基于用户响应度的电动汽车有序充放电策略

Orderly charging and discharging strategy of electric vehicles based on user responsiveness

针对大规模电动汽车接入对微电网经济运行造成不利影响的问题,提出基于峰谷分时电价的电动汽车有序充放电控制方法。采用传递闭包法对峰谷电价时段进行划分,并考虑到用户的响应度,分析车主不同充放电行为对于微电网负荷的影响,构建在保证微电网稳定前提下,增加微电网收益的电动汽车有序充放电的优化调度数学模型,并采用混沌理论改进灰狼算法对问题进行求解。通过仿真,证明所提的策略能合理分配电动汽车充电时段,激励用户参与电价响应,增加微电网的收益,实现电动汽车与微电网的协调运行。

Aiming at the problem that large-scale electric vehicle access has adverse effects on the economic operation of microgrids, an orderly charging and discharging control method for electric vehicles based on peak-valley time-of-use electricity prices is proposed. The transmission closure method is used to divide the peak and valley electricity price periods, and taking into account the user′s responsiveness, the impact of different charging and discharging behaviors of car owners on the load of the microgrid is analyzed, and an electric vehicle that increases the revenue of the microgrid under the premise of ensuring the stability of the microgrid. The mathematical model of optimal scheduling for orderly charging and discharging, and the improved gray wolf algorithm using chaos theory to solve the problem. Through simulation, it is proved that the proposed strategy can reasonably allocate the charging period of electric vehicles, encourage users to participate in the electricity price response, increase the revenue of the microgrid, and realize the coordinated operation of electric vehicles and microgrid.