大功率IGBT仿真建模及其应用

Modeling and Application of High Power IGBT

大功率IGBT模块成本较高且容易损坏,在使用时需对其及相关电路进行仿真以考察其电应力,但电力电子仿真软件缺少对此类IGBT模块的模型支持。采用Saber的IGBT1建模工具建立了FZ600R17KE4仿真模型,并参照其数据手册参数,对模型静态特性、门极电荷特性及动态特性进行对比,模型与数据较好匹配。同时,将该器件应用于4单元IGBT串联阀臂,通过设计相应门极驱动保护单元(GDU),并将其应用在脉冲环境中,进行了脉冲放电均压测试。基于已建立模型进行了电路仿真,仿真与实验结果基本一致。

It is necessary to simulate the electrical stress for the high power IGBT as its high cost and easy to dam- age.However,there is less power electronic simulation software to support such IGBT modules model.This paper builts the FZ600R17KE4 type IGBT model by the Saber IGBT1 model tool.Compared with its datasheet, it is found that the static characteristics,the gate charge characteristics and dynamic characteristics of the built model match well with the datasheet.Then,4 pieces of such IGBTs are used to design a valve arm, with own designed gate drive protection unit（GDU）,voltage-sharing performance is observed in the pulse test process.The results show that the model simulation and experimental results match very well.