Parameter Boundary Characterization for DC Microgrid Islanding Detection Based on Time-Domain Voltage Oscillation Trajectory Analysis

Shi, T; Xiang, X; Lei, J; Liu, B; Wang, F; Li, L; Aguilera, R; Li, W

Parameter Boundary Characterization for DC Microgrid Islanding Detection Based on Time-Domain Voltage Oscillation Trajectory Analysis

Shi, T Xiang, X Lei, J Liu, B Wang, F Li, L

Aguilera, R Li, W

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Publisher:: Institute of Electrical and Electronics Engineers (IEEE)
Publication Type:: Journal Article
Citation:: IEEE Transactions on Smart Grid, 2024, PP, (99), pp. 1-1
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Shi, T
dc.contributor.author	Xiang, X
dc.contributor.author	Lei, J
dc.contributor.author	Liu, B
dc.contributor.author	Wang, F
dc.contributor.author	Li, L https://orcid.org/0000-0001-8485-2216
dc.contributor.author	Aguilera, R
dc.contributor.author	Li, W
dc.date.accessioned	2024-09-05T10:46:32Z
dc.date.available	2024-09-05T10:46:32Z
dc.date.issued	2024-01-01
dc.identifier.citation	IEEE Transactions on Smart Grid, 2024, PP, (99), pp. 1-1
dc.identifier.issn	1949-3053
dc.identifier.issn	1949-3061
dc.identifier.uri	http://hdl.handle.net/10453/180675
dc.description.abstract	Unintentional islanding events cause potential threats to the safety of dc microgrids. Selected frequency islanding detection is considered a promising technology thanks to its good power quality and high detection accuracy. However, the conventional frequency-domain-based islanding detection parameter boundary cannot consider the impact of detection time, which causes a quite slow detection speed and thus leads to detection failure. To overcome this obstacle, a linear model of the islanding dc system is developed first to analyze the steady-state response of the voltage at the point of common coupling (PCC). On top of that, the components of the islanding system characteristic equation are analyzed based on modal analysis, which lays a good foundation for simplifying the time-domain response model of the PCC voltage. Then, the oscillation trajectory of the PCC voltage triggered by the islanding event is characterized in the time domain, which facilitates the analysis and calculation of islanding detection time. Furthermore, the boundary of the islanding detection parameters considering the detection time effect is accurately depicted to guide the resonator design. In this manner, the effect of resonant parameters on the detection time can be evaluated visually while the fast detection speed is also ensured. Finally, the proposed method is validated in simulations and hardware-in-loop experiments.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartof	IEEE Transactions on Smart Grid
dc.relation.isbasedon	10.1109/TSG.2024.3419584
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0906 Electrical and Electronic Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	4008 Electrical engineering
dc.subject.classification	4009 Electronics, sensors and digital hardware
dc.subject.classification	4606 Distributed computing and systems software
dc.title	Parameter Boundary Characterization for DC Microgrid Islanding Detection Based on Time-Domain Voltage Oscillation Trajectory Analysis
dc.type	Journal Article
utslib.citation.volume	PP
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	0915 Interdisciplinary 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	recently_added	*
dc.date.updated	2024-09-05T10:46:25Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	PP
utslib.citation.issue	99

Abstract:

Unintentional islanding events cause potential threats to the safety of dc microgrids. Selected frequency islanding detection is considered a promising technology thanks to its good power quality and high detection accuracy. However, the conventional frequency-domain-based islanding detection parameter boundary cannot consider the impact of detection time, which causes a quite slow detection speed and thus leads to detection failure. To overcome this obstacle, a linear model of the islanding dc system is developed first to analyze the steady-state response of the voltage at the point of common coupling (PCC). On top of that, the components of the islanding system characteristic equation are analyzed based on modal analysis, which lays a good foundation for simplifying the time-domain response model of the PCC voltage. Then, the oscillation trajectory of the PCC voltage triggered by the islanding event is characterized in the time domain, which facilitates the analysis and calculation of islanding detection time. Furthermore, the boundary of the islanding detection parameters considering the detection time effect is accurately depicted to guide the resonator design. In this manner, the effect of resonant parameters on the detection time can be evaluated visually while the fast detection speed is also ensured. Finally, the proposed method is validated in simulations and hardware-in-loop experiments.

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http://hdl.handle.net/10453/180675