An efficiency-optimization controller for induction motor drives

Author

Benbouzid, M.E.H. ; Said, N. S Nait

Author_Institution

Lab. de Genie des Syst. Ind., Univ. de Picardie, Amiens, France

Volume

18

Issue

5

fYear

1998

fDate

5/1/1998 12:00:00 AM

Firstpage

63

Lastpage

64

Abstract

When working close to their nominal operating point, induction motors are high-efficiency machines. However, at low load, efficiency is greatly reduced when magnetization flux is maintained at nominal value. Therefore, it is necessary to adjust the flux level according to the load, so as to decrease iron and copper losses. This paper deals with a field-oriented scheme for induction motor drives leading to efficiency optimization. It is based on optimal power factor tracking by adjusting magnetization current component with to respect the torque current component. Simulation results are presented to highlight the feasibility and validity of the proposed method

Keywords

control system analysis; control system synthesis; induction motor drives; machine control; machine theory; magnetic flux; magnetisation; optimal control; control design; control simulation; copper losses; efficiency optimization controller; feasibility; field-oriented control scheme; induction motor drives; iron losses; low load efficiency; magnetization current component; magnetization flux; optimal power factor tracking; torque current component; validity; Copper; Equations; Induction motor drives; Induction motors; Iron; Magnetization; Reactive power; Rotors; Stators; Torque;

fLanguage

English

Journal_Title

Power Engineering Review, IEEE

Publisher

ieee

ISSN

0272-1724

Type

jour

DOI

10.1109/39.666569

Filename

666569