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Constant and high switching frequency torque controller for DTC drives

The letter presents a new method of increasing the switching frequency of a direct torque control (DTC) of induction machines. The method simply replaces the hysteresis comparator of the conventional DTC drives with a triangular waveform-based constant switching frequency controller. By synchronizin...

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Main Authors: Toh, C.L., Idris, N.R.N., Yatim, A.H.M.
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Published: 2018
Online Access:http://dspace.uniten.edu.my/jspui/handle/123456789/8840
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spelling my.uniten.dspace-88402018-02-21T04:32:56Z Constant and high switching frequency torque controller for DTC drives Toh, C.L. Idris, N.R.N. Yatim, A.H.M. The letter presents a new method of increasing the switching frequency of a direct torque control (DTC) of induction machines. The method simply replaces the hysteresis comparator of the conventional DTC drives with a triangular waveform-based constant switching frequency controller. By synchronizing the digital signal processor (DSP) sampling with a triangular waveform and with an appropriate systematic controller design, a high switching frequency DTC drive is possible without requiring a high-frequency space-vector modulator. The implementation of the controller is simple and operates based on waveform comparisons; in this letter it is implemented using a combination of a DSP and a field programmable gate array device. Simulation and experimental results indicate that the controller both reduces the torque ripple and maintains a constant switching frequency. © 2005 IEEE. 2018-02-21T04:32:56Z 2018-02-21T04:32:56Z 2005 http://dspace.uniten.edu.my/jspui/handle/123456789/8840
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description The letter presents a new method of increasing the switching frequency of a direct torque control (DTC) of induction machines. The method simply replaces the hysteresis comparator of the conventional DTC drives with a triangular waveform-based constant switching frequency controller. By synchronizing the digital signal processor (DSP) sampling with a triangular waveform and with an appropriate systematic controller design, a high switching frequency DTC drive is possible without requiring a high-frequency space-vector modulator. The implementation of the controller is simple and operates based on waveform comparisons; in this letter it is implemented using a combination of a DSP and a field programmable gate array device. Simulation and experimental results indicate that the controller both reduces the torque ripple and maintains a constant switching frequency. © 2005 IEEE.
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author Toh, C.L.
Idris, N.R.N.
Yatim, A.H.M.
spellingShingle Toh, C.L.
Idris, N.R.N.
Yatim, A.H.M.
Constant and high switching frequency torque controller for DTC drives
author_facet Toh, C.L.
Idris, N.R.N.
Yatim, A.H.M.
author_sort Toh, C.L.
title Constant and high switching frequency torque controller for DTC drives
title_short Constant and high switching frequency torque controller for DTC drives
title_full Constant and high switching frequency torque controller for DTC drives
title_fullStr Constant and high switching frequency torque controller for DTC drives
title_full_unstemmed Constant and high switching frequency torque controller for DTC drives
title_sort constant and high switching frequency torque controller for dtc drives
publishDate 2018
url http://dspace.uniten.edu.my/jspui/handle/123456789/8840
_version_ 1644494550440345600
score 13.159267

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