Research On The Influence Of Different Charging Modes On The Layout Of Electric Bus Charging Stations

With the deterioration of the natural environment and the prominent shortage of energy,the world attaches more and more importance to low-carbon environmental protection work.With the national promotion of new energy electric buses,scientific planning and construction of charging facilities is an important link in the large-scale development of electric buses,which is crucial for the development of the whole public transportation industry.Electric buses due to the current domestic cities mainly adopts centralized depot,concentrated charging energy supply mode,and different charging modes will affect the charging efficiency,and thus affect the electric bus operating costs,while different charging station location will affect the whole network through charging mode and charging the cost of operating efficiency.Therefore,it is necessary for bus companies to make a reasonable operation plan by combining charging mode and charging station location,so as to ensure the sustainable development of enterprises.In this paper,according to the characteristics of the electric bus network,considering the influence of the charging strategy of charging station location,in different charging mode,build in the charging station location and train operation plan arrangement of collaborative optimization,aiming at the lowest total cost of the electric bus charging station site selection model,and in view of the model is proposed based on particle swarm optimization(pso)algorithm to solve,Finally,taking Shunde District of Foshan as a case,the applicability of the model and algorithm is verified,and the site selection scheme of charging stations under two charging modes is obtained,including the geographical location information and the number of charging piles.The results are analyzed,and the conclusions of this paper are as follows:(1)Although the slow charging mode at night + fast charging mode during the day will lead to the increase of charging cost,the total cost is lower than that of the slow charging mode only during the night non-operating time by saving the amount of electric bus input.(2)Through sensitivity analysis of some factors,the influence of different factors on the site selection scheme and the total cost of charging stations can be obtained.For example,the lower the power consumption per run and the higher the battery capacity,the lower the total cost.In addition,the power consumption of each train of each line also has a certain impact on the generation of the final scheme and the total cost.Therefore,these factors can be used as research directions to reduce the total cost of electric bus charging system.At the same time,certain measures can be considered,such as bus priority to reduce the total cost of the system.(3)The modeling and algorithm for the problem proposed in this paper have high efficiency and fast convergence speed,which can effectively give the location scheme of charging stations and the cost composition of each part in the planning stage,which can be used as a reference for planners,and can provide them with the direction of cost reduction through the cost composition.In conclusion,the research results of this paper can provide useful references for the planning of electric bus network,the construction of charging facilities and the operation and scheduling of bus.