基于保护信号的隐性故障检测  

Detection of hidden failure based on protection signals

作　　者：梁辰[1] 邰能灵[1] 胡炎[1] 朱钦[2] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]国网上海市电力公司市南供电公司,上海200233

出　　处：《电力自动化设备》2016年第5期154-159,165,共6页Electric Power Automation Equipment

基　　金：大型风电场电能储存与转换关键技术研究项目(113023A)~~

摘　　要：目前尚缺乏有效的继电保护装置隐性故障检测方法,因此提出了一种基于保护信号解析模型的隐性故障检测方法。该方法根据保护启动、保护动作、断路器跳闸、故障位置信号之间的逻辑关系,以及主保护和后备保护之间的配置规则,并考虑线路三段保护、拒动误动等情况,构建描述各信号之间关联的解析模型。将信号的实际状态和期望状态的最大匹配作为优化目标,利用优化结果检测隐性故障。算例分析结果表明了该方法的有效性。Since there is no effective way to detect the hidden failures of relay protective equipment,a method based on the analytic model of protective signals is proposed,which,for describing the association among the signals,establishes an analytic model according to the logical relationships among the signals of protective triggering,protective action,breaker tripping and fault location,and the configuration rules between main and backup protections,and the states of line three-zone protective operation,refuse-to-operation,maloperation,etc. The maximum matching between actual and expected states of signal is taken as the objective of optimization and the results of optimization are applied to detect the hidden failures. The analytical re-sults of case study prove the proposed method effective.

关 键 词：继电保护 隐性故障 解析模型 保护信号 保护启动 故障分析 

分 类 号：TM73[电气工程—电力系统及自动化]