Layout of Charging-Swapping-Storage Integrated Station and Path Optimization of Cable Power Supply
As the penetration rate of electric vehicles(EV)in the urban power system gradually increases,the system's ability to sup-port electric vehicles needs to be further improved.Combined with the urban power distribution system to configure a new type of centralized charging and swapping facilities is an effective way to solve the problem,and reasonable and effective optimization of the planning is a major difficulty.In response to the question,a comprehensive planning model considering the sizing and locating of the electric vehicles'charging-swapping-storage integrated station(CSSIS)is proposed,as well as path optimization of the cable power supply.Based on the analysis of the functional characteristics of charging and swapping facilities,the operation models and sizing models of charging station,swapping station and energy storage station are established respectively.Based on this,the integrated operation model and sizing and locating model of CSSIS is established.Meanwhile,combined with the probability distribution characteristics of EVs in the planning area,the EV load of the CSSIS is analyzed.Considering the requirements of different types of loads on power supply reliability and the types of cable power supply corridors,an optimization method of cable power supply path combined with the layout of CSSIS is proposed.Based on the free cash flow theory analysis for the firm,the cumulative net present value of the planning of the EV's CSSIS is optimized.Meanwhile,the cable power supply path and its supporting cable corridor are optimized.The model is solved by YALMIP/CPLEX optimization toolbox.Taking a certain area as the planning area,the feasibility and effectiveness of the method proposed are verified,which provides new ideas and references for the optimization planning of electric vehicle integrated stations and their supporting urban cable distribution systems.
charging-swapping-storage integrated stationsizing and locatingcable power supplypath optimizationfree cash flow for the firmelectric vehicle
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