面向电力系统灵活性的电动汽车控制策略

doi:10.19595/j.cnki.1000-6753.tces.210515

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摘要随着碳中和目标的不断推进,我国可再生能源消纳面临的形势会更加严峻,亟须挖掘更多的电力系统灵活性调节资源。电动汽车作为一种新型可变负荷,能够通过与电网的互动增强电力系统的灵活性,保障系统的经济安全运行。该文针对现阶段缺乏面向电力系统灵活性的电动汽车充放电控制研究的现状,对面向电力系统灵活性的电动汽车控制策略进行研究。给出电力系统和电动汽车的灵活性定义,设计了“最大可提供灵活性计算—电力系统灵活性需求计算—电动汽车灵活性控制”的灵活性调度方案,以充分挖掘电动汽车的灵活性调节潜力,促进可再生能源消纳。算例分析表明,该文提出的电动汽车灵活性控制策略能够极大地改善电力系统的灵活性,同时该文模型的求解时间为秒级,完全可以满足电力系统地实时灵活性调度需求。

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关键词 ：电力系统灵活性, 电动汽车, 充放电控制, 实时调度

Abstract：With the advancement of the carbon neutrality goal, the renewable energy consumption situation in China will become more severe. There is an urgent need to tap more power system flexibility resources. As a new type of variable load, electric vehicles can enhance the flexibility of the power system through interaction with the grid, and ensure the economic and safe operation of the system. In view of the current lack of research on the charging and discharging control of electric vehicle oriented to power system flexibility, this paper studies the control strategy of electric vehicles oriented to power system flexibility. Given the definition of the flexibility of the power system and electric vehicles, a flexibility dispatch scheme of "calculation of the maximum available flexibility-calculation of power system flexibility demand- flexible control of electric vehicle" is designed to fully tap the flexibility adjustment potentials of electric vehicles to promote the consumption of renewable energy. The analysis of case study demonstrates that the flexible control strategy of electric vehicles proposed in this paper can greatly improve the flexibility of the power system. At the same time, the solution time of the model in this paper is in the order of seconds, which can fully meet the real-time flexibility dispatch requirements of the power system.

Key words： Power system flexibility electric vehicles charging and discharging control real-time dispatch

收稿日期: 2021-04-15

PACS:

TM714

基金资助:国家自然科学基金资助项目（51725701,51861145406）

通讯作者: 李春燕女,1975年生,副教授,博士生导师,研究方向为电力需求侧管理、电力系统分析与计算等。E-mail：lcycqu@cqu.edu.cn

作者简介: 姚一鸣男,1997年生,博士研究生,研究方向为电力系统灵活性、综合能源系统等。E-mail：yao_cqu@163.com

引用本文:

姚一鸣, 赵溶生, 李春燕, 燕智超, 谢开贵. 面向电力系统灵活性的电动汽车控制策略[J]. 电工技术学报, 2022, 37(11): 2813-2824. Yao Yiming, Zhao Rongsheng, Li Chunyan, Yan Zhichao, Xie Kaigui. Control Strategy of Electric Vehicles Oriented to Power System Flexibility. Transactions of China Electrotechnical Society, 2022, 37(11): 2813-2824.

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