Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.1
2.6
Journals
Electronics
Special Issues
Advanced Design in Electrical Machines
share announcement

Advanced Design in Electrical Machines

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

Deadline for manuscript submissions: closed (15 June 2025) | Viewed by 3638

Special Issue Editors

Dr. Chaelim Jeong

E-Mail Website
Guest Editor
Department of Electrical Engineering, Tongmyong University, Busan 48520, Republic of Korea
Interests: fault detection of motor (turn fault and demagnetization of permanent magnet); motor design for reducing rare-earth permanent magnet and analysis
Dr. Jun-Kyu Park

E-Mail Website
Guest Editor
Eco-Friendly Power Apparatus Research Institute, Korea Electrotechnology Research Institute, Changwon 51543, Republic of Korea
Interests: electric machine design; fault detection

Special Issue Information

Dear Colleagues,

Electrical machines are one of the most important parts of various industries, including electric vehicles, power stations, and so on. There are a lot of issues faced when using electrical machines; thus, much research has been conducted in order to achieve a high performance, advance their duration and reliability, and reduce their dependence on rare-earth elements, as well as their cost. Additionally, as much interest is focused on technology development related to renewable energy and electric vehicles, research on DC transmission and distribution system design and diagnosis is actively underway. Unlike AC systems, DC systems do not have a current zero point, so research is needed to diagnose various conditions resulting from this.

The goal of this Special Issue is to bring researchers together to share their research on design, fault detection, and diagnosis in relation to electrical machines. Moreover, this Special Issue aims to provide a platform for researchers from both academic and industrial fields to report their recent research results and overlook emerging research directions in the advanced design of electrical machines.

We welcome the submission of both original research articles and reviews focused on, but not limited to, the following fields:

  • Analytical modeling;
  • Induction and reluctance motors;
  • Permanent magnet motors;
  • Non-rare-earth permanent magnet motors;
  • Multiphase motors;
  • Numerical analysis methods, design, and optimization of electrical machines;
  • Magnetic materials;
  • Winding technologies;
  • Advanced manufacturing;
  • Fault detection and diagnosis of electrical machines;
  • Other areas in electrical devices.

Dr. Chaelim Jeong
Dr. Jun-Kyu Park
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.

Keywords

  • induction and reluctance motors
  • magnet motors
  • multiphase motors
  • numerical analysis methods, design, and optimization of electrical machines
  • fault detection and diagnosis of electrical machines

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (4 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

14 pages, 4226 KiB  
Article
Analysis of the Effect of the Skewed Rotor on Induction Motor Vibration
by Yunwen Xiang, Zhiqiang Liao, Defeng Kong and Baozhu Jia
Electronics 2025, 14(12), 2374; https://doi.org/10.3390/electronics14122374 - 10 Jun 2025
Viewed by 374
Abstract
Induction motors have a simple structure, have low manufacturing costs and are widely used. However, various vibration effects with mechanical or electromagnetic origins are also very common. To analyze the impact of rotor skewing on electromagnetic vibrations in induction motors, this paper investigated [...] Read more.
Induction motors have a simple structure, have low manufacturing costs and are widely used. However, various vibration effects with mechanical or electromagnetic origins are also very common. To analyze the impact of rotor skewing on electromagnetic vibrations in induction motors, this paper investigated the skew factor of skewed rotor slots and proposes an electromagnetic force wave analysis method. The method aimed to optimize the skew angle parameters for vibration amplitude reduction, with its effectiveness verified through simulations and experiments. Taking a 7.5 kW four-pole induction motor with 36 stator slots and 28 rotor slots as the research object, the suppression law of different skew parameters on force waves generated by stator harmonics was obtained. Results show that when the rotor is skewed by an angle equivalent to three stator teeth pitch, electromagnetic forces of different orders are attenuated by approximately 5% on average. Physical rotors with skew angles of 0°, 10°, 12.8°, 14°, and 20° were manufactured for experimental validation, while considering the influence of rotor skewing on starting torque and maximum torque. The study concludes that the amplitude of tooth harmonics varies with the skew coefficient, consistent with the skew factor analysis. By analyzing motor vibration with the skew coefficient, the amplitude relationship of electromagnetic vibration under different optimization parameters can be determined, thereby selecting reasonable skew parameters for rotor optimization. Full article
(This article belongs to the Special Issue Advanced Design in Electrical Machines)
►▼ Show Figures

