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Proposal of Grid-Forming and Grid-Feeding Converter Control for Transition of AC Microgrid Operating ModesTERAN, R.   , PEREZ, J. , MALDONADO, E. , VILLALOBOS-PINA, F.-J. |
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Author keywords
DC-AC power converters, linear matrix inequalities, microgrids, power conversion, Takagi-Sugeno model
References keywords
grid(29), power(19), control(15), transition(13), microgrid(13), connected(10), access(10), seam(9), islanded(9), mode(8)
Blue keywords are present in both the references section and the paper title.
About this article
Date of Publication: 2023-11-30
Volume 23, Issue 4, Year 2023, On page(s): 23 - 30
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2023.04003
Web of Science Accession Number: 001152960800001
SCOPUS ID: 85182223015
Abstract
Primary controls for performing the transitions between grid-tied mode (GTM) and islanding mode (ISM) of an AC microgrid (MG) are proposed. The MG includes a grid-forming (GFR) unit with a battery pack, and a grid-feeding (GFD) unit with a photovoltaic (PV) array. For GFR and GFD, control schemes are proposed. To design the inner current loop, for the GFR in GTM, Takagi-Sugeno (TS) models and Linear Matrix Inequalities (LMI) are used; whereas, for the DC voltage regulation, the outer loop PI controller is tuned with LMI. For forming the AC voltage at the Point of Common Coupling during ISM, an inner loop LMI controller is used. For the GFD output current control in GTM, an inner loop TSLMI controller is used; and for the maximum power point tracking (MPPT), an outer loop PI controller is used; conversely, to provide the power demanded by the load without complex PV power management algorithms, during ISM, an outer loop PI controller is used. The results showed a good performance of the PI and LMI controllers for the correct MG operation during the transitions, under temperature and irradiation variations, and during load changes. |
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
All rights reserved: Advances in Electrical and Computer Engineering is a registered trademark of the Stefan cel Mare University of Suceava. No part of this publication may be reproduced, stored in a retrieval system, photocopied, recorded or archived, without the written permission from the Editor. When authors submit their papers for publication, they agree that the copyright for their article be transferred to the Faculty of Electrical Engineering and Computer Science, Stefan cel Mare University of Suceava, Romania, if and only if the articles are accepted for publication. The copyright covers the exclusive rights to reproduce and distribute the article, including reprints and translations.
Permission for other use: The copyright owner's consent does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific written permission must be obtained from the Editor for such copying. Direct linking to files hosted on this website is strictly prohibited.
Disclaimer: Whilst every effort is made by the publishers and editorial board to see that no inaccurate or misleading data, opinions or statements appear in this journal, they wish to make it clear that all information and opinions formulated in the articles, as well as linguistic accuracy, are the sole responsibility of the author.
