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题名	超级电容器建模及其热性能研究; 超级电容器建模及其热性能研究
作者	1祁新春,电工研究所
学位类别	博士
答辩日期	2010-01-05
授予单位	中国科学院电工研究所
导师	1齐智平,电工研究所
关键词	超级电容器 建模 热行为 热管理
其他题名	超级电容器建模及其热性能研究
中文摘要	超级电容器作为一种新型的储能元件，有着广阔的应用前景。超级电容器建模和性能研究一直是超级电容器研究的热点之一。针对目前超级电容器建模及其热性能研究中存在的问题，本文对对称型超级电容器的建模、非对称型超级电容器建模、超级电容器充放电热行为分析及超级电容器组热管理等方面进行了深入的研究分析。 在深入分析对称型超级电容器模型的基础上，本文提出了一种新的对称型超级电容器模型，并且提出了新的相应的模型参数算法，该算法可以大大节省确定模型参数所用的时间。针对非对称型超级电容器建模比较困难的问题，本文通过正负电极分别建模的方法提出了非对称型超级电容器的模型以及模型参数辨识方法。针对上述两种模型，本文分别进行了实验验证。 针对超级电容器充放电过程中的发热现象，本文对非对称型超级电容器充放电时的热行为进行了研究。首先提出非对称型超级电容器的三维热模型，然后分别对非对称型超级电容器充放电时的瞬态温度场、稳态温度场进行了仿真和实验研究。 针对大功率充放电时超级电容器发热比较严重的问题，本文有针对性地研究了对称型超级电容器组在大功率充放电时的温度场，提出了超级电容器组热管理的概念，并提出了超级电容器组热管理系统的设计方法。 以超级电容器储能系统成本最低为目标，本文提出了一种恒功率放电时超级电容器的选型算法，该算法能够根据所要设计超级电容器储能系统的最高电压、最低电压、放电功率以及放电时间，给出推荐的超级电容器型号、以及串联支路数和并联支路数，将该算法编制形成软件，大大节省了设计系统的时间。 结合基于超级电容器的电机节能系统，首先应用所提选型方法进行了选型；然后根据选型方法所用的RC模型较为粗略的特点，利用所建立的精确数学模型进行了校验；最后综合运用所提的热模型、热管理概念详细设计了热管理系统。实验结果表明这一措施具有很好的散热效果。 The supercapacitor is one kind of new energy storage device, which has the broad application prospect. The supercapacitor modeling and the performance analysis are always hot spots of the supercapacitor research. In view of the current supercapacitor modeling and its performance, several hot spots of symmetry supercapacitor modeling, asymmetrical supercapacitor modeling, thermal behavioral of the supercapacitor and thermal management of supercapacitor bank during charging and discharging are mainly studied in this thesis. By In-depth analyses of symmetry supercapacitor model, a new symmetry supercapacitor model was proposed and a new identification algorithm for corresponding model parameters was introduced in this thesis, which may greatly reduce the calculation time of model parameters; but the asymmetrical supercapacitor modeling is more difficult, a new asymmetrical supercapacitor model and identification algorithm of the model parameters are also put forward. Finally, the above-mentioned two kinds of models are verified by experimental measurement and numerical simulation results. During the course of charging and discharging, supercapacitor will generate heat. The thesis has conducted the research on thermal behavior of the asymmetrical supercapacitor during charging and discharging as follows: Firstly, the thesis processed three dimensional thermal model of the asymmetrical supercapacitor, secondly, the transient and the stable state temperature fields of the asymmetrical supercapacitor have separately carried on the simulations and the experimental studies during charging and discharging. The supercapacitor will generate more heat during the high power charging and discharging. Firstly, the thesis has studied temperature fields of the symmetry supercapacitor bank during the high power charging and discharging, secondly, thermal management of the supercapacitor bank was proposed, finally, design method of thermal management system of the supercapacitor bank was put forward. To achieve the goal of energy storage system with the lowest cost, this thesis also describes the selection algorithm for a constant power discharging. This algorithm could design the supercapacitor energy storage system according to the maximum voltage, the minimum voltage, the electric discharge power as well as the discharging time, which could give the recommendation of the supercapacitor model, as well as the series numbers and parallel branch numbers. This algorithm formed the software, which has saved the design system time greatly. Motor energy storage system based on the supercapacitor was designed as follows: Firstly, the selection algorithm was applied to carry on the selection of supercapacitor, secondly, the precise mathematical model was used to verify the system because the basis selection algorithm using a RC model is rough, finally, the thermal model and the thermal management concept are synthesized, the thermal management system was designed in detail. The experimental results indicated this measure has achieved the very good cooling effect.
语种	中文
公开日期	2010-10-18
页码	107
内容类型	学位论文
源URL	[http://ir.iee.ac.cn/handle/311042/6794]
专题	电工研究所_其他部门_其他部门_博士学位论文
推荐引用方式 GB/T 7714	1祁新春,电工研究所. 超级电容器建模及其热性能研究, 超级电容器建模及其热性能研究[D]. 中国科学院电工研究所. 2010.

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