基于梯级组合评分的农村电网精益化改造方法

Lean Transformation Method for Rural Electric Power Grid Based on Cascaded Combination Scoring

针对如何通过精准投资来实现农村电网的高效改造问题,提出一种基于梯级组合评分的农村电网精益化改造方法。首先梳理农村现状电网存在的主要问题,分别定义相应的评价指标及配套计算公式,对各问题的严重程度进行分级处理,设置每个评价指标的梯级评价标准,构建能充分反映农村电网薄弱环节及其严重程度的评价指标体系;然后,根据指标值确定有改造需求的设备,并将其作为评估对象,按照评价指标的评分标准对评估对象进行评分,采用基于指标相关性的指标权重确定(CRITIC)法确定各项评价指标之间的权重,计算评估对象的综合评分,完成对评估对象的梯级组合评分;最后,按照综合评分大小进行降序排列,对评分排序靠前的设备优先进行改造。实例分析证明了该方法的正确性和有效性。

Aiming at the problem of how to realize the efficient transformation of rural electric power grid through precise investment,a lean transformation method for rural electric power grid is put forward based on cascaded combination scoring.Firstly,the main problems existing in the current rural electric power grid are sorted out,and the corresponding evaluation indices are defined.The calculation formulas for matching each evaluation index are given.The severity of each problem is graded,and the cascaded evaluation criteria for each evaluation index is set up.An evaluation index system is constructed,which can fully reflect the weak links of rural electric power grid and its severity.Secondly,according to the index value,the equipment that needs to be transformed is determined and taken as the evaluation object.According to the evaluation index evaluation criteria,the evaluation object is scored.The weight of each evaluation index is determined by criteria importance through intercriteria correlation(CRITIC)method,the comprehensive score of evaluation object is calculated and the cascaded combination score of the evaluation objects is then completed.Finally,the evaluation objects are arranged in the descending order according to the size of the comprehensive score and the top ranking equipment should be given priority to be reformed first.The example analysis proves the correctness and effectiveness of the method.