Title :
Measuring, modeling, and decoupling of saturation-induced saliencies in carrier-signal injection-based sensorless AC drives
Author :
Briz, Fernando ; Degner, Michael W. ; Diez, Alberto ; Lorenz, Robert D.
Author_Institution :
Dept. of Electr., Comput. & Syst. Eng., Oviedo Univ., Spain
Abstract :
The focus of this paper is the measuring, modeling, and decoupling of saturation-induced saliencies in carrier-signal injection-based sensorless control. First, techniques for the measurement of saturation-induced saliencies are presented. The goal of these measurements is to provide useful information on the position and magnitude of the various saturation-induced saliencies. Using the results from several different experimental measurements, models are developed explaining the source and behavior of the saturation-induced saliencies. The paper concludes by presenting methods for decoupling the effects caused by the parasitic saturation-induced saliencies, eliminating the errors that they cause in rotor position or flux angle estimation
Keywords :
induction motor drives; machine control; magnetic leakage; parameter estimation; rotors; stators; 0.75 kW; carrier-signal injection-based sensorless AC drives; flux angle estimation errors; flux estimation; induction motor drive; position estimation; rotor position estimation errors; saturation-induced saliencies decoupling; saturation-induced saliencies measurement; self-sensing; sensorless control; stator leakage flux; stator leakage inductance; velocity estimation; Bars; Electric machines; Estimation error; Helium; Inductance; Industry Applications Society; Position measurement; Rotors; Sensorless control; Torque;
Journal_Title :
Industry Applications, IEEE Transactions on
