A fuzzy-PWM direct torque control of induction machines for current limitation and reduced torque ripple

Author

Restrepo, J.A. ; Viola, J.C. ; Ortega, M. ; Guzmán, V.M. ; Giménez, M.I.

Author_Institution

Simon Bolivar Univ.

fYear

2005

fDate

11-14 Sept. 2005

Abstract

In this paper a PWM-fuzzy direct torque controller for induction machines is proposed, with a current limiting function during start-up or for changes in the flux-linkage reference. The use of PWM in the controller provides a constant switching frequency, and provides additional degrees of freedom to regulate the stator current, stator flux-linkage build-up and torque production. Also, these additional degrees of freedom provide smooth state variables, and a reduction in the torque ripple. The proposed scheme is verified by simulations and by experimental test

Keywords

PWM invertors; asynchronous machines; current limiters; machine control; stators; switching convertors; torque control; current limitation; current limiting function; flux-linkage reference; fuzzy-PWM direct torque control; induction machines; stator current; stator flux-linkage; switching frequency; torque ripple; Bridge circuits; Couplings; Fuzzy control; Induction machines; Pulse width modulation; Pulse width modulation inverters; Stators; Switching frequency; Torque control; Voltage control; AC machine; Current limiter; Direct torque and flux control; Fuzzy control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2005 European Conference on

Conference_Location

Dresden

Print_ISBN

90-75815-09-3

Type

conf

DOI

10.1109/EPE.2005.219654

Filename

1665844