Diagnosis of rotor asymmetries in wound rotor induction generators operating under varying load conditions via the Wigner-Ville Distribution

Climente-Alarcon, V.; Riera-Guasp, M.; Antonino-Daviu, J.; Roger-Folch, J.; Vedreno-Santos, F.

Abstract

Fault diagnosis in wind generators is drawing
increasing attention among the scientific community and
maintenance companies, due to the crucial contribution of
this renewable power source in the electric power
generation map. These machines usually operate through
variable load regimes, a fact that makes the application of
most conventional diagnostic techniques not suitable, since
they are adapted to analysis of stationary quantities. In this
context, the application of modern transient-based
methodologies becomes very appropriate. In this paper, a
technique based on the application of Wigner-Ville
Distribution is proposed to diagnose and quantify rotor
asymmetries in induction generators. It relies on the
Wigner-Ville analysis of the current produced by these
machines while operating under speed varying conditions
and on the further tracking of the characteristic evolutions
of fault-related components in the resulting time-frequency
maps. Preliminary experimental results show the validity of
the approach as well as its potential to diagnose this type of
failures in wind generators

Citation

Climente-Alarcon, V., Riera-Guasp, M., Antonino-Daviu, J., Roger-Folch, J., & Vedreno-Santos, F. (2012, June). Diagnosis of rotor asymmetries in wound rotor induction generators operating under varying load conditions via the Wigner-Ville Distribution. Presented at International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion

• Conference Name: International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion
• Start Date: Jun 20, 2012
• End Date: Jun 22, 2012
• Publication Date: 2012-06
• Deposit Date: Oct 6, 2016
• Publisher: Institute of Electrical and Electronics Engineers
• Book Title: 2012 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)
• ISBN: 9781467313018; 9781467312998; 9781467313001
• DOI: https://doi.org/10.1109/speedam.2012.6264420
• Keywords: Fault diagnosis, induction generator, transient analysis, Wigner-Ville Distributions, Wind generators
• Public URL: http://researchrepository.napier.ac.uk/Output/399838