Research On The Comprehensive Utilization Planning Of Distribution Network Layout And Channel Resources

With the development of urbanization,there are frequent contradictions among public facilities construction for limited channel resources.With the introduction of electric vehicles,flexible load and other controllable equipment,as well as the planning and construction of charging stations for electric vehicles,the contradiction between supply and demand of corridor channel resources will be further aggravated.Therefore,it is necessary to conduct a comprehensive planning study of distribution network layout and actual line channel resources,so as to provide theoretical reference for the future line planning and construction of distribution network.At first,the multi-objective optimization model of distribution network layout is studied.The available margin model is introduced considering the total annual cost model of distribution network and an improved deletion path algorithm is proposed.The value of K in algorithm is fitted with different network complexity.Then,the optimal scheme of K feasible paths is selected by using the technique for order preference by similarity to an ideal solution(TOPSIS),and the rationality and superiority of the multi-objective model are verified by taking the distribution network layout planning in a city center area as an example.Secondly,the interaction among electric vehicle users,charging stations and distribution network is deeply analyzed.The total annual time cost model of electric vehicle users is established with the traffic flow of the related road network and the travel characteristics of users.The total annual cost model of the whole society is presented based on the total annual cost of charging stations and distribution network.Combined with the available margin model,the multi-objective optimization model of distribution network line layout is proposed for the planning of the line layout of electric vehicle charging stations connected to the distribution network.Finally,the rationality and feasibility of the multi-objective model are verified by an example of distribution network feeder planning of electric vehicle users and electric vehicle charging stations in a planning area.