An Enhanced DC-Bus Voltage-Control Loop for Single-Phase Grid-Connected DC/AC Converters

Taghizadeh, S; Hossain, MJ; Lu, J; Karimi-Ghartemani, M

An Enhanced DC-Bus Voltage-Control Loop for Single-Phase Grid-Connected DC/AC Converters

Taghizadeh, S Hossain, MJ

Lu, J Karimi-Ghartemani, M

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Power Electronics, 2019, 34 (6), pp. 5819 - 5829
Issue Date:: 2019-06-01

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Field	Value	Language
dc.contributor.author	Taghizadeh, S	en_US
dc.contributor.author	Hossain, MJ https://orcid.org/0000-0001-7602-3581	en_US
dc.contributor.author	Lu, J	en_US
dc.contributor.author	Karimi-Ghartemani, M	en_US
dc.date.available	2021-08-12T19:00:31Z
dc.date.issued	2019-06-01	en_US
dc.identifier.citation	IEEE Transactions on Power Electronics, 2019, 34 (6), pp. 5819 - 5829	en_US
dc.identifier.issn	0885-8993	en_US
dc.identifier.uri	http://hdl.handle.net/10453/138380
dc.description.abstract	© 1986-2012 IEEE. This paper presents a method to enhance the dc-bus voltage-control loop of a single-phase grid-connected dc/ac converter, which improves its responses in terms of oscillation on its dc-bus voltage as well as its output ac current. Conventionally, the double-frequency (2-f) ripple is reduced by using a large electrolyte capacitor, which increases the cost and size of the system. A state-of-the-art approach is to use a notch filter (NF) to block the 2-f ripple in the voltage-control loop. This can significantly reduce the capacitor size. The existing presentations of this method, however, do not integrate the internal dynamics of the NF into consideration. This paper proposes a new way of implementing the NF, which allows integration of its internal variables into the control loop. The resulted system exhibits enhanced transient responses at both the dc-bus voltage and the output ac current. The proposed method is analyzed in detail and its effectiveness is verified through simulations and experimental results.	en_US
dc.relation.ispartof	IEEE Transactions on Power Electronics	en_US
dc.relation.isbasedon	10.1109/TPEL.2018.2866501	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Electrical & Electronic Engineering	en_US
dc.title	An Enhanced DC-Bus Voltage-Control Loop for Single-Phase Grid-Connected DC/AC Converters	en_US
dc.type	Journal Article
utslib.citation.volume	6	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	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	34	en_US

Abstract:

© 1986-2012 IEEE. This paper presents a method to enhance the dc-bus voltage-control loop of a single-phase grid-connected dc/ac converter, which improves its responses in terms of oscillation on its dc-bus voltage as well as its output ac current. Conventionally, the double-frequency (2-f) ripple is reduced by using a large electrolyte capacitor, which increases the cost and size of the system. A state-of-the-art approach is to use a notch filter (NF) to block the 2-f ripple in the voltage-control loop. This can significantly reduce the capacitor size. The existing presentations of this method, however, do not integrate the internal dynamics of the NF into consideration. This paper proposes a new way of implementing the NF, which allows integration of its internal variables into the control loop. The resulted system exhibits enhanced transient responses at both the dc-bus voltage and the output ac current. The proposed method is analyzed in detail and its effectiveness is verified through simulations and experimental results.

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http://hdl.handle.net/10453/138380