A novel seven-level active neutral-point-clamped converter with reduced active switching devices and DC-link voltage

Siwakoti, YP; Mahajan, A; Rogers, DJ; Blaabjerg, F

A novel seven-level active neutral-point-clamped converter with reduced active switching devices and DC-link voltage

Siwakoti, YP

Mahajan, A

Rogers, DJ

Blaabjerg, F

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Power Electronics, 2019, 34 (11), pp. 10492 - 10508
Issue Date:: 2019-11-01

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Field	Value	Language
dc.contributor.author	Siwakoti, YP https://orcid.org/0000-0002-3869-412X	en_US
dc.contributor.author	Mahajan, A https://orcid.org/0000-0001-9291-2303	en_US
dc.contributor.author	Rogers, DJ https://orcid.org/0000-0001-8814-5332	en_US
dc.contributor.author	Blaabjerg, F https://orcid.org/0000-0001-8311-7412	en_US
dc.date.available	2021-01-01T18:06:58Z
dc.date.issued	2019-11-01	en_US
dc.identifier.citation	IEEE Transactions on Power Electronics, 2019, 34 (11), pp. 10492 - 10508	en_US
dc.identifier.issn	0885-8993	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133473
dc.description.abstract	© 1986-2012 IEEE. This paper presents a novel seven-level inverter topology for medium-voltage high-power applications. It consists of eight active switches and two inner flying capacitor (FC) units forming a similar structure as in a conventional active neutral-point-clamped (ANPC) inverter. This unique arrangement reduces the number of active and passive components. A simple modulation technique reduces cost and complexity in the control system design without compromising reactive power capability. In addition, compared to major conventional seven-level inverter topologies, such as the neutral point clamped, FC, cascaded H-bridge, and ANPC topologies, the new topology reduces the dc-link voltage requirement by 50%. This recued dc-link voltage makes the new topology appealing for various industrial applications. Experimental results from a 2.2-kVA prototype are presented to support the theoretical analysis presented in this paper. The prototype demonstrates a conversion efficiency of around 97.2% ± 1% for a wide load range.	en_US
dc.relation.ispartof	IEEE Transactions on Power Electronics	en_US
dc.relation.isbasedon	10.1109/TPEL.2019.2897061	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Electrical & Electronic Engineering	en_US
dc.title	A novel seven-level active neutral-point-clamped converter with reduced active switching devices and DC-link voltage	en_US
dc.type	Journal Article
utslib.citation.volume	11	en_US
utslib.citation.volume	34	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
utslib.copyright.status	open_access	*
pubs.issue	11	en_US
pubs.publication-status	Published	en_US
pubs.volume	34	en_US

Abstract:

© 1986-2012 IEEE. This paper presents a novel seven-level inverter topology for medium-voltage high-power applications. It consists of eight active switches and two inner flying capacitor (FC) units forming a similar structure as in a conventional active neutral-point-clamped (ANPC) inverter. This unique arrangement reduces the number of active and passive components. A simple modulation technique reduces cost and complexity in the control system design without compromising reactive power capability. In addition, compared to major conventional seven-level inverter topologies, such as the neutral point clamped, FC, cascaded H-bridge, and ANPC topologies, the new topology reduces the dc-link voltage requirement by 50%. This recued dc-link voltage makes the new topology appealing for various industrial applications. Experimental results from a 2.2-kVA prototype are presented to support the theoretical analysis presented in this paper. The prototype demonstrates a conversion efficiency of around 97.2% ± 1% for a wide load range.

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http://hdl.handle.net/10453/133473