Direct Torque Control of induction motor with constant switching frequency

Author

Sanila, C.M.

Author_Institution

Dept. of Electr. Eng., RIT, Kottayam, India

fYear

2012

Firstpage

1

Lastpage

6

Abstract

Direct Torque Control (DTC) has become a popular technique for the control of induction motor drives as it provides a fast dynamic torque response and robustness to machine parameter variations. Hysteresis band control is the one of the simplest and most popular technique used in DTC of induction motor drives. However the conventional direct torque control has a variable switching frequency which causes serious problems in DTC. This paper presents the DTC of induction motor with a constant switching frequency torque controller. By this method constant switching frequency operation can be achieved for the inverter. Also the torque and flux ripple will get reduced by this technique. The feasibility of this method in minimizing the torque ripple is verified through some simulation results.

Keywords

dynamic response; frequency control; hysteresis motor drives; induction motor drives; invertors; machine control; robust control; torque control; DTC; constant switching frequency torque controller; direct torque control; dynamic torque response; flux ripple; hysteresis band control; induction motor drive; inverter; machine parameter variation; robustness; torque ripple; Hysteresis; Stators; Switches; Switching frequency; Torque; Vectors; Direct torque control(DTC); Induction motor; constant switching frequency; three phase inverter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Drives and Energy Systems (PEDES), 2012 IEEE International Conference on

Conference_Location

Bengaluru

Print_ISBN

978-1-4673-4506-4

Type

conf

DOI

10.1109/PEDES.2012.6484352

Filename

6484352