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Energies
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Recent Advances in Power Electronics and Wireless Power Transfer Systems
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Recent Advances in Power Electronics and Wireless Power Transfer Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F3: Power Electronics".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 3655

Special Issue Editors

Prof. Dr. Kalina Detka

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Guest Editor
Department of Marine Electronics, Faculty of Electrical Engineering, Gdynia Maritime University, Morska 83, 81-225 Gdynia, Poland
Interests: power electronics; power converters; wireless power transfer; energy storage technology; magnetic elements; modelling electronic components
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Krzysztof Górecki

E-Mail Website
Guest Editor
Department of Marine Electronics, Faculty of Electrical Engineering, Gdynia Maritime University, Morska 83, 81-225 Gdynia, Poland
Interests: power electronics; power converters; wireless power transfer; energy storage technology; magnetic elements; modelling electronic components and systems; IGBT; MOSFET; BJT; power LEDs; electrothermal analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recently, there has been a significant interest in wireless power transfer systems. They are widely used not only in the electronics industry but also in the automotive and medical industries. In each case, the aim is to miniaturize these systems while maintaining their high energy efficiency. Such systems, in general, apart from the transmitter and the receiver, also contain different types of power conversion systems that affect the value of the transferred and converted power, and thus, the energy efficiency of such a solution.

The effect of miniaturization is also observed in modern power electronic systems. Increasing the switching frequency of switching devices imposes limitations on the applicability of some semiconductor devices and increases the power losses in magnetic elements. This is also accompanied by an increase in the internal temperature of the electronic components included in these systems.

Therefore, the purpose of this Special Issue is to indicate new trends and research in the field of new power electronic solutions and wireless power supply systems.

Prof. Dr. Kalina Detka
Prof. Dr. Krzysztof Górecki
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. 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

  • power semiconductor devices
  • air core transformers
  • wireless power transfer
  • WPT systems
  • power supply
  • power converters
  • pulse transformers
  • inductors
  • thermal parameters
  • modeling
  • measurements
  • reliability

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Published Papers (3 papers)

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Research

13 pages, 1499 KiB  
Article
A Light-Load Efficiency Improvement Technique for an Inductive Power Transfer System through a Reconfigurable Circuit
by Xuebin Zhou, Jiabin Wang and Lin Yang
Energies 2024, 17(12), 3024; https://doi.org/10.3390/en17123024 - 19 Jun 2024
Cited by 2 | Viewed by 682
Abstract
Constant voltage (CV) charging and efficiency improvement are the most basic and main targets to be achieved in inductive power transfer (IPT) systems. However, efficiency may be jeopardized as battery charging progresses, especially under a light-load condition, which accounts for most of the [...] Read more.
Constant voltage (CV) charging and efficiency improvement are the most basic and main targets to be achieved in inductive power transfer (IPT) systems. However, efficiency may be jeopardized as battery charging progresses, especially under a light-load condition, which accounts for most of the charging time. Traditional maximum-efficiency tracking (MET) control provides an effective solution to the above issues. However, MET control not only brings the difficulties of complicated control and increased cost/volume, but also increases the additional power losses because of the introduction of additional converters or hard-switching in dual-shift phase control. To address the above difficulty, a light-load efficiency improvement (LLEI) technique is presented in this study. Under a heavy-load condition, both the inverter and rectifier operate in conventional full-bridge mode with satisfactory efficiency. Under a light-load condition, both the rectifier and inverter are reconfigured as a voltage-doubler rectifier and half-bridge inverter, respectively, to achieve two targets: one is to keep the charging voltage roughly unchanged, and the other is to force the equivalent load resistance (ELR) approach to the optimal point to improve system power transfer efficiency. A demonstrative experimental prototype with a charging voltage of 60 V is constructed and tested to validate the LLEI method proposed in this study. The experimental results show that the proposal can ensure stable CV charging and significantly improve the system efficiency under a light-load condition over the whole charging process. Full article
(This article belongs to the Special Issue Recent Advances in Power Electronics and Wireless Power Transfer Systems)
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18 pages, 861 KiB  
Article
Optimal Selection of Switch Model Parameters for ADC-Based Power Converters
by Saif Alsarayreh and Zoltán Sütő
Energies 2024, 17(1), 56; https://doi.org/10.3390/en17010056 - 21 Dec 2023
Cited by 2 | Viewed by 1039
Abstract
Real-time hardware-in-the-loop-(HIL) simulation integration is now a fundamental component of the power electronics control design cycle. This integration is required to test the efficacy of controller implementations. Even though hardware-in-the-loop-(HIL) tools use FPGA devices with computing power that is rapidly evolving, developers constantly [...] Read more.
Real-time hardware-in-the-loop-(HIL) simulation integration is now a fundamental component of the power electronics control design cycle. This integration is required to test the efficacy of controller implementations. Even though hardware-in-the-loop-(HIL) tools use FPGA devices with computing power that is rapidly evolving, developers constantly need to balance the ease of deploying models with acceptable accuracy. This study introduces a methodology for implementing a full-bridge inverter and buck converter utilising the associate-discrete-circuit-(ADC) model, which is optimised for real-time simulator applications. Additionally, this work introduces a new approach for choosing ADC parameter values by using the artificial-bee-colony-(ABC) algorithm, the firefly algorithm (FFA), and the genetic algorithm (GA). The implementation of the ADC-based model enables the development of a consistent architecture in simulation, regardless of the states of the switches. The simulation results demonstrate the efficacy of the proposed methodology in selecting optimal parameters for an ADC-switch-based full-bridge inverter and buck converter. These results indicate a reduction in overshoot and settling time observed in both the output voltage and current of the chosen topologies. Full article
(This article belongs to the Special Issue Recent Advances in Power Electronics and Wireless Power Transfer Systems)
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18 pages, 3433 KiB  
Article
Novel Control Approach for Resonant Class-DE Inverters Applied in Wireless Power Transfer Systems
by Juan Pablo Ochoa Avilés, Fernando Lessa Tofoli and Enio Roberto Ribeiro
Energies 2023, 16(21), 7238; https://doi.org/10.3390/en16217238 - 24 Oct 2023
Cited by 3 | Viewed by 1430
Abstract
Regulating the load voltage is of major importance for ensuring high transmission efficiency in wireless power transfer (WPT) systems. In this context, this work presents a novel control strategy applied in the dc-ac converter used in the primary side of a WPT system. [...] Read more.
Regulating the load voltage is of major importance for ensuring high transmission efficiency in wireless power transfer (WPT) systems. In this context, this work presents a novel control strategy applied in the dc-ac converter used in the primary side of a WPT system. The performance of a class-DE resonant inverter is investigated considering that such topology presents inherent soft-switching characteristics, thus implying reduced switching losses. The controller relies on an autoregressive with exogenous output (ARX) model based on an adaptive linear neuron (ADALINE) network, which allows for determining the turn-on time of the active switches accurately while providing the system with the ability to adapt to distinct alignment conditions. The performance of the proposed controller is compared with that of a linear controller, which does not prove to be an effective solution if misalignment occurs. Full article
(This article belongs to the Special Issue Recent Advances in Power Electronics and Wireless Power Transfer Systems)
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