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dc.contributor.authorHossain, MA
dc.contributor.authorPota, HR
dc.contributor.authorHaruni, AMO
dc.contributor.authorHossain, MJ
dc.date.accessioned2022-02-16T02:45:25Z
dc.date.available2022-02-16T02:45:25Z
dc.date.issued2017
dc.identifier.issn0378-7796
dc.identifier.doi10.1016/j.epsr.2017.02.026
dc.identifier.urihttp://hdl.handle.net/10072/408700
dc.description.abstractEqual power-rating inverters operating with different power set-points in either an islanded or grid-connected mode may lead to inter-unit circulating power caused by a large mismatch between power generation and demand during network contingencies (faults on the heavy load side or unintentional islanding). This circulating power may violate the dc-link voltage limit and, as a result, the protection scheme may shut down the inverter and reduce the microgrids reliability. This paper proposes a regulator for controlling the dc-link voltage of the microgrid's inverter during a period of circulating power. It includes a discharging resistor with a series-connected switch across the dc-link capacitor which is turned on through a control algorithm if the dc-link voltage exceeds its pre-defined limit. Case studies of parallel-connected inverters are conducted and their stability assessed through a small-signal analysis. In addition, a realistic microgrid is designed as a low-voltage (LV) network and tested to verify the concept and regulator actions presented. The simulation results validate the effectiveness of the proposed regulator during network contingencies.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherElsevier
dc.relation.ispartofpagefrom233
dc.relation.ispartofpageto244
dc.relation.ispartofjournalElectric Power Systems Research
dc.relation.ispartofvolume147
dc.subject.fieldofresearchElectrical engineering
dc.subject.fieldofresearchElectronics, sensors and digital hardware
dc.subject.fieldofresearchcode4008
dc.subject.fieldofresearchcode4009
dc.subject.keywordsScience & Technology
dc.subject.keywordsEngineering, Electrical & Electronic
dc.subject.keywordsDC-link voltage
dc.titleDC-link voltage regulation of inverters to enhance microgrid stability during network contingencies
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationHossain, MA; Pota, HR; Haruni, AMO; Hossain, MJ, DC-link voltage regulation of inverters to enhance microgrid stability during network contingencies, Electric Power Systems Research, 2017, 147, pp. 233-244
dcterms.licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated2021-10-07T03:03:39Z
gro.rights.copyright© 2017Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorHossain, Md. Alamgir


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