A maximum torque per ampere control strategy for induction motor drives

Author

Wasynczuk, O. ; Sudhoff, S.D. ; Corzine, K.A. ; Tichenor, Jerry L. ; Krause, P.C. ; Hansen, I.G. ; Taylor, L.M.

Author_Institution

P.C. Krause & Associates Inc., West Lafayette, IN, USA

Volume

13

Issue

2

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

163

Lastpage

169

Abstract

In this paper, a new control strategy is proposed which is simple in structure and has the straightforward goal of minimizing the stator current amplitude for a given load torque. It is shown that the resulting induction motor efficiency is reasonably close to optimal and that the approach is insensitive to variations in rotor resistance. Although the torque response is not as fast as in field-oriented (FO) control strategies, the response is reasonably fast. In fact, if the mechanical time constant is large relative to the rotor time constant, which is frequently the case, the sacrifice in dynamic performance is insignificant relative to FO strategies

Keywords

electric current control; induction motor drives; machine control; rotors; torque control; induction motor drives; induction motor efficiency; load torque; maximum torque per ampere control strategy; mechanical time constant; rotor resistance variations; rotor time constant; stator current amplitude minimisation; torque response; Control systems; Electric variables control; Electromagnetic fields; Electromagnetic induction; Frequency; Induction motor drives; Induction motors; Rotors; Stators; Torque control;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.678980

Filename

678980