500kV智能变电站自动化系统故障容错机制研究

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关键词： 500kV 智能变电站；自动化系统；故障容错；硬件余；RTDS

中图分类号：TM63 文献标志码：A 文章编号：1003-5168（2025）21-0009-04

DOI：10.19968/j.cnki.hnkj.1003-5168.2025.21.002

Abstract：[Purposes]To address the problem of 500kV smart substation automationsystem faultsaffecting power grid safety operation，this study aims to design an effective fault tolerance mechanism to enhance system reliability and fault tolerance capability.[Methods]A multi-level fault tolerancearchitecture including hardware redundancy，software fault tolerance，and communication network fault tolerance was constructed. Key technologies such as fault detection and diagnosis，fault isolation and recovery，and system reconfiguration and switching were studied.A complete fault tolerance performance evaluation system was established and verified through a simulation platform based on RTDS.[Findings] The proposed fault tolerance mechanism can effectively improve the system availability factor to over 99.9% ， shorten fault recovery time to minute level，achieve fault detection rate above 98% ，and switching time less than 5 seconds.[Conclusions] The fault tolerance mechanism significantly improves the operational reliabilityof 500kV smart substations，provides important technical guarantee for safe and stable power grid operation， and demonstrates good engineering application value.

Keywords： 500kV smart substation; automation system; fault tolerance; hardware redundancy; RTDS

0 引言

随着我国电力系统规模持续扩大， 500kV 超高压变电站作为电网骨干网架的重要组成部分，承担着大容量电能传输和分配的关键任务。（剩余4753字）