volume | PIER Journals

2012-03-07

A Simple Pattern Recognition Approach for Monitoring Incipient Stator Faults in Salient-Pole Synchronous Generators

J. A. Dente,

Dr. J. A. Dente

Instituto Superior Técnico (IST) , DEEC Energia

Technical University of Lisbon (UTL)

Portugal

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Paulo José da Costa Branco

Prof. Paulo José da Costa Branco

DEEC - AC Energy

Univ of Lisbon

Portugal

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Progress In Electromagnetics Research B, Vol. 39, 163-178, 2012

doi:10.2528/PIERB12012103

Abstract

This paper studies the effect of incipient stator faults in salient-pole synchronous generators and its detection using a simple pattern recognition methodology. A theoretical linear model for the synchronous generator is first developed to provide the relationships between stator and rotor harmonic currents and possible incipient faults on stator electric circuits. All theoretical findings were verified by experimental results. The stator currents and its αβ and dq representations have been used to detect incipient faults on salient-pole synchronous generators using a similar pattern recognition technique which have been proposed for induction machines. From our test results, it became clear that the proposed methodology is capable of correctly monitoring incipient stator faults in salient-pole synchronous generators.

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J. A. Dente, and Paulo José da Costa Branco, "A Simple Pattern Recognition Approach for Monitoring Incipient Stator Faults in Salient-Pole Synchronous Generators," Progress In Electromagnetics Research B, Vol. 39, 163-178, 2012.
doi:10.2528/PIERB12012103

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