摘要
为研究中俄"背靠背"联网输电工程500 kV兴黑线的安全稳定运行,根据联网后的运行方式对线路整体情况进行了建模仿真计算,利用EMTPE软件分析了线路的工频电压分布及工频过电压和操作过电压。仿真计算结果表明,兴黑线工频电压分布均匀,线路故障两相跳闸后均不会发生谐振,操作过电压满足电力行业标准的要求。
In order to study the safe and stable operation of 500 kV Xingfu - Heihe transmission line in China - Russia back - to - back project, this paper establishes the model of the line according to the operation mode of the intercon- nected grid, and analyzes the distribution of power frequency voltage, power frequency over - voltage and switching over- voltage. The simulation result shows that the power frequency voltage is well distributed, and the resonance oscillation is prevented after two - phase trip, and the switching over - voltage meets the requirement of electric power industrial standards.
出处
《黑龙江电力》
CAS
2013年第5期391-393,423,共4页
Heilongjiang Electric Power
关键词
中俄联网
500
KV输电线路
工频电压
操作过电压
工频过电压
interconnected power grid of China and Russia
500 kV transmission line
power frequency voltage
switching over - voltage
power frequency over - voltage
