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Microgrids 2022

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A1: Smart Grids and Microgrids".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 5003

Special Issue Editor


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Guest Editor
Department of Electronic Engineering, Technical University of Catalonia, Barcelona, Spain
Interests: microgrids; renewable energy systems; neuroscience-based artificial intelligence; digital twins; cybersecurity
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Microgrids are small-scale energy grids that can operate independently or autonomously from the main energy grid. They can contain any form of generated energy, including electricity, heat, etc., for storage and consumption. The concept is supposed to eliminate or reduce the use of energy transmission systems and to produce energy near consumption points, thus constituting small distribution systems. This new energy paradigm is changing the way we conceive of electrical, thermal, gas, or water grids. This Special Issue includes but is not limited to the following topics:

  • AC, DC, and AC–DC hybrid microgrids;
  • Power electronics-based microgrids;
  • Small-scale renewable energies and storage for microgrids;
  • Micro combined heat and power (CHP) systems for microgrids;
  • Multiple microgrid clusters;
  • Microgrids and nanogrids for rural areas and in developing countries;
  • Microgrids for all/hybrid electrical ships and green ports;
  • Microgrids for electrical vehicle charging stations;
  • Microgrids space applications, including satellites and spacecraft;
  • Advanced control techniques for microgrids;
  • Smart metering and power quality for microgrids;
  • The Internet of Things and energy internet for multiple microgrids;
  • Reviews on the state of the art in the area of microgrids.

Prof. Dr. Josep M. Guerrero
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • microgrids
  • renewable energy

Published Papers (2 papers)

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Research

27 pages, 17395 KiB  
Article
Development of a DC Microgrid with Decentralized Production and Storage: From the Lab to Field Deployment in Rural Africa
by Lucas Richard, Cédric Boudinet, Sanda A. Ranaivoson, Jean Origio Rabarivao, Archille Elia Befeno, David Frey, Marie-Cécile Alvarez-Hérault, Bertrand Raison and Nicolas Saincy
Energies 2022, 15(18), 6727; https://doi.org/10.3390/en15186727 - 14 Sep 2022
Cited by 12 | Viewed by 1876
Abstract
The rural electrification of Sub-Saharan Africa and South-East Asia is crucial to end the energy poverty in which around 1 billion people are trapped. Swarm electrification, i.e., the progressive building of decentralized and decarbonized electric infrastructure in a bottom-up manner, tackles rural electrification [...] Read more.
The rural electrification of Sub-Saharan Africa and South-East Asia is crucial to end the energy poverty in which around 1 billion people are trapped. Swarm electrification, i.e., the progressive building of decentralized and decarbonized electric infrastructure in a bottom-up manner, tackles rural electrification challenges by quickly providing modern and reliable electricity services to unelectrified communities while fostering local socio-economic development. This paper follows the technological approach of this electrification model and presents the development of a DC microgrid with decentralized production and storage suitable for rural electrification. This DC microgrid aims at interconnecting nanogrids, small collective autonomous power units composed of a solar panel and a lead–acid battery for 4 to 6 households, to increase the electrical services brought to the community and enhance the economic sustainability of this rural electrification model. The design of the proposed microgrid as well as its control algorithm are thoroughly addressed and tested from software simulations and experimental testing to field deployment in Madagascar. Extensive software, experimental and field-tests results are illustrated, and the microgrid design feedback is given. This paper overall validates the proper operation of the proposed microgrid, confirming the technical feasibility of the swarm electrification approach. Full article
(This article belongs to the Special Issue Microgrids 2022)
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17 pages, 6845 KiB  
Article
Sliding Mode Controller for Parameter-Variable Load Sharing in Islanded AC Microgrid
by Mojtaba Hajihosseini, Vinko Lešić, Husam I. Shaheen and Paknoosh Karimaghaee
Energies 2022, 15(16), 6029; https://doi.org/10.3390/en15166029 - 19 Aug 2022
Cited by 5 | Viewed by 1464
Abstract
Controlling voltage, frequency, and current in an islanded microgrid is a challenging problem because the distributed generation sources, stochastic and intermittent in nature, are not connected to the main electricity network to provide stable and clean energy. Therefore, the design of a robust [...] Read more.
Controlling voltage, frequency, and current in an islanded microgrid is a challenging problem because the distributed generation sources, stochastic and intermittent in nature, are not connected to the main electricity network to provide stable and clean energy. Therefore, the design of a robust controller to control the output parameters of the islanded microgrid and suppress load variations and disturbances is essential. In this paper, a hysteresis controller is proposed and designed to control the output voltage of an islanded AC microgrid and an improved sliding mode controller (SMC) based on adaptive control principle is designed to control the current of the microgrid. The current controller consists of two parts: An adaptation part, which aims to eliminate disturbances and system uncertainties, and a second part, which aims to deal with the tracking problem of the system under parameter-varying topologies. The adaptation strategy has the advantage of solving the gain tuning problem and chattering reduction. It also requires limited information about disturbance and uncertainties of the system. To validate the proposed control methodology and show its effectiveness, a case study of a simulated islanded microgrid is presented. The results show that the proposed controllers can effectively control the current and voltage underload changes and increase the stability and resilience of the microgrid. The results also reveal that the performance of the proposed controller in terms of total harmonic distortion (THD) and dynamic response overcome the performance of conventional controller by a 4× reduction in THD and 40–200× reduction in settling time. Full article
(This article belongs to the Special Issue Microgrids 2022)
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