摘要
研究电动汽车对广州电网负荷峰谷特性的影响。首先分析了广州市动公交车的运营规律,得到了其充电负荷特性;然后根据统计数据,考虑随机因素的影响,得到电动私家车总体充电功率需求的计算方法;最后,结合广州电网2020年的日负荷特性,预测了电动汽车对广州电网负荷峰谷特性的影响。计算结果表明,电动公交的无序充电将使广州电网的最大负荷发生一定增长,同时轻微加大峰谷差,而电动私家车对电网的影响很微小。
In order to investigate the influence of electric vehicles （EV） to the peak-valley load characteristics of power grid in Guangzhou, firstly investigate the charging load of electric buses in Guangzhou by analyzing their operating rule. Secondly built a statistic model of the charging load of electric private cars;get the calculating method of the overall charging load of them, which is based on the existing statistic data of their travel pattern and the probability distribution of random factors. Finally, we predict the influence of EVs to the peak-valley load characteristics of power grid in Guangzhou with the predictive daily load in Guangzhou in 2020. Calculation results show that the disordered charge of EVs may increase the maximum load and slightly increase the peak-valley difference of the power grid in Guangzhou.
出处
《机电工程技术》
2016年第10期113-117,共5页
Mechanical & Electrical Engineering Technology
关键词
电动汽车
充电负荷计算
充电模式
负荷特性
electric vehicle
charging load calculation
charging mode
load characteristics
