Assessment of Distribution Network Equipment Risks Based on Combined Weighting and Modified MARCOS
The risk assessment of distribution network equipment is of great significance to safe,stable and reliable opera-tion of power system.In view of susceptibility of existing research results to human subjective factors,a risk assessment method for distribution network equipment based on combined weighting and modified MARCOS method is proposed.First entropy weight method and CRITIC method are used to calculate weights of all individual indices,and then principle of least identifying information is used for weight combination.Then the modified MARCOS method is used to calculate the utility function of each equipment to be evaluated,and the risk degree of each equipment is ranked according to the u-tility function value.Finally effectiveness of the proposed method is verified through case analysis.This method is not af-fected by human subjective factors,can achieve full use of characteristics of original data and reflect actual situation,and hence is more objective and more credible in result acquring.