超级电容器储能特性研究

Abstract

基于超级电容器等效电路模型,本文推导了超级电容器等效阻抗函数,研究了恒流充电时的超级电容器的储能基本特性。并结合实验方法,对超级电容器的端电压波动、容量、循环寿命、漏电流进行了广泛测量。在理论分析与实验对比的基础上,根据超级电容器的内部结构探讨了部分特性变化的理论原因,为高效应用超级电容器的储能研究提供了科学依据。

Based on equivalent circuit models of a super-capacitor,this paper has proposed an equivalent-resistance function for super-capacitors and investigated basic characteristics under constant-current charging conditions.By use of experimental testing methodology,termination voltage ripples,capacitance,cycle-lifetime and leakage current have been tested and analyzed.By comparing both theoretical and experimental results,the reason for partial characteristics variation of super-capacitor's internal structure has been investigated and discussed.These chievements are essential for some critical applications of super-capacitors.