远程备用智能保护一体化中心架构通信系统连通可靠性研究

黄景光; 于楠; 林湘宁; 吴巍; 陈波

引用本文:	黄景光,于楠,林湘宁,等.远程备用智能保护一体化中心架构通信系统连通可靠性研究[J].电力系统保护与控制,2019,47(24):65-75.
	HUANG Jingguang,YU Nan,LIN Xiangning,et al.Study on connectivity reliability analysis of communication system for remote duplicate configuration smart protection center[J].Power System Protection and Control,2019,47(24):65-75

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远程备用智能保护一体化中心架构通信系统连通可靠性研究
黄景光¹,于楠¹,林湘宁²,吴巍¹,陈波¹
(1.三峡大学电气与新能源学院，湖北宜昌 443002; 2.强电磁工程与新技术国家重点实验室(华中科技大学)，湖北武汉 430074)

摘要:

针对双重化智能变电站站域保护在检修、故障退出、灾变恢复等多种场景时可靠性不充分的问题，提出远程备用智能保护一体化中心(Remote Duplicate Configuration Smart Protection Center, RDCSPC)的继电保护新架构。因其建立在异地，必须考虑其通信系统的可靠性。采用Markov状态空间法对RDCSPC架构通信系统各子模块进行建模，确定模型各状态之间失效率、修复率逻辑关系，得出各子模块及RDCSPC架构通信系统两种组网下的可靠性指标表达式。通过算例分析计算得到可靠性指标具体数值。算例结果验证了RDCSPC架构通信系统在两种组网下具有较高的可靠性。在此基础上进一步讨论了一个RDCSPC所辖几座变电站更合理。

关键词: 站域保护可靠性 Markov状态空间法智能变电站通信系统

DOI：10.19783/j.cnki.pspc.190062

分类号:

基金项目:国家自然科学基金项目资助(51477090);国家电网公司科技项目资助“适应变电站-网架形态演变趋势的新架构保护关键技术研究与开发”

Study on connectivity reliability analysis of communication system for remote duplicate configuration smart protection center

HUANG Jingguang¹,YU Nan¹,LIN Xiangning²,WU Wei¹,CHEN Bo¹

(1. School of Electric Engineering & Renewable Energy, China Three Gorges University, Yichang 443002, China;2. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

Abstract:

In view of the problem of insufficient reliability of redundant intelligent substation area protection during maintenance, failure exit, disaster recovery and other scenarios, a new relay protection architecture of Remote Duplicate Configuration Smart Protection Center (RDCSPC) is proposed. Because it is built in different places, the reliability of its communication system must be considered. In this paper, Markov state space method is used to model each sub-module of RDCSPC communication system. The logical relationship between failure rate and repair rate is determined. The availability expressions of each sub-module and RDCSPC communication system under two networking conditions are obtained. The specific values of reliability index are obtained through the analysis and calculation of an example. The example results show that the communication system based on RDCSPC has high reliability under two kinds of networking. On this basis, the rationality of several substations under the jurisdiction of one RDCSPC is further discussed. This work is supported by National Natural Science Foundation of China (No. 51477090) and Science and Technology Project of State Grid Corporation of China “Key Technique Research and Development of New Architecture Protection of Adapting Substation-Network Form Evaluation Tendency”.

Key words: substation area protection reliability Markov state space method intelligent substation communication system

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