Torque control of a three-phase direct reluctance motor

Author

Girardin, Michel

Author_Institution

Ind. Electron. Lab., Swiss Fed. Inst. of Technol., Lausanne, Switzerland

Volume

2

fYear

1997

fDate

7-11 Jul 1997

Firstpage

511

Abstract

This paper describes an open-loop torque control for a three-phase direct reluctance motor which can generate high torque at low speed. The command strategy presented in this paper consists of feeding the motor with three-phase sinewave currents. The torque ripple at low speed is considerably reduced. Moreover, the reference currents of the motor are optimised by the use of a correction factor in such a manner that the ripple torque is minimised in steady-state conditions. The correction factor is stored once off-line and can be used on-line for any application. The acoustic noise level is also reduced by the proposed driving method

Keywords

acoustic noise; angular velocity control; machine control; reluctance motors; torque control; acoustic noise level reduction; command strategy; correction factor; high torque; motor reference currents; open-loop torque control; ripple torque minimisation; steady-state conditions; three-phase direct reluctance motor; three-phase sinewave currents; torque control; torque ripple; velocity control; Acoustic noise; Commutation; Inverters; Phase measurement; Reluctance motors; Rotors; Stators; Teeth; Torque control; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 1997. ISIE '97., Proceedings of the IEEE International Symposium on

Conference_Location

Guimaraes

Print_ISBN

0-7803-3936-3

Type

conf

DOI

10.1109/ISIE.1997.649005

Filename

649005