An improved direct torque control for three-level inverter-fed induction motor sensorless drive

Zhang, Y; Zhu, J; Zhao, Z; Xu, W; Dorrell, DG

An improved direct torque control for three-level inverter-fed induction motor sensorless drive

Zhang, Y

Zhu, J

Zhao, Z Xu, W

Dorrell, DG

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Power Electronics, 2012, 27 (3), pp. 1502 - 1513
Issue Date:: 2012-02-20

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Field	Value	Language
dc.contributor.author	Zhang, Y https://orcid.org/0000-0001-8480-2948	en_US
dc.contributor.author	Zhu, J https://orcid.org/0000-0002-9763-4047	en_US
dc.contributor.author	Zhao, Z	en_US
dc.contributor.author	Xu, W https://orcid.org/0000-0003-0816-6016	en_US
dc.contributor.author	Dorrell, DG https://orcid.org/0000-0001-8060-3386	en_US
dc.date.issued	2012-02-20	en_US
dc.identifier.citation	IEEE Transactions on Power Electronics, 2012, 27 (3), pp. 1502 - 1513	en_US
dc.identifier.issn	0885-8993	en_US
dc.identifier.uri	http://hdl.handle.net/10453/18390
dc.description.abstract	A sensorless three-level neutral-point-clamped inverter-fed induction motor drive is proposed in this paper. The conventional direct torque control (DTC) switching table fails to consider the circuit limitations, such as neutral-point-balance and smooth vector switching, caused by the topology of a three-level inverter. Two kinds of modified schemes for three-level DTC are proposed to solve these problems. They also provide performance enhancement while maintaining robustness and simplicity. Fuzzy logic control and the speed-adaptive flux observer (with novel gain and load toque observation) are introduced to enhance the performance of the system. The issue of large starting current is investigated and solved by introducing the technique of preexcitation. A 32-bit fixed-point DSP-based motor drive is developed to achieve high-performance sensorless control over a wide speed range. The effectiveness of the proposed schemes is confirmed by simulation implementation and experimental validation. © 2011 IEEE.	en_US
dc.relation.ispartof	IEEE Transactions on Power Electronics	en_US
dc.relation.isbasedon	10.1109/TPEL.2010.2043543	en_US
dc.subject.classification	Electrical & Electronic Engineering	en_US
dc.title	An improved direct torque control for three-level inverter-fed induction motor sensorless drive	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	27	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	27	en_US

Abstract:

A sensorless three-level neutral-point-clamped inverter-fed induction motor drive is proposed in this paper. The conventional direct torque control (DTC) switching table fails to consider the circuit limitations, such as neutral-point-balance and smooth vector switching, caused by the topology of a three-level inverter. Two kinds of modified schemes for three-level DTC are proposed to solve these problems. They also provide performance enhancement while maintaining robustness and simplicity. Fuzzy logic control and the speed-adaptive flux observer (with novel gain and load toque observation) are introduced to enhance the performance of the system. The issue of large starting current is investigated and solved by introducing the technique of preexcitation. A 32-bit fixed-point DSP-based motor drive is developed to achieve high-performance sensorless control over a wide speed range. The effectiveness of the proposed schemes is confirmed by simulation implementation and experimental validation. © 2011 IEEE.

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http://hdl.handle.net/10453/18390