Joint Planning of Electric Vehicle Charging Station and Energy Storage System in the Distribution Network

Abstract

Unified consideration of the joint planning of energy storage system, electric vehicle charging station and distribution network expansion can not only meet the charging demand, but also improve the economy and reliability of the planning scheme. This paper mainly considers the planning and research of electric vehicle charging and distributed energy storage system access to distribution network, on the basis of traditional distribution network planning, it not only meets the charging needs of electric vehicle and distributed energy storage system, but also improves the safety and economy of the design scheme, considers the factors related to the location and capacity of electric vehicle charging station and distributed energy storage system, takes the total cost as the objective function, uses the DC method to calculate the power flow, and establishes a mixed integer linear programming model. Using Yalmip toolbox to establish the 24-node planning model of power system, starting from the actual engineering situation, using the Cplex solver to solve the grid structure, electric vehicle charging station configuration location, and distributed energy storage system location after distribution network planning, the reliability and economy of the scheme are obtained through comparison.