高电压技术2017，Vol.43Issue(12)：3944-3949,6.DOI:10.13336/j.1003-6520.hve.20171127017
载流子寿命与高压晶闸管反向恢复特性的关系
Correlations Between Carrier Lifetime and Reverse Recovery Characteristics of High Power Thyristors
岳珂 1孙玮 2刘隆晨 3孔德志 1庞磊 1张乔根1
作者信息
- 1. 西安交通大学电气设备电气绝缘国家重点实验室,西安710049
- 2. 武夷学院,武夷山354300
- 3. 国网四川省电力公司电力科学研究院,成都610072
- 折叠
摘要
Abstract
The reverse recovery characteristics of high power thyristors is important to improve the voltage distribution and reduce the commutation failure of HVDC thyristor valve.Consequently,we studied the reverse recovery characteristics of high power thyristors in two aspects,nanmely,external operating conditions and internal device parameters.Moreover,we experimentally studied the effect of power frequency current on reverse recovery characteristics of high power thyristors by,combining terminal characteristics with internal physical process,and established the relationship of cartier lifetime and reverse recovery time.Thereafter,the influence of reverse recovery characteristics on thyristor valve was analyzed.The results show that the high-level injection lifetime is approximately equal to the reverse recovery storage time with a sine wave;the dominant factor affecting reverse recovery characteristics is lifetime;to meet the demands of voltage and current of high power thyristors,thyristor valve should take thyristors series with the same or similar lifetime.关键词
直流输电/晶闸管/反向恢复/晶闸管阀/暂态特性/载流子寿命Key words
HVDC/thyristor/reverse recovery/thyristor valve/transient characteristics/carrier lifetime引用本文复制引用
岳珂,孙玮,刘隆晨,孔德志,庞磊,张乔根..载流子寿命与高压晶闸管反向恢复特性的关系[J].高电压技术,2017,43(12):3944-3949,6.
