摘要
高压直流输电(HVDC)逆变侧交流系统的强度直接影响HVDC系统的故障恢复特性。分析逆变器换相失败的机理,归纳了联于交流系统的HVDC换相失败的各种影响因素。利用PSCAD/EMTDC仿真软件,对不同短路比情况下的HVDC系统单相故障进行了仿真分析。
The fault restoration speed of HVDC system is directly influenced by the strength of AC power system to which the HVDC is connected. This paper analyzed mechanism related to commutation failures. All kind of influence factors were concluded about commutation failures connected to AC systems. The same conclusion had been got when simulation on one phase fault in different SCR of HVDC system using PSCAD/EMTDC simulation sotftware.
出处
《电力科学与工程》
2007年第3期24-26,共3页
Electric Power Science and Engineering
关键词
高压直流输电
短路比
故障恢复
仿真
HVDC
Short Circuit Ratio （SCR）
fault restoration
simulation
