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Power Electronics Technology and Application

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: 15 August 2025 | Viewed by 1970

Special Issue Editors


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Guest Editor
Department of Power Electronics, Gdynia Maritime University, Morska 81-87, 81-225 Gdynia
Interests: wireless power transfer systems; inductor; transformers; high frequency air core transformers; power electronics systems; energy storage systems
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Guest Editor
Department of Marine Electronics, Gdynia Maritime University, Morska 83, 81-225 Gdynia, Poland
Interests: power semiconductor devices; SiC; GaN; magnetic materials; power electronics; power converters; artificial intelligence methods

Special Issue Information

Dear Colleagues,

The pursuit of miniaturization of power electronic devices requires increasing the frequency of their operation. The increase in this frequency is limited by the dynamic properties of the elements contained in such devices, i.e., semiconductor and magnetic elements, which narrows the scope of their application and affects the energy efficiency of power electronic systems. For example, an increase in the operating frequency of electronic devices containing magnetic elements causes decrease of energy efficiency of the considered system. The reason for the reduced efficiency is an increase in power losses in magnetic elements. Additionally, an increase in the operating frequency causes an increase in the temperature of the considered elements as a result of thermal phenomena occurring in them, such as self-heating or mutual thermal coupling between the components of the mentioned element (core, winding). Therefore, the aim of this issue is to identify new trends and research in the field of modern electronic components used in power systems and to present the influence of selected properties of electronic components of the considered systems. Additionally, the area of power systems in which specific electronic components are used will be indicated.

Prof. Dr. Kalina Detka
Dr. Damian Bisewski
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.

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Keywords

  • power semiconductor devices
  • SiC
  • GaN
  • magnetic materials
  • power electronics
  • power converters 

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Published Papers (3 papers)

