基于改进D-S证据理论的变电站继电保护二次回路故障诊断方法研究  

Research on Substation Relay Protection Secondary Circuit Fault Diagnosis Method Based on Improved D-S Evidence Theory

作　　者：侯圣 HOU Sheng(State Grid Shuozhou power supply company,Shuozhou 036000,Shanxi,China)

机构地区：[1]国网朔州供电公司,山西朔州036000

出　　处：《电气传动自动化》2024年第6期31-35,共5页Electric Drive Automation

摘　　要：本研究旨在探索基于改进D-S证据理论的变电站继电保护二次回路故障诊断技术,通过对改进D-S证据理论的深入分析,构建基于改进D-S证据理论的故障诊断框架。在此基础上,研究人员设计了二次回路模型,并提出了元件自检告警数据库和元件自检告警BPA生成方法,用于识别二次回路故障元件。通过故障诊断方法的验证,证明了该方法的有效性与可行性。研究结果表明,基于改进D-S证据理论的故障诊断方法,在提高变电站继电保护系统故障诊断准确性方面具有显著优势。该研究对提升电力系统安全性具有重要意义,可为相关领域的工程实践提供有益参考。The purpose of this study is to explore the fault diagnosis technology of substation relay protection secondary circuit based on Improved D-S evidence theory.Through the in-depth analysis of improved D-S evidence theory,a fault diagnosis framework based on Improved D-S evidence theory is constructed.On this basis,the researchers designed the secondary circuit model,and proposed the component self-test alarm database and the component self-test alarm BPA generation method to identify the secondary circuit fault components.The effectiveness and feasibility of this method are proved by the verification of fault diagnosis method.The results show that the fault diagnosis method based on Improved D-S evidence theory has significant advantages in improving the accuracy of fault diagnosis of substation relay protection system.The research is of great significance to improve the security of power system,and can provide a useful reference for engineering practice in related fields.

关 键 词：继电保护 二次回路 故障诊断 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程]