超级电容储能系统二阶模型的改进及实验研究
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摘要
针对超级电容模型精度的问题,提出一种改进的超级电容模型,采用并网二阶等效模型,在并联支路中加入一个电压源以校正电压对电容容量的影响。采用实际超级电容器元件进行恒流充电实验以获取模型参数和实测数据。Matlab仿真模型实测结果表明,改进的二阶模型更加贴合实测模型数据,相对于传统模型具有更高的精度、更准确的动态特性。
In order to improve the accuracy of the super capacitor model,an improved super capacitor model is proposed.A grid-connected second-order equivalent model is adopted and a voltage source is added to its parallel branch to correct the effect of the voltage on the capacitance of capacitor. A constant current charging experiment was conducted with the actual supercapacitor elements to obtain model parameters and actually-measured data. The results from the Matlab simulation model and actual measurement show that the improved second-order model data fits the actually-measured model data more accurately,and the model has higher precision and more accurate dynamic characteristics in comparison with the traditional model.
In order to improve the accuracy of the super capacitor model,an improved super capacitor model is proposed.A grid-connected second-order equivalent model is adopted and a voltage source is added to its parallel branch to correct the effect of the voltage on the capacitance of capacitor. A constant current charging experiment was conducted with the actual supercapacitor elements to obtain model parameters and actually-measured data. The results from the Matlab simulation model and actual measurement show that the improved second-order model data fits the actually-measured model data more accurately,and the model has higher precision and more accurate dynamic characteristics in comparison with the traditional model.
引文
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[2]李月.超级电容储能系统的研究[D].北京:北京交通大学,2015.LI Yue.Research on the energy storage system of super capacitor[D].Beijing:Beijing Jiaotong University,2015.
[3]JABBOUR N,MADEMLIS C.Super capacitor-based energy recovery system with improved power control and energy management for elevator applications[J].IEEE transactions on power electronics,2017,32(12):9389-9399.
[4]毛嘉萌,王君艳.超级电容在双电源电动车中的应用研究[J].现代电子技术,2015,38(10):144-147.MAO Jiameng,WANG Junyan.Application of ultra-capacitor in electric vehicles with dual power source[J].Modern electronics technique,2015,38(10):144-147.
[5]廖川平.超级电容电池[J].化学通报,2014,77(9):865-871.LIAO Chuanping.Super capacitor battery[J].Chemistry bulletin,2014,77(9):865-871.
[6]SHAH V A,KUNDU P,MAHESHWARI R,et al.Improved method for characterization of ultracapacitor by constant current charging[J].International journal of modeling and optimization,2012,2(3):290-294.
[7]CONWAY B E,PELL W G.Power limitations of supercapacitor operation associated with resistance and capacitance distribution in porous electrode devices[J].Journal of power sources,2002,105(2):169-181.
[8]孙雷.超级电容的原理及应用研究[J].科技信息,2013(34):1-2.SUN Lei.The principle and application research of super capacitor[J].Science&technology information,2013(34):1-2.
[9]SIMON P,GOGOTSI Y,DUNN B.Where do batteries end and supercapacitors begin?[J].Science,2014,343(6176):1210-1211.
[10]孙野,韩如成,智泽英.基于超级电容的静止无功补偿器的研究[J].现代电子技术,2012,35(12):139-142.SUN Ye,HAN Rucheng,ZHI Zeying.Study on super capacitor based on STATCOM[J].Modern electronics technique,2012,35(12):139-142.
[11]单金生,吴立锋,关永,等.超级电容建模现状及展望[J].电子元件与材料,2013,32(8):5-10.SHAN Jinsheng,WU Lifeng,GUAN Yong,et al.Review and expectation of modeling research on supercapacitor[J].Electronic components&materials,2013,32(8):5-10.