Title :
An electrical speed detection based on current line spectral analysis for induction motor drives
Author :
Beguenane, R. ; Benbouzid, M.E.H. ; Capolino, G.A.
Author_Institution :
Lab. des Syst. Autom., Univ. de Picardie-Jules Verne, Amiens, France
Abstract :
In this paper, a new speed measurement, based on fast Fourier transform (FFT) computation of stator current spectrum, is proposed. This current contains slot harmonics from which the speed is deduced. It is shown how the accuracy of speed measurement can be improved by choosing a convenient window for before FFT calculation. Experimental results are given to demonstrate the application of the proposed detection method on a squirrel cage induction motor fed by a pulse width modulation voltage source inverter (PWM-VSI)
Keywords :
PWM invertors; fast Fourier transforms; harmonic analysis; induction motor drives; spectral analysis; squirrel cage motors; stators; velocity measurement; FFT; PWM-VSI; current line spectral analysis; electrical speed detection; fast Fourier transform; induction motor drives; pulse width modulation voltage source inverter; slot harmonics; squirrel cage induction motor; stator current spectrum; Frequency conversion; Low pass filters; Magnetic flux density; Phase locked loops; Power harmonic filters; Pulse width modulation; Pulse width modulation inverters; Rotors; Spectral analysis; Stators;
Conference_Titel :
Electrotechnical Conference, 1996. MELECON '96., 8th Mediterranean
Conference_Location :
Bari
Print_ISBN :
0-7803-3109-5
DOI :
10.1109/MELCON.1996.551585
