An induction motor speed measurement method based on supplying current analysis

• Autorzy: Bień A. , Duda K.

Warianty tytułu

PL

Pomiar prędkości obrotowej silnika indukcyjnego w oparciu o analizę widmową prądu zasilania

• Języki publikacji: EN

Abstrakty

EN

We present a new technique for estimating speed and slip of the induction motor. The method is based on the time-frequency analysis of the current suppling the motor. Interpolated OFT, computed in the sliding time window, is used for obtaining current spectrograms with high frequency resolution. The speed and the slip are estimated from the fluctuation of amplitude of the main current harmonic. The proposed method is validated by Iaboratory experiment.

PL

Przedstawiony tekst opisuje nową technikę pomiaru prędkości obrotowej - poślizgu silnika indukcyjnego. Prezentowana metoda opiera się o analizę czasowo-częstotliwościową prądu zasilania silnika w jednej fazie. Wyznaczana jest interpolowana OFT w analizowanych oknach czasowych, tak by uzyskać konieczną rozdzielczość częstotliwościową spektrogramów prądu. Poślizg i prędkość obrotowa wyznaczana jest na podstawie fluktuacji amplitudy podstawowej harmonicznej. Opisano wyniki badań laboratoryjnych metody.

Słowa kluczowe

EN

induction motor; slip; rotational speed; interpolated DFT; time-frequency analysis

PL

silnik indukcyjny; poślizg; prędkość obrotowa; interpolowane; DFT; analiza czasowo-częstotliwościowa

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 3
• Strony: 201--203
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Bień A.

autor

Duda K.

• Akademia Górniczo-Hutnicza w Krakowie, Katedra Metrologii,

Bibliografia

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