Layout Planning Of Combined Charging And Swapping Stations For EV In Region T

In recent years,the electric vehicle industry has developed rapidly,but there are still deficiencies in the supporting charging and replacing links.The main problems of charging and swapping stations in the T area are centralized layout,low facility utilization,low charging power,imperfect network planning,and lack of power swap facilities.Therefore,quantitatively predicting the distribution of charging and swapping demand,rationally deploying charging and swapping networks,and exploring the combined advantages of charging and swapping service modes have become the main research goals of this paper.This paper takes the charging and swapping load as the core,predicts the time distribution of users’ charging and swapping demands in T area,analyzes the time distribution of charging and swapping demands of three different models in detail,and combines the spatial distribution of alternative stations and coverage of demand for charging and swapping,and the number of POIs,and temporal distribution of demand,which provides an important reference for the layout planning of the charging and swapping network.The placement model of charging and replacing power station based on the forecasting results of charging and replacing power demand considers two objectives: the best comprehensive service capability of the network and the lowest life cycle cost,including the charging and swapping demand satisfaction rate,POI coverage rate,network area growth rate,land cost,construction cost and operating cost factors.In this paper,taking the T area as an example,based on the obtained data,the genetic algorithm is used to solve the placement model of the charging and swapping station,and the location of the new charging and swapping station,the number of charging piles to be built,and the number of swapping batteries are obtained.According to the results of site selection and capacities of constant,this paper obtains the service capacity of the newly-built station,and puts forward a combined operation strategy of charging and swapping.Compared with the power load of only using charging service,the "peak shaving and valley filling" effect of power load in the mode of charging and swapping is obtained,which proves the advantages of the charging and swapping combined station in improving business benefits and power load distribution.The research results of this paper provide a reference for the rational layout of regional charging and swapping networks.First of all,the forecasting results of power load demand for charging and swapping provide a quantitative basis for determining the service capacity of charging and swapping stations.Secondly,the placement model based on POI factors improves the rationality of the location,avoids the low utilization rate of charging and swapping facilities,and improves the revenue of operators.Finally,the positive complementary effect of charging and swapping service is verified by quantitative analysis of power load distribution under different energy supplement strategies.