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在建立含可控硅串联补偿装置（TCSC）的电力系统线性化数学模型的基础上，提出了TCSC在系统中最佳位置的选择方法，并对可控串补控制系统分别采用全状态反馈控制、线性二次型最优控制和输出反馈最优控制时阻尼系统低频振荡的作用进行了分析，证明了TCSC采用线性控制方法可以提高系统的稳定性。最后以三机系统为例，利用频域仿真计算验证了所讨论的三种控制方法抑制系统低频振荡的有效性。
Based on the establishment of linear mathematical model of power system with thyristor series compensation device (TCSC), the optimal position selection method of TCSC in the system is proposed, and the state feedback control , The linear quadratic optimal control and the output feedback optimal control are analyzed. It is proved that TCSC can improve the stability of the system by adopting the linear control method. Finally, taking the three-machine system as an example, the validity of the low-frequency oscillation restrained by the three control methods discussed is verified by using the frequency domain simulation.