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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my.utm.18822010-06-01T02:59:15Z http://eprints.utm.my/id/eprint/1882/ Constant and high switching frequency torque controller for DTC drives Toh, C. L. Idris, N. R. N. Yatim, A. H. M. TK Electrical engineering. Electronics Nuclear engineering 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. 2005-08 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/1882/1/01461377_IR9.pdf Toh, C. L. and Idris, N. R. N. and Yatim, A. H. M. (2005) Constant and high switching frequency torque controller for DTC drives. IEEE, Power Electronics Letters, 3 (2). pp. 76-80. ISSN 1540-7985 10.1109/LPEL.2005.851316 |
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TK Electrical engineering. Electronics Nuclear engineering Toh, C. L. Idris, N. R. N. Yatim, A. H. M. Constant and high switching frequency torque controller for DTC drives |
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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.
|
format |
Article |
author |
Toh, C. L. Idris, N. R. N. Yatim, A. H. M. |
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 |
2005 |
url |
http://eprints.utm.my/id/eprint/1882/1/01461377_IR9.pdf http://eprints.utm.my/id/eprint/1882/ |
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