SubSynchronous Resonance


This example shows the possibilities of SIMSEN to take into account electrical and mechanical interactions in power systems.

The SubSynchronous Resonance (SSR) is an important problem in compensated power networks.

Due to a change of topology or impedance of the compensated network, electrical resonance may match the mechanical resonance in the shaft of large generators. Such a resonance may destroy the whole shaft of these generators.



This example is based on an IEEE paper about SSR.

The aim of this simulation is to validate the analytical investigations with the computed results. Additionally, the simulation has been compared with a specific program developed for SSR analysis. SIMSEN and the specific program gave exactly the same results.

In many other cases, SIMSEN has replaced several old specific programs in the field of power networks analysis.