影响快速晶闸管关断时间的因素分析  

Analysis of factors affecting the turn off time of fast thyristors

作　　者：茹梦歌 彭振东 杨晨光 沙新乐 Ru Mengge;Peng Zhendong;Yang Chenguang;Sha Xinle(Wuhan Institute of Marine Electric Propulsion,Wuhan 430064,China)

机构地区：[1]武汉船用电力推进装置研究所,武汉430064

出　　处：《船电技术》2024年第5期57-61,共5页Marine Electric & Electronic Engineering

摘　　要：为得到脉冲大电流工况下不同影响因素对晶闸管关断时间的影响程度,从而优化混合式断路器强迫换流参数的设计,本文基于应用于混合式断路器中的快速晶闸管,搭建试验回路,建立脉冲大电流试验环境,探究晶闸管关断电流峰值、关断电流变化率以及反向电压对快速晶闸管关断时间的影响。Fast thyristor is a commonly used power semiconductor device,widely used in the field of power electronics.The turn-off time of a thyristor is one of its important performance indicators,which directly affects the performance and stability of the circuit.This paper analyzes factors such as peak value of turn-off current,change rate of turn-off current and reverse voltage affecting the turn-off time of fast thyristor,based on the application of fast thyristors in hybrid circuit breakers,constructing a circuit for test,establishing a pulse high current test environment.

关 键 词：快速晶闸管 关断时间 PN结-载流子 

分 类 号：TM561[电气工程—电器] TN34[电子电信—物理电子学]