Design And Analysis Of Power Supply And Distribution System For The Bengbu Integrated Passenger Station-charging Station Project

The increase of environmental pollution makes energy-saving emission reduction technology increasingly attention.Among them,Electric Vehicle(EV)as a green vehicle,with high thermal efficiency,pollution-free,low noise,zero emissions and adjustable load,etc,leading the future direction of the development of the automotive industry,with broad prospects for development.Charging or exchange electricity station,as an important infrastructure for energy supply,is an important link in the electric vehicle industry chain.However,the contradiction between the rapid development of the electric vehicle industry and its ancillary facilities is increasing.To a certain extent,it has become the bottleneck of the new energy automotive industry.Therefore,in order to be able to provide new energy vehicles safe,stable and fast service,We need to build the matching construction of supporting the charge or exchange electric infrastructure.The author completed this article in the process of design and distribution of the Bengfu Integrated Bus Terminal-charging station project.The research on the power distribution system of electric vehicle charging station includes the following contents:First,a brief introduction to the current mainstream electric vehicle charging(change)electric mode and its latest developments,outlines the electrical system and the overall structure of the electric vehicle charging station.Secondly,describing the impact of large-scale electric vehicle access on the grid,in particular,electric vehicles have a great harmonic during charging,this is a kind of "pollution" to the power grid,must be governance.Based on the MATLAB / Simulink platform,this paper constructs a simulation model of a single charger,and then builds the simulation model of the charging station.Through the simulation calculation,the harmonic characteristics of the charging station are analyzed.On this basis,The charging station power quality improvement measures,and applied to engineering design.Finally,taking the design of the power supply of the Bengfu charging station as an example,the characteristics of the charging load are analyzed.Considering the influence factors of charging station on the power grid,the main wiring of the charging station is designed,and the reasonable distribution transformer and other main equipments in the station are selected,and the reasonable design scheme is obtained,which is of practical significance for engineering application and design.