Transient Stability of Grid-Forming Inverters in Microgrids: Nonlinear Analysis

Eskandari, M; Savkin, AV

Transient Stability of Grid-Forming Inverters in Microgrids: Nonlinear Analysis

Eskandari, M

Savkin, AV

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Publisher:: IEEE
Publication Type:: Conference Proceeding
Citation:: 2020 16th International Conference on Control, Automation, Robotics and Vision (ICARCV), 2021, 00, pp. 1156-1159
Issue Date:: 2021-01-08

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Field	Value	Language
dc.contributor.author	Eskandari, M https://orcid.org/0000-0003-1185-9585
dc.contributor.author	Savkin, AV
dc.date	2020-12-13
dc.date.accessioned	2022-06-12T08:12:10Z
dc.date.available	2022-06-12T08:12:10Z
dc.date.issued	2021-01-08
dc.identifier.citation	2020 16th International Conference on Control, Automation, Robotics and Vision (ICARCV), 2021, 00, pp. 1156-1159
dc.identifier.isbn	9781728177090
dc.identifier.issn	2474-2953
dc.identifier.uri	http://hdl.handle.net/10453/158123
dc.description.abstract	A current limiting scheme is employed for Inverter-Interfaced Distributed Generation (IIDG) units, mostly in the control loops, to limit the current within the tolerable range and to facilitate the IIDG units being connected to the grid during the transient. However, current-limiting/saturation of the droop-controlled grid-forming inverters affects their transient stability and may make them unstable, which yet has not been explored in the literature in the context of autonomous microgrids (MGs). It is disclosed in this paper that the sharp phase angle variation and the arbitrary resistive output impedance of grid-forming inverters in the current limiting mode make the autonomous MGs unstable. Time-domain simulations prove the idea.
dc.language	en
dc.publisher	IEEE
dc.relation	http://purl.org/au-research/grants/arc/DP190102501
dc.relation.ispartof	2020 16th International Conference on Control, Automation, Robotics and Vision (ICARCV)
dc.relation.ispartof	2020 16th International Conference on Control, Automation, Robotics and Vision
dc.relation.ispartofseries	International Conference on Control Automation Robotics and Vision
dc.relation.isbasedon	10.1109/icarcv50220.2020.9305488
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Transient Stability of Grid-Forming Inverters in Microgrids: Nonlinear Analysis
dc.type	Conference Proceeding
utslib.citation.volume	00
utslib.location.activity	Shenzhen, China
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	*
dc.date.updated	2022-06-12T08:12:09Z
pubs.finish-date	2020-12-15
pubs.publication-status	Published
pubs.start-date	2020-12-13
pubs.volume	00

Abstract:

A current limiting scheme is employed for Inverter-Interfaced Distributed Generation (IIDG) units, mostly in the control loops, to limit the current within the tolerable range and to facilitate the IIDG units being connected to the grid during the transient. However, current-limiting/saturation of the droop-controlled grid-forming inverters affects their transient stability and may make them unstable, which yet has not been explored in the literature in the context of autonomous microgrids (MGs). It is disclosed in this paper that the sharp phase angle variation and the arbitrary resistive output impedance of grid-forming inverters in the current limiting mode make the autonomous MGs unstable. Time-domain simulations prove the idea.

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http://hdl.handle.net/10453/158123