Research On Low-Carbon Economy Optimization Scheduling Of Integrated Charging Station For New Energy Vehicles

With the increasingly serious problems of energy crisis and environmental pollution,the global energy consumption structure is transitioning to clean and low-carbon.As the focus of transformation,the automobile industry has accelerated its development towards new energy vehicles(NEVs)with energy-saving,emission-reduction,green and low-carbon advantages.However,problems such as voltage drop,large peak-to-valley difference,and network loss caused by disorderly charging of large-scale NEVs pose new challenges to the safe and stable operation of the power system.At the same time,charging stations providing charging services for NEV also have many problems,such as long charging time,great impact on the power grid,limited dispatching capacity,and failure to consider the charging demand of fuel cell vehicles,which limit the development of NEV.In addition,the low-carbon environmental benefits of NEVs and the charging stations also need further evaluation.In response to the above problems,this paper proposes a low-carbon economic optimization model and scheduling strategy for NEV integrated charging stations.The main research contents are as follows:Firstly,an energy optimization scheduling model of NEV electric-hydrogen integrated charging station was proposed to solve the optimization operation problem of charging station.The integrated charging station is composed of battery swapping station(BSS)and hydrogen station(HS)to provide charging service for NEVs.The BSS system model mainly includes the user adaptive response model and the battery allocation strategy to reasonably allocate the batteries in the BSS and realize the management of battery charge,discharge,free and exchange.The HS system model mainly includes hydrogen production module,hydrogen storage module,hydrogen charging module,fuel cell module and hydrogen scheduling strategy to optimize scheduling from hydrogen production to use.At the same time,the proposed optimization model and strategy can not only enable the BSS to provide electric energy for the HS,but also enable the integrated charging station to feed back electric energy to the power system during the peak load,helping the power system to cut peak and fill valleys,and improving the stability,flexibility and economy of the system.Secondly,aiming at the environmental benefits of NEV and integrated charging station,a low-carbon economic optimization model for NEV integrated charging station is proposed.On the basis of the above model,the carbon trading model and carbon price mechanism of the integrated charging station are established to reward and punish carbon emissions and guide the charging behavior of NEV users to encourage the consumption of clean energy and reduce carbon emissions.At the same time,a NEV carbon trading model is established to enable NEV users to participate in the carbon trading market,so as to encourage users to give full play to the benefits of emission reduction.Then,considering the differences and uncertainties of NEVs,an uncertain optimal scheduling model for NEVs and integrated charging stations is established.In addition,the integrated charging station can give full play to the advantages of low storage and high generation,cut peaks and fill valleys for the power system,reduce wind and light abandonment and carbon emissions,further realize the flexible transfer of energy,and improve its own income.