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Electronics
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Advancements in Power Electronics Conversion Technologies
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Advancements in Power Electronics Conversion Technologies

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

Deadline for manuscript submissions: 30 November 2024 | Viewed by 6423

Special Issue Editor

Dr. Wilian Paul Arevalo Cordero

E-Mail Website
Guest Editor
1. Department of Electrical, Electronics and Telecommunications Engineering (DEET), University of Cuenca, Balzay Campus, Cuenca 010107, Ecuador
2. Department of Electrical Engineering, University of Jaen, 23700 Linares, Spain
Interests: advancements in energy storage technologies; innovations in electrical protection systems; power quality enhancement strategies; power smoothing techniques in electrical networks; batteries
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue of the journal Electronics, ‘Advancements in Power Electronics Conversion Technologies’, aims to provide a platform for researchers, engineers, and experts to share their works that address the recent cutting-edge innovations in the field of power electronics conversion technologies, grid integration, energy management, and control strategies for photovoltaic systems. Through this endeavour, we seek to disseminate valuable insights which can help to enhance the efficiency, reliability, and sustainability of photovoltaic power generation, thereby advancing the renewable energy landscape. We encourage submissions of papers that explore novel concepts, methodologies, and applications, thus pushing the boundaries of photovoltaic technology, fostering a deeper understanding of its potential and promoting its widespread adoption in the global energy landscape.

Dr. Wilian Paul Arevalo Cordero
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. 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.

Keywords

  • power electronics
  • renewable energy
  • power conversion technologies
  • grid integration
  • energy management
  • control strategies
  • photovoltaic systems
  • efficiency
  • sustainability
  • innovations

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Published Papers (6 papers)

