dc.contributor.author | Hossain, MA | |
dc.contributor.author | Pota, HR | |
dc.contributor.author | Haruni, AMO | |
dc.contributor.author | Hossain, MJ | |
dc.date.accessioned | 2022-02-16T02:45:25Z | |
dc.date.available | 2022-02-16T02:45:25Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0378-7796 | |
dc.identifier.doi | 10.1016/j.epsr.2017.02.026 | |
dc.identifier.uri | http://hdl.handle.net/10072/408700 | |
dc.description.abstract | Equal 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.peerreviewed | Yes | |
dc.language | English | |
dc.publisher | Elsevier | |
dc.relation.ispartofpagefrom | 233 | |
dc.relation.ispartofpageto | 244 | |
dc.relation.ispartofjournal | Electric Power Systems Research | |
dc.relation.ispartofvolume | 147 | |
dc.subject.fieldofresearch | Electrical engineering | |
dc.subject.fieldofresearch | Electronics, sensors and digital hardware | |
dc.subject.fieldofresearchcode | 4008 | |
dc.subject.fieldofresearchcode | 4009 | |
dc.subject.keywords | Science & Technology | |
dc.subject.keywords | Engineering, Electrical & Electronic | |
dc.subject.keywords | DC-link voltage | |
dc.title | DC-link voltage regulation of inverters to enhance microgrid stability during network contingencies | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dcterms.bibliographicCitation | Hossain, 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.license | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.date.updated | 2021-10-07T03:03:39Z | |
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.hasfulltext | Full Text | |
gro.griffith.author | Hossain, Md. Alamgir | |