| Electric vehicles have played a great role in alleviating the energy crisis and reducing environmental pollution,and their development has been widely concerned and strongly supported by countries all over the world.In 2020,the number of electric vehicles in China has exceeded 4.9 million,and the number of charging piles is 1,681,000,which is far lower than the goal of “The ratio of electric vehicles to charging piles reaches 1:1”.The rapid growth of the number of electric vehicles is bound to bring great challenges to the planning and construction of electric vehicle charging and battery swapping facilities.Whether the layout planning of charging and battery swapping infrastructure is scientific and reasonable will affect the convenience of charging and battery swapping for electric vehicle users,and then affect the development of electric vehicle industry.Therefore,it is of great significance to study the joint planning method of charging and battery swapping facilities considering the charging and battery swapping demand of electric vehicles for promoting the development of electric vehicle industry and alleviating the problems of energy shortage and environmental degradation.Based on the above research,this thesis makes the following research on the prediction method of electric vehicle charging and battery swapping demand and the joint planning method of various charging and battery swapping facilities:（1）This thesis analyzes several existing electric energy supply modes of electric vehicles,considers the influence of geographical constraints on the layout scale of charging piles,and uses Monte Carlo simulation method to predict the temporal and spatial distribution of charging and battery swapping demand of electric private cars and electric taxis respectively.（2）Based on the temporal and spatial distribution of charging and battery swapping demand electric vehicle,the scale of charging piles to be arranged in different areas is determined according to the maximum online charging quantity of electric vehicles in a day,so as to meet the needs of private cars for charging convenience.The operating state model of the charging and swapping station is established for the calculation of the objective function.The charging and swapping station planning model is established with the goal of minimizing the sum of the construction and operation cost of the charging and battery swapping station,the user’s queuing time cost,the user’s travel time cost on the way to swap battery,the charging cost of the charging and battery swapping station and the loss cost of the distribution network.And the charging and battery swapping station in direct charging mode and peak shifting mode is simulated and analyzed.（3）The operating state models of the battery swapping station and the centralized charging station are established,taking into account the costs of users,the battery swapping station and the centralized charging station,and considering the impact of the number of deliveries on the planning scheme,a joint planning model of the battery swapping station and the centralized charging station is created.Taking an urban transportation network of Changchun and IEEE 33-node system as an example,the feasibility and effectiveness of the proposed joint planning method are verified.The simulation results show that the prediction results of charging and battery swapping demand are basically consistent with the travel rules of users.The planning of charging piles can meet the charging needs of some private cars,and the planning of charging and battery swapping stations and the joint planning of battery swapping stations and centralized charging stations can make up for the shortage of the insufficient number of charging piles that can not meet the charging needs of some private cars.It can also provide faster services for taxis,which is conducive to the development of the electric vehicle industry. |
PDF Full Text Request