摘要
换相失败是直流输电系统逆变侧最常见的故障,为给我国未来直流输电工程的实施提供参考经验、加速直流输电技术国产化的进程,介绍了天广直流输电系统中检测换相失败的方法并根据其采用的控制策略分析了故障的恢复过程,最后对运行中出现的单极换相失败现象的原因及不良影响进行了分析,并对检测换相失败的方法提出了改进建议。实例和实际运行情况表明,所采用的故障检测、调节及恢复手段是比较有效的。
To recover the commutation failure which are one of the most frequently occurred faults in high voltage direct current （HVDC） inverter stations, the method of detecting commutation failures adopted in Tian Guang HVDC lransmission system is introduced. Based on the used basic control lechnique, the process of fault recovery is analyzed. Operation experiences illustrate lhese means which are adopted in Tian-Guang HVDC transmission system are very reliable. Then, reason and negative influences of commutalion failure occurred only in single pole are discussed, and the suggestion for improvement is given.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2008年第8期1769-1773,共5页
High Voltage Engineering
关键词
直流输电
控制策略
换相失败
检测
故障恢复
隐患
HVDC
control strategy
commutation failure
detect
fault recovery
hidden trouble
