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随着列车用电设备的不断增多,列车供电系统的热损耗越来越大。为了检验列车供电系统的冷却设备能否满足性能需求,利用Icepak软件,采用有限体积法和零方程湍流模型,通过求解三维N-S方程和三维温度场模型计算,得到了机车变压器、变流模块的温度分布及柜体内部的流场分布。通过试验发现,仿真与试验结果的温度分布一致,且单点温度仿真与试验结果的差值也在误差允许范围内。
With the continuous increase of train electrical equipment, the heat loss of train power supply system is getting bigger and bigger. In order to verify whether the cooling equipment of the train power supply system can meet the performance requirements, using Icepak software, the finite volume method and the zero-equation turbulence model were used to calculate the three-dimensional Navier-Stokes equations and the three-dimensional temperature field model. Distribution and flow distribution within the cabinet. It is found through experiment that the temperature distribution between the simulation and test results is consistent, and the difference between single-point temperature simulation and test results is also within the allowable range of error.