The invention provides a power system load flow calculation method considering an electric vehicle. The method comprises the steps that electrical parameter information of the electric vehicle and behavior habit information of a user are acquired; utilizing a Monte Carlo simulation method to obtain a simulation load curve of the electric vehicle according to the electrical parameter information and the behavioral habit information; structural parameter information of the power system is obtained, a high-order nonlinear load flow equation is established in combination with the simulated load curve, and a load flow variable is obtained through calculation by utilizing a Newton-Raphson method. According to the method, the Monte Carlo simulation method is adopted; a large amount of data can befitted to obtain the charging power curve of the electric vehicle; the charging power curve is introduced into load flow calculation; the influence of the electric vehicle on a power system can be effectively analyzed; and symbiotic development of the electric vehicle and a power network is assisted.
本发明提供了计及电动汽车的电力系统潮流计算方法,包括:获取电动汽车的电气参数信息和用户的行为习惯信息;利用蒙特卡洛模拟法,根据电气参数信息和行为习惯信息得到电动汽车的模拟负荷曲线;获取电力系统的结构参数信息,结合模拟负荷曲线建立高阶非线性潮流方程,利用牛顿拉夫逊法计算得到潮流变量。本发明采用蒙特卡洛模拟的方法,可以将大量数据拟合得到电动汽车的充电功率曲线,并将其引入到潮流计算中,能够有效分析电动汽车对电力系统的影响,辅助电动汽车与电力网络的共生发展。
Power system load flow calculation method of electric vehicle
计及电动汽车的电力系统潮流计算方法
2020-06-05
Patent
Elektronische Ressource
Chinesisch
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