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通过有限元法仿真分析了IGBT模块中Al N衬板静态电场的分布,并对Al N衬板材料进行了局部放电评估试验。此外,进一步研究了长期的周期性热应力对IGBT模块中Al N衬板的局部放电特性的影响。
The static electric field distribution of Al N liner in IGBT module was simulated and analyzed by finite element method, and the partial discharge evaluation test of Al N liner material was carried out. In addition, the effect of long-term cyclic thermal stress on the PD characteristics of Al N-type in IGBT module was further studied.