Advances in Analysis, Control and Design of Permanent Magnet Machines

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Electrical Machines and Drives".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 641

Special Issue Editor


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Guest Editor
Department of Electric Machines, Drives and Automation, Faculty of Electrical Engineering and Computing, University of Zagreb, 10000 Zagreb, Croatia
Interests: magnetic analysis; magnetic devices; magnetic fields; magnets; conformal mapping; finite element analysis; optimization; magnetic circuits; turbogenerators; transformers; electromechanical devices; electric machines; AC machines; brushless machines; DC machines; generators; permanent magnet machines; rotating machines; motors; AC motors; brushless motors; DC motors; induction motors; permanent magnet motors
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Special Issue Information

Dear Colleagues,

Permanent magnet machines are at the forefront of modern electromechanical technology, essential across applications from renewable energy systems and automotive traction to industrial automation, aerospace, and high-performance consumer products. Known for their exceptional efficiency, high power density, and precise control capabilities, these machines are indispensable in advancing sustainable technologies and high-performance systems. As their roles expand, continuous progress in their analysis, control, and design becomes increasingly crucial.

Recent advances in control strategies—such as field-oriented control, direct torque control, and sensorless control—have unlocked new levels of precision and dynamic responsiveness, essential for achieving optimal performance across diverse and demanding applications. These innovations, paired with sophisticated modelling techniques like finite element analysis (FEA) and equivalent circuit models, deepen our understanding of the complex interactions within permanent magnet machines, frequency converters, and control methods. Furthermore, the adoption of multiphysics approaches that integrate electromagnetic, thermal, and mechanical considerations, alongside advanced optimisation techniques has become essential for maximising performance, material efficiency, and reliability. Such developments are driving the emergence of novel permanent magnet machine topologies and advanced control methods that push the boundaries of science and technology.

This Special Issue, "Advances in Analysis, Control and Design of Permanent Magnet Machines", invites original research papers and review articles focused on the latest innovations in these areas. We welcome contributions that explore new techniques in the modelling, control, and optimisation of permanent magnet machines, particularly those advancing current technology and offering insights into future developments.

Research areas of interest include (but are not limited to) the following:

  • Advanced analysis methods for permanent magnet machines;
  • Innovative control strategies for enhanced performance of permanent magnet machines;
  • Design and topology optimisation specific to permanent magnet machines;
  • Multiphysics analysis with integrated thermal, mechanical, and electromagnetic considerations;
  • High-speed applications and configurations tailored to permanent magnet systems;
  • Noise, vibration, and harshness (NVH) reduction techniques;
  • Sustainable design approaches minimising reliance on rare-earth materials.

Dr. Zlatko Hanić
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. Machines is an international peer-reviewed open access monthly 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

  • permanent magnet machines
  • control
  • design
  • optimization
  • multiphysics
  • high-speed applications
  • NVH
  • sustainable design

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Published Papers (1 paper)

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Research

20 pages, 5577 KB  
Article
Electromagnetic Vibration Analysis and Mitigation of FSCW PM Machines with Auxiliary Teeth
by Huang Zhang, Wei Wang, Xinmin Li and Zhiqiang Wang
Machines 2025, 13(9), 867; https://doi.org/10.3390/machines13090867 - 18 Sep 2025
Viewed by 193
Abstract
Auxiliary teeth are usually used in fractional-slot concentrated winding (FSCW) machines for fault tolerance. However, the influence of auxiliary teeth on torque and electromagnetic vibration performance differs with different slot–pole configurations. Thus, this paper investigates electromagnetic vibration and mitigation methods in FSCW permanent [...] Read more.
Auxiliary teeth are usually used in fractional-slot concentrated winding (FSCW) machines for fault tolerance. However, the influence of auxiliary teeth on torque and electromagnetic vibration performance differs with different slot–pole configurations. Thus, this paper investigates electromagnetic vibration and mitigation methods in FSCW permanent magnet (PM) machines with auxiliary teeth. The relationship between yoke forces and tooth parameters of two dual three-phase (DTP) FSCW-PM machines with 12-slot/14-pole configuration and 12-slot/10-pole configuration is studied and compared. Results reveal that (1) the 2p-order airgap electromagnetic force reduces second-order yoke force in the 12-slot/14-pole machine but increases it in the 12-slot/10-pole machine. (2) Through optimized tooth width, slot harmonics can be mitigated, but the fundamental winding magnetic field in the 12-slot/10-pole machine is also weakened, whereas the 12-slot/14-pole machine achieves fundamental field preservation or enhancement. Based on these findings, auxiliary tooth optimization and rotor pole profile shaping are proposed for vibration reduction in 12-slot/14-pole machine. Electromagnetic–mechanical coupled simulations conducted in ANSYS Maxwell/Workbench 2023 demonstrate that the optimized design reduces the cogging torque peak from 11.4 mN·m to 2.9 mN·m (74.6% reduction), suppresses housing surface vibration acceleration by 21%, and maintains the average output torque without reduction. Full article
(This article belongs to the Special Issue Advances in Analysis, Control and Design of Permanent Magnet Machines)
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