METHOD FOR DETECTING A STRUCTURAL FAULT OF AN ELECTRIC MOTOR

The invention relates to a method for detecting a structural fault of an electric motor (1), comprising the steps:(i) acquiring a measurement signal (S) of a physical parameter representative of the rotation of the electric motor (1),(ii) obtaining the high frequency component of the measurement sig...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DUTREY, Alain, TALBI, Saïd
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERATION MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING
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Beschreibung
Zusammenfassung:	The invention relates to a method for detecting a structural fault of an electric motor (1), comprising the steps:(i) acquiring a measurement signal (S) of a physical parameter representative of the rotation of the electric motor (1),(ii) obtaining the high frequency component of the measurement signal (S), resulting in a corrected signal (S_cor),(iii) Applying a set of band-pass filters (F-1, ..., F-n) to the corrected signal (S_cor) resulting in a set of filtered corrected signals (FS_cor-1, ..., FS_cor-n),(iv) Determining a stator frequency (Fs) and a rotor frequency (Fr),(v) Computing a frequency signature vector (FSV),(vi) Computing a temporal symptom vector (TSV) from the frequency signature vector (FSV) and the set of filtered corrected signals (FS_cor-1, ..., FS_cor-n),(vii) Detecting a structural fault of the electric motor (1) from the determined temporal symptom vector (TSV) and from a classifier model.