引用本文:黄鹤,肖飞,杨国润,麦志勤.基于充放电滞回特性的超级电容参数提取方法[J].电力自动化设备,2022,42(3):
HUANG He,XIAO Fei,YANG Guorun,MAI Zhiqin.Parameter extraction of supercapacitor based on charging and discharging hysteresis characteristics[J].Electric Power Automation Equipment,2022,42(3):
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基于充放电滞回特性的超级电容参数提取方法
黄鹤1,2, 肖飞1, 杨国润1, 麦志勤1
1.海军工程大学 舰船综合电力技术国防科技重点实验室,湖北 武汉 430033;2.中国船舶集团第七一一研究所,上海 201108
摘要:
准确提取参数对超级电容储能系统安全、可靠、高效运行具有重要意义。为克服测试系统复杂、有效数据点少、在线提取困难等问题,提出一种通过补偿内阻消除平衡充放电滞回差异的超级电容参数提取方法。该方法充分利用超级电容在充放电过程中由内阻压降引起的容值-端电压曲线不重合的物理特性,从充放电过程的所有数据中准确提取参数,可有效排除动态过程对参数提取精度的影响。理论分析与实验研究表明所提方法能在不同温度与电流条件下准确提取超级电容的等效参数,可为系统性能测试、优化控制以及高效运维提供有效支撑。
关键词:  超级电容  参数提取  滞回特性  充放电过程
DOI:10.16081/j.epae.202203008
分类号:TM53
基金项目:国家自然科学基金资助项目(51907199)
Parameter extraction of supercapacitor based on charging and discharging hysteresis characteristics
HUANG He1,2, XIAO Fei1, YANG Guorun1, MAI Zhiqin1
1.National Key Laboratory for Vessel Integrated Power System Technology, Naval University of Engineering, Wuhan 430033, China;2.Shanghai Marine Diesel Engine Research Institute, Shanghai 201108, China
Abstract:
Parameter extraction is important for the safe, reliable and efficient operation of supercapacitor energy storage system. In order to overcome the problems such as complexity, few effective data and difficult online extraction, a parameter extraction method of supercapacitor is proposed by compensating the internal resistance to eliminate the hysteresis difference during balanced charging and discharging process. The method fully uses the physical characteristics that the curves of supercapacitor capacitance vs. terminal voltage are not coincident due to the internal resistance voltage drop during the charging and discharging process, so as to accurately extract the parameters from all the data in charging and discharging process, which can effectively eliminate the influence of dynamic process on parameter extraction accuracy. Theoretical analysis and experimental study show that the proposed method can extract the equivalent parameters of supercapacitor under the conditions of different temperatures and currents, providing the effective support for system performance test, optimal control, and efficient operation and maintenance.
Key words:  supercapacitor  parameter extraction  hysteresis characteristics  charging and discharging process

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