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一种考虑排序稳定分析的电能质量综合评估新方法

, PP. 70-76

Keywords: 电能质量评估,熵值法,不确定性,联系度,排序稳定性分析

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Abstract:

在电能质量综合评估时,多位专家应用层次分析法确定其各指标权重,考虑到多位专家意见不统一造成的权重分配错误,运用熵值法求解出各位专家在确定电能质量指标权重时的作用大小,从而求得各指标的最终权重;然后,针对电能质量综合评估指标的不确定性,引入联系度概念,应用联系度处理电能质量综合评估指标的不确定性,将各评估指标值与标准值比较,建立电能质量综合评估的联系度模型;联系度中差异度系数是一个不确定的区间值,对其进行研究,可为电能质量优劣排序做进一步的稳定性分析,因而给电能质量综合评估提供了一种更精确全面的新方法。

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