S Djurovic, The University of Manchester, UK
From session:Induction machines, From: PEMD 2012: Power Electronics, Machines and Drives Conference, 27 - 29 March 2012, Bristol, UK
29 March 2012 Power channel
Effective condition monitoring of remote wind turbine power plant induction generators is significantly gaining importance in modern wind industry. This paper uses a finite element time stepping transient model to investigate the influence of winding faults on the air-gap field distribution of a wound-rotor induction generator. The analysis shows that winding faults cause a severe air-gap field distortion, giving rise to field harmonic orders that would not otherwise be present in the air-gap, and links these to observed winding fault specific changes in the predicted and measured machine current spectrum.