基于灵敏度和灰色关联度的配电网运行方式变权重评估方法

为了对配电网运行方式进行准确的评估,提出了一种考虑指标灵敏度的配电网运行方式变权重评估方法。利用主成分分析法对配电网指标进行初步分析,根据分析结果利用最小二乘法计算灵敏度权重,同时利用灰色关联分析法对指标数据序列和评估量化值序列进行分析从而得到灰色关联度权重。灵敏度权重反映了指标对评估结果的影响程度,灰色关联度权重反映了指标数据序列与评估结果序列之间的关联程度,最后利用变权重公式实现指标的综合赋权。利用该方法对一个城市配电网进行评估,计算结果证明了该方法的有效性与可行性。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 45; no. 13; pp. 130 - 137
Main Author 周名煜 谢宁 王承民
Format Journal Article
LanguageChinese
Published 上海交通大学电气工程系,上海,200240 2017
Subjects
主成分分析法
变权重
指标灵敏度
灰色关联度
运行方式
配电网
index sensitivity
主成分分析法
灰色关联度
principal component analysis method
变权重
operation mode
distribution network
配电网
运行方式
variable weight
指标灵敏度
grey correlation
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Summary:为了对配电网运行方式进行准确的评估,提出了一种考虑指标灵敏度的配电网运行方式变权重评估方法。利用主成分分析法对配电网指标进行初步分析,根据分析结果利用最小二乘法计算灵敏度权重,同时利用灰色关联分析法对指标数据序列和评估量化值序列进行分析从而得到灰色关联度权重。灵敏度权重反映了指标对评估结果的影响程度,灰色关联度权重反映了指标数据序列与评估结果序列之间的关联程度,最后利用变权重公式实现指标的综合赋权。利用该方法对一个城市配电网进行评估,计算结果证明了该方法的有效性与可行性。
Bibliography:ZHOU Mingyu, XIE Ning, WANG Chengmin （Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China）
distribution network; operation mode; index sensitivity; principal component analysis method; grey correlation; variable weight
In order to make accurate evaluation of the operation mode of the distribution network, this paper proposes a variable weight evaluation method of the distribution network operation mode considering the index sensitivity. The evaluation indexes are analyzed using principal component analysis method, and the sensitivity weights are calculated using least square method according to the above results. Besides, the index data sequences and evaluation value sequences are analyzed using grey correlation analysis method in order to figure out the grey correlation weights. The sensitivity weights reflect the influence that the indexes and their values have on the evaluation results, while the grey correlation weights reflect the correlation degree between index dat
ISSN:1674-3415
DOI:10.7667/PSPC161021