Single phase NTD PLL for fast dynamic response and operational robustness under abnormal grid condition

Gautam, S; Lu, Y; Hassan, W; Xiao, W; Lu, DDC

Single phase NTD PLL for fast dynamic response and operational robustness under abnormal grid condition

Gautam, S Lu, Y Hassan, W Xiao, W Lu, DDC

Permalink

Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Electric Power Systems Research, 2020, 180
Issue Date:: 2020-03-01

Closed Access

	Filename	Description	Size
	main.pdf		3.91 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Gautam, S
dc.contributor.author	Lu, Y
dc.contributor.author	Hassan, W
dc.contributor.author	Xiao, W
dc.contributor.author	Lu, DDC
dc.date.accessioned	2021-04-08T05:29:15Z
dc.date.available	2021-04-08T05:29:15Z
dc.date.issued	2020-03-01
dc.identifier.citation	Electric Power Systems Research, 2020, 180
dc.identifier.issn	0378-7796
dc.identifier.issn	1873-2046
dc.identifier.uri	http://hdl.handle.net/10453/147896
dc.description.abstract	Non-frequency-dependent transfer delay (NTD) approach is one of the simplest and the fastest solution for single-phase AC systems to achieve phase-locked loops (PLLs). It also exhibits immunity to error in estimated quantities in grid frequency variations. However it is susceptible to grid voltage disturbances, such as DC offset and distortions. This paper proposed an improved NTD scheme to achieve both fast dynamic response and operational robustness against abnormal grid conditions. The solution is based on a digital phase lead compensator (PLC), which is cascaded with the MAF inside the PLL control loop to enhance dynamic response and mitigate disturbance, DC offset, and harmonics. The filtering structure is also designed to be adaptive to grid frequency variations. The effectiveness of the proposed solution is verified via simulation and experimental results.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Electric Power Systems Research
dc.relation.isbasedon	10.1016/j.epsr.2019.106156
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering
dc.subject.classification	Energy
dc.title	Single phase NTD PLL for fast dynamic response and operational robustness under abnormal grid condition
dc.type	Journal Article
utslib.citation.volume	180
utslib.for	0906 Electrical and Electronic Engineering
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	2021-04-08T05:29:13Z
pubs.publication-status	Published
pubs.volume	180

Abstract:

Non-frequency-dependent transfer delay (NTD) approach is one of the simplest and the fastest solution for single-phase AC systems to achieve phase-locked loops (PLLs). It also exhibits immunity to error in estimated quantities in grid frequency variations. However it is susceptible to grid voltage disturbances, such as DC offset and distortions. This paper proposed an improved NTD scheme to achieve both fast dynamic response and operational robustness against abnormal grid conditions. The solution is based on a digital phase lead compensator (PLC), which is cascaded with the MAF inside the PLL control loop to enhance dynamic response and mitigate disturbance, DC offset, and harmonics. The filtering structure is also designed to be adaptive to grid frequency variations. The effectiveness of the proposed solution is verified via simulation and experimental results.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/147896