中国电机工程学报2012，Vol.32Issue(1)：140-146,7.
高压直流晶闸管阀故障电流下反向电压特性的分析
Analysis on Reverse Voltage Characteristics of HVDC Thyristor Valves in the Fault State
摘要
Abstract
The reverse voltage characteristic of HVDC thyristor valve on the state of fault current was analyzed. A mathematics model was put forward by using circuit topology analysis, which can be validated by test. The influence of thyristor junction temperature, current rate of change, forward current and damping parameters was studied and simulated by implementing the mathematic model. The results show that thyristor junction temperature, current rate of change and forward current can change and influence the reverse recovery charge and voltage. When the damping capacitance is constant, a unique value of damping resistance can be achieved leading to the minimal reverse recovery voltage. The feasibility of the simulation method is verified by tests and high accuracy is achieved.关键词
高压直流晶闸管阀/故障电流/反向恢复/应力分析Key words
HVDC thyristor valve/fault current/reverse recovery/voltage stress分类
信息技术与安全科学引用本文复制引用
解婷,汤广福,郑健超,查鲲鹏,高冲..高压直流晶闸管阀故障电流下反向电压特性的分析[J].中国电机工程学报,2012,32(1):140-146,7.基金项目
国家科技部科技项目(2006BAA02A27). （2006BAA02A27）
