电动车用超级电容器热行为分析

Thermal performance of supercapacitors in electric vehicles

超级电容器是一种新型的储能元件,其性能与温度有着紧密的联系,温度过高会带来一系列不良后果。借助ANSYS有限元分析软件对超级电容器进行模型的建立以及温度场的模拟。通过分析不同工况下超级电容器的温度变化,研究影响超级电容器电源温度变化及水平的几何参数与运行参数。结果表明,超级电容器各方向几何尺寸、各面换热情况、电流强度以及环境温度均对其温度变化和水平有较大影响。

The supercapacitor was a novel energy storage device. The performance of the supercapacitor was closely linked with its temperature. A series of adverse consequences were brought by high temperature. Supercapacitor modeling and the simulation of its temperature field were undertaken with the ANSYS finite element analysis software. The analysis of supercapacitor temperature under different conditions was undertaken to study the levels of the geometric parameters and operating parameters that impact the temperature of supercapacitor. The results show that changes in all directions of the supercapacitor geometry, the heat transfer of each surface, current and ambient temperature have a great impact on the temperature.