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Electronics
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Feature Papers in Power Electronics
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Feature Papers in Power Electronics

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 19580

Special Issue Editors

Prof. Dr. Luis M. Fernández-Ramírez

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Guest Editor
Research Group in Sustainable and Renewable Electrical Technologies (PAIDI-TEP023), Department of Electrical Engineering, Higher Technical School of Engineering of Algeciras, University of Cadiz, Algeciras, Spain
Interests: smart cities; smart grids; microgrids; renewable energy; wind energy; photovoltaic solar energy; energy storage systems; hydrogen and fuel cells; hybrid electric systems; electric vehicles; electric power systems; power converters and energy management/control systems
Special Issues, Collections and Topics in MDPI journals
Dr. Jesus C. Hernandez

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Guest Editor
Electrical Engineering Department, University of Jaen, Campus Las Lagunillas, S/N, 23071 Jaen, Spain
Interests: power electronics; renewable systems; microgrids; electric vehicles; power quality; power systems simulation; metaheuristic optimization
Special Issues, Collections and Topics in MDPI journals
Dr. Taha Selim Ustun

E-Mail Website
Guest Editor
Power System Automation and Cybersecurity Lab, Fukushima Renewable Energy Institute, Advanced Industrial Science and Technology (AIST), Koriyama 963-0298, Japan
Interests: power system protection; renewable energy; microgrid design; electric vehicle–grid integration; smart grid communications; substation automation; IEC 61850; IEC 62351; cybersecurity for power systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Power electronics has emerged as a key technology in the conversion and control of electrical power in multiple applications: electric drives and generators, renewable energy systems, energy storage systems, smart cities, smart grids, power systems, transport (vehicles, aircraft, ships, and others), industrial, medical, military, telecommunications, consumable and home apparatus.

This Special Issue is devoted to publishing original research and state-of-the-art review papers on emerging technologies and trends in power electronics, including components, circuits, design, modelling, simulation, control, implementation, testing and analysis of power electronics and their applications.

The subject areas include but are not limited to:

  • Power electronic circuits: DC/DC, DC/AC and AC/AC power converters.
  • Power electronic components: switching devices, diodes, inductors, capacitors, transformers, filters, sensors, etc.
  • Power electronic control: modulation techniques, control techniques, control systems, etc.
  • Instrumentation, monitoring and IoT of power electronics and their applications.
  • EMI/EMC in power electronics.
  • Electric drives and generators.
  • Power electronics for renewable energy systems.
  • Power electronics for energy storage systems.
  • Power electronics for smart cities.
  • Power electronics for smart grids.
  • Power electronics for power systems: FACTS, HVDC systems, etc.
  • Power electronics for transport applications (electric vehicles, trains, aircrafts, ships, etc.).
  • Power electronics for industrial applications.
  • Power electronics for medical applications.
  • Power electronics for military applications.
  • Power electronics for telecommunication applications.
  • Power electronics for energy harvesting systems.
  • Power electronics for consumable applications.
  • Power electronics for home appliances.

Prof. Dr. Luis M. Fernández-Ramírez
Dr. J. C. Hernandez
Prof. Dr. Taha Selim Ustun
Guest Editors

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. Electronics 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 2400 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.

Published Papers (6 papers)

