11
相关论文
共 34 条
  • [1] KANG Chongqing, DU Ershun, GUO Hongye, Primary exploration of six essential factors in new power system[J], Power System Technology, 47, 5, pp. 1741-1750, (2023)
  • [2] CHEN Guoping, WANG Delin, QIU Yutao, Challenges and development prospects of relay protection technology[J], Automation of Electric Power Systems, 41, 16, pp. 1-11, (2017)
  • [3] (2011)
  • [4] SHEN Xiaofan, SHU Zhihuai, LIU Yu, Statistics and analysis on operation situation of protective relayings of state grid corporation of China in 2008[J], Power System Technology, 34, 3, pp. 173-177, (2010)
  • [5] SHEN Xiaofan, SHU Zhihuai, LIU Yu, Statistics and analysis on operation situation of protective relayings of State Grid Corporation of China in 2009[J], Power System Technology, 35, 2, pp. 189-193, (2011)
  • [6] ZHANG Lie, LU Pengfei, ZHANG Hanfang, Analysis on protective relaying and its operation conditions of SGCC AC systems of 220kV and above in 2018[J], Power System Technology, 44, 1, pp. 217-222, (2020)
  • [7] ZHANG Lie, WANG Delin, LIU Yadong, Analysis on protective relaying and its operation conditions in 220 kV and above AC system of SGCC in past ten years[J], Power System Technology, 41, 5, pp. 1654-1659, (2017)
  • [8] ZHANG Lie, LV Pengfei, SHEN Hua, Analysis on protective relaying and its operation conditions of SGCC in 220 kV and above voltage AC systems in 2013[J], Power System Technology, 39, 4, pp. 1153-1159, (2015)
  • [9] LIU Yimin, ZHANG Jiahuan, YANG Xinping, Construction method of evaluation index system of relay protection based on macroscopic and microcosmic view[J], Power System Technology, 44, 8, pp. 3090-3096, (2020)
  • [10] (2015)
1234