Title :
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
fDate :
29 Jun-1 Jul 1998
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;
Conference_Titel :
Advanced Motion Control, 1998. AMC '98-Coimbra., 1998 5th International Workshop on
Conference_Location :
Coimbra
Print_ISBN :
0-7803-4484-7
DOI :
10.1109/AMC.1998.743457
