Method And System For Determining A Synchronous Machine Fault Condition

A method and system of determining an electro-mechanical fault condition in a synchronous machine having a stator, a rotor, and exciter. The method includes: a) obtaining an exciter current signal which is a measurement of an exciter current through stationary windings of the exciter, b) transformin...

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Bibliographic Details
Main Authors PINTO Cajetan, SAHOO Subrat, RODRIGUEZ Pedro
Format Patent
LanguageEnglish
Published 22.02.2018
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A method and system of determining an electro-mechanical fault condition in a synchronous machine having a stator, a rotor, and exciter. The method includes: a) obtaining an exciter current signal which is a measurement of an exciter current through stationary windings of the exciter, b) transforming the exciter current signal to obtain an exciter current frequency spectrum, and c) determining whether an electro-mechanical fault condition is present, and a type of the electro-mechanical fault condition, based on harmonic content related to the frequency of the stator, of the exciter current frequency spectrum.
Bibliography:Application Number: US201515507110