电动汽车移动储能辅助频率控制策略的研究

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摘要大量电动汽车接入电网后, 不仅可以作为可控充电负荷存在, 也可以作为移动储能装置为电网提供服务与支持。首先分析了电动汽车参与电网频率控制的优势, 介绍了一种移动储能辅助调频系统的结构框架及工作机理。基于电力系统频率调节控制基本动态模型, 建立了电动汽车参与电网一次、二次频率调节控制的模型。在此基础上, 针对相关研究较少考虑电动汽车车辆属性的特点, 提出了计及车辆限制和用户需求的电动汽车参与电网频率调节的控制策略。该策略能够满足车辆用户用车时间和容量的个性化需求, 同时有效避免了荷电状态超限和充放电电流倍率过大对电池造成的不利影响。最后, 通过两个算例对提出的模型和控制策略进行了研究分析, 验证了模型与策略的可靠性。

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	鲍谚
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关键词 ：电动汽车, 辅助调频, 车辆限制, 用户需求, 控制策略

Abstract：Numerous EVs have been integrated in the grid, which will not only act as controllable loads, but also as mobile energy storage systems to supply ancillaryservice and support.The advantages of EVs participated frequency control are analyzed in this paper at first.A framework and its operation principle of mobile energy storage assisted frequency regulation are then introduced.Based on the basic dynamic model of frequency regulation in the power system, the models of EVs participating in the primary and secondary frequency regulation are established.Based on this, the control strategy considering the vehicle constraints and users’ demands, which have been rarely discussed by other researchers, is proposed here.This strategy can satisfy the individual demand of users’use time and capacity, avoid exceeding the state of charge (SOC)limit or damaging the battery caused by the large charge-discharge current.The proposed models and control strategy are then implemented in two case studies, and their effectiveness is verified finally.

Key words： Electric vehicle ancillary frequency regulation vehicle constraint user’s demand control strategy

收稿日期: 2014-11-04 出版日期: 2015-06-29

PACS:	TM76
	U469.72

基金资助:国家国际科技合作专项资助项目(2013DFA60930)。

通讯作者: 鲍谚男, 1982年生, 博士, 讲师, 研究方向为电动汽车与电网互动技术、智能电网与新能源发电技术。

作者简介: 鲍谚男, 1982年生, 博士, 讲师, 研究方向为电动汽车与电网互动技术、智能电网与新能源发电技术。(通信作者)贾利民男, 1963年生, 博士, 教授, 博士生导师, 研究方向为控制科学与工程、智能自动化。

引用本文:

鲍谚, 贾利民, 姜久春, 张维戈. 电动汽车移动储能辅助频率控制策略的研究[J]. 电工技术学报, 2015, 30(11): 115-126. Bao Yan, Jia Li-min, Jiang Jiu-chun, Zhang Wei-ge. Research on the Control Strategy of Electric Vehicle Mobile Energy Storage in Ancillary Frequency Regulation. Transactions of China Electrotechnical Society, 2015, 30(11): 115-126.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I11/115

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