文星,杜明星.一种新型的基于Vce-on的IGBT模块结温实时估测法*[J].电测与仪表,2018,55(19):106-111. Wen Xing,Du Mingxing.A Novel Real-time Estimation Method of Junction Temperature Using on-State Vce-on for IGBT Module[J].Electrical Measurement & Instrumentation,2018,55(19):106-111.
一种新型的基于Vce-on的IGBT模块结温实时估测法*
A Novel Real-time Estimation Method of Junction Temperature Using on-State Vce-on for IGBT Module
a novel method for real-time estimation of the junction temperature using on-state Vce-on is proposed in this paper. The dependence of temperature on the Vce-on in IGBT module is analyzed firstly, and the parameters of the interconnection materials are extracted using simulation software, which greatly reduces the experimental cost and the operation is easier. Most importantly, the influence of interconnection material resistance on IGBT module is fully taken into account , and compensation is given. Finally, this paper proves the validity of the method by comparing the measurement results by infrared camera with the estimation results by proposed method.