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Research

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18 pages, 2978 KiB  
Article
Improvement of the Coupling of Renewable Sources through Z-Source Converters Based on the Study of Their Dynamic Model
by Enrique Lanagran, María Victoria Ortega, Manuel Ortega, Juan Pedro Roa and Pablo García-Triviño
Electronics 2022, 11(13), 2074; https://doi.org/10.3390/electronics11132074 - 01 Jul 2022
Cited by 1 | Viewed by 1180
Abstract
The classical coupling of renewable energy sources greatly limits the coupling power and the output voltage of the coupled sources. Moreover, it does not eliminate the randomness of the sources. In this work a renewable sources coupling with high randomness is obtained by [...] Read more.
The classical coupling of renewable energy sources greatly limits the coupling power and the output voltage of the coupled sources. Moreover, it does not eliminate the randomness of the sources. In this work a renewable sources coupling with high randomness is obtained by series connection of the output terminals of Z-source converters. To achieve the coupling, the stationary and dynamic models of a Z-source-based converter have been studied. With the results of the stationary model, the converter behavior has been evaluated as a function of its parameters and a method for calculating the Z-network parameters has been implemented. Moreover, with the dynamic model a controller has been designed for all the converters. The main contributions of this work are the coupling of the sources, the stationary and dynamic models obtained and their analysis. The coupling achieves a stable supply avoiding the sources’ randomness reaching the load. A system composed of a wind turbine, a set of photovoltaic panels and two groups of batteries has been modeled. To study the system behavior and the supply quality, several aggressive tests have been forced and experimental evidence has also been provided. Full article
(This article belongs to the Special Issue Feature Papers in Power Electronics)
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15 pages, 4125 KiB  
Article
Proportional Hysteresis Band Control for DC Voltage Stability of Three-Phase Single-Stage PV Systems
by Hassan Khalkhali, Arman Oshnoei and Amjad Anvari-Moghaddam
Electronics 2022, 11(3), 452; https://doi.org/10.3390/electronics11030452 - 02 Feb 2022
Cited by 4 | Viewed by 1673
Abstract
Ensuring the stability of DC-link voltage in grid-connected photovoltaic (PV) systems plays a critical role in their reliable and continuous operation. DC voltage fluctuation and, in the worst case, DC voltage collapse will dramatically hamper real and reactive power delivery to the grid. [...] Read more.
Ensuring the stability of DC-link voltage in grid-connected photovoltaic (PV) systems plays a critical role in their reliable and continuous operation. DC voltage fluctuation and, in the worst case, DC voltage collapse will dramatically hamper real and reactive power delivery to the grid. This is more the case in single-stage inverters with no DC-DC boost stage, and the DC voltage has a varying nature. This paper proposes a new control approach for ensuring DC-link voltage stability in single-stage PV systems. The proposed control strategy is based on an adaptive hysteresis band controller (HBC), supplementing the conventional control blocks. This strategy offers the capability to prevent fast discharge of DC-link capacitor and keeps it within acceptable limits by quickly modifying phase shift applied to inverter PWM through quick calculations. Results show that the approach greatly improves PV system performance, in various operating modes. The proposed control scheme is implemented in the real-time simulator, OPAL-RT, OP5600 to verify its applicability and effectiveness in real time. Full article
(This article belongs to the Special Issue Feature Papers in Power Electronics)
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22 pages, 3438 KiB  
Article
Optimization Strategy of Configuration and Scheduling for User-Side Energy Storage
by Yushan Liu, Qianqian Liu, Huaimin Guan, Xiao Li, Daqiang Bi, Yingjun Guo and Hexu Sun
Electronics 2022, 11(1), 120; https://doi.org/10.3390/electronics11010120 - 30 Dec 2021
Cited by 5 | Viewed by 2050
Abstract
In order to reduce the impact of load power fluctuations on the power system and ensure the economic benefits of user-side energy storage operation, an optimization strategy of configuration and scheduling based on model predictive control for user-side energy storage is proposed in [...] Read more.
In order to reduce the impact of load power fluctuations on the power system and ensure the economic benefits of user-side energy storage operation, an optimization strategy of configuration and scheduling based on model predictive control for user-side energy storage is proposed in this study. Firstly, considering the cost and benefits of energy storage comprehensively, an energy storage configuration optimization model with the highest annualized net income as the goal is built to determine the parameters for configuring energy storage. Then, with the goal of maximizing the profit during the scheduling period, pre-month scheduling optimization model, day-ahead scheduling optimization model and intra-day scheduling optimization model are established. The goal of the pre-month scheduling optimization model is to determine the maximum monthly demand; part of the scheduling results in the day-ahead scheduling optimization model directly participate in the intra-day scheduling; the intra-day rolling optimization relies on the advantages of real-time feedback and closed-loop scheduling to smooth out power fluctuations caused by load forecast errors. Finally, the configuration and economic benefit of lithium iron phosphate batteries, lead-carbon batteries and sodium-sulfur batteries are analyzed and compared, and scheduling analysis is performed. The simulation results show that the proposed optimization method can cut peaks and fill valleys, ensure the economic benefits of users, and provide guidance for users to invest in energy storage. Full article
(This article belongs to the Special Issue Feature Papers in Power Electronics)
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Review

