A centralized control architecture for harmonic voltage suppression in islanded microgrids

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Abstract

This paper proposes a centralized control architecture for harmonic voltage suppression in islanded microgrids. The centralized selective harmonic compensator is developed in addition to the autonomous nonlinear load sharing loop in local controllers of inverter-interfaced Distributed Energy Resource (DER) units. Thus the harmonic voltage distortion caused by the mismatch between the harmonic conductance and characteristic impedance of the distribution feeder can be reduced. Moreover, to overcome the constraint on transmitting harmonic signals by a low-bandwidth communication line, a Park transformation aided signal modulation method is integrated to the centralized control architecture. The operation principle and case studies based on computer simulations are presented in this paper and validate the proposed control architecture.
Original languageEnglish
Title of host publicationProceedings of the 37th Annual Conference of IEEE Industrial Electronics Society, IECON 2011
Number of pages6
PublisherIEEE Press
Publication date2011
Pages3070-3075
ISBN (Print)978-1-61284-969-0
DOIs
Publication statusPublished - 2011
Event37th Annual Conference of IEEE Industrial Electronics Society, IECON 2011 - Melbourne, Australia
Duration: 7 Nov 201110 Nov 2011

Conference

Conference37th Annual Conference of IEEE Industrial Electronics Society, IECON 2011
CountryAustralia
CityMelbourne
Period07/11/201110/11/2011

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