Czasopismo | PRZEGLĄD ELEKTROTECHNICZNY | Rocznik 2016 - zeszyt 4

Detection and classification of faults in induction motor by means of motor current signature analysis and stray flux monitoring

10.15199/48.2016.04.36

nr katalogowy: 97614
10.15199/48.2016.04.36

In this paper the detection and classification of faults in induction motor using motor current signature analysis and monitoring of stray flux are presented. During the research motors with static, dynamic and mixed eccentricity were measured. The results were analyzed and compared with the data obtained from the simulated motor models. The behavior of sidebands of principal slot harmonics was examined. The results are presented in the form of graphs that illustrate the effectiveness and advantage of the method for diagnosis of the motor and detection of faults in it. Streszczenie. W artykule przedstawiono metodę detekcji I klasyfikacji defektów silników indukcyjnych na podstawie analizy prądu i strumienia rozprposzonego. Możliwe jest wykrywanie statycznych i dynamicznych ekcentryczności. Zmierzone parametry były porównywane z danymi otrzymanymi metoda symulacji. Detekcja i klasyfikacja defektów silnika indukcyjnego na podstawie analizy prądu i strumienia rozproszonego. Keywords: induction motor faults, eccentricity, stray flux monitoring, motor current signature analysis Słowa kluczowe: silnik indukcyjny, wykrywanie defektów, analiza prądu silnika indukcyjnego Introduction Induction machines are characterized by the high importance for different branches of industry in the whole world. They act as crucial component for any industrial system in a wide range of power. Advance and accurate detection of incipient faults of induction motors and their diagnosis allow to avoid harmful and destructive outcome and prevent financial losses [1]. Eccentricity fault is one of the most significant types of faults in induction [2]-[4] as well as in the synchronous machines [5]. Machine eccentricity is characterized by unequal air-gap that exists between the stator and rotor. In the case when eccentricity enlarges, unbalanced radial forces that also can be known as unbalanced magnetic pull, can cause stator to rotor rub. There exist two types of[...]

Bibliografia

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