A sensorless DTC strategy of induction motor fed by three-level inverter based on discrete space vector modulation

Zhang, Y; Zhu, J; Guo, Y; Xu, W; Wang, Y; Zhao, Z

A sensorless DTC strategy of induction motor fed by three-level inverter based on discrete space vector modulation

Zhang, Y Zhu, J

Guo, Y

Xu, W Wang, Y Zhao, Z

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Publication Type:: Conference Proceeding
Citation:: AUPEC'09 - 19th Australasian Universities Power Engineering Conference: Sustainable Energy Technologies and Systems, 2009
Issue Date:: 2009-12-01

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Field	Value	Language
dc.contributor.author	Zhang, Y	en_US
dc.contributor.author	Zhu, J https://orcid.org/0000-0002-9763-4047	en_US
dc.contributor.author	Guo, Y https://orcid.org/0000-0001-6182-0684	en_US
dc.contributor.author	Xu, W	en_US
dc.contributor.author	Wang, Y	en_US
dc.contributor.author	Zhao, Z	en_US
dc.date.issued	2009-12-01	en_US
dc.identifier.citation	AUPEC'09 - 19th Australasian Universities Power Engineering Conference: Sustainable Energy Technologies and Systems, 2009	en_US
dc.identifier.isbn	9780863967184	en_US
dc.identifier.uri	http://hdl.handle.net/10453/11139
dc.description.abstract	A sensorless direct torque controlled (DTC) induction motor drive fed by a 3-level inverter is presented based on discrete space vector modulation. A novel vector synthesis sequence is proposed to solve the problems caused by the topology of the 3-level inverter, such as neutral point unbalance and excessive voltage jump, while maintaining the merits of simplicity and robustness. Fuzzy logic control and speed adaptive flux observer are introduced to enhance the performance of system. The problem of large starting current is investigated and solved by introducing the technique of pre-excitation. A 32-bit fixed-point DSP based 3-level motor drive has been developed and a series of experimental results are presented to confirm the effectiveness of the proposed techniques.	en_US
dc.relation.ispartof	AUPEC'09 - 19th Australasian Universities Power Engineering Conference: Sustainable Energy Technologies and Systems	en_US
dc.title	A sensorless DTC strategy of induction motor fed by three-level inverter based on discrete space vector modulation	en_US
dc.type	Conference Proceeding
utslib.for	0910 Manufacturing Engineering	en_US
dc.location.activity	Adelaide, Australia	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	open_access
pubs.publication-status	Published	en_US

Abstract:

A sensorless direct torque controlled (DTC) induction motor drive fed by a 3-level inverter is presented based on discrete space vector modulation. A novel vector synthesis sequence is proposed to solve the problems caused by the topology of the 3-level inverter, such as neutral point unbalance and excessive voltage jump, while maintaining the merits of simplicity and robustness. Fuzzy logic control and speed adaptive flux observer are introduced to enhance the performance of system. The problem of large starting current is investigated and solved by introducing the technique of pre-excitation. A 32-bit fixed-point DSP based 3-level motor drive has been developed and a series of experimental results are presented to confirm the effectiveness of the proposed techniques.

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http://hdl.handle.net/10453/11139