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Advanced Topologies and Control Strategies in Electric Machines and Drives: 2nd Edition

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: 25 August 2025 | Viewed by 1194

Special Issue Editor

Dr. Quntao An

E-Mail Website
Guest Editor
School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
Interests: permanent magnet synchronous motors and drives; high-power permanent magnet synchronous motor drive system (high voltage/multiphase); low-cost permanent magnet synchronous motor drive system; wide-bandgap-device-based motor drive system; high-reliability motor system (fault diagnosis/ redundancy/fault tolerance); linear motor drives
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the current era, in order to meet constantly emerging application needs, new topologies and control strategies are being developed for electric machines and drives. In particular, with the development of new energy technologies, such as electric vehicles, multi-electric aircrafts, and wind power generation, new structures, controls, algorithms, and design methods are being presented in electric machines and drives. The new electric machine and drive techniques include the design of new electric machine topologies and excitation systems, new calculation methods for the electromagnetic fields, new modeling methods, the monitoring of healthy information, novel control algorithms, high-efficiency modulation strategies, the application of new power devices, etc.

This Special Issue aims to present and disseminate the results of research into new topologies and control technologies in electric machines and drives and contribute to the next generation of electric machine and drive technology.

Topics of interest for publication include, but are not limited to:

  1. Design, modelling and analysis for electric machines with novel topologies;
  2. Multiphase machines and drives;
  3. Novel linear motor and drives;
  4. Advanced control algorithms for electric machine drives
  5. High-speed, high-power, low-cost electric machines and drives;
  6. New topologies for electric machine drives;
  7. Fault tolerance and reliability in electric machines and drives;
  8. Sensorless control for electric machines;
  9. Thermal issues of electric machines;
  10. Vibroacoustic issues of electric machines.

Dr. Quntao An
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. 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

  • electric machines
  • multiphase machines
  • linear machines
  • control strategy
  • sensorless control
  • predictive control
  • fault-tolerant machines
  • EMC of motor systems

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Related Special Issue

Published Papers (4 papers)

