| At present,many achievements have been made in the long-term development of electric and hydrogen vehicles in our country,and the electric and hydrogen vehicle charging station is an important link to guarantee the reliability of new energy vehicle charging.The rationality of the hydrogenator and charging pile will restrict the planning of urban charging station.At present,the input of charging station has increased greatly on city road,but many problems have been exposed: long waiting time for charging,lack of comprehensive charging station which takes into account many kinds of new energy vehicles,uncertainty of charging,disorderly charging station.These problems will lead to sharp fluctuation of power grid and affect the quality of power supply for a period of time.In view of the above uncertainties,this paper presents the concept of multi-source micro grid electric hydrogen vehicle charging station considering urban garbage consumption.By studying the power flow in the electric hydrogen charging station and the dynamic charging strategy of new energy vehicles in the station under the real-time electricity price,the capacity of the electric hydrogen vehicle charging demand is configured.Through the conversion of energy forms between electric hydrogen production,photovoltaic power generation,garbage pyrolysis furnace and electric boiler in the station,the energy consumption reliability of electric hydrogen vehicles on urban roads can be improved,and the progress of new energy related manufacturing industries can be further promoted,so that the energy charging efficiency of electric hydrogen vehicles can be significantly improved.The research contents are as follows:Firstly,the energy charging reliability of electric-hydrogen vehicles is deduced by studying the travel law of electric-hydrogen vehicles.According to the traffic density of the selected node,the travel curve is drawn and the curve is combined.According to the user’s charging characteristics in the station,the hydrogenation and charging demand density model of the new energy vehicle is obtained,and the charging expectation of the electric vehicle and the hydrogen fuel cell vehicle is calculated.Secondly,the working mechanism and operation strategy of each component unit in the station are studied.Wind turbine output model,electrochemical hydrogen conversion model,photovoltaic generation model,waste pyrolysis model and electric boiler model are included.A power flow model is set up to meet the transition of various energy forms in the station.Finally,the optimal configuration model of urban electricity-hydrogen charging station considering the real-time pricing queuing strategy is studied.Based on the results of the station configuration in selected urban areas,a site configuration model of the station is established,which aims at the total investment cost of the station and the minimum comprehensive social cost of the load energy demand.Real-time price-oriented dynamic queuing strategy can take into account the interests of all sides,and with more new energy vehicles and greater responsiveness,the peaks and troughs of real-time price-oriented strategy will be less costly to customers,and the revenue loss of urban electric-hydrogen charging stations will be minimized.This paper introduces the optimized particle swarm algorithm into the proposed urban charging station optimization model considering the uncertainty of the charging demand of electrichydrogen vehicles by studying the dynamic charging queuing model. |
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