Induction Motor Speed Estimator Using Rotor Slot Harmonics
This paper presents a solution for the estimation of induction machine rotor speed utilizing harmonic saliencies created by rotor and stator slotting. This solution purposes to add a carrier-signal voltage at the fundamental excitation. We obtain a carrier-signal current that contains the spatial information. The PWM reference voltage is calculated with DSP - ADMC401, from Analog Device.
induction motors harmonic analysis speed measurement pulse width modulated inverters fast fourier transforms