A Decentralized Control Method for Islanded Microgrids under Unbalanced Conditions

Golsorkhi, MS; Lu, DDC

A Decentralized Control Method for Islanded Microgrids under Unbalanced Conditions

Golsorkhi, MS Lu, DDC

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Power Delivery, 2016, 31 (3), pp. 1112 - 1121
Issue Date:: 2016-06-01

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Field	Value	Language
dc.contributor.author	Golsorkhi, MS	en_US
dc.contributor.author	Lu, DDC https://orcid.org/0000-0003-2145-0580	en_US
dc.date.issued	2016-06-01	en_US
dc.identifier.citation	IEEE Transactions on Power Delivery, 2016, 31 (3), pp. 1112 - 1121	en_US
dc.identifier.issn	0885-8977	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118273
dc.description.abstract	© 1986-2012 IEEE. Unbalanced load currents not only give rise to unbalanced voltages but also adversely affect the performance of the conventional current-limiting mechanisms. The latter might result in overcurrent stress on the distributed energy resources (DERs) or current harmonics. In this paper, a novel decentralized control method is proposed to improve the power quality and protect DERs from overload. The proposed controller makes use of the model predictive control (MPC) technique to minimize the voltage unbalance, improve current limiting, and prevent active power overload. The MPC is combined with the V-I droop method to realize coordinated operation with fast dynamic response. The proposed method is tested on the CIGRE benchmark microgrid. Simulation results demonstrate that the proposed method improves power quality but also allows for operation close to the maximum load capacity without imposing DERs to overload.	en_US
dc.relation.ispartof	IEEE Transactions on Power Delivery	en_US
dc.relation.isbasedon	10.1109/TPWRD.2015.2453251	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Energy	en_US
dc.title	A Decentralized Control Method for Islanded Microgrids under Unbalanced Conditions	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	31	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	closed_access	*
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	31	en_US

Abstract:

© 1986-2012 IEEE. Unbalanced load currents not only give rise to unbalanced voltages but also adversely affect the performance of the conventional current-limiting mechanisms. The latter might result in overcurrent stress on the distributed energy resources (DERs) or current harmonics. In this paper, a novel decentralized control method is proposed to improve the power quality and protect DERs from overload. The proposed controller makes use of the model predictive control (MPC) technique to minimize the voltage unbalance, improve current limiting, and prevent active power overload. The MPC is combined with the V-I droop method to realize coordinated operation with fast dynamic response. The proposed method is tested on the CIGRE benchmark microgrid. Simulation results demonstrate that the proposed method improves power quality but also allows for operation close to the maximum load capacity without imposing DERs to overload.

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http://hdl.handle.net/10453/118273