规模化EV充电与风力/火电发电系统协调运行

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摘要新能源的迅速发展对电网运行提出了新的挑战,由于调峰能力不足,风电无法全额并网。电动汽车（EV）充电负荷作为可控负荷,为改善系统运行提供了契机。为确定规模化EV充电与风力/火电发电系统的协调运行机制,本文以电网和用户为主体,建立了两段式优化控制模型：在用户侧确立了针对不同用户的差异充电策略,以优化EV充电负荷；在电网侧建立了包含经济性、污染物排放和弃风量的多目标动态清洁调度模型,以优化火电机组出力。针对多目标微分进化（MODE）在初始化、拥挤度计算和参数控制中的不足,采用了正交初始化、改进距离计算和参数自适应控制；对含大型风电并网的10机系统进行仿真计算,确定了规模化EV充电与风力/火电发电系统协调运行机制,并分析了EV规模和备用对系统运行的影响。

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	刘文霞
	赵天阳
	邱威
	张建华

关键词 ：电动汽车, 充电负荷, 风电, 动态环境调度, 改进微分进化算法

Abstract：The rapid development of renewable energy poses new challenges to the operation of the grid wind power can not be fully used due to the lack of peak-load regulation capacity and so on. And the electric vehicle charging as controllable provides the opportunity to improve the grid operation. A two-stage control mechanism based on grid and EV users is proposed to determine the coordinated program between large-scale EV charging and wind-thermal system. At the user side,different charging strategies for different users are established to optimize EV charging. At the grid side,a dynamic environmental dispatch model including economy,emission and wind-power abandoned is proposed to optimize outputs of the thermal units. The orthogonal initialization,improved crowd distance calculation and self-adaptive parameter control are put forward due to the weakness existing in the multi-objective differential evolution. Simulations are done in a system containing 10 thermal units and large-scale wind-power system,the coordinated program is determined,and impacts of EV scale and reserve on the operation are also analyzed.

Key words： Electric vehicle charging load wind power dynamic environmental dispatch enhanced differential evolution algorithm

收稿日期: 2011-04-22 出版日期: 2013-12-11

PACS:

TM73

基金资助:国家科技支撑计划重大项目（2011BAG02B14）和国家高技术研究发展计划（863计划）（2011AA05A109）资助项目。

引用本文:

刘文霞，赵天阳，邱威，张建华. 规模化EV充电与风力/火电发电系统协调运行[J]. 电工技术学报, 2013, 28(5): 49-57. Liu Wenxia,Zhao Tianyang,Qiu Wei,Zhang Jianhua. Coordinated Operation of Large Scale Electric Vehicles Charging with Wind-Thermal Power System. Transactions of China Electrotechnical Society, 2013, 28(5): 49-57.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2013/V28/I5/49

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