| 摘要: |
| 针对目前CRH2型高速动车机组变流器中所用的大功率IGBT模块，本文设计了4种动车组牵引变流器用高效散热器，通过应用FLUENT对设计的4种散热器模型进行CFD模拟,综合分析对比模拟结果,确定出cha－30×10为其中性能最优的散热器模型,对性能最优的模型进行二次优化，综合判定最优方案为160°折角散热器，并得到了散热器最高温度、最大热阻、压降和冷却液入口流量的关系。仿真结果表明:在入口质量流量为0.1kg/s 的工况下，cha－30×h0(160°)散热器最高温度比shun－20×10降低3K、最大热阻减小7.8％。 |
| 关键词: 散热器 绝缘栅双极型晶体管(IGBT) 数值模拟 性能系数 |
| DOI： |
| Received:June 27, 2020Revised:September 30, 2020 |
| 基金项目: |
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| Design of High Efficiency Cooler for IGBT Module in CRH2 |
|
Gao Feng1,2, Zhang Yi3, Pan Xiaoyan3
|
| (1.National Virtual Simulation Experimental Teaching Center for Building EnergySchool of Environmental and Energy Engineering;2.Beijing University of Civil Engineering and Architecture;3.School of Environmental and Energy Engineering， Beijing University of Civil Engineering and Architecture) |
| Abstract: |
| For the high-power insulated gate bipolar translator (IGBT) module, which is presently used in the converter of CRH2, four types of high-efficiency cooler for the traction converter of CRH2 were designed. Using FLUENT to simulate four types of cooler models and comprehensively analyzing and comparing the simulation results, cha-30×10 was determined to be the best cooler model, and the optimal model was quadratically optimized. The optimal scheme was determined to be the 160° cooler, and the relationship between the maximum temperature, maximum thermal resistance, pressure drop, and the flowrate of coolant was obtained. With an inlet mass flow rate 0.1 kg/s, the simulation results show that the maximum temperature of the cha-30×10 (160°) cooler is 3 K lower than that of shun- 20×10, and the maximum thermal resistance is 7.8% lower than that of shun-20×10. |
| Key words: radiator insulated gate bipolar translator(ICBT) numerical simulation cofficient of performance |
