A GPS-based control method for load sharing and power quality improvement in microgrids

Golsorkhi, MS; Lu, DDC; Savaghebi, M; Vasquez, JC; Guerrero, JM

A GPS-based control method for load sharing and power quality improvement in microgrids

Golsorkhi, MS Lu, DDC

Savaghebi, M Vasquez, JC Guerrero, JM

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Publication Type:: Conference Proceeding
Citation:: 2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016, 2016, pp. 3734 - 3740
Issue Date:: 2016-07-13

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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.contributor.author	Savaghebi, M	en_US
dc.contributor.author	Vasquez, JC	en_US
dc.contributor.author	Guerrero, JM	en_US
dc.date.issued	2016-07-13	en_US
dc.identifier.citation	2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016, 2016, pp. 3734 - 3740	en_US
dc.identifier.isbn	9781509012107	en_US
dc.identifier.uri	http://hdl.handle.net/10453/101727
dc.description.abstract	© 2016 IEEE. This paper proposes a novel control method for accurate sharing of load current among the Distributed Energy Resources (DER) and high power quality operating in islanded ac microgrids. This control scheme is based on hierarchical structure comprising of decentralized primary controllers and a centralized secondary controller. The controllers in the primary level use GPS timing technology to synchronize their local time with a common time reference. In this context, proportional current sharing is achieved by adjusting the reference voltage of each DER unit according to a voltage-current (V-I) droop characteristic. The droop coefficient, which acts as a virtual resistance, is adaptively changed as a function of peak current. This strategy not only simplifies the control design but also enables faster dynamics and higher accuracy of current sharing especially at high loading conditions. The secondary controller produces compensation signals at fundamental and dominant harmonics to improve the voltage quality at a sensitive load bus. Experimental results are presented to validate the efficacy of the proposed method.	en_US
dc.relation.ispartof	2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016	en_US
dc.relation.isbasedon	10.1109/IPEMC.2016.7512893	en_US
dc.title	A GPS-based control method for load sharing and power quality improvement in microgrids	en_US
dc.type	Conference Proceeding
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.publication-status	Published	en_US

Abstract:

© 2016 IEEE. This paper proposes a novel control method for accurate sharing of load current among the Distributed Energy Resources (DER) and high power quality operating in islanded ac microgrids. This control scheme is based on hierarchical structure comprising of decentralized primary controllers and a centralized secondary controller. The controllers in the primary level use GPS timing technology to synchronize their local time with a common time reference. In this context, proportional current sharing is achieved by adjusting the reference voltage of each DER unit according to a voltage-current (V-I) droop characteristic. The droop coefficient, which acts as a virtual resistance, is adaptively changed as a function of peak current. This strategy not only simplifies the control design but also enables faster dynamics and higher accuracy of current sharing especially at high loading conditions. The secondary controller produces compensation signals at fundamental and dominant harmonics to improve the voltage quality at a sensitive load bus. Experimental results are presented to validate the efficacy of the proposed method.

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

http://hdl.handle.net/10453/101727