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Machines
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Optimal Design and Drive of Permanent Magnet Synchronous Motors
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Optimal Design and Drive of Permanent Magnet Synchronous Motors

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

Deadline for manuscript submissions: closed (1 July 2024) | Viewed by 4433

Special Issue Editor

Dr. Adrian Munteanu

E-Mail Website
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

Special Issue Information

Dear Colleagues,

Permanent magnet synchronous motors proved their superiority to other electrical machine types in terms of efficiency, power density, reliability, and flexibility, and gained significant interest of researchers and industry professionals over the last few decades. Various domains such as automotives, air space, power generation, military, medical, automation, and robotics currently use various types of electrical machines in different configurations.

However, the limited nature of resources needed to obtain high-performance permanent magnets and relatively high fabrication costs represents inconveniences that can be overcome by developments in achieving even better performance through an optimal design of both motor geometry and control strategy. Thermal and mechanical aspects represent serious challenges in permanent magnet electrical machines and should not be neglected. As an alternative to these shortcomings, interest in cheaper permanent magnets, such as ferrite used in electrical machines with convenient topologies, is currently increasing.

This Special Issue calls for papers that explore innovative applications of different permanent magnet electrical machines in terms of design and modeling approaches, drive topologies, motor control stratgies, fault tolerance, and redundancy.

I look forward to receiving your contributions.

Dr. Adrian Munteanu
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.

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Published Papers (3 papers)

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Research

33 pages, 16532 KiB  
Article
Design, Analysis and Application of Control Techniques for Driving a Permanent Magnet Synchronous Motor in an Elevator System
by Vasileios I. Vlachou, Dimitrios E. Efstathiou and Theoklitos S. Karakatsanis
Machines 2024, 12(8), 560; https://doi.org/10.3390/machines12080560 - 15 Aug 2024
Cited by 1 | Viewed by 1169
Abstract
An electrical motors, together with its appropriate drive system, is one of the most important elements of electromobility. In recent years, there has been a particular interest by academic researchers and engineers in permanent-magnet motors (PMSMs) in various applications, such as electric vehicles, [...] Read more.
An electrical motors, together with its appropriate drive system, is one of the most important elements of electromobility. In recent years, there has been a particular interest by academic researchers and engineers in permanent-magnet motors (PMSMs) in various applications, such as electric vehicles, Unmanned Aerial Vehicles (UAVs), elevator systems, etc., as the main source of drive transmission. Nowadays, the elevator industry, with the evolution of magnetic materials, has turned to gearless PMSMs over geared induction motors (IMs). One of the most important elements that is given special emphasis in these applications is proper motor design in consideration of the weight and speed of the chamber to be served during operation. This paper presents a design of a high-efficiency PMSM, in which finite elements analysis (FEA) and the study of the lift operating cycle provided useful conclusions on the magnetic field of the machine in different operating states. In addition, a simulated model was compared with experimental results of test operations. Furthermore, the drive system also required the use of appropriate electrical power and controls to drive the PMSM. Especially in elevator applications, the control of the motor speed by the variable voltage variable frequency technique (VVVF) is the most common technology used to avoid endangering the safety of the passengers. Thus, suitable speed and current controllers were used for this purpose. In our research, we focused on studying different control techniques using a suitable inverter to compare the system operation in each case studied. Full article
(This article belongs to the Special Issue Optimal Design and Drive of Permanent Magnet Synchronous Motors)
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10 pages, 2920 KiB  
Communication
Optimization Design of Cogging Torque for Electric Power Steering Motors
by Guoguang Zhang and Peng Hou
Machines 2024, 12(8), 517; https://doi.org/10.3390/machines12080517 - 30 Jul 2024
Viewed by 741
Abstract
Excessive cogging torque can cause torque fluctuations, noise, and vibration in electric power steering (EPS) motors, which is a key factor in the high-precision and high-performance optimization design of EPS motors for electric vehicles. This article takes a 12-slot 10-pole electric power steering [...] Read more.
Excessive cogging torque can cause torque fluctuations, noise, and vibration in electric power steering (EPS) motors, which is a key factor in the high-precision and high-performance optimization design of EPS motors for electric vehicles. This article takes a 12-slot 10-pole electric power steering motor for a certain car as an example. By establishing the corresponding electromagnetic field model and theoretical analysis of the motor, the influence of the pole arc coefficient and eccentricity parameters of the permanent magnet on the cogging torque of the electric power steering motor is explored. A comprehensive optimization scheme for reducing the cogging torque of the motor structure is proposed. The effectiveness of the designed scheme was verified through finite-element simulation and experimental testing of motor electromagnetism. Compared with the original design, the optimized structure of the EPS motor resulted in an 86.62% reduction in cogging torque during experimental testing. Full article
(This article belongs to the Special Issue Optimal Design and Drive of Permanent Magnet Synchronous Motors)
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17 pages, 10054 KiB  
Article
Analytical Solution for Electromagnetic Performance Analysis of Permanent Magnet Synchronous Motor with a Parallel Magnetized Cylindrical Permanent Magnet
by Hao Lin, Haipeng Geng, Ling Li, Leiming Song and Xiaojun Hu
Machines 2024, 12(3), 152; https://doi.org/10.3390/machines12030152 - 22 Feb 2024
Cited by 1 | Viewed by 1795
Abstract
High-speed direct-drive permanent magnet synchronous motors (PMSMs), supported by elastic foil gas bearings, have broad applications, such as in microcompressors. However, some problems remain to be solved for the electrical performance analysis of PMSMs. For example, there is presently no related analytical model [...] Read more.
High-speed direct-drive permanent magnet synchronous motors (PMSMs), supported by elastic foil gas bearings, have broad applications, such as in microcompressors. However, some problems remain to be solved for the electrical performance analysis of PMSMs. For example, there is presently no related analytical model that can be used in rotor dynamics expression for this type of PMSM. This study aimed to establish theoretical models for electromagnetic force density and torque. The process involved both theoretical and experimental research. The analytic models of air gap magnetic density, electromagnetic force density, and electromagnetic performance were established for a PMSM with a parallel magnetized cylindrical permanent magnet. The analytic calculation was conducted, and the results of the analytic model were obtained. The analytical model of the electromagnetic torque and force can be applied in theoretical research on rotor dynamics. The model provides a theoretical basis and method for studying the influence of the electromagnetic load on rotor dynamics. A finite element simulation analysis of the electrical performance of the PMSM was carried out. An electrical performance experiment was conducted. The deviation between the experimental result and the theoretical value was less than 4%. This result indicated that the analytic models could be used in a dynamics analysis of compressors that are directly driven by a PMSM for application in engineering and industrial contexts. Full article
(This article belongs to the Special Issue Optimal Design and Drive of Permanent Magnet Synchronous Motors)
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