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Multi-Factor Coupling Analysis and Optimization Method for High-Quality Electrical Machine...
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Multi-Factor Coupling Analysis and Optimization Method for High-Quality Electrical Machine Systems

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

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 9817

Special Issue Editors

Prof. Dr. Wenxiang Zhao

E-Mail Website
Guest Editor
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: electrical machines and drives; electric machine design; modeling; fault analysis; intelligent control
Dr. Liang Xu

E-Mail Website
Guest Editor
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: electrical machines and drives
Dr. Bo Wang

E-Mail Website
Guest Editor
School of Electrical Engineering, Southeast University, Nanjing 210096, China
Interests: high-performance permanent magnet motor drive system; high-speed starting/generating system
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the constant upgrading development of new energy resources, aerospace, automobiles, and robots, high-quality electrical machine systems have become indispensable and attracted increasing attention. In order to realize the specific functions in these fields, torque density, power density, efficiency, temperature rise, torque fluctuation, dynamic response, and other qualities of an electrical machine system require proper optimization to meet the customized demands.

Electrical machine systems are complex multi-factor coupled systems. For instance, loss and temperature rise as well as the electrical circuit and magnetic field are coupled, and the coupling effects between different factors have a significant influence on machine performance. Therefore, the multi-factor coupling effect must be considered in the design and control of electrical machine systems so as to realize high-quality requirements. Through sustained efforts from academia and industry, some multi-factor coupling analysis techniques have been commercialized and used in product development and industrial applications. However, there are still some unsolved crucial issues such as accurate modeling of multi-factor coupling effect, highly efficient coupling calculation method, and multi-physics and multi-objective optimization, which limit development and research in high-quality electrical machine systems.

This Special Issue aims to promote research and invites original works in the area of multi-factor coupling analysis and optimization method for high-quality electrical machine systems. Topics of interest for publication include but are not limited to:

  • Multi-physics analysis and design of electrical machines;
  • Integrated field circuit coupling model for electrical machines;
  • High-precision loss and torque calculation for electrical machines;
  • Advanced modeling methods for electrical machine systems;
  • Multi-objective optimization of electrical machine systems;
  • Novel configurations and control methods of electrical machines;
  • Harmonics analysis with magnetic field modulation;
  • Innovative applications of electrical machines. 

Prof. Dr. Wenxiang Zhao
Dr. Liang Xu
Dr. Bo Wang
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 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

  • electrical machines
  • multi-physics
  • field-circuit coupling
  • loss and torque analysis
  • multi-objective optimization
  • harmonic analysis
  • magnetic field modulation
  • novel machine topology
  • advanced control scheme
  • innovative applications

Published Papers (5 papers)

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Editorial

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3 pages, 163 KiB  
Editorial
Multi-Factor Coupling Analysis and Optimization Method for High-Quality Electrical Machine Systems
by Wenxiang Zhao, Liang Xu and Bo Wang
Energies 2023, 16(7), 3097; https://doi.org/10.3390/en16073097 - 29 Mar 2023
Viewed by 810
Abstract
As the global energy crisis and environmental pollution become increasingly prominent, the development of new energy resources has become a global consensus [...] Full article
(This article belongs to the Special Issue Multi-Factor Coupling Analysis and Optimization Method for High-Quality Electrical Machine Systems)

