Research On Comprehensive Benefit Evaluation Of Distribution Network Planning Of Power Supply Enterprises

With the rapid development of high-quality society in our country,the demand for electricity in various industries is also expanding.As an important part of the power system,the planning of the distribution network and the evaluation of comprehensive benefits play a crucial role in the investment,construction and high-quality development of power supply companies,especially when the current demand for energy is becoming more and more obvious and traditional In the context of decreasing energy sources,countries are also actively advocating low-carbon development,using energy efficiently,improving the efficiency of power grid operation,and achieving sustainable and highquality development between the economy,energy and the environment,which are urgent issues to be solved.Based on the actual situation of distribution network planning in a certain region,this paper mainly carries out the research work in the following aspects:First of all,on the basis of fully understanding the current status and frontier work of comprehensive evaluation of distribution network planning,according to the characteristics of comprehensive evaluation of distribution network planning,through statistical data and detailed analysis and research,a comprehensive and reasonable method is reconstructed.The comprehensive evaluation index system of the distribution network planning scheme is mainly carried out from five aspects: economy,power supply capacity,grid structure,equipment technology and environmental protection.Secondly,based on the idea of analytic hierarchy process,the problem to be studied is divided into four index levels to establish a hierarchical structure model,and each evaluation index at each level is defined and elaborated,and the index importance is ranked by improving the traditional weight calculation..Comprehensive and in-depth analysis of several commonly used comprehensive evaluation methods,based on the AHP method,the improved D-S evidence theory is introduced to process uncertain information,the weight allocation of the evaluation index system is recalculated,and the fuzzy comprehensive evaluation method is used to match the matching.Comprehensive evaluation of power grid benefits.Finally,the feasibility of the method is verified by taking the distribution network planning of a certain area as a case.Based on the evaluation index system and comprehensive evaluation model established in this paper,a comprehensive evaluation is carried out.The research results show that the evaluation index constructed in this paper is The system and evaluation model are suitable for the comprehensive evaluation of distribution network planning.At the same time,the results also verify the rationality and applicability of the evaluation index system and comprehensive evaluation model,which can provide a certain degree of reference for the comprehensive evaluation of distribution network planning.