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Research

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26 pages, 12756 KiB  
Article
Symmetrical Multilevel High Voltage-Gain Boost Converter Control Strategy for Photovoltaic Systems Applications
by Mohamed Lamine Touré, Mamadou Baïlo Camara and Brayima Dakyo
Electronics 2024, 13(13), 2565; https://doi.org/10.3390/electronics13132565 - 29 Jun 2024
Viewed by 956
Abstract
This paper proposes a Symmetric High Voltage-Gain (SHVG) boost converter control for photovoltaic system applications. The concept is based on a multilevel boost converter configuration, which presents an advantage compared to a classic boost converter such as the ability to transfer a high [...] Read more.
This paper proposes a Symmetric High Voltage-Gain (SHVG) boost converter control for photovoltaic system applications. The concept is based on a multilevel boost converter configuration, which presents an advantage compared to a classic boost converter such as the ability to transfer a high amount of power with less stress on the power electronics components in the high voltage-gain conditions. This advantage allows the power losses in the converter to be reduced. A mathematical-based voltage model of the PV system using variable series resistance depending on solar irradiance and the temperature is proposed. This model is connected to an SHVG boost converter to supply the load’s power. A control strategy of the DC-bus voltage with maximum power point tracking (MPPT) from the PV system using PI controllers is developed. The contributions of the paper are focused on the SHVG operating analysis with the passive components’ sizing, and the DC-bus voltage control with maximum power point tracking of the PV systems in dynamic operating conditions. The performances of the proposed control are evaluated through simulations, where the results are interesting for high-power photovoltaic applications. Full article
(This article belongs to the Special Issue Advancements in Power Electronics Conversion Technologies)
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17 pages, 26853 KiB  
Article
On the Influence of Fractional-Order Resonant Capacitors on Zero-Voltage-Switching Quasi-Resonant Converters
by Wangzifan Cao and Xi Chen
Electronics 2024, 13(13), 2562; https://doi.org/10.3390/electronics13132562 - 29 Jun 2024
Cited by 1 | Viewed by 688
Abstract
This paper focuses on the influence of the fractional-order (FO) resonant capacitor on the zero-voltage-switching quasi-resonant converter (ZVS QRC). The FO impedance model of the capacitor is introduced to the circuit model of the ZVS QRC; hence, a piecewise smooth FO model is [...] Read more.
This paper focuses on the influence of the fractional-order (FO) resonant capacitor on the zero-voltage-switching quasi-resonant converter (ZVS QRC). The FO impedance model of the capacitor is introduced to the circuit model of the ZVS QRC; hence, a piecewise smooth FO model is developed for the converter. Numerical solutions of the converter are obtained by using both the fractional Adams–Bashforth–Moulton (F-ABM) method and Oustaloup’s rational approximation method. In addition, the analytical solution of the converter is obtained by the Grünwald–Letnikov (GL) definition, which reveals the influence of the FO resonant capacitor on the zero-crossing point (ZCP) and resonant state of the converter. An experimental platform was built to verify the results of the theoretical analysis and numerical calculation. Full article
(This article belongs to the Special Issue Advancements in Power Electronics Conversion Technologies)
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20 pages, 5758 KiB  
Article
Decentralized Virtual Impedance Control for Power Sharing and Voltage Regulation in Islanded Mode with Minimized Circulating Current
by Mubashir Hayat Khan, Shamsul Aizam Zulkifli, Nedim Tutkun, Ismail Ekmekci and Alessandro Burgio
Electronics 2024, 13(11), 2142; https://doi.org/10.3390/electronics13112142 - 30 May 2024
Cited by 1 | Viewed by 925
Abstract
In islanded operation, precise power sharing is an immensely critical challenge when there are different line impedance values among the different-rated inverters connected to the same electrical network. Issues in power sharing and voltage compensation at the point of common coupling, as well [...] Read more.
In islanded operation, precise power sharing is an immensely critical challenge when there are different line impedance values among the different-rated inverters connected to the same electrical network. Issues in power sharing and voltage compensation at the point of common coupling, as well as the reverse circulating current between inverters, are problems in existing control strategies for parallel-connected inverters if mismatched line impedances are not addressed. Therefore, this study aims to develop an improved decentralized controller for good power sharing with voltage compensation using the predictive control scheme and circulating current minimization between the inverters’ current flow. The controller was developed based on adaptive virtual impedance (AVI) control, combined with finite control set–model predictive control (FCS-MPC). The AVI was used for the generation of reference voltage, which responded to the parameters from the virtual impedance loop control to be the input to the FCS-MPC for a faster tracking response and to have minimum tracking error for better pulse-width modulation generation in the space-vector form. As a result, the circulating current was maintained at below 5% and the inverters were able to share an equal power based on the load required. At the end, the performance of the AVI-based control scheme was compared with those of the conventional and static-virtual-impedance-based methods, which have also been tested in simulation using MATLAB/Simulink software 2021a version. The comparison results show that the AVI FCS MPC give 5% error compared to SVI at 10% and conventional PI at 20%, in which AVI is able to minimize the circulating current when mismatch impedance is applied to the DGs. Full article
(This article belongs to the Special Issue Advancements in Power Electronics Conversion Technologies)
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18 pages, 9295 KiB  
Article
Performance Evaluation of the B4 Topology for Implementing Grid-Connected Inverters in Microgrids
by Enric Torán, Marian Liberos, Iván Patrao, Raúl González-Medina, Gabriel Garcerá and Emilio Figueres
Electronics 2024, 13(9), 1755; https://doi.org/10.3390/electronics13091755 - 2 May 2024
Viewed by 889
Abstract
The B4 topology is an interesting alternative to the conventional B6 inverter due to its reduced number of parts and lower cost. Although it has been widely used in the past, especially in low-power motor drive applications, its application as a grid-connected inverter [...] Read more.
The B4 topology is an interesting alternative to the conventional B6 inverter due to its reduced number of parts and lower cost. Although it has been widely used in the past, especially in low-power motor drive applications, its application as a grid-connected inverter is an open area of research. In this regard, this paper analyses the feasibility of the B4 inverter topology for grid-connected applications. A versatile 7 kW inverter prototype, which may be configured as B4 and B6, was built, allowing for a comprehensive evaluation of the performance of both topologies. Through an analytical study and experimental tests, the performance of the B4 and B6 topologies was comparatively evaluated in terms of efficiency, total harmonic distortion of line currents, current unbalance, cost, and mean time between failures. The study was carried out in the context of microgrid systems, highlighting their role in the integration of renewable energy and distributed generation. Full article
(This article belongs to the Special Issue Advancements in Power Electronics Conversion Technologies)
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19 pages, 12675 KiB  
Article
Multi-Power Carriers-Based Integrated Control for Series-Cascaded Microgrid
by Salman Ali, Santiago Bogarra Rodríguez, Muhammad Mansoor Khan and Felipe Córcoles
Electronics 2024, 13(2), 446; https://doi.org/10.3390/electronics13020446 - 21 Jan 2024
Viewed by 1178
Abstract
Series-cascaded microgrids (SCMGs) indeed provide control flexibility and high-voltage synthesis capabilities. However, the power distribution in SCMGs based on distributed generation (DG) sources stays understudied. This paper proposes an SCMG topology using non-dispatchable DG sources and battery energy storage, with an integrated power-routing [...] Read more.
Series-cascaded microgrids (SCMGs) indeed provide control flexibility and high-voltage synthesis capabilities. However, the power distribution in SCMGs based on distributed generation (DG) sources stays understudied. This paper proposes an SCMG topology using non-dispatchable DG sources and battery energy storage, with an integrated power-routing control. The objective is to address power distribution limitations and stabilize SCMG output voltages under varying conditions. A case study validates the control methodology, considering zero irradiation levels for photovoltaic (PV) and maximum power sharing. The battery modules play a crucial role by providing power, voltage support, and maintaining capacitor voltage at a reference value of a PV-integrated module. This is achieved through a third harmonic current injection in the fundamental frequency current, coupled with proportional power distribution using a third harmonic power signal. The effectiveness of the proposed SCMG topology and control is demonstrated through MATLAB/Simulink and hardware-in-loop analyses (Typhoon HIL). The results present an extended power distribution between series-cascaded DG sources-based units while ensuring stable SCMG output voltages, even in adverse conditions like PV module intermittency. Future work aims to extend the proposed topology to a ring/delta-connection SCMG, where third harmonic current aids power distribution among SCMG legs and between series-cascaded DG sources-based units. Full article
(This article belongs to the Special Issue Advancements in Power Electronics Conversion Technologies)
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Review

