Universiti Teknologi Malaysia Institutional Repository

Constant frequency torque and flux controllers for direct torque control of induction machines

Nik Idris, Nik Rumzi and Mohd Yatim, Abdul Halim and N. D., Muhamad and Ling, T. C. (2003) Constant frequency torque and flux controllers for direct torque control of induction machines. In: IEEE 34th Annual Power Electronics Specialist Conference , 2003 .

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Official URL: http://ieeexplore.ieee.org/iel5/8633/27360/0121660...

Abstract

This paper proposed a simple solution to the variable switching frequency and high torque ripples problems encountered in hysteresis-based DTC drives. The method replaces the hysteresis-based controllers with fired switching controller which operate based on the comparison between the error signals and the triangular waveforms. Implementation of these coutrollen using digital circuits is highly suitable since they only require Comparisons of waveforms rather than calculations of duty cycles or voltage vectors. Modeling and simulation of the DTC drives using these simple controllers are presented and the results show that they are capable of reducing tbe torque ripples significantly.

Item Type:Conference or Workshop Item (Paper)
Additional Information:ISSN: 0275-9306 INSPEC Accession Number:7846277
Uncontrolled Keywords:frequency control hysteresis motor drives induction motor drives machine control switching circuits torque control constant frequency torque digital circuits direct torque control duty cycle error signal flux controllers hysteresis-based DTC drives induction machine control switching controller torque ripple triangular waveform variable switching frequency voltage vector
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:78
Deposited By: Mr. Mohd Nasir Ibrahim
Deposited On:31 Jan 2007 08:16
Last Modified:22 Mar 2007 17:42

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