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Improving flux regulation of DTC induction motor drive by modifying the index to the FPGA-based lookup table

Improving flux regulation of DTC induction motor drive by modifying the index to the FPGA-based lookup table
Improving flux regulation of DTC induction motor drive by modifying the index to the FPGA-based lookup table

DTC is known for its fast torque response, robustness against parameter variation and simple implementation. The performance of DTC drive, however, deteriorates at low speed due to its poor flux regulation. This paper proposes a technique to improve the flux regulation, and it only requires minor changes to the index of the look-up table. With this method, the simple structure of the DTC is retained and the same look-up table can be used. Experimental results are presented to show the effectiveness and viability of the proposed method. It is shown that flux regulation at low speed is improved and rated flux can be established even at zero speed; improvement in the flux regulation significantly improves the torque dynamic.

Direct Torque Control, flux regulation, FPGA, induction motor
139-144
IEEE
Ajlan, Abdullah
97df60ae-20d3-4913-99b6-20dbdac16a8d
Idris, Nik Rumzi Nik
45b54a20-e821-402c-9ac9-fcd9e82e3598
Lee, Sze Sing
47f36964-db27-4f5e-a4d3-4b0ba78ce29e
Ajlan, Abdullah
97df60ae-20d3-4913-99b6-20dbdac16a8d
Idris, Nik Rumzi Nik
45b54a20-e821-402c-9ac9-fcd9e82e3598
Lee, Sze Sing
47f36964-db27-4f5e-a4d3-4b0ba78ce29e

Ajlan, Abdullah, Idris, Nik Rumzi Nik and Lee, Sze Sing (2018) Improving flux regulation of DTC induction motor drive by modifying the index to the FPGA-based lookup table. In 2017 IEEE Conference on Energy Conversion, CENCON 2017. vol. 2018-January, IEEE. pp. 139-144 . (doi:10.1109/CENCON.2017.8262473).

Record type: Conference or Workshop Item (Paper)

Abstract

DTC is known for its fast torque response, robustness against parameter variation and simple implementation. The performance of DTC drive, however, deteriorates at low speed due to its poor flux regulation. This paper proposes a technique to improve the flux regulation, and it only requires minor changes to the index of the look-up table. With this method, the simple structure of the DTC is retained and the same look-up table can be used. Experimental results are presented to show the effectiveness and viability of the proposed method. It is shown that flux regulation at low speed is improved and rated flux can be established even at zero speed; improvement in the flux regulation significantly improves the torque dynamic.

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More information

Accepted/In Press date: 30 October 2017
Published date: 16 January 2018
Venue - Dates: 3rd IEEE Conference on Energy Conversion, CENCON 2017, , Kuala Lumpur, Malaysia, 2017-10-30 - 2017-10-31
Keywords: Direct Torque Control, flux regulation, FPGA, induction motor

Identifiers

Local EPrints ID: 424703
URI: http://eprints.soton.ac.uk/id/eprint/424703
PURE UUID: 38a7d5f3-cd6b-4528-8663-66954abef36b
ORCID for Sze Sing Lee: ORCID iD orcid.org/0000-0003-2455-5783

Catalogue record

Date deposited: 05 Oct 2018 11:41
Last modified: 15 Mar 2024 21:18

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Contributors

Author: Abdullah Ajlan
Author: Nik Rumzi Nik Idris
Author: Sze Sing Lee ORCID iD

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