电工技术学报2018，Vol.33Issue(7)：1440-1449,10.DOI:10.19595/j.cnki.1000-6753.tces.161234
一种IGBT模块端口等效耦合热阻抗的离散化方波提取法
A Discrete Square Wave Extraction Method for the Port Equivalent Coupled Thermal Impedance of IGBT Modules
摘要
Abstract
On the background of insulate gate bipolar transistor (IGBT) reliability research, this paper aims at the shortage of current thermal modeling and the extraction method of coupled thermal impedance of IGBT modules, a new discrete square wave method to extract the coupled thermal impedance between IGBT and freewheeling diode (FWD) is proposed. Based on the principle of junction temperature measurement via thermo-sensitive electrical parameters (TSEP) and the response characteristics of the thermal network, the internal thermal behavior of IGBT can be established by the measurement of the port TSEP. The IGBT module are regarded as a black box, thus the proposed extraction method can be universally applicable to a variety of internal packaging structure module. Finally, the validity and the precision of the proposed method is verified through experiment.关键词
IGBT/耦合热阻抗/电热敏参数/离散化方波Key words
IGBT/coupled thermal impedance/electro-thermal parameters/discrete square wave分类
信息技术与安全科学引用本文复制引用
蔡杰,周雒维,彭英舟,孙鹏菊,杜雄..一种IGBT模块端口等效耦合热阻抗的离散化方波提取法[J].电工技术学报,2018,33(7):1440-1449,10.基金项目
国家自然科学基金重点项目(51137006)和国家自然科学基金(51577020))资助. （51137006）
