计及荷电状态效益的含电动汽车微电网优化调度  

Optimal Dispatching of Microgrid with Electric Vehicles Considering SOC Benefit

作　　者：徐岩[1] 王晨光[1] XU Yan;WANG Chenguang(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Baoding 071003,China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2021年第3期14-21,共8页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家重点研发计划项目(2016YFB0900203)

摘　　要：为了应对电动汽车接入微电网后用户仅通过电价响应将会产生新的负荷峰谷差,以及多次充放电带来的电池损耗与使用不便的问题,基于主从博弈的思想,提出了计及荷电状态效益的含电动汽车微电网优化调度模型。上层模型中微电网作为领导者,以微电网运行成本最低为目标制定合理的电价政策对电动汽车的充放电行为进行引导;下层电动汽车用户则计及自身荷电状态效益对电价政策进行响应,以自身效益最大为目标调整充放电策略。通过算例分析表明,所提模型在兼顾主从双方效益与降低微电网负荷峰谷差的同时,能够减少电动汽车充放电次数并使其荷电状态保持在较高水平。As electric vehicles are connected to microgrid,new load peak-valley difference will emerge due to users’respondence to the electricity price.It will also bring about battery loss and inconvenience because of multiple charging and discharging.Based on Stackelberg game,this paper proposes an optimal dispatching model of microgrid with electric vehicles based on state-of-charge(SOC)benefits.In the upper-level model,the microgrid is the leader,and a reasonable electricity price policy is formulated to guide the charging and discharging behavior of electric vehicles to minimize the operating cost of microgrid.In the lower-level model,the electric vehicle users respond to the electricity price policy according to their own SOC benefits.They can adjust their charging and discharging strategy to maximize their own benefits.The analysis of numerical examples shows that the proposed model can reduce the charging and discharging times of electric vehicles and keep the state of charge at a high level while taking into account the benefits of both sides and reducing the peak-valley load of the microgrid.

关 键 词：微电网 电动汽车 主从博弈 纳什均衡 优化调度 

分 类 号：TM715[电气工程—电力系统及自动化]