基于射影控制的直流输电和静态无功补偿器协调控制

Coordinate Control between HVDC and SVC Based on the Projective Control Theory

为消除高压直流输电和静止无功补偿器在动态过程中附加阻尼控制的相互干扰,文章设计了基于射影控制的协调阻尼控制器。该控制器以广域信号为反馈输入,根据时滞系统稳定性定理形成参考状态反馈控制系统,基于射影控制原理获得低阶输出反馈控制。时域仿真和特征值分析结果均证明该控制器具有的良好阻尼效果,在不同的时滞下仍然可以很好地提供阻尼。

In order to avoid the adverse interaction between high voltage direct current （HVDC） power transmission and static var compensator （SVC） during dynamic process, a projective control based coordinate damping controller is proposed. In this controller wide area signals are adopted as its feedback input; in terms of stability theorem of time-lag system, a reference state feedback control system is designed and based on projective control principle the low-order output feedback control is obtained. The results from time-domain simulation and eigenvalue analysis prove that the proposed controller can provide good damping effect so far as to different time lags.