为提高电力机车通风系统设计的准确性和合理性,利用数值仿真计算和传统经验相结合的方法对交流传动快速客运电力机车通风系统(重点对牵引电机通风系统和机械间微正压控制)进行了设计计算。根据计算结果提出优化建议,并将计算数据与试验验证数据进行比较,得出设计数据的修正系数。结果表明,采用Fluent软件既可以优化通风系统的设计,又可以缩短设计周期,降低试验费用。 In order to improve the accuracy and rationality of the design of electric locomotive ventilation system, the ventilation system of AC Passenger Locomotive (focusing on the traction motor ventilation system and the mechanical positive pressure control) is carried out by the combination of numerical simulation and traditional experience The design calculation. According to the calculation results, the optimization suggestion is put forward, and the calculated data is compared with the experimental verification data to get the correction coefficient of the design data. The results show that the use of Fluent software can optimize the ventilation system design, but also can shorten the design cycle and reduce test costs.