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24 pages, 2964 KiB  
Review
Solid State Transformers: A Critical Review of Projects with Relevant Prototypes and Demonstrators
by David Cervero, Maria Fotopoulou, Jesús Muñoz-Cruzado, Dimitrios Rakopoulos, Fotis Stergiopoulos, Nikos Nikolopoulos, Spyros Voutetakis and José Francisco Sanz
Electronics 2023, 12(4), 931; https://doi.org/10.3390/electronics12040931 - 13 Feb 2023
Cited by 9 | Viewed by 7623
Abstract
The ongoing energy transition has changed the architecture of electricity networks in ways that conventional power transformers are not able to cope with the new required functionalities. For this purpose, the solid state transformer (SST), which comprises state of the art power electronics [...] Read more.
The ongoing energy transition has changed the architecture of electricity networks in ways that conventional power transformers are not able to cope with the new required functionalities. For this purpose, the solid state transformer (SST), which comprises state of the art power electronics with galvanic isolation to interconnect two separate alternating current (AC) or direct current (DC) power grids, is considered to be the dominant solution. The purpose of this paper is to provide a practical, application-oriented review of the SST. In this context, the main functionalities and possible applications of the SST are presented, including smart grids (SGs), data centres, railways, offshore wind farms, etc. Furthermore, the main developed SST prototypes are analysed with special focus on the related projects, demonstrators, stakeholders and rated values, e.g., voltage, switching frequency and power. The analysis is concluded with the future trends and challenges regarding the wider implementation of SST technology in the electrical grid. Full article
(This article belongs to the Special Issue Feature Papers in Power Electronics)
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29 pages, 4017 KiB  
Review
A Comparative Study on System Profit Maximization of a Renewable Combined Deregulated Power System
by Jayanta Bhusan Basu, Subhojit Dawn, Pradip Kumar Saha, Mitul Ranjan Chakraborty and Taha Selim Ustun
Electronics 2022, 11(18), 2857; https://doi.org/10.3390/electronics11182857 - 09 Sep 2022
Cited by 11 | Viewed by 2151
Abstract
Electrical energy plays a key role in the development of the social as well as the economic front. The power sector has historically been owned and operated by state agencies due to its tremendous importance. It has been restructured over time, and the [...] Read more.
Electrical energy plays a key role in the development of the social as well as the economic front. The power sector has historically been owned and operated by state agencies due to its tremendous importance. It has been restructured over time, and the power market is being deregulated. In terms of consumer prices, efficiency, and environmental implications, both regulated and deregulated electricity markets offer advantages and disadvantages. Policy-based techniques are typically used in regulated markets to address the costs of fossil-fuel resources and boost the viability of renewable energy sources. Renewables can be integrated into deregulated markets through a combination of regulatory and market-based measures to extend the system’s economic stability which has been deployed in this paper. As the need for energy has expanded dramatically over the last few decades, particularly in developing countries, the amount of greenhouse gas emissions has climbed rapidly, as have fuel prices, which are the key driving forces behind initiatives to use renewable energy sources more effectively. Despite the apparent benefits of renewable energy, it has significant downsides, such as generation of optimization methods applied to renewable consistency, because most renewable energy supplies are climate-dependent, necessitating complicated design, planning, and control optimization methods. There have been numerous optimization strategies applied to the renewable integrated deregulated electricity system. With the increased use of renewable energy, energy storage technology has grown in importance, as these devices can capture electricity generated by renewables during off-peak demand hours and put it back into the grid during peak demand periods. Using stored renewable energy instead of adding generation based on fossil fuel can help to minimize greenhouse gas emissions. There is an interest in better utilizing available power system capacity by implementing FACTS to maximize the social benefit in a deregulated system. As a result, effective FACTS device placement provides novel control capabilities in both steady-state power flow regulation and dynamic stability control. This study reviews several aspects of renewable integrated deregulated power systems and provides a clear picture of the most recent research developments on this subject. The main objectives of the reviews are the maximization of system profit, maximization of social welfare, and minimization of system generation cost and loss by optimal placement of energy storage devices and FACTS controllers. Full article
(This article belongs to the Special Issue Feature Papers in Power Electronics)
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18 pages, 1289 KiB  
Review
A Review of the State of the Art of Industrial Microgrids Based on Renewable Energy
by Daniel Gutiérrez-Oliva, Antonio Colmenar-Santos and Enrique Rosales-Asensio
Electronics 2022, 11(7), 1002; https://doi.org/10.3390/electronics11071002 - 24 Mar 2022
Cited by 15 | Viewed by 2915
Abstract
Electric microgrids based mainly on renewable energies have seen a big expansion in recent years due to the great advantages they present against fossil fuels. Nowadays different governments are becoming aware of the use of environmentally friendly energies, so progressive investment has been [...] Read more.
Electric microgrids based mainly on renewable energies have seen a big expansion in recent years due to the great advantages they present against fossil fuels. Nowadays different governments are becoming aware of the use of environmentally friendly energies, so progressive investment has been granted to the consumers in Spain. Many microgrids have been installed in both connected and isolated circumstances, and this fact brings new challenges regarding the technical and economic points of view. This study aims to delve into electrical microgrids based on renewable energies applied in industrial facilities through a review of the literature associated with the study of general microgrids. It later focuses on the relationships between renewable energies and industrial environments. A brief reference is made to the use of energy storage systems in industrial installations depicting the most used systems. This paper presents a review of the state of the art of microgrids from distributed energy resources technologies to industrial microgrids optimization, with the primary objective of providing insight on current trends and directions in research and further identifying areas in need of further development. Full article
(This article belongs to the Special Issue Feature Papers in Power Electronics)
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