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电动汽车是坚强智能电网的重要组成部分,是实现低碳化交通的重要途径。在研究我国电动汽车相关政策和发展趋势的基础上,针对不同的充电模式建立了电动汽车充电负荷模型,并采用蒙特卡罗方法进行求解。以临沂市典型日负荷曲线为例,计算电动汽车的充电负荷曲线,并分析了不同充电情景对日负荷曲线的影响。结果表明:电动汽车充电负荷模型受充电模式影响很大,更换电池模式可以很大程度削减电网的峰谷差,提高电力设备的利用率,有利于电网的安全高效运行。
Electric vehicles are an important part of a strong smart grid and an important way to achieve low-carbon traffic. On the basis of studying the related policies and development trend of electric vehicles in our country, the charging model of electric vehicles is established for different charging modes and solved by Monte-Carlo method. Taking the typical daily load curve of Linyi as an example, the charging load curve of electric vehicle is calculated and the influence of different charging scenarios on daily load curve is analyzed. The results show that the charging model of electric vehicle is greatly affected by the charging mode. Changing the battery mode can greatly reduce the peak-to-valley difference of the power grid, improve the utilization of power equipment, and facilitate the safe and efficient operation of the power grid.