New Advances in Synchronous Reluctance Motors

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 520

Special Issue Editor


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Guest Editor
School of Electronic Engineering, Kumoh National Institute of Technology, Gumi 39177, Gyungbuk, Republic of Korea
Interests: optimal design of electric motors

Special Issue Information

Dear Colleagues,

Synchronous Reluctance Motors (SynRMs) have gained significant attention in recent years due to their high efficiency, cost-effectiveness, and reduced dependency on rare-earth materials. Advances in rotor design, material optimization, and control algorithms have further enhanced their performance, making them ideal for industrial, automotive, and energy applications. Furthermore, SynRMs exhibit inherent robustness and require minimal maintenance, contributing to their overall reliability and long service life. To ensure optimal performance and longevity of SynRMs, regular maintenance practices are essential.

This paper explores the latest developments in SynRM technology, focusing on innovative design approaches and emerging trends that promise to reshape the future of electric motor applications.

Dr. Kyu-yun Hwang
Guest Editor

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Keywords

  • loss analysis in synchronous reluctance motors
  • advanced control techniques for SynRMs
  • high-efficiency design strategies
  • fault-tolerant synchronous reluctance motors
  • material optimization for SynRMs
  • thermal management in SynRM systems
  • applications of synchronous reluctance motors
  • cost-effective manufacturing of SynRMs
  • innovative rotor design for enhanced performance
  • energy-efficient SynRM drive systems

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Published Papers (1 paper)

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Research

19 pages, 2177 KiB  
Article
Current- and Vibration-Based Detection of Misalignment Faults in Synchronous Reluctance Motors
by Angela Navarro-Navarro, Vicente Biot-Monterde, Jose E. Ruiz-Sarrio and Jose A. Antonino-Daviu
Machines 2025, 13(4), 319; https://doi.org/10.3390/machines13040319 - 14 Apr 2025
Viewed by 325
Abstract
Misalignment faults in drive systems occur when the motor and load are not properly aligned, leading to deviations in the centerlines of the coupled shafts. These faults can cause significant damage to bearings, shafts, and couplings, making early detection essential. Traditional diagnostic techniques [...] Read more.
Misalignment faults in drive systems occur when the motor and load are not properly aligned, leading to deviations in the centerlines of the coupled shafts. These faults can cause significant damage to bearings, shafts, and couplings, making early detection essential. Traditional diagnostic techniques rely on vibration monitoring, which provides insights into both mechanical and electromagnetic fault signatures. However, its main drawback is the need for external sensors, which may not be feasible in certain applications. Alternatively, motor current signature analysis (MCSA) has proven effective in detecting faults without requiring additional sensors. This study investigates misalignment faults in synchronous reluctance motors (SynRMs) by analyzing both vibration and current signals under different load conditions and operating speeds. Fast Fourier transform (FFT) is applied to extract characteristic frequency components linked to misalignment. Experimental results reveal that the amplitudes of rotational frequency harmonics (1xfr, 2xfr, and 3xfr) increase in the presence of misalignment, with 1xfr exhibiting the most stable progression. Additionally, acceleration-based vibration analysis proves to be a more reliable diagnostic tool compared to velocity measurements. These findings highlight the potential of combining current and vibration analysis to enhance misalignment detection in SynRMs, improving predictive maintenance strategies in industrial applications. Full article
(This article belongs to the Special Issue New Advances in Synchronous Reluctance Motors)
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