An Enhanced Time-Delay-Based Reference Current Identification Method for Single-Phase System

Gautam, S; Lu, Y; Taghizadeh, S; Xiao, W; Lu, DD-C

An Enhanced Time-Delay-Based Reference Current Identification Method for Single-Phase System

Gautam, S Lu, Y Taghizadeh, S Xiao, W Lu, DD-C

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Publisher:: Institute of Electrical and Electronics Engineers
Publication Type:: Journal Article
Citation:: IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2022, 3, (3), pp. 683-693
Issue Date:: 2022-08-06

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Field	Value	Language
dc.contributor.author	Gautam, S
dc.contributor.author	Lu, Y
dc.contributor.author	Taghizadeh, S
dc.contributor.author	Xiao, W
dc.contributor.author	Lu, DD-C
dc.date.accessioned	2022-10-23T23:53:01Z
dc.date.available	2022-10-23T23:53:01Z
dc.date.issued	2022-08-06
dc.identifier.citation	IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2022, 3, (3), pp. 683-693
dc.identifier.issn	2687-9735
dc.identifier.issn	2687-9743
dc.identifier.uri	http://hdl.handle.net/10453/162609
dc.description.abstract	This article proposes an enhanced time-delay-based current component identification method for single-phase systems to overcome the absence of filtering and poor grid frequency response of conventional method. The proposed technique integrates a delayed signal cancellation with a time-delay unit, to incorporate a dc offset rejection feature, while maintaining speedy and precise extraction of orthogonal current components. The frequency adaption is also developed through the incorporation of linear interpolation. The dynamic and steady-state performance of the proposed method is analyzed and compared with two advanced second-order generalized integrator (SOGI) based methods, namely, modified SOGI and cascaded SOGI under different operating scenarios. The simulation and experimental results substantiate the advantage of zero steady-state error and lower settling time of the proposed solution while exhibiting comparable overshoot with advanced SOGI-based methods.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers
dc.relation.ispartof	IEEE Journal of Emerging and Selected Topics in Industrial Electronics
dc.relation.isbasedon	10.1109/jestie.2021.3102436
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	An Enhanced Time-Delay-Based Reference Current Identification Method for Single-Phase System
dc.type	Journal Article
utslib.citation.volume	3
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	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-10-23T23:52:57Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	3
utslib.citation.issue	3

Abstract:

This article proposes an enhanced time-delay-based current component identification method for single-phase systems to overcome the absence of filtering and poor grid frequency response of conventional method. The proposed technique integrates a delayed signal cancellation with a time-delay unit, to incorporate a dc offset rejection feature, while maintaining speedy and precise extraction of orthogonal current components. The frequency adaption is also developed through the incorporation of linear interpolation. The dynamic and steady-state performance of the proposed method is analyzed and compared with two advanced second-order generalized integrator (SOGI) based methods, namely, modified SOGI and cascaded SOGI under different operating scenarios. The simulation and experimental results substantiate the advantage of zero steady-state error and lower settling time of the proposed solution while exhibiting comparable overshoot with advanced SOGI-based methods.

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http://hdl.handle.net/10453/162609