基于Flotherm的大功率IGBT散热器设计与仿真  

Design and simulation of high-power IGBT radiator based on Flotherm

作　　者：李超[1] 徐志书[1] 姜迪开[1] 

机构地区：[1]北京精密机电控制设备研究所,北京100000

出　　处：《现代机械》2017年第3期60-63,共4页Modern Machinery

摘　　要：在伺服控制驱动领域,要求绝缘栅双极型晶体管(IGBT)散热器结构紧凑,安装空间有限,同时要求大功率输出且长时稳定工作。为解决问题,设计了一种兼具风冷和水冷的散热器,并利用Flotherm软件对IGBT元件和完整的散热器建立高质量的仿真模型,通过软件仿真计算得到了该散热器翅片槽和水冷管道的流速分布、IGBT元件和散热器的温度分布。同时,利用仿真结合工程实际经验,针对风冷散热翅片参数及水冷管道的布置,进行了优化设计。最终对比仿真结果与实验数据的相对误差在5%以内。In the servo drive system, it is required that the insulated gate bipolar transistor （IGBT） radiator is compact, meanwhile it can output high power and work stably for a long time. So a radiator that can achieve both air cooling and water cooling was designed. The simulation models of the whole radiator and IGBT components were established using Flotherm software. The velocity distribution of fin and water cooling pipe of radiator and the temperature distribution of the IGBT com- ponents and the radiator were obtained through simulation. The parameters of air cooling fin and the layout of the water cool- ing pipe were optimized. The relative error between the simulation results and the experimental data is less than 5%.

关 键 词：IGBT 风冷 水冷 散热器 热仿真 优化 

分 类 号：TM464[电气工程—电器]