可入网电动汽车对配电网负荷影响的研究

Study on Distribution Network Load Considering Plug-in Electric Vehicles

通过蒙特卡洛模拟法,仿真得出私人电动汽车的日行驶里程数和接入电网的时间。在电价和相关政策的引导下,制定无序充电和有序充放电两种私人电动汽车的充电策略。选取合肥地区春夏两个典型日的日负荷,研究在两种充电策略下可入网电动汽车对配电网络日负荷的影响。研究表明:对电动汽车充放电进行有序引导,可以减少配电网负荷波动,达到削峰填谷的效果,并提高电动汽车使用者的经济性。

In this paper,the daily mileage and access time of private electric vehicles are obtained by Monte Carlo simulation.Under the guidance of electricity price and relevant policies,two charging strategies of private electric vehicles,disorderly charging and orderly charging and discharging,are formulated.The daily load of two typical days in spring and summer in Hefei is selected to study the impact of accessible electric vehicles on the daily load of distribution network under two charging strategies.The research shows that the orderly guidance of electric vehicle charge and discharge can reduce the load fluctuation of distribution network,achieve the effect of peak shaving and valley filling,and improve the economy of electric vehicle users.