Figure 1

11 pages, 4419 KiB  
Article
Investigation of Torque Ripple in Servo Motors with Different Magnet Geometries
by Hacı Dedecan, Engin Ayçiçek and Mustafa Gürkan Aydeniz
Electronics 2025, 14(5), 1049; https://doi.org/10.3390/electronics14051049 - 6 Mar 2025
Cited by 1 | Viewed by 789
Abstract
Servo motors are among the most efficient and precise performers within the category of permanent magnet synchronous motors. These motors stand out for their high power density, quiet operation, low maintenance, and wide operating speed range advantages. One of the disadvantages of these [...] Read more.
Servo motors are among the most efficient and precise performers within the category of permanent magnet synchronous motors. These motors stand out for their high power density, quiet operation, low maintenance, and wide operating speed range advantages. One of the disadvantages of these motors, which is also the subject of this study, is their high torque ripple. Torque ripple is critical in applications requiring precision, as it can affect operational performance and contribute to vibration and noise issues. Torque ripple can be reduced through design methods such as different winding layouts, slot openings, stator/rotor skewing, or pole offset. In this study, torque ripple of servo motors was investigated through various magnet geometry designs and analyses using the finite element method. Design and analysis studies were conducted for a reference servo motor, and alternative designs were obtained by modifying the rotor structure of the reference motor. In the studies conducted, it has been observed that the torque ripple, initially at 2.17 Nm, can be improved to as low as 1.23 Nm. This indicates that the torque ripple, which was initially at 3.75%, can be reduced to around 2.08%. However, performance losses may occur depending on the extent of improvement. Full article
(This article belongs to the Special Issue Advanced Design in Electrical Machines)
►▼ Show Figures

Figure 1

24 pages, 13687 KiB  
Article
Nanofluids as Coolants to Improve the Thermal Management System of a High-Power Aircraft Electric Motor
by Giuseppe Di Lorenzo, Diego Giuseppe Romano, Antonio Carozza and Antonio Pagano
Electronics 2025, 14(5), 911; https://doi.org/10.3390/electronics14050911 - 25 Feb 2025
Cited by 1 | Viewed by 856
Abstract
Electrification has become increasingly common in aerospace due to climate change concerns. After successful applications in general aviation aircraft, electrification is now addressing subregional (up to 19 passengers) and regional aircraft (around 80 passengers). Megawatt-class electric motors are needed both to drive propellers [...] Read more.
Electrification has become increasingly common in aerospace due to climate change concerns. After successful applications in general aviation aircraft, electrification is now addressing subregional (up to 19 passengers) and regional aircraft (around 80 passengers). Megawatt-class electric motors are needed both to drive propellers and to act as high-power generators in hybrid–electric propulsion systems. Power levels for this class of aircraft require a proper design of heat management systems capable of dissipating a much higher quantity of heat than that dissipated by traditional cooling systems. The technical solution here explored is based on the addition into a diathermic base liquid of nanoparticles, which can increase (by up to 30%) the thermal conductivity of the refrigerant, also providing large surface area enhancing the heat transfer capacity of base liquids. The Italian Aerospace Research Centre (CIRA), as part of the European research initiative Optimised Electric Network Architectures and Systems for More-Electric Aircraft (ORCHESTRA), developed a thermal management system (TMS) based on impinging jets technology for a 1 MW electric motor. In this work, a numerical verification of the possibility for nanofluids to improve the heat exchange efficiency of a submerged oil impinging jets TMS designed to directly cool the inner components of a 1 MW motor is conducted. Investigations aimed to analyse two nanoparticle types (alumina and graphite) added to diathermic oil with concentrations between 1% and 5% by volume. The application of nanofluids significantly increases final thermal conductivity with respect to conventional coolants, a 60% improvement in heat transfer at a fixed mass flow rate is achieved. Electric motor maximum temperatures are approximately 10% lower than those achieved with solely diathermic oil. This result is significant as a safety margin is needed in all cases where a sudden increase in power occurs. Full article
(This article belongs to the Special Issue Advanced Design in Electrical Machines)
►▼ Show Figures

Graphical abstract

14 pages, 5886 KiB  
Article
Performance Analysis of Dual Three-Phase Synchronous Reluctance Motor According to Winding Configuration
by Chaelim Jeong
Electronics 2024, 13(14), 2821; https://doi.org/10.3390/electronics13142821 - 18 Jul 2024
Viewed by 1067
Abstract
This manuscript examines the output characteristics of a dual three-phase synchronous reluctance motor (DT-SynRM) according to two winding arrangements under normal and half-control modes. In the case of the DT-SynRM, it can operate by using all of the dual three-phase systems (the normal [...] Read more.
This manuscript examines the output characteristics of a dual three-phase synchronous reluctance motor (DT-SynRM) according to two winding arrangements under normal and half-control modes. In the case of the DT-SynRM, it can operate by using all of the dual three-phase systems (the normal control) or one of the dual three-phase systems (the half control). In this paper, conventional winding function theory (WFT) is applied, because the output characteristic can be predicted by the inductance behavior. According to the WFT, the inductance value can be affected by the winding function, the turn function, and the inverse air gap function. As a result, the rotor barrier shape as well as the winding configuration are the most important factors that have an effect on the performance of the DT-SynRM. Therefore, the effect of the rotor barrier design on the performance is analyzed when the winding configuration and control mode are different. Finally, the validity of the torque characteristic is substantiated through experimental verification. Full article
(This article belongs to the Special Issue Advanced Design in Electrical Machines)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-4
Back to TopTop