功率器件热网络建模综述  

Survey of Thermal Network Modeling for Power Devices

作　　者：吴宇轩 黄永章 邓二平 陈杰 WU Yuxuan;HUANG Yongzhang;DENG Erping;CHEN Jie(State Key Laboratory of New Energy Power System(North China Electric Power University),Beijing 102206,China;NCEPU(Yantai)Power Semiconductor Technology Research Institute Co.,Ltd.,Yantai 264006,China)

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),北京102206 [2]华电(烟台)功率半导体技术研究院有限公司,山东烟台264006

出　　处：《电工技术》2022年第17期12-22,共11页Electric Engineering

基　　金：国家自然科学基金项目(编号52007061)。

摘　　要：功率器件结温的准确监测,对其可靠性评估、寿命预测及所处系统的优化运行方面都有至关重要的影响。相较于其他方法,热网络建模法不仅能实现结温的离线预测,而且能在一定程度上实现在线监测,因此具有广泛的应用前景。以传统热网络理论的由来为基础,归纳了近年来热网络的发展状况,梳理了热网络参数的提取方式,重点介绍了瞬态热阻抗法,并通过相应的仿真进行说明。在此基础上概述了热网络在线监测的最新进展,展望了功率器件热网络建模的未来研究方向。Accurate monitoring of the junction temperature of thepower device has a vital impact on its reliability evaluation,life prediction and optimal operation of the system in which it is located.Compared with other methods,the thermal network modeling method can realize not only the offline prediction of the junction temperature,but also its online monitoring to a certain extent,so it has a broad application prospect.Based on the origin of traditional thermal network theory,the development status of thermal network in recent years and extraction method of thermal network parameters are summarized.The transient thermal impedance method is mainly introduced and illustrated by corresponding simulation.On this basis,the latest progress of thermal network on-line monitoring is summarized,and the future research direction of thermal network modeling of power devices is prospected.

关 键 词：IGBT 热网络模型 在线监测 瞬态热阻抗法 老化监测 拟合 网络转换 

分 类 号：TM769[电气工程—电力系统及自动化]