| 引用本文: | 叶远波,谢民,王嘉琦,徐岩,徐殿洋.基于Markov模型与GO法的智能变电站继电保护系统实时可靠性分析[J].电力系统保护与控制,2019,47(2):47-55.[点击复制] |
| YE Yuanbo,XIE Min,WANG Jiaqi,XU Yan,XU Dianyang.Real time reliability analysis of relay protection system in intelligent substation based on Markov model and GO method[J].Power System Protection and Control,2019,47(2):47-55[点击复制] |
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| 摘要: |
| 智能变电站的全站信息数字化为继电保护信息的实时采集提供了基础，但是智能变电站继电保护系统可靠性的分析还停留在滞后于实时运行状态的估算阶段。以智能变电站采集实时报文数据作为继电保护系统在线监测数据，研究了继电保护装置的实时可靠性。首先从智能变电站在线监测出发，对智能变电站报文进行分类，确定继电保护装置的状态划分。然后通过Markov模型对继电保护装置的可靠性进行分析，并根据多状态的特点，使用GO法对继电保护系统可靠性进行分析，实现了继电保护装置和系统的实时可靠性分析功能。最后以某变电站线路保护系统为算例，证明了该方法为智能变电站保护系统实时可靠性的分析提供了有效手段。 |
| 关键词: 智能变电站 继电保护系统 实时可靠性 Markov模型 GO法 |
| DOI：10.7667/PSPC180107 |
| 投稿时间：2018-01-23修订日期：2018-04-05 |
| 基金项目:国家重点研发计划课题(2016YFB0900203) |
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| Real time reliability analysis of relay protection system in intelligent substation based on Markov model and GO method |
| YE Yuanbo,XIE Min,WANG Jiaqi,XU Yan,XU Dianyang |
| (State Grid Anhui Electric Power Dispatch Center, Hefei 230001, China;North China Electric Power University Baoding, Baoding 071000, China;Anhui Jiyuan Software Co., Ltd., Hefei 230001, China) |
| Abstract: |
| The digitization of total station information in intelligent substation provides the basis for real-time acquisition of relay protection information, however, the reliability analysis of relay protection system in intelligent substation remains in the estimation stage which is lagging behind the real-time operation state. This paper studies the real-time reliability of relay protection device by using the real-time message data of intelligent substation as the online monitoring data of relay protection system. First, from the online monitoring of intelligent substation, this paper classifies the message of intelligent substation and determines the state division of relay protection device. Second, the reliability of relay protection device is analyzed by Markov model, and GO method is used to analyze the reliability of relay protection system based on the characteristics of multimode so as to achieve the real-time reliability analysis function of relay protection device and system. Lastly, this method provides an effective means for the analysis of real-time reliability of intelligent substation protection system is proved by the example of a substation line protection system. This work is supported by National Key Research and Development Program of China (No. 2016YFB0900203). |
| Key words: intelligent substation relay protection system real-time reliability Markov model GO method |
