Especially the torsional oscillations of a turbo generator set caused by grid malfunctions, grid interactions or operatation errors lead to fatigue of shaft components and can even cause severe mechanical damage. In some cases, the latter induce additional permanent torsional vibrations in the rotational frequency and its harmonics. It is therefore necessary to ensure continuous monitoring of a rotating drive train for torsional vibrations.
Continuous monitoring for torsional vibrations
In recent years, we have developed the software tools TorGrid, TorFat and TorAn, which, together with the non-contact torque sensor we distribute exclusively, each form a torsion detection and analysis system of varying complexity.
Depending on the application, we use the respective system to detect and store relevant power and torsional vibrations for interaction analysis between mechanical and electrical variables (TorGrid). With a digital twin, we predict and evaluate torsional vibrations even for inaccessible components (TorAn). Stored torsional events are visualised in the time and frequency domain with the integrated tool TorVis. In addition to long-term monitoring, our torque monitoring systsms are also successfully used to determine torsional natural frequencies and mechanical damping values of the drive trains.
Our systems are installed in power plants worldwide on behalf of power plants operators. Beyond the power plant sector, our systems are suitable - in principle - for torque measurement and analysis on any rotationg drive trains with ferromagnetic shaft surfaces. In particular, our systems are an ideal extension of condition monitoring systems for many applications. We would also be happy to integrate them to monitor your shaft line.