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Research

30 pages, 3950 KiB  
Article
Estimation of Peak Junction Hotspot Temperature in Three-Level TNPC-IGBT Modules for Traction Inverters Through Chip-Level Modeling and Experimental Validation
by Ahmed H. Okilly, Peter Nkwocha Harmony, Cheolgyu Kim, Do-Wan Kim and Jeihoon Baek
Energies 2025, 18(14), 3829; https://doi.org/10.3390/en18143829 - 18 Jul 2025
Viewed by 301
Abstract
Monitoring the peak junction hotspot temperature in IGBT modules is critical for ensuring the reliability of high-power industrial multilevel inverters, particularly when operating under extreme thermal conditions, such as in traction applications. This study presents a comprehensive chip-level analytical loss and thermal model [...] Read more.
Monitoring the peak junction hotspot temperature in IGBT modules is critical for ensuring the reliability of high-power industrial multilevel inverters, particularly when operating under extreme thermal conditions, such as in traction applications. This study presents a comprehensive chip-level analytical loss and thermal model for estimation of the peak junction hotspot temperature in a three-level T-type neutral-point-clamped (TNPC) IGBT module. The developed model includes a detailed analytical assessment of conduction and switching losses, along with transient thermal network modeling, based on the actual electrical and thermal characteristics of the IGBT module. Additionally, a hybrid thermal–electrical stress experimental setup, designed to replicate real operating conditions, was implemented for a balanced three-phase inverter circuit utilizing a Semikron three-level IGBT module, with testing currents reaching 100 A and a critical case temperature of 125 °C. The analytically estimated module losses and peak junction hotspot temperatures were validated through direct experimental measurements. Furthermore, thermal simulations were conducted with Semikron’s SemiSel benchmark tool to cross-validate the accuracy of the thermo-electrical model. The outcomes show a relative estimation error of less than 1% when compared to experimental data and approximately 1.15% for the analytical model. These findings confirm the model’s accuracy and enhance the reliability evaluation of TNPC-IGBT modules in extreme thermal environments. Full article
(This article belongs to the Special Issue Power Electronics Technology and Application)
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17 pages, 5158 KiB  
Article
Centrifugal Pumping Force in Oil Injection-Based TMS to Cool High-Power Aircraft Electric Motors
by Giuseppe Di Lorenzo, Diego Giuseppe Romano, Antonio Carozza and Antonio Pagano
Energies 2025, 18(13), 3390; https://doi.org/10.3390/en18133390 - 27 Jun 2025
Viewed by 304
Abstract
One of the challenges of our age is climate change and the ways in which it affects the Earth’s global ecosystem. To face the problems linked to such an issue, the international community has defined actions aimed at the reduction in greenhouse gas [...] Read more.
One of the challenges of our age is climate change and the ways in which it affects the Earth’s global ecosystem. To face the problems linked to such an issue, the international community has defined actions aimed at the reduction in greenhouse gas emissions in several sectors, including the aviation industry, which has been requested to mitigate its environmental impact. Conventional aircraft propulsion systems depend on fossil fuels, significantly contributing to global carbon emissions. For this reason, innovative propulsion technologies are needed to reduce aviation’s impact on the environment. Electric propulsion has emerged as a promising solution among the several innovative technologies introduced to face climate change challenges. It offers, in fact, a pathway to more sustainable air travel by eliminating direct greenhouse gas emissions, enhancing energy efficiency. Unfortunately, integrating electric motors into aircraft is currently a big challenge, primarily due to thermal management-related issues. Efficient heat dissipation is crucial to maintain optimal performance, reliability, and safety of the electric motor, but aeronautic applications are highly demanding in terms of power, so ad hoc Thermal Management Systems (TMSs) must be developed. The present paper explores the design and optimization of a TMS tailored for a megawatt electric motor in aviation, suitable for regional aircraft (~80 pax). The proposed system relies on coolant oil injected through a hollow shaft and radial tubes to directly reach hot spots and ensure effective heat distribution inside the permanent magnet cavity. The goal of this paper is to demonstrate how advanced TMS strategies can enhance operational efficiency and extend the lifespan of electric motors for aeronautic applications. The effectiveness of the radial tube configuration is assessed by means of advanced Computational Fluid Dynamics (CFD) analysis with the aim of verifying that the proposed design is able to maintain system thermal stability and prevent its overheating. Full article
(This article belongs to the Special Issue Power Electronics Technology and Application)
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14 pages, 6782 KiB  
Article
Suppression of Metal Particles by Coating for a ±550 kV DC GIS
by Hanhua Luo, Duohu Gong, Shan Li, Zhongqiang Zhan, Niyaer Di, Dilyar Dolkun, Xianhao Fan and Xiangdong Liu
Energies 2024, 17(22), 5627; https://doi.org/10.3390/en17225627 - 11 Nov 2024
Cited by 1 | Viewed by 907
Abstract
Coating the inner surface of grounded enclosures has been used to inhibit metal particle motion inside AC GIS for many years. However, for DC GIS, only fundamental research has been performed, while very few attempts have been made on real DC GIS. This [...] Read more.
Coating the inner surface of grounded enclosures has been used to inhibit metal particle motion inside AC GIS for many years. However, for DC GIS, only fundamental research has been performed, while very few attempts have been made on real DC GIS. This paper reviews the basic research into the inhibition of metal particles by coating at DC. On this basis, based on a ±550 kV DC GIS busbar, an inhibition test of metal particle motion using coating was performed. Four types of metal particles were used as samples to verify the inhibitory effect of the grounded enclosure coating. The results showed that the coating has a very good inhibitory effect on block and powder metal particles on real GIS, and there are rarely any metal particles moving again under the rated DC voltage. However, for wire and flake metal particles, the effectiveness of the coating depends on the way the particle contacts the ground electrode when they are still, and ~30% of wire and flake metal particles can be inhibited. The conclusion of this paper is of guiding significance for the research and development of stable and reliable DC gas-insulated equipment. Full article
(This article belongs to the Special Issue Power Electronics Technology and Application)
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