基于特征值分析法的PSS最佳安装地点的确定

介绍了电力系统低频振荡的特征值分析方法 ,并采用特征值分析法所得出的结果———参与因子来选择最佳的电力系统稳定器 (PSS)安装地点 ,以提高弱振荡模式的阻尼。采用发电机的转子角速度对弱振荡模式的参与因子作为指标 ,选择最佳的PSS安装地点。通过对一个较大规模的电力系统进行实例分析 ,说明在采用此方法所确定的最佳安装地点上安装PSS ,可对相应振荡模式的阻尼起到很好的改善作用

Identification of PSS optimum location based on eigenvalue analysis method

This paper introduces the eigenvalue analysis method for the low frequency oscillation of power system. The participation factors from eigenvalue analysis are used to identify the optimum location for PSS to improve the damping of the weak oscillation mode. This paper takes the participation factors of rotor angle velocity for weak damping mode as the index to identify the optimum location for PSS. The performance of the proposed method is tested in a large scale power system, and the result shows that, when PSS is located on the selected sites, the damping to the relevant modes can be improved significantly.