计及可入网电动汽车的微网系统经济调度

Economical Dispatch of Microgrid Considering Plug-in Electric Vehicles

概述了电动汽车的功率特性,以蒙特卡洛法仿真电动汽车的充放电行为,得到不同规模的电动汽车接入电网时的负荷特性曲线。分析了电动汽车无序充电时的需求特性和电动汽车接入网络时有序充放电容量曲线,并构建了能够计及可入网电动汽车的微网多目标经济调度模型。基于Visual C++软件平台,采用优先顺序法,以某地区某日经济调度为例,计算得到不同策略、不同目标函数下的最优调度结果。最后,通过比较分析,验证了所提模型的有效性和可行性。

The characteristic of the electric vehicle(EV)power is summarized.The Monte Carlo method is used to simulate the charging and discharging behaviors of EVs,and the load characteristic curves of plug-in EVs of different scales are obtained. The demand characteristic of uncoordinated charging EVs and the capacity curve of controlled charging and discharging EVs in the vehicle-to-grid(V2G)mode are analyzed.Then the multi-objective economical dispatch model for microgrid considering plug-in EVs is developed.Take the one-day economical dispatch of a certain area,which shows the optimal dispatch results of different strategies and different objective functions are obtained with the priority list based on the software package of Visual C++.Finally,the availability and feasibility of the model are verified through a comparative analysis.