| 引用本文: | 陈丽丹,欧阳慧林.考虑用车紧急度的电动汽车充放电模糊逻辑控制策略[J].电力自动化设备,2020,40(5): |
| CHEN Lidan,OUYANG Huilin.Fuzzy logical control strategy of EV charging/discharging considering perceived urgency[J].Electric Power Automation Equipment,2020,40(5): |
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| 摘要: |
| 针对电动汽车(EV)实时充放电控制问题，提出一种基于模糊逻辑控制的分布式EV充放电功率实时控制方法。根据EV当前时间所需补充的电量和剩余停车时间内可获得的最大充电量关系建立用车紧急度模型；由节点预设参考电压和实际测量电压获得当前时刻的节点电压偏差量；考虑用车紧急度、节点电压偏差和实时电价3个因素设计EV的实时充放电功率模糊逻辑控制器，并提出基于中位数-平均绝对离差的实时电价模糊化方法；与无序充电、平均充电功率控制、随机控制策略进行对比仿真分析，验证所提方法能保证节点电压运行在控制水平范围，并能有效削峰填谷，降低网络损耗和用户成本。 |
| 关键词: 电动汽车 用车紧急度 模糊逻辑控制 充放电功率 实时电价 |
| DOI：10.16081/j.epae.202004018 |
| 分类号:U469.72 |
| 基金项目:国家留学基金资助项目(201708440511)；东莞电力专项电网规划选址选线研究项目(031900QQ00170002) |
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| Fuzzy logical control strategy of EV charging/discharging considering perceived urgency |
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CHEN Lidan1, OUYANG Huilin2
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1.School of Electrical Engineering, Guangzhou College of South China University of Technology, Guangzhou 510800, China;2.Dongguan Electric Power Design Institute, Dongguan 523413, China
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| Abstract: |
| Aiming at the real-time charging/discharging control problem of EVs(Electric Vehicles),a real-time control method for charging/discharging power of distributed EVs based on fuzzy logical control is proposed. The perceived urgency model is established based on the relationship between the needed energy of EVs at the current time and the maximum available charging energy during the remaining parking time. The node voltage deviation at current time is obtained according to the preset reference voltage of the node and the actual measured voltage. The fuzzy logical controller of EVs’ real-time charging/discharging power is designed by considering the perceived urgency, the node voltage deviation and the real-time electricity price, and a fuzzification method of real-time electricity price based on median-average absolute dispersion is proposed. Compared with the disordered charging control strategy, the average charging power control strategy and the random control strategy, simulation analysis is carried out to verify that the proposed method can ensure the node voltage within the control level range, realize peak load shifting effectively and reduce network loss and user cost. |
| Key words: electric vehicles perceived urgency fuzzy logical control charging/discharging power real-time electricity price |
