Direct torque control-frequency analysis

Author

Costa, Paulo C. ; Carvalho, Adriano S. ; Chouzal, M. Fatima ; Martins, Carlos A.

Author_Institution

Dept. de Engenharia, Electrotecnica e de Computadores, Porto Univ., Portugal

fYear

1998

fDate

29 Jun-1 Jul 1998

Firstpage

21

Lastpage

23

Abstract

A DTC controller is developed, its characteristics compared with other scalar and vector control techniques based controllers. DTC behaviour is identified with analysis of main problems: variability of the voltage waveform supplied to the motor without pattern and without constant frequency. The designed DTC controller handles the identified problem through a uniform switching frequency based on new frequency domain concepts. The work concludes with the analysis of the mechanical behaviour of the controlled system and of harmonic contents of the waveforms for the electrical power drive

Keywords

frequency-domain analysis; harmonic analysis; induction motor drives; machine control; torque control; waveform analysis; direct torque control; electrical power drive; frequency analysis; frequency domain concepts; harmonic contents; mechanical behaviour; scalar control; uniform switching frequency; vector control techniques; voltage waveform; Commutation; Computer industry; Control systems; Frequency domain analysis; Induction machines; Inverters; Machine vector control; Switches; Switching frequency; Torque control;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Motion Control, 1998. AMC '98-Coimbra., 1998 5th International Workshop on

Conference_Location

Coimbra

Print_ISBN

0-7803-4484-7

Type

conf

DOI

10.1109/AMC.1998.743457

Filename

743457