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高压电器  2015 

基于改进雷达图理论的交联聚乙烯电力电缆运行状态综合评估

, PP. 145-150

Keywords: 电力电缆,雷达图,绝缘老化,状态检修,层次分析法,灵敏度分析

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Abstract:

为了对电力电缆状态检修提供决策支持,提出了一种基于改进雷达图理论的交联聚乙烯电力电缆运行状态综合评估模型。通过预防性电气试验、在线监测技术、设备缺陷及运行检修记录等途径获取电缆特征变量,建立了电缆运行状态综合评价指标体系。运用改进的层次分析法得到各项指标的权重值,在此基础上,对雷达图中各评估指标对应的扇形区域进行排序和角度分配,推导出了交联聚乙烯电力电缆运行状态综合评估和指标属性灵敏度计算公式。结合实际算例对电缆运行状态进行了定量评估分析,并与现有方法进行比较验证了该模型的正确性与优越性。

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