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Power System Fault Diagnosis Based on Gradual Optimization in Consideration of Alarm Information Aberrance
Author(s): 
Pages: 178-185,190
Year: Issue:  9
Journal: Transactions of China Electrotechnical Society

Abstract: 基于优化算法的电网故障诊断方法可归纳为相似性诊断方法和覆盖性诊断方法.在故障信息发生畸变时,两类方法分别存在漏诊断和误诊断的问题.为了提高电网故障诊断的准确性,结合两类诊断方法的特点提出了电网故障诊断的分级优化方法.该方法依次进行所有警报信息的相似性诊断,保护信息的相似性诊断,以及覆盖性诊断,通过分级诊断分离出故障发生可能性不同的几类可疑故障元件.算例测试表明该方法避免了传统优化方法的弊端,可在警...
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