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Design and Analysis of Grid-Connected Photovoltaic Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A2: Solar Energy and Photovoltaic Systems".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 4789

Special Issue Editor


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Guest Editor
Department of Information Engineering, Infrastructures and Sustainable Energy (D.I.I.E.S.), 89122 Reggio Calabria, Italy
Interests: power systems; power electronics; power quality; renewable energy; photovoltaic systems
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Special Issue Information

Dear Colleagues,

The Guest Editor is inviting submissions to a Special Issue of Energies on the subject area of “Design and Analysis of grid-connected Photovoltaic Systems”. Grid-connected photovoltaic systems range from small-scale (such as roof-based residential ones) to large-scale (such as ground-mounted ones). In order to guarantee the widest diffusion of grid-connected photovoltaic systems, the design criterion of such systems has to take into account their scale level and, as a consequence, a lot of specific respective issues. In small-scale residential photovoltaic plants, some of the most relevant issues are reduction of generation losses caused by mismatches and partial shadings, maximization of self-consumption of the generated power, optimization of building integration, and so on. On the other hand, common questions for large-scale ground-mounted photovoltaic systems are optimal site selection, reduction of environmental impact, maximization of the annual energy production, selection of the most efficient electrical architecture, profitable utilization of solar tracker systems, selection of the most efficient supervisory control and data acquisition system, and so on. Furthermore, the need for a careful design of complex photovoltaic systems and for comprehensive evaluations of its performance certainly calls for the use of accurate simulation models and deep analyses.

This Special Issue solicits papers with original research and studies related to the abovementioned grid-connected PV system topics, including but not limited to the design of residential and larger-scale plants; electricity storage; simulations and performance analyses; algorithms and methods for operational control; analysis of performance variability; mapping of performance differences; solutions for building integration; and new-generation solar trackers.

Papers selected for this Special Issue will be subject to a rigorous peer-review procedure with the aim of rapid and wide dissemination of research results, developments, and applications.

Topics of interest for publication include but are not limited to:

  • Grid integration of photovoltaic systems;
  • Design criteria for small-scale and large-scale photovoltaic systems;
  • Modeling and simulation tools for photovoltaic systems;
  • Analysis and mitigation of partial shading effects on photovoltaic systems;
  • Electricity storage systems for photovoltaic applications;
  • Design and control of power converters for grid integration of photovoltaic systems;
  • Algorithms and control methods for photovoltaic maximum power point trackers;
  • Analysis of power quality issues in grid-connected photovoltaic systems;
  • Solar forecasting for grid integration of photovoltaic systems;
  • Integration of photovoltaic systems in smart-grids;
  • Building integration of photovoltaic systems;
  • Next generation of solar trackers for photovoltaic systems.

Prof. Dr. Rosario Carbone
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

  • Grid-connected PV system
  • Design of PV systems
  • Modeling, simulation, and analysis of PV systems
  • Electricity storage
  • Smart grids
  • BIPV systems
  • PV solar trackers

Published Papers (2 papers)

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Research

18 pages, 5448 KiB  
Article
Experimenting with a Battery-Based Mitigation Technique for Coping with Predictable Partial Shading
by Rosario Carbone and Cosimo Borrello
Energies 2022, 15(11), 4146; https://doi.org/10.3390/en15114146 - 05 Jun 2022
Cited by 2 | Viewed by 1472
Abstract
In this paper, the authors propose to use batteries to improve the performance of grid-connected photovoltaic plants when their photovoltaic fields are subject to partial shading phenomena. Particular attention is devoted to predictable and repetitive partial shadings, such as those that often appear [...] Read more.
In this paper, the authors propose to use batteries to improve the performance of grid-connected photovoltaic plants when their photovoltaic fields are subject to partial shading phenomena. Particular attention is devoted to predictable and repetitive partial shadings, such as those that often appear in urban residential environments. Firstly, battery packs with proper nominal voltage and capacity are connected in parallel to partially shaded photovoltaic submodules. Then, the shaded photovoltaic submodules are properly disconnected and connected to the respective photovoltaic string by using a “battery control unit”, which is operated by taking into account characteristics of the specific partial shading phenomenon to cope with. To demonstrate the effectiveness of the proposed technique, an experimental study is performed to compare the performances of two identical prototypal grid-connected photovoltaic generators subject to identical artificial and repetitive partial shadings. Only one of the photovoltaic generators is equipped with batteries together with their respective battery control unit, while the second one is simply equipped with conventional bypass diodes. The main advantages of the proposed technique are a greatly improved whole power generation together with the elimination of hotspot phenomena. Full article
(This article belongs to the Special Issue Design and Analysis of Grid-Connected Photovoltaic Systems)
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23 pages, 979 KiB  
Article
DC-Link Capacitor Diagnosis in a Single-Phase Grid-Connected PV System
by Ramiro Alejandro Plazas-Rosas, Martha Lucia Orozco-Gutierrez, Giovanni Spagnuolo, Édinson Franco-Mejía and Giovanni Petrone
Energies 2021, 14(20), 6754; https://doi.org/10.3390/en14206754 - 17 Oct 2021
Cited by 7 | Viewed by 2670
Abstract
The DC-link capacitor is one of the components that are more prone to faults in energy-distributed systems based on voltage source inverters. A predictive maintenance approach should allow to foresee the risk of an unexpected system shutdown. In this study, a two-stage diagnostic [...] Read more.
The DC-link capacitor is one of the components that are more prone to faults in energy-distributed systems based on voltage source inverters. A predictive maintenance approach should allow to foresee the risk of an unexpected system shutdown. In this study, a two-stage diagnostic approach that is aimed at determining the health status of the DC-link capacitor in a single-phase grid-connected PV system was proposed. The equivalent series resistance (ESR) and the capacitance (C) values were used as indicators in the estimation of the degradation stage. Electrochemical impedance spectroscopy (EIS) was used to estimate the impedance curve of the DC-link capacitor, and a multi-fitting algorithm allowed us to determine the ESR and C parameters. A comparison between the estimated values C and ESR and the nominal values was used to quantify the fault severity. It was demonstrated that the EIS allowed the determination of the capacitor impedance regardless of the actual operating conditions of the photovoltaic generator, such as during irradiance changes and with the maximum power point algorithm turned off. By using the capacitor simplified model and a multi-fitting algorithm, the C and ESR values were estimated with an error that was lower than 1%. An analysis of the hardware required to implement the proposed approach in real applications by achieving the desired accuracy was also proposed. Full article
(This article belongs to the Special Issue Design and Analysis of Grid-Connected Photovoltaic Systems)
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