Title :
Compensation for core loss of adaptive flux observer-based field-oriented induction motor drives
Author :
Kubota, Hisao ; Matsuse, Kouki
Author_Institution :
Dept. of Electr. Eng., Meiji Univ., Kawasaki, Japan
Abstract :
The authors present a method of improving the characteristics of flux-observer-based field-oriented induction motor drives by considering core losses. Two kinds of adaptive flux observers of induction motors have been proposed. One adaptive scheme identifies stator and rotor resistances which vary with the motor temperature. The other one identifies the motor speed for eliminating rotational transducers. These adaptive flux observers were derived from an induction motor model which neglects core losses. In the present work, the influence of the core losses on the adaptive flux observers and field-oriented induction motor drives is investigated, and a compensation method is proposed. In order to compensate for this influence, a novel flux observer taking the core loss into account approximately is proposed. The validity of the proposed method has been verified by simulation
Keywords :
State estimation; adaptive control; compensation; electric drives; induction motors; losses; machine control; state estimation; adaptive flux observers; compensation method; core loss; field-oriented induction motor drives; motor speed; rotor resistances; stator resistance; Core loss; Electrical resistance measurement; Equations; Induction motor drives; Induction motors; Observers; Rotors; Stators; Temperature; Transducers;
Conference_Titel :
Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0582-5
DOI :
10.1109/IECON.1992.254603
