测控技术2025，Vol.44Issue(2)：45-52,8.DOI:10.19708/j.ckjs.2024.12.273
基于GWO-VMD的IGBT老化状态应力波分析
Stress Wave Analysis of IGBT Aging State Based on GWO-VMD
摘要
Abstract
Based on the aging failure problem of insulated gate bipolar transistor(IGBT)devices,an IGBT ag-ing status evaluation method using grey wolf optimizer(GWO)algorithm to optimize variational mode decompo-sition(VMD)algorithm is proposed.Firstly,the GWO algorithm is used to determine the optimal combination of modal decomposition number K and penalty factor α of the VMD algorithm with the minimum envelope entropy as the fitness function.Then,the IGBT stress wave signal is decomposed into several intrinsic mode function(IMF)components by the VMD algorithm based on the optimal parameter combination[K,α].Finally,the fea-ture extraction and analysis of each modal component of signal decomposition are carried out.The results of stress wave test based on IGBT power cycling platform shows that the proposed method can effectively extract the IGBT aging characteristics,and the kurtosis characteristics of the IGBT stress wave change significantly,which can characterize the aging degree of IGBT.关键词
绝缘栅双极晶体管/应力波/状态评估/变分模态分解Key words
IGBT/stress waves/state assessment/VMD分类
计算机与自动化引用本文复制引用
张超峰,康文,张宏,李孟川,袁嫚,李祺颖,何赟泽..基于GWO-VMD的IGBT老化状态应力波分析[J].测控技术,2025,44(2):45-52,8.基金项目
国家电网有限公司科技项目(5216A324000V) （5216A324000V）
