用于提高单机无穷大系统阻尼的可控串补稳定器研究

Research of TCSC Stabilizer for Enhancing Damping Effect of Single-machine Infinite-bus Power System

为了有效阻尼本地模式的振荡,引入了可控串补的阻尼控制,在含TCSC单机无穷大系统的传递函数框图的基础上,推导了TCSC提供的附加转矩,并利用传统的相位补偿法完成了TCSC阻尼控制器的参数整定。在单机无穷大系统算例中,整定了TCSC控制器参数,计算了TCSC安装前后系统机电振模的变化,验证了TCSC对本地模式阻尼增强的效果。

For suppressing to the local mode oscillations effectively, TCSC damping control is introduced in this paper. According to the transfer function block diagram of single-machine infinite-bus power system with TCSC device, additional electromagnetic torque provided by TCSC is derived, and traditional phase compensation method is used to tune the parameter of the damping controller. In the computational sample of single-machine infinite-bus power system, the parameter tuning of TCSC damping controller is completed, the change of the electromechanical oscillation mode before and after installing the TCSC device is calculated, and enhanced damping effect of TCSC device on the local mod oscillations is verified.