摘要
电动汽车大规模无序接入电网充电可能会导致负荷峰谷差增大,加大电力系统不稳定性,给电网安全运行带来严重的威胁。但其“储能”功能可以与分布式能源互补,缓解分布式能源出力间歇性和波动性对电网的影响,有效降低含高比例可再生能源微电网储能配置,促进分布式能源的发展。从电动汽车无序充电对电网的影响入手,分析了目前有序充电控制的优化目标及控制策略,介绍了电动汽车与新能源的协同优化,总结了目前存在的问题,可以对未来电动汽车规模化充电深入研究带来一定的参考价值。
The large-scale and disorderly access of electric vehicles to the power grid for charging may lead to an increase in the peak-to valley load difference and increase the instability of the power system,thus posing a serious threat to the safe operation of the power grid.At the same time,its"energy storage"function can complement with distributed energy,alleviate the impact of the intermittent and fluctuating output of distributed energy on the power grid,effectively reduce the energy storage configuration of microgrids containing a high proportion of renewable energy,and promote the development of distributed energy.This paper starts with the impact of disordered charging of electric vehicles on the power grid,analyzes the optimization objectives and control strategies of the current orderly charging control,introduces the coordinated optimization of electric vehicles and new energy,and summarizes the current problems.It can provide certain reference value for in-depth research on large-scale charging of electric vehicles in the future.
作者
陈晓彤
Chen Xiaotong(School of Electric Power,North China University of Water Resources and Electric Power,Zhengzhou 450011,China)
出处
《机电工程技术》
2023年第4期136-140,共5页
Mechanical & Electrical Engineering Technology
关键词
电动汽车
充电
优化目标
控制策略
分布式能源
electric vehicle
charging
optimization target
control strategy
distributed energy
