摘要
当前电动汽车快速发展当其接入电网进行充放电时将会带来可靠性方面的影响。主要针对目前电网实施分时电价的背景下,电动汽车采用受控方式接入对电网的可靠性影响进行研究。首先假设其接入点为同一位置,得出电动汽车在不受控充电方式下对电网的可靠性指标影响;同时,比较采用受控方式的电动汽车,在电价高低不同导致的接入量变化时,电网的可靠性指标变化情况。基于统计学数学假设的方法,建立了能够反映电动汽车充放电行为的功率模型;并采用IEEE-RBTS Bus 6测试系统为主线,利用贯序蒙特卡罗法对与电动汽车连接的配电网进行可靠性评估。结果表明,受控充电方式下电网的可靠性比较不受控方式要高;同时表明,分时电价下电价较低时,接入受控方式的电动汽车比电价高时接入电动汽车电网的稳定性较好。
With the rapid development of electric vehicles large-scale charging of electric vehicles（ EV） will affect power grid operation in the future. Time-of-use（ TOU） pricing method was studied for electric vehicle charging. Based on this a coordinated electric vehicle charging strategy is proposed to reduce operators＇ power purchase costs and customers＇ charging costs,while realizing friendly charging load in smart grid. First of all,it was assumed that the access point is constant. In electric vehicles is not controlled charging mode impact on the reliability index of the power grid,at the same time,more use in a controlled way electric cars when electricity prices high and low to changes caused by different grid reliability index changes a statistical model of electric vehicles＇ power demand is built. And the IEEE-RBTS bus 6 test system as the main line sequential Monte Carlo method is used to connected to the electric car to assess the reliability of the distribution network. The results show that the controlled charging mode grid reliability higher their generation is not in a controlled way. Also it was suggested that time-sharing price the price is lower in a controlled way access to the electric car is higher than price when access to the stability of the electric power grid is better.
出处
《科学技术与工程》
北大核心
2017年第27期220-226,共7页
Science Technology and Engineering
基金
国家自然科学基金(51367014)资助
关键词
分时电价
电动汽车
充电负荷
可靠性
蒙特卡罗
time-sharing electr icity
electr ic vehicle （ EV）
charging load calculation
reliabili tyMonte Carlo
