摘要
换相失败是逆变器最常见的故障之一,分析了天广直流输电系统中直流电流、越前触发角、直流系统降压运行、直流系统满载率、换流变压器短路阻抗以及换流变压器变比等因素对广州换流站换相失败的影响,所得的结果跟仿真研究中的结果相近。得到的天广直流输电系统换相失败一般规律对其运行有一定的借鉴意义。
Commutation failure is one of the most common faults in inverter station.It would be affected by many factors,such as DC current,advance firing angle,DC dropping operation,full-load ratio,short circuit impedance and ratio of converter transformer.This paper analyzes the effects of these factors on the commutation failure in the inverter in Tian-Guang HVDC transmission system.What's more,the results are close to those of simulation study.The obtained general rule of commutation failure in the inverter in Tian-Guang HVDC transmission system is also helpful to its operation.
出处
《继电器》
CSCD
北大核心
2003年第10期32-36,共5页
Relay
