With increase of the series compensation level, the sub-synchronousresonance may occur at the left side neighborhood of the imaginary axe.
随着串联补偿度的升高，次同步谐振可能出现于虚轴左侧邻域。
2
The continuous model is adopted in the torsional vibration frequency and resonance of shaft system, the lumped parameter equivalent applied in the sub-synchronousresonance.
轴系扭振频率和响应计算采用连续质量模型，次同步谐振特性分析采用集中质量模型。
3
As to the problem of subsynchronousresonance (SSR) in thyristor controlled series compensation (TCSC) circuit, a method to real time detect and suppress sub harmonic has been put forward.