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Research

21 pages, 9715 KiB  
Article
Fault-Tolerant Control of Non-Phase-Shifted Dual Three-Phase PMSM Joint Motor for Open Phase Fault with Minimized Copper Loss and Reduced Torque Ripple
by Xian Luo, Guangyu Pu, Wenhao Han, Huaqi Li and Hanlin Zhan
Energies 2025, 18(15), 4020; https://doi.org/10.3390/en18154020 - 28 Jul 2025
Viewed by 273
Abstract
Dual three-phase PMSMs (DTP-PMSMs) have attracted increasing attention in the field of robotics industry for their higher power density and enhanced fault-tolerant ability. The non-phase-shifted DTP-PMSM (NPSDTP-PMSM), which shows naturally prevailed performance on zero-sequence current (ZSC) suppression, necessitates the investigation on the control [...] Read more.
Dual three-phase PMSMs (DTP-PMSMs) have attracted increasing attention in the field of robotics industry for their higher power density and enhanced fault-tolerant ability. The non-phase-shifted DTP-PMSM (NPSDTP-PMSM), which shows naturally prevailed performance on zero-sequence current (ZSC) suppression, necessitates the investigation on the control method with improved fault-tolerant performance. In this paper, a novel fault-tolerant control (FTC) method for NPSDTP-PMSM is proposed, which concurrently simultaneously reduces copper loss and suppresses torque ripple under single and dual open phase fault. Firstly, the mathematical model of NPSDTP-PMSM is established, where the ZSC self-suppressing mechanism is revealed. Based on which, investigations on open phase fault and the copper loss characteristics for NPSDTP-PMSM are conducted. Subsequently, a novel fault-tolerant control method is proposed for NPSDTP-PMSM, where the torque ripple is reduced by mutual cancellation of harmonic torques from two winding sets and minimized copper loss is achieved based on the convex characteristic of copper loss. Experimental validation on an integrated robotic joint motor platform confirms the effectiveness of the proposed method. Full article
(This article belongs to the Special Issue Advanced Topologies and Control Strategies in Electric Machines and Drives: 2nd Edition)
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20 pages, 4459 KiB  
Article
Analytical Model and Feasibility Assessment of a Synchronous Reluctance Tubular Machine with an Additively Manufactured Mover
by Giada Sala, Nicola Giannotta, Mattia Vogni, Claudio Bianchini and Fabio Immovilli
Energies 2025, 18(15), 3918; https://doi.org/10.3390/en18153918 - 23 Jul 2025
Viewed by 168
Abstract
This paper presents the analytical model, feasibility assessment, and testing of a novel synchronous reluctance tubular machine, whose mover is manufactured using additive techniques. This approach enables the maximization of the machine’s saliency. The analytical model traditionally used for rotating machines was adapted [...] Read more.
This paper presents the analytical model, feasibility assessment, and testing of a novel synchronous reluctance tubular machine, whose mover is manufactured using additive techniques. This approach enables the maximization of the machine’s saliency. The analytical model traditionally used for rotating machines was adapted to match the geometric characteristics of the innovative tubular design proposed in this work. The analytical results were validated through 2D finite element analysis (FEA). Subsequently, several mock-ups were 3D-printed using iron metal powder to evaluate the manufacturing feasibility of the proposed machine. Finally, the machine was tested to verify the accuracy of the analytical model. Full article
(This article belongs to the Special Issue Advanced Topologies and Control Strategies in Electric Machines and Drives: 2nd Edition)
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24 pages, 9734 KiB  
Article
Investigating the Influence of PWM-Driven Cascaded H-Bridges Multilevel Inverter on Interior Permanent Magnet Synchronous Motor Power Losses
by Claudio Nevoloso, Gioacchino Scaglione, Giuseppe Schettino, Antonino Oscar Di Tommaso, Fabio Viola, Ciro Spataro and Rosario Miceli
Energies 2025, 18(15), 3911; https://doi.org/10.3390/en18153911 - 22 Jul 2025
Viewed by 281
Abstract
This paper presents an accurate analysis of the power losses of an interior permanent magnet synchronous motor fed by a cascaded H-bridge multilevel inverter. The main goal of this study is to investigate the impact of the cascaded h-bridge inverter, multicarrier PWM strategies, [...] Read more.
This paper presents an accurate analysis of the power losses of an interior permanent magnet synchronous motor fed by a cascaded H-bridge multilevel inverter. The main goal of this study is to investigate the impact of the cascaded h-bridge inverter, multicarrier PWM strategies, and inverter switching frequency on the synchronous motor power losses. With this aim in mind, a detailed frequency domain power analysis was carried out on motor power losses at different operating points in the frequency–torque plane. Motor power losses were further categorized into fundamental and harmonic power losses. This evaluation involved driving the power converter using six distinct multicarrier PWM strategies at four different switching frequencies. Additionally, a comparison was conducted with a conventional two-level PWM inverter to quantify the reduction in motor power losses. The experimental results show that the cascaded h-bridge inverter guarantees a notable increase in the motor efficiency, up to 7%, and losses in segregation at the fundamental frequency, if compared to the standard two-level PWM inverter, especially at low speed and with partial-load conditions. Such results mark out the cascaded H-bridge inverter as a valuable choice, also with regard to low-voltage drive applications. Full article
(This article belongs to the Special Issue Advanced Topologies and Control Strategies in Electric Machines and Drives: 2nd Edition)
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11 pages, 657 KiB  
Article
Axial Flux Permanent Magnet Synchronous Motor Cogging Torque Calculation Method Based on Harmonic Screening
by Xiao-Kun Zhao, Xin-Peng Zou, Qi-Chao Guo and Liang-Kuan Zhu
Energies 2025, 18(14), 3779; https://doi.org/10.3390/en18143779 - 17 Jul 2025
Viewed by 289
Abstract
This paper proposes a harmonic screening-based method for calculating the cogging torque of the axial flux permanent magnet synchronous motor. The magnetic field energy in the air gap is derived from the air gap flux and the magnetomotive force of rotor. The cogging [...] Read more.
This paper proposes a harmonic screening-based method for calculating the cogging torque of the axial flux permanent magnet synchronous motor. The magnetic field energy in the air gap is derived from the air gap flux and the magnetomotive force of rotor. The cogging torque is then obtained using the energy-based method. Compared with finite element analysis, the proposed approach is significantly faster while maintaining high accuracy. It is particularly effective for scenarios involving stator staggering, which can facilitate quick calculation of cogging torques of many different staggering angles, offering rapid insights into motor performance during the initial design. The method achieves a similarity accuracy with FEA results and reduces computation time, demonstrating both its efficiency and reliability. Full article
(This article belongs to the Special Issue Advanced Topologies and Control Strategies in Electric Machines and Drives: 2nd Edition)
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