电工技术学报  2019, Vol. 34 Issue (23): 5001-5013    DOI: 10.19595/j.cnki.1000-6753.tces.181477
电力系统 |
纯电动客车复合储能系统功率分配控制策略研究
周美兰1, 冯继峰1, 张宇1, 杨明亮1, 吴晓刚1,2
1. 哈尔滨理工大学电气与电子工程学院 哈尔滨 150080;
2. 清华大学汽车安全与节能国家重点实验室 北京 100084
Research on Power Allocation Control Strategy For Compound Electric Energy Storage System of Pure Electric Bus
Zhou Meilan1, Feng Jifeng1, Zhang Yu1, Yang Mingliang1, Wu Xiaogang1,2
1. College of Electrical and Electronics Engineering Harbin University of Science and Technology Harbin 150080 China;
2. State Key Laboratory of Automotive Safety and Energy Tsinghua University Beijing 100084 China
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摘要 针对复合储能系统中电池承担功率过高的问题,分别制定了逻辑门限控制和模糊控制两种功率分配控制策略。对锂电池单体进行不同倍率充放电和自放电实验,对超级电容进行恒流充放电和恒功率放电实验,基于所得实验数据采用最小二乘法进行参数辨识得到复合储能系统模型参数。在Matlab-Cruise联合仿真的环境下搭建整车模型,进而创建动态链接库,实现控制策略实时仿真。给出了锂电池单独供电、采用逻辑门限控制策略和采用模糊控制策略时的功率变化曲线、锂电池荷电状态(SOC)变化曲线以及储能系统的能量流图,并进行对比分析。仿真实验结果表明,相对于逻辑门限控制策略,采用模糊控制策略时,在中国城市道路工况中锂电池SOC提高0.162%,节省电能0.430 1kW• h。为验证所提策略的有效性,搭建了复合储能客车驱动系统实验台架。仿真和实验结果表明,所提出的复合储能系统模糊控制策略能够降低锂电池电流,有效回收制动能量。
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周美兰
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吴晓刚
关键词 纯电动客车复合储能模型构建功率分配控制策略    
Abstract:Given the excessive battery power in the composite energy storage system, two power allocation control strategies were developed, namely, the logic threshold control strategy and fuzzy control strategy. Lithium battery cells were subject to different rates of charge and discharge and self-discharge experiments. In the study, a super capacitor was subjected to constant current charge and discharge and constant power discharge experiments. Based on the experimental data, the least squares method was used for parameter identification. The model parameters of the composite energy storage system were obtained. The vehicle model was constructed based on the Matlab-Cruise, and the dynamic link library was then created to realize real-time simulation of control strategies. The power curves, SOC curves of the lithium battery, and energy flow diagrams of the energy storage system were given when the lithium battery operated by itself, when the threshold control strategy was adopted, and when the fuzzy control strategy was adopted, and the contrast analysis was subsequently performed. The simulation results show that compared with the logic threshold control strategy, the fuzzy control strategy improves SOC of lithium battery by 0.162%, and the energy saving is 0.430 1kW·h in the urban road conditions in China. In order to verify the effectiveness of the proposed strategy, the test bench of the composite energy storage bus driving system was built. The simulation and experimental results show that proposed the fuzzy control strategy of composite energy storage system can reduce the current of lithium battery and recover braking energy effectively.
Key wordsPure electric bus    composite energy storage    model construction    power allocation    control strategy   
收稿日期: 2018-09-10      出版日期: 2019-12-11
PACS: TM912  
基金资助:国家自然科学基金(51877057)和国家重点研发计划(2018YFB0105403)资助项目
通讯作者: 张 宇 女,1984年生,博士,讲师,研究方向为复合能源电动汽车能量控制策略。E-mail:zhangyu8419@163.com   
作者简介: 周美兰 女,1962年生,博士,教授,硕士生导师,研究方向为电动汽车驱动系统控制技术。E-mail:zhoumeilan001@163.com
引用本文:   
周美兰, 冯继峰, 张宇, 杨明亮, 吴晓刚. 纯电动客车复合储能系统功率分配控制策略研究[J]. 电工技术学报, 2019, 34(23): 5001-5013. Zhou Meilan, Feng Jifeng, Zhang Yu, Yang Mingliang, Wu Xiaogang. Research on Power Allocation Control Strategy For Compound Electric Energy Storage System of Pure Electric Bus. Transactions of China Electrotechnical Society, 2019, 34(23): 5001-5013.
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