Tehničko veleučilište u Zagrebu · Zagreb

Detection of inter-coil short circuits in coils of salient poles synchronous generator excitement winding on the basis of analysis of magnetic field in the machine

izvorni znanstveni rad

izvorni znanstveni rad

Detection of inter-coil short circuits in coils of salient poles synchronous generator excitement winding on the basis of analysis of magnetic field in the machine

Vrsta prilog sa skupa (u zborniku)
Tip izvorni znanstveni rad
Godina 2010
Nadređena publikacija International Conference on Renewable Energies and Power Quality (ICREPQ'10): papers
Status objavljeno

Sažetak

This paper deals with detection of inter-coil short circuits in coils of the salient poles synchronous generator excitement winding on the basis of the analysis of the magnetic field in the machine. Applying FEM to the generator model, magnetic field wave forms in the machine, on the points of interests, under both, faultless and faulty conditions were calculated. When results were compared, changes in wave forms caused by the analyzed fault were identified. On the model, magnetic inductions and magnetic fields were calculated on the points accessible for measuring with Hall’ s sensors and measuring coils in the actual machine. The gold of this paper is a contribution in the field of identification of faults and failures in rotating machines, or, in other words, improvement of monitoring systems in charge of rotating machine condition monitoring.

Ključne riječi

FEM; synchronous generator; magnetic induction; Hall’ s sensor; generator diagnostics