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30 pages, 3335 KiB  
Review
Optimizing Microgrid Planning for Renewable Integration in Power Systems: A Comprehensive Review
by Klever Quizhpe, Paul Arévalo, Danny Ochoa-Correa and Edisson Villa-Ávila
Electronics 2024, 13(18), 3620; https://doi.org/10.3390/electronics13183620 - 12 Sep 2024
Viewed by 1057
Abstract
The increasing demand for reliable and sustainable electricity has driven the development of microgrids (MGs) as a solution for decentralized energy distribution. This study reviews advancements in MG planning and optimization for renewable energy integration, using the Preferred Reporting Items for Systematic Reviews [...] Read more.
The increasing demand for reliable and sustainable electricity has driven the development of microgrids (MGs) as a solution for decentralized energy distribution. This study reviews advancements in MG planning and optimization for renewable energy integration, using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses methodology to analyze peer-reviewed articles from 2013 to 2024. The key findings highlight the integration of emerging technologies, like artificial intelligence, the Internet of Things, and advanced energy storage systems, which enhance MG efficiency, reliability, and resilience. Advanced modeling and simulation techniques, such as stochastic optimization and genetic algorithms, are crucial for managing renewable energy variability. Lithium-ion and redox flow battery innovations improve energy density, safety, and recyclability. Real-time simulations, hardware-in-the-loop testing, and dynamic power electronic converters boost operational efficiency and stability. AI and machine learning optimize real-time MG operations, enhancing predictive analysis and fault tolerance. Despite these advancements, challenges remain, including integrating new technologies, improving simulation accuracy, enhancing energy storage sustainability, ensuring system resilience, and conducting comprehensive economic assessments. Further research and innovation are needed to realize MGs’ potential in global energy sustainability fully. Full article
(This article belongs to the Special Issue Advancements in Power Electronics Conversion Technologies)
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