基于改进组合权重的电网救援优先级确定方法OA

Currently,extreme disaster accidents occur frequently,which causes the power grid equipment to be damaged to some extent in affected areas.In order to formulate an efficient rescue allocation scheme,it is very important to quickly and accurately evaluate the priority of power grid rescue after the disaster.When the disaster emergency decision evaluates the priority of power grid rescue,there are various influence factors to consider.The analytic hierarchy process(AHP)is designed to determine the weights of qualitative indicators,and the entropy weight method is used to assign weights to quantitative indicators.According to the two evaluation methods,a two-layer indicator system is established.Firstly,the assessment index weights in the first layer are calculated based on the analytic hierarchy.Secondly,the second layer indicators are treated respectively.Among them,the entropy weight method is introduced to normalize the quantitative variables and calculate the weights of the quantitative indicators.The qualitative indicators need to be transformed into quantitative indicators by the analytic hierarchy process and then use the entropy weight method to ascertain the weights.Based on an analytic hierarchy process and entropy weight method,the subjective and objective weighting combination weight assignment method of two-layer indicator system is established.Finally,through the analysis of actual cases in Shandong province,the priority of power grid rescue for the disaster areas can be accurately determined,which verifies the effectiveness and feasibility of the combination weight algorithm.