高电压技术2026，Vol.52Issue(9)：4041-4059,19.DOI:10.13336/j.1003-6520.hve.20260636
高压功率模块有机硅凝胶封装绝缘失效与电-热性能协同调控研究综述
Review of Insulation Failure and Electro-thermal Performance Coordination of Silicone-gel Packaging Insulation in High-voltage Power Modules
摘要
Abstract
High-voltage power modules in converter equipment are subjected to long-term combined stresses,including high electric fields,high temperatures,and high dU/dt,making packaging insulation failure a critical issue for reliable op-eration.This paper reviews the failure mechanisms and coordinated regulation of electro-thermal performance in silicone-gel packaging insulation and its gel-solid interfaces,as well as electro-thermal coordinated regulation.The typical packaging structures of high-voltage power modules and insulation condition sensing methods are summarized.Then,the material properties and initial insulation state of silicone-gel packaging insulation are reviewed,followed by an analysis of high-temperature degradation and interfacial deterioration,as well as the aging-induced evolution of the electrical,thermal,and mechanical properties of insulating materials.The development mechanisms of partial discharge,gel-solid interfacial discharge,and electrical treeing under coupled multi-stress conditions are further discussed.On this basis,re-cent advances in local electric-field regulation,thermal-conductivity enhancement,and electro-thermal performance optimization are comparatively analyzed.Finally,future research directions are proposed in terms of quantitative fail-ure-path modeling,multi-parameter condition sensing and lifetime assessment,electro-thermal coordinated design,and evaluation under realistic service conditions.This review provides reference for understanding insulation failure mecha-nisms,optimizing packaging materials,and improving the reliability design of packaging insulation in high-voltage power modules.关键词
高压功率模块/封装绝缘/有机硅凝胶/局部放电/电-热协同调控Key words
high-voltage power module/package insulation/silicone gel/partial discharge/electro-thermal coordinated regulation引用本文复制引用
李先锋,王娈珺,王伟,刘欣和,王彦峰,王健,李庆民..高压功率模块有机硅凝胶封装绝缘失效与电-热性能协同调控研究综述[J].高电压技术,2026,52(9):4041-4059,19.基金项目
智能电网国家科技重大专项(2025ZD0805300).Project supported by Smart Gird-National Science and Technology Major Project(2025ZD0805300). （2025ZD0805300）
