Rotor faults diagnosis by adjustable window function

• Autorzy: Koura Mohamed Boudiaf , Boudinar Ahmed Hamida , Bendiabdellah Azeddine , Aimer Ameur Fethi , Gherabi Zakaria

Identyfikatory

DOI

10.15199/48.2021.03.24

Warianty tytułu

PL

Diagnostyka uszkodzeń wirnika z wykorzystaniem regulowanej funkcji okna

• Języki publikacji: EN

Abstrakty

EN

Several recent studies dealing with new diagnosis methods criticize the classical method of Power Spectral Density by periodogram technique for its drawbacks related to frequency resolution. This is reflected by the appearance of a smoothing and a negative effect following the selected window function. Indeed, this technique is less efficient in the detection of frequency signatures of faults close to a high amplitude harmonic. In addition, it is unable to detect an incipient fault. However, this method has several advantages such as a low computation time and easy programming. To avoid these drawbacks while considering the method advantages, this paper proposes a simple procedure to define precisely the shape parameters of a new window belonging to the raised-cosine family. This procedure uses the characteristics of the stator current spectrum to ensure reliable diagnosis in the case of an incipient fault, while maintaining a quick processing time. The experimental tests carried out prove the effectiveness of the suggested approach in the diagnosis of incipient fault affecting an induction motor.

PL

Kilka ostatnich badań dotyczących nowych metod diagnostycznych krytykuje klasyczną metodę gęstości widmowej mocy techniką periodogramu ze względu na jej wady związane z rozdzielczością częstotliwości. Rzeczywiście, ta technika jest mniej skuteczna w wykrywaniu sygnatur częstotliwości uszkodzeń blisko harmonicznej o dużejj amplitudzie. Ponadto nie jest w stanie wykryć początkowej usterki. Jednak ta metoda ma kilka zalet, takich jak krótki czas obliczeń i łatwe programowanie. Aby uniknąć tych wad, biorąc pod uwagę zalety metody, w niniejszym artykule zaproponowano prostą procedurę precyzyjnego zdefiniowania parametrów kształtu nowego okna należącego do rodziny podniesionych cosinusów. Ta procedura wykorzystuje właściwości widma prądu stojana, aby zapewnić niezawodną diagnozę w przypadku początkowej fazy uszkodzenia, przy jednoczesnym zachowaniu szybkiego czasu przetwarzania. Przeprowadzone testy eksperymentalne dowodzą skuteczności sugerowanego podejścia w diagnozowaniu początkowej fazy uszkodzenia występującej w silnik indukcyjny.

Słowa kluczowe

EN

diagnostic; induction motor; rotor fault; spectral analysis; window shape parameter

PL

diagnostyka; silnik indukcyjny; usterka wirnika; analiza spektralna; parametr kształtu Okno

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2021
• Tom: R. 97, nr 3
• Strony: 123--129
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Koura Mohamed Boudiaf

• Laboratory of Electric Drives Development, Diagnosis Group, Department of Electrical Engineering, University of Sciences and Technology of Oran, Oran, Algeria

autor

Boudinar Ahmed Hamida

• Laboratory of Electric Drives Development, Diagnosis Group, Department of Electrical Engineering, University of Sciences and Technology of Oran, Oran, Algeria

autor

Bendiabdellah Azeddine

• Laboratory of Electric Drives Development, Diagnosis Group, Department of Electrical Engineering, University of Sciences and Technology of Oran, Oran, Algeria

autor

Aimer Ameur Fethi

• Laboratory of Electric Drives Development, Diagnosis Group, Department of Electrical Engineering, University of Sciences and Technology of Oran, Oran, Algeria

autor

Gherabi Zakaria

• Laboratory of Electric Drives Development, Diagnosis Group, Department of Electrical Engineering, University of Sciences and Technology of Oran, Oran, Algeria

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).