Research On Comprehensive Performance Index System And Risk Evaluation Model Of Distribution Network Equipment Assets

With the rapid development of new energy,the large-scale access of distributed energy,the extensive participation of energy storage and charging and discharging equipment has gradually become the development trend of the distribution network.As the most distributed part of the power system,the network structure is the most complicated.The power grid will assume responsibility for social development and energy transformation other than the traditional guarantee of safe and reliable power supply and use.Research on the distribution network and its equipment so that it can serve the society and people’s livelihood more effectively has become a current research focus.Based on this,this article takes the distribution network equipment as the object,analyzes the evaluation system of the comprehensive performance of the distribution network equipment,and conducts a comprehensive evaluation.First of all,it considers and analyzes the role and significance of the current energy form and power environment on the comprehensive performance of distribution network equipment,and carefully combs the relevant research results at home and abroad,based on the current universal power grid equipment management evaluation at home and abroad.Standard,analyzes the current main evaluation index system for the performance of distribution network equipment.Secondly,through the analysis of the characteristics of the distribution network system,the performance concept of the distribution network equipment is expanded from ordinary economic value input and output to four aspects:safety and stability,green power,social responsibility,and economic benefits.Then,starting from the influence of the distribution network where the equipment is located on the performance of the equipment and the status of the equipment itself,the influencing factors that affect the overall performance of the equipment are sorted out.Based on the index selection principle and the current domestic distribution network evaluation standards,the influencing factor set is screened hierarchically through the interpretive structure model,and the risk,green,and economic corresponding screening-driven indicators and outcome indicators are obtained.The comprehensive performance evaluation system of distribution network equipment has been developed.Finally,use the analytic hierarchy process and the entropy method to combine subjectively and objectively to calculate the index weight,and find the optimal weight coefficient to get the final weight of the index system.Then based on the cloud model,the fuzzy comprehensive evaluation method was improved,and the equipment comprehensive performance evaluation model was built.And collect the three-year indicator data application model of three distribution network equipment in three regions for empirical analysis.The analysis results of the calculation examples show that the evaluation model constructed in this paper can effectively evaluate the comprehensive performance of the distribution network equipment.