Improved methods for controlling interconnected DC microgrids in rural villages
File(s)
Published version
Author(s)
Hategekimana, Pascal
Junyent-Ferre, Adria
Ntagwirumugara, Etienne
Bernuz, Joan Marc Rodriguez
Type
Journal Article
Abstract
Interconnected Microgrid (IMG) networks have been suggested as the best to build electrical networks in remote villages far from the main electricity grid by interconnecting the nearby distributed energy resources (DERs) through power electronic converters. Interconnecting different DERs results in voltage deviation with unequal power-sharing, while voltage performance is a significant challenge. The control strategies for these converters are essential in the operational stability of any IMG network under study. In this paper, we propose an improved droop control method aiming to manage the power flow among the IMGs by maintaining the constant desired voltages in the network with minimum voltage deviation, resulting in the minimization of power losses. We found that the minimum voltage deviation at the load side (converter-3) was between 0.58 and 0.56 V, while the voltage deviation for both converter-1 and converter-2 remained below 0.5 V. This leads to efficient voltage regulation, resulting in the stability of an IMG network. To verify the feasibility of this method, MATLAB/SIMULINK has been used.
Date Issued
2024
Date Acceptance
2024-01-11
Citation
AIMS Energy, 2024, 12 (1), pp.214-234
ISSN
2333-8326
Publisher
AIMS Press
Start Page
214
End Page
234
Journal / Book Title
AIMS Energy
Volume
12
Issue
1
Copyright Statement
© 2024 the Author(s), licensee AIMS Press. This is an open access
article distributed under the terms of the Creative Commons
Attribution License (http://creativecommons.org/licenses/by/4.0)
article distributed under the terms of the Creative Commons
Attribution License (http://creativecommons.org/licenses/by/4.0)
License URL
Identifier
https://www.aimspress.com/article/doi/10.3934/energy.2024010
Subjects
circulating current
CONTROL STRATEGIES
droop controllers
Energy & Fuels
IMPROVED DROOP CONTROL
load-sharing
microgrid
Science & Technology
Technology
voltage regulation
Publication Status
Published
Date Publish Online
2024-01-29