Research

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18 pages, 6826 KiB  
Article
Distributed Permanent Magnet Direct-Drive Belt Conveyor System and Its Control Strategy
by Qixun Zhou, Hao Gong, Guanghui Du, Yingxing Zhang and Hucheng He
Energies 2022, 15(22), 8699; https://doi.org/10.3390/en15228699 - 19 Nov 2022
Cited by 6 | Viewed by 1886
Abstract
The long-distance traditional belt conveyor driven by a single high-power motor has the problems of excessive tension increments and sharp fluctuations in speed and tension. This paper designs a distributed permanent magnet direct drive belt conveyor system. The dynamic model of the conveyor [...] Read more.
The long-distance traditional belt conveyor driven by a single high-power motor has the problems of excessive tension increments and sharp fluctuations in speed and tension. This paper designs a distributed permanent magnet direct drive belt conveyor system. The dynamic model of the conveyor belt unit and the permanent magnet motor is analyzed. The multi-motor ring coupling control strategy and the double sliding film direct torque control strategy of the belt conveyor system are formulated. The mechanical-electrical coupling dynamic model of the belt conveyor system is built. Using MATLAB/Simulink modeling and simulation, the vector control strategy and electromechanical coupling dynamic behavior of the traditional belt conveyor system and the distributed permanent magnet direct drive belt conveyor system under light load start-up and local variable load operation conditions are studied. The results show that: the distributed permanent magnet direct drive belt conveyor system significantly reduces the peak of conveyor belt tension increment; the time spent under the starting light-load operation condition is shorter, and the fluctuation amplitude of speed and tension is smaller; it is possible to reduce the speed and tension fluctuation range of the conveying system and improve the robustness of the conveying system under local variable load conditions. Experiments have verified that increasing the number of drive motors in a conventional belt conveyor can suppress the disturbance caused by local load changes, and the distributed permanent magnet direct-drive belt conveyor has better dynamic regulation performance. Full article
(This article belongs to the Special Issue Multi-Factor Coupling Analysis and Optimization Method for High-Quality Electrical Machine Systems)
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14 pages, 4164 KiB  
Article
Magnet Slotting Design to Reduce High Order Electromagnetic Force and Vibration of Permanent Magnet Motor
by Zifei Wang, Wei Tian and Wenxiang Zhao
Energies 2022, 15(22), 8684; https://doi.org/10.3390/en15228684 - 18 Nov 2022
Cited by 3 | Viewed by 1200
Abstract
In this paper, a new method is proposed to suppress the vibration caused by the modulation effect of high-order electromagnetic forces in permanent magnet (PM) motors. Firstly, the modulation effect of the radial force was investigated, which indicated that the higher-order electromagnetic force [...] Read more.
In this paper, a new method is proposed to suppress the vibration caused by the modulation effect of high-order electromagnetic forces in permanent magnet (PM) motors. Firstly, the modulation effect of the radial force was investigated, which indicated that the higher-order electromagnetic force could cause modulated vibrations through the modulation effect. Then, auxiliary slots on the magnet surface and their effect on vibration reduction were investigated. The optimal shape of the auxiliary slot was found to minimize the noise of motor vibration. Finally, the method was verified experimentally. Full article
(This article belongs to the Special Issue Multi-Factor Coupling Analysis and Optimization Method for High-Quality Electrical Machine Systems)
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15 pages, 6012 KiB  
Article
Optimal Design of Asymmetric Rotor Pole for Interior Permanent Magnet Synchronous Motor Using Topology Optimization
by Huihuan Wu, Shuangxia Niu and Weinong Fu
Energies 2022, 15(21), 8254; https://doi.org/10.3390/en15218254 - 04 Nov 2022
Cited by 2 | Viewed by 1415
Abstract
As asymmetric interior permanent magnet synchronous motor (AIPMSM) has excellent performance but complicated topological structure, a novel high-resolution encoding and edge smoothing method is proposed for topology optimization of the asymmetric rotor of interior permanent magnet synchronous motor (IPMSM) in this study. This [...] Read more.
As asymmetric interior permanent magnet synchronous motor (AIPMSM) has excellent performance but complicated topological structure, a novel high-resolution encoding and edge smoothing method is proposed for topology optimization of the asymmetric rotor of interior permanent magnet synchronous motor (IPMSM) in this study. This method aims to solve complex electromagnetic design problems with time-dependent performance through a multi-objective genetic algorithm (MOGA) integrated with a high-resolution encoding and edge smoothing method. The complex structure is represented by a high-resolution image-like matrix and then vectorized by the edge smoothing method. Therefore, the commonly used discrete binary encoded variables related to the finite element (FE) model are replaced with a vectorized topological structure and other control variables. In this sense, high-resolution matrix and edge smoothing methods are used for the first time to represent the rotor topology of AIPMSMs. Compared with the traditional topology optimization method, the proposed method has the advantage of expressing more complex and vectorized topological structures; meanwhile, the obtained performance is accurate and trustworthy using conventional FE simulation. Numerical results show that a stable convergence is achieved with the avoidance of checkerboards and material overlapping. It is shown that the proposed method can find solutions with better performances, in comparison with the reference model. Full article
(This article belongs to the Special Issue Multi-Factor Coupling Analysis and Optimization Method for High-Quality Electrical Machine Systems)
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Review

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23 pages, 3943 KiB  
Review
Overview of Integrated Electric Motor Drives: Opportunities and Challenges
by Bowen Zhang, Zaixin Song, Senyi Liu, Rundong Huang and Chunhua Liu
Energies 2022, 15(21), 8299; https://doi.org/10.3390/en15218299 - 07 Nov 2022
Cited by 13 | Viewed by 3589
Abstract
Integrated Motor Drives (IMDs) have recently received extensive attention. In electric vehicles (EVs), electric propulsion aircraft, and ship propulsion systems, integrated motors have the great potential to replace traditional motors with the distinct merits of compact size, high power density, high efficiency, and [...] Read more.
Integrated Motor Drives (IMDs) have recently received extensive attention. In electric vehicles (EVs), electric propulsion aircraft, and ship propulsion systems, integrated motors have the great potential to replace traditional motors with the distinct merits of compact size, high power density, high efficiency, and high-cost effectiveness. This paper investigates and reviews integrated motor drives’ development and critical technologies. It not only reveals the research progress of the motor structure, converter, volume optimization, heat dissipation design, and weakening electromagnetic interference of integrated motor drives but also explores in detail the applications of wide-bandgap semiconductors and the integration of LCL filters. In addition, this paper also puts forward the concept of integrated motor drive integration level and establishes a corresponding quantitative method to evaluate IMDs integration level. In the future, integrated wireless motor drives will have a broad scope of research and application. IMDs systems will play an important role in applications requiring high power density, providing solutions to motor system size and heat dissipation problems. This overview will help clarify the opportunities, challenges, and future development of IMDs. Full article
(This article belongs to the Special Issue Multi-Factor Coupling Analysis and Optimization Method for High-Quality Electrical Machine Systems)
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