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电力大数据:2019,22(8):-
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电动汽车参与电网AGC的充放电优化控制研究
(国网江西省电力有限公司吉安供电分公司)
Research on Optimal Charge and Discharge Control of Electric Vehicle Participating in AGC of Power Grid
guo jing ren1,2,3, he li na4,2,3
(1.state grid ji''2.''3.an power supply company;4.state grid ji'')
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本文已被:浏览 12次   下载 27
投稿时间:2019-05-28    修订日期:2019-06-10
中文摘要: 电动汽车的大规模接入对电网的稳定与控制带来了新的挑战。电动汽车接入电网,可作为分布式储能单元与传统AGC机组相协调配合,可有效协助电网调频和实现节能减排。在现有研究基础之上,考虑电池荷电状态对电池最大充放电功率的影响、电池寿命及电动汽车用户行驶需求,以及SOC对电池最大充/放电功率的影响。文章首先阐述了电动汽车参与电网AGC的控制体系结构与充放电控制方案。其次,探讨了多电动车参与电网AGC的充放电过程的功率分配的协调问题、解决方案及相关约束条件的建立。最后对电动汽车参与两区域互联电网的AGC进行了模拟仿真。仿真结果表明:通过文章所提方法,能够实现电动汽车合理的功率分配和有效的利用,以更好的提高系统稳定性和实现节能减排。
Abstract:The large-scale access of electric vehicles brings new challenges to the stability and control of power grid. Electric vehicles connected to the grid can be used as distributed energy storage units to coordinate with traditional AGC units, which can effectively assist the grid frequency modulation and achieve energy saving and emission reduction. Based on the existing research, considering the impact of battery charging status on the maximum battery charging and discharging power and the driving demand of electric vehicle users,and the effect of SOC on the maximum charge / discharge power of the battery. This paper first elaborates the control architecture of electric vehicle participating in grid AGC and charge and discharge control scheme. Secondly, the coordination problem, solution and related constraints of multi-electric vehicles participating in the charging and discharging process of power grid AGC are discussed. Finally, the simulation of the AGC of the electric vehicle participating in the two-area interconnected power grid is carried out. The simulation results show that the proposed method can achieve reasonable power distribution and effective utilization of electric vehicles, so as to improve system stability and achieve energy saving and emission reduction.
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