Electrical Machines: Design, Modeling and Control

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

Deadline for manuscript submissions: closed (31 August 2025) | Viewed by 685

Special Issue Editor


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Guest Editor
Faculty of Electrical Engineering, Gheorghe Asachi Technical University of Iasi, Bulevardul Profesor Dimitrie Mangeron 67, 700050 Iasi, Romania
Interests: permanent magnet synchronous motor; electrical machines; FEM analysis; sensors; electromagnetism; permanent magnet motors
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Special Issue Information

Dear Colleagues,

Electrical machines are the muscles of any electric drive system used in a varaity of applications that are critical to our global infrastructure and technological progress. This Special Issue highlights the crucial role of innovative design, sophisticated modeling, and intelligent control in optimizing the performance and reliability of these vital devices. We request submissions that explore the latest developments across the spectrum of electrical machine technology, with a particular emphasis on practical applications and real-world impacts. Specific areas of interest include, but are not limited to, design optimization for specific applications, high-fidelity modeling for performance prediction, and advanced control strategies for enhanced energy efficiency and grid integration.

This Special Issue will serve as a valuable resource for both researchers and practitioners seeking to advance the state of the art in electrical machine engineering. It presents the latest advances in design methodologies, modeling tools, and control strategies, showcasing innovative approaches that are driving progress in electrical machine technology. This Special Issue will also contribute to the development of high-performance, efficient, and reliable electrical machine systems.

Dr. Adrian Munteanu
Guest Editor

Manuscript Submission Information

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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

  • electrical machines
  • motor control
  • electric drive
  • performance analysis
  • power electronics

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Published Papers (1 paper)

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Research

18 pages, 7200 KB  
Article
Dynamic Characteristic Analysis and Experimental Verification of Rotor Systems in Large Synchronous Motors
by Yushuai Liu, Jiahao Hou, Rui Li and Qingshun Bai
Machines 2025, 13(8), 747; https://doi.org/10.3390/machines13080747 - 21 Aug 2025
Viewed by 353
Abstract
Large synchronous motors are typically used to drive various load equipment, such as reciprocating compressors. Due to the continuous oscillation of the load, the pulsating torque acting on the main shaft of the synchronous motor will continuously vary with the load changes. This [...] Read more.
Large synchronous motors are typically used to drive various load equipment, such as reciprocating compressors. Due to the continuous oscillation of the load, the pulsating torque acting on the main shaft of the synchronous motor will continuously vary with the load changes. This leads to forced oscillations during the dynamic stable operation of the unit, subsequently causing severe problems such as overheating, noise, and failures. Moreover, the rotor length of large synchronous motors is generally greater than the rotor diameter, giving the rotor certain flexible characteristics. During a motor’s operation, it is necessary to cross the first-order critical speed, making resonance highly likely to occur. Therefore, the analysis of dynamic characteristics of large synchronous motors is particularly important. This study investigates the dynamic characteristics of a 7800 kW-18P large synchronous motor rotor system through comprehensive theoretical and experimental analyses. The research encompasses three key aspects: (1) modal analysis comparing fan-equipped and fan-free configurations, (2) harmonic response evaluation, and (3) critical speed determination under concentrated mass conditions. Experimental validation was performed via impact hammer testing, with measured natural frequencies showing a strong correlation with simulated results for the magnetic pole core assembly. The findings not only confirm the operational speed validity but also establish a reliable foundation for the subsequent structural optimization of high-power synchronous machines. Full article
(This article belongs to the Special Issue Electrical Machines: Design, Modeling and Control)
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