无轨电车超级电容散热系统研究

Research on super capacitor heat dissipation system of trolley bus

文章对无轨电车超级电容系统的散热结构进行了相关研究,提出了一种全新的通风散热解决方案。首先,研究了超级电容系统的发热原理,建立了超级电容模组三维稳态传热模型;然后,基于ANSYS Workbench软件对该模型进行仿真计算,得到的结果与试验数据基本一致;最后,提出针对该模型的通风散热设计方案。仿真结果表明,超级电容系统的各个模组温度下降了1 ℃左右,模组间最大温度差为2 ℃,较好地保证了超级电容工作温度的一致性,确保了超级电容系统较好地运行在无轨电车的应用中。

In this paper,the heat dissipation structure of super capacitor system is studied,and a new solution to the heat dissipation problem is proposed.First of all,the heating principle of the super capacitor system is studied,and the three-dimensional steady thermal transfer model is established.Then,based on the ANSYS Workbench software,the model is simulated and calculated,and the result is basically consistent with the test data.Finally,the design of the ventilation and heat dissipation for the model is put forward.The simulation results show that the temperature of each module of the super capacitor system is reduced by about 1 ℃,and the maximum temperature difference is less than 2 ℃ among the capacitors,which ensures the consistency of the capacitors’ working temperature and proves the super capacitor system work substantially well.