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电网技术  2015 

有源重要用户供电风险评估方法研究

DOI: 10.13335/j.1000-3673.pst.2015.01.006, PP. 35-41

Keywords: 用户需求,供电风险,梯形模糊数,马氏距离

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Abstract:

为切实保障有源重要用户的利益,挖掘供电过程中可能诱发用户安全、优质性和效益这3个方面需求不被满足从而产生风险的供电风险因素,归纳分类形成供电风险元。基于风险元传递思想,利用梯形相似模糊数建立了供电风险与用户需求风险之间的映射关系,定义了期望值函数使模糊数精确化,通过专家意见得到用户需求风险指标下的风险评估矩阵。考虑到用户需求风险指标之间具有很高的相关度,采用马氏距离代替传统的欧式距离求解每个供电风险元与正负理想解之间的距离,计算出每个风险元的风险值,根据TOPSIS思想对供电风险元威胁大小进行排序,排序结果可以很好地帮助供电公司辨识重要风险,制定规避策略。最后通过对比分析证明了所提方法的科学性和合理性。

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