晶闸管功率器件的可靠性研究进展  

Summary of reliability research and evaluation of thyristor power devices

作　　者：夏大伟 杜君莉 何晓宇 史书怀 张朝峰 XIA Dawei;DU Junli;HE Xiaoyu;SHI Shuhuai;ZHANG Chaofeng(State Grid Henan Power Company Henan Electric Power Research Institute,Zhengzhou 450052,China;University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]国网河南省电力公司电力科学研究院,郑州450052 [2]北京科技大学,北京100083

出　　处：《自动化与仪器仪表》2024年第7期16-21,共6页Automation & Instrumentation

基　　金：中国博士后科学基金(2021TQ0097);国网技术项目(21JS226)。

摘　　要：随着特高压直流输电技术的不断发展,提高输电系统的可靠性水平对保障我国电力和经济协调发展具有重要意义。晶闸管作为特高压直流输电系统换流阀等大容量电力电子装备中的关键器件,其长时间安全稳定运行是实现我国西电东送等重要能源战略的基础。对晶闸管的可靠性研究、退化评估、失效分析和寿命预测已经成为当下的关键工程前沿问题。系统分析了晶闸管器件发生退化和失效的起因和机理;详细阐释了几种典型的可靠性试验方法及各自对应的用于退化监测和寿命预估的评估模型,并结合具体案例强调了加速老化试验模型在可靠性研究中的重要意义。对晶闸管可靠性研究的未来发展进行了展望,提出了前沿技术交叉的研究思路。With the continuous development of UHV DC transmission technology,it is of great significance to improve the reliability level of transmission system to guarantee the coordinated development of China's electric power and economy.As a key device in the large-capacity power electronic equipment such as converter valve of UHV DC transmission system,thyristor's long-time safe and stable operation is the basis for realizing China's important energy strategy such as sending electricity from west to east.The reliability study,degradation assessment,failure analysis and life prediction of thyristors have become the key engineering frontier issues nowadays.This paper systematically analyzes the causes and mechanisms of thyristor device degradation and failure;explains in detail several typical reliability test methods and their respective evaluation models for degradation monitoring and life prediction,and emphasizes the significance of accelerated aging test model in the reliability study by combining specific cases.In this paper,the future development of thyristor reliability research is prospected,and the research idea of cutting-edge technology crossover is put forward.

关 键 词：大功率半导体 晶闸管 失效分析 可靠性研究 寿命预测 

分 类 号：TN341[电子电信—物理电子学]