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针对研制的30 t大轴重货运机车辅助变流柜中,风冷大功率模块的功率器件IGBT在开关过程中产生大量的热量,采用合适的冷却系统将产生的热量有效散发出去,保证产品和系统可靠、稳定地工作。通过理论计算,采用Fluent软件对功率模块散热器全域温度场分析相结合的方式,对散热器性能加以验证和调整,使散热效果达到最佳,满足系统要求,同时大大缩短开发周期,并能有效降低研发成本。
For the 30t large axle load freight locomotive auxiliary converter cabinet, the IGBT of the power device of the air-cooled high-power module generates a large amount of heat in the switching process, and the heat generated by the suitable cooling system is effectively distributed to ensure that the product System reliable, stable work. Through theoretical calculation, Fluent software is used to analyze the global temperature field of power module radiator, and the performance of the radiator is verified and adjusted so as to achieve the best heat dissipation effect, meet the system requirements, greatly shorten the development cycle and be effective Reduce R & D costs.