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Electric Machines and Intelligent Control Systems for Energy-Efficient Electromechanical Applications

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

Deadline for manuscript submissions: 10 October 2026 | Viewed by 1514

Special Issue Editors


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Guest Editor
Department of Electrical Devices and Automation, Kielce University of Technology, Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland
Interests: modeling of ignition systems; electric machines and drives; renewable and low-emission energy sources; energy efficiency in electromechanical systems; lighting technology; smart and adaptive lighting applications

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Guest Editor
Department of Electrical Devices and Automation, Kielce University of Technology, Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland
Interests: PM machines and drives; modeling of electromagnetic field distribution in electromechanical converters; control systems of electric machines; electric drives in robotics; interaction of electric machines with power systems

Special Issue Information

Dear Colleagues,

Electrical machines constitute essential components of modern drive, industrial and power systems. Their continuous development plays a crucial role in enhancing energy efficiency, operational reliability and the sustainable utilization of resources.

Recent advancements in the design, modeling and control of electrical machines—including those supported by artificial intelligence, machine learning and advanced power electronics—have significantly expanded the potential applications of high-performance electromechanical systems.

This Special Issue focuses on the latest progress in energy-efficient electrical machines and intelligent control systems that enhance their performance and reliability under diverse operating conditions. The aim of this issue is to present innovative research results and engineering solutions that contribute to the development of a new generation of motors and generators characterized by higher efficiency, adaptability and environmental sustainability.

The topics of interest include, but are not limited to:

  • design, modeling and optimization of electrical machines (motors, generators and drive systems);
  • advanced control and diagnostic methods, including those supported by artificial intelligence and machine learning;
  • power electronics and converter systems for high-efficiency drives;
  • condition monitoring, fault detection and predictive maintenance;
  • digital twins, multi-domain modeling and system-level simulation of electromechanical systems;
  • integration of electrical machines in renewable energy systems, electric vehicles, robotics and industrial automation;
  • interaction of electrical machines with the power grid, particularly in the context of the ongoing energy transition;
  • strategies for improving energy efficiency and promoting sustainable development in electromechanical systems.

We warmly invite you to submit your manuscripts.

Prof. Dr. Sebastian Różowicz
Dr. Paweł Strączyński
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 250 words) can be sent to the Editorial Office for assessment.

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
  • energy efficiency
  • intelligent control
  • power electronics
  • artificial intelligence
  • predictive maintenance
  • optimization
  • FEM
  • renewable energy systems
  • electric drives
  • electromechanical systems
  • industrial automation

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Published Papers (2 papers)

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Research

14 pages, 2754 KB  
Article
Field–Circuit Model of a Novel PMDC Motor with Rectangular NdFeB Permanent Magnets in Ansys Maxwell
by Paweł Strączyński, Sebastian Różowicz, Karol Suchenia, Łukasz Gruszka and Krzysztof Baran
Energies 2026, 19(3), 661; https://doi.org/10.3390/en19030661 - 27 Jan 2026
Viewed by 510
Abstract
Accurate analysis of commutation phenomena in permanent magnet DC (PMDC) motors requires simultaneous consideration of electromagnetic field distribution and armature circuit dynamics. Classical circuit-based models are unable to properly capture transient effects occurring in short-circuited coils during commutation, while purely field-based models neglect [...] Read more.
Accurate analysis of commutation phenomena in permanent magnet DC (PMDC) motors requires simultaneous consideration of electromagnetic field distribution and armature circuit dynamics. Classical circuit-based models are unable to properly capture transient effects occurring in short-circuited coils during commutation, while purely field-based models neglect the influence of the supply circuit. In this paper, a coupled field–circuit model of a PMDC motor with an innovative magnetic circuit based on rectangular NdFeB permanent magnets is presented. The model combines a two-dimensional finite element electromagnetic analysis with a segmented armature circuit and dynamic commutator switching, allowing the electromotive force to be computed individually for each coil based on the actual magnetic field distribution. The novelty of the proposed approach lies in the integration of a non-standard rectangular permanent magnet topology with a coil-resolved field–circuit commutation model, validated on a physical motor prototype. Simulation results are compared with experimental measurements obtained from a laboratory prototype at rotational speeds of 850 and 1000 r/min. The predicted electromagnetic torque shows good agreement with measurements, with deviations below 5%, while the armature current is estimated with an error of up to approximately 20%, primarily due to model simplifications. The developed model provides direct access to transient commutation waveforms and constitutes a practical tool for the analysis and design optimization of PMDC motors operating under dynamic conditions, particularly in cost-sensitive and reliability-oriented applications. Full article
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12 pages, 1016 KB  
Article
Application of Fractional-Order Differential Operators for Enhanced Electromagnetic Field Modeling in Electrical Devices and Electromechanical Systems
by Andrzej Zawadzki
Energies 2026, 19(1), 247; https://doi.org/10.3390/en19010247 - 1 Jan 2026
Viewed by 532
Abstract
Accurate mapping of electromagnetic field distributions is crucial in the analysis and design of electromechanical devices such as electric machines. Fractional calculus is a tool currently under development that allows classical models to be generalized by introducing fractional-order operators. This paper presents a [...] Read more.
Accurate mapping of electromagnetic field distributions is crucial in the analysis and design of electromechanical devices such as electric machines. Fractional calculus is a tool currently under development that allows classical models to be generalized by introducing fractional-order operators. This paper presents a theoretical framework for writing fractional-order differential operators in cylindrical and spherical coordinate systems by formulating fractional Lamé coefficients. The proposed approach allows for the consistent use of fractional derivatives in geometries commonly used in electromagnetic field modeling. Analytical examples illustrate the behavior of the derived operators and their consistency with the classical case for integer-order derivatives. The obtained results provide a theoretical basis for further research on field models using non-integer-order calculus and may in the future support the development of alternative methods for describing selected electromagnetic phenomena. Full article
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