大规模储能中混合型超级电容器单体失效特征参数研究

项目名称： 大规模储能中混合型超级电容器单体失效特征参数研究

项目编号： No.51207108

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电气科学与工程学科

项目作者： 韦莉

作者单位： 同济大学

项目金额： 24万元

中文摘要： 超级电容器是近年来迅速发展的适合于大规模储能应用的新型储能器件。目前针对超级电容器的研究热点多集中在器件材料和制备方法上，而在大规模储能应用中的基础研究相对缺乏。超级电容器单体电压较低，需要大量串联来满足储能系统的电压等级要求，若其中一个单体失效，将导致模块甚至整个储能系统无法正常工作。本课题拟对混合型超级电容器单体失效特征进行深入探讨，在对混合型超级电容器机理分析的基础上采用系统辨识的方法建立数学模型，揭示混合型超级电容器单体在各种工况下的失效特征和参数变化规律，研究失效状态诊断方法和失效判据，这对超级电容器在大规模储能领域的应用有重要意义。本课题成果将构建一套适用于混合型超级电容器的实时性好、准确性高的单体失效特征参数辨识与诊断方法，为进一步开发具有失效判断和预警机制的超级电容器智能管理系统，实现混合型超级电容器的大规模可靠使用打下基础。

中文关键词： 混合型超级电容器；大规模储能；等效模型；参数预估；

英文摘要： Supercapacitor is a new kind of energy storage device with promising prospects in the application of large-scale energy storage area. At present, the research of supercapacitor mainly focuses on material and the preparation process, but the basic research of its use in the field of large-scale energy storage is yet extremely limited. Owing to the low terminal voltage of a supercapacitor monomer, it needs large numbers of monomers in series to fulfil the voltage level requirement of energy storage system. The failure of one single cell will bring about an entire collapse of the module or even the whole energy storage system. This research will be of great significance of supercapacitors in the large-scale energy storage areas. The subject intends to study the failure characteristics of hybrid supercapacitor monomer, using methods of system identification to establish the mathematical model on the basis of analysis in the hybrid supercapacitor mechanism, reveals the failure law of hybrid supercapacitor monomer under a variety of working conditions, and develops the diagnostic methods as well as failure criteria. The achievements will develop a set of identification and diagnosis algorithm of failure characteristic parameters with high accuracy and rapid response for hybrid supercapacitor, which is critical for fu

英文关键词： hybrid supercapacitor；large scale energy storage；equivalent model；parameter estimation；