| 引用本文: | 梁 辰,邰能灵,胡 炎,朱 钦.基于保护信号的隐性故障检测[J].电力自动化设备,2016,36(5): |
| LIANG Chen,TAI Nengling,HU Yan,ZHU Qin.Detection of hidden failure based on protection signals[J].Electric Power Automation Equipment,2016,36(5): |
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| 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。 |
| 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 |
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| Detection of hidden failure based on protection signals |
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LIANG Chen1, TAI Nengling1, HU Yan1, ZHU Qin2
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1.School of Electronic Information and Electrical Engineering，Shanghai Jiao Tong University，
Shanghai 200240，China;2.State Grid Shanghai Shinan Power Supply Company，Shanghai 200233，China
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| Abstract: |
| 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，mal-operation，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 results of case study prove the proposed method effective. |
| Key words: relay protection hidden failure analytic model protection signal protection triggering failure analysis |
