中文说明：应用背景晶闸管可控串联补偿（TCSC）可以改变传输电抗线灵活地调节功率流，是最有效的手段之一提高电力系统稳定性。低频振荡（LFO）在大型互联网络是一个关键的问题，降低了系统稳定性。并；关键技术在暂态稳定控制策略中，一些具有复杂结构的控制器给出。但一些现场的研究表明，该控制器的振荡频率和相位移的角度对振荡的阻尼有很大的影响，这是一个很小的研究问题。我们的项目进行了研究TCSC的控制策略来提高多机网络的暂态稳定性，并给TCSC基本控制规则快速阻尼功率振荡。
English Description：
Application background Thyristor controlled series compensation (TCSC) can change the reactance of transmission line flexibly to modulate power flow, and is one of the most efficacious means to improve the stability of power system. Low frequency oscillation (LFO) in large scale interconnected network is a key problem which debases system stability. Key Technology In the transient stability control strategy some controllers with complex structure are give out. But some field experience indicated that the oscillation frequency and the phase shift angle of the controller have a great influence on the damping to power oscillation, which is a problem w