考虑EV负荷的微电网多主体联合容量优化配置方法

Optimization of capacity configuration method formulti-agent microgrid considering EV load

随着可再生能源(RE)的快速发展与智能电网的不断进步,现代电力系统的能耗特性设计朝着更灵活、更经济的微电网(MG)快速转变,MG多主体综合能源的高度参与给系统的高效经济运行带来了挑战。针对MG多能交互的复杂容量配置现状,文中提出一种包含光伏(PV),风电(WT),柴油发电机(DG)和电池储能系统(BESS)的独立MG联合容量优化方法。建立PV、WT、DG、BESS和电动汽车(EV)充电负荷模型,考虑了EV充电负荷,以最小化成本、减少温室气体排放、减少弃能为目标进行容量配置,结果表明提出的PV-WT-BESS-DG组合结构不仅经济而且可靠性高,温室气体排放量小。研究结果可为MG容量优化配置提供有力支撑。

With the rapid development of renewable energy(RE)and the continuous progress of smart grid,the energy consumption characteristic design of modern power system is developing towards a more flexible and economical microgrid(MG).Meanwhile,the high participation of multi-agent integrated energy in MG brings challenges to the efficient and economic operation of the system.Aiming at the complex capacity configuration of MG with multi-functional interaction,a combined capacity optimization method for a typical independent MG including photovoltaic(PV),wind turbines(WT),diesel generators(DG)and battery energy storage system(BESS)is proposed.On the one hand,the models of PV,WT,DG,BESS and electric vechicle(EV)charging load are established.On the other hand,the EV charging load are considered,and the capacity configuration is optimized to minimize the cost,reduce greenhouse gas emissions and energy waste.The results show that the combination of PV-WT-BESS-DG is not only more reliable but also more economical.This study can provide support for the optimal allocation of MG capacity.