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Electronics
Special Issues
Recent Issues on Motors and Motor Drives
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Recent Issues on Motors and Motor Drives

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Systems & Control Engineering".

Deadline for manuscript submissions: closed (30 July 2021) | Viewed by 15110

Special Issue Editors

Dr. Ton Duc Do

E-Mail Website
Guest Editor
Department of Robotics and Mechatronics, School of Engineering and Digital Sciences (SEDS), Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan Z05H0P9, Kazakhstan
Interests: advanced control (fuzzy control, sliding-mode control, nonlinear optimal control, adaptive control, neural-network control, etc.) system design; control of electric machine drives (PMSM/IM) based on microprocessors; control of distributed generation systems (DGS) using renewable energy source (wind turbine, solar cell, biomass, etc.) and/or uninterruptible power supplies (UPS); direct torque control, fault-tolerant control of electric machine drives; control of magnetic nanoparticles (nanorobots) in blood vessels and electromagnetic actuator design for targeted drug delivery system; control system design of treadmill for natural walking/running conditions; control of wind energy conversion systems
Special Issues, Collections and Topics in MDPI journals
Dr. Nguyen Gia Minh Thao

E-Mail Website1 Website2
Guest Editor
Graduate School of Engineering & International Exchange Promotion Center, Toyota Technological Institute, Nagoya, Japan
Interests: intelligent control (fuzzy logic, artificial neural networks); control systems; advanced control and applications; power electronics (Si, SiC, GaN) and converters; motor drive and loss evaluation; finite element analysis; applied electromagnetics; smart power grid; machine learning; photovoltaic and wind energy systems; energy optimization and management; two-wheeled self-balancing robot and scooter
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Motor and motor drives play important roles in all aspects of our life, from home appliances to industries, and from low power to medium, large, and very large power sizes. As their applications are broad, the number and types of electrical motors are still progressively growing. Some of these recently emerging applications are electric vehicles, robots, aircrafts, artificial satellites, etc. This Special Issue focuses on recent issues with motors and motor drives as well as their effective solutions through analysis, simulation, and/or experiments.
Authors are invited to submit full papers describing original research works in related areas including but not limited to:

  • Design, analysis, and testing of electric motors;
  • Control methods of motor drives, including all the aspects of control problems for motor drives (controller design, observer design, fault-tolerant control, sensorless control, etc.);
  • Applications of motors and motor drives;
  • Evaluation of motor losses and efficiency;
  • Motor drive systems using wide-bandgap semiconductor (SiC/GaN) converters;
  • Advanced power-electronic converter topologies for motor drive systems;
  • Advances in magnetic materials and components for motors and drives;
  • Modern fault diagnosis methods for motors and motor drives;

Techniques using artificial intelligence for motors, drives, and related systems.

Dr. Ton Duc Do
Dr. Nguyen Gia Minh Thao
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. Electronics 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 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

  • electric motors
  • motor design and analysis
  • motor drives
  • feedback control
  • sensorless control
  • converter topologies for motor systems
  • motor loss evaluation
  • magnetic materials for motors
  • fault diagnosis methods
  • artificial intelligence for motors

Published Papers (5 papers)

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Research

20 pages, 10266 KiB  
Article
Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter
by Nam Xuan Doan and Nho Van Nguyen
Electronics 2021, 10(18), 2244; https://doi.org/10.3390/electronics10182244 - 13 Sep 2021
Cited by 4 | Viewed by 2822
Abstract
In this paper, a model predictive control for an asymmetric T-type NPC 3-level inverter is presented. The mathematical model and characteristics of the reduced switching topology are described. An improvement for the predicted strategy with the pre-selected candidate vectors is proposed. The simulation [...] Read more.
In this paper, a model predictive control for an asymmetric T-type NPC 3-level inverter is presented. The mathematical model and characteristics of the reduced switching topology are described. An improvement for the predicted strategy with the pre-selected candidate vectors is proposed. The simulation and experimental results are provided and show good efficiency for the proposed control algorithm. The improved algorithm greatly reduces execution time by about 18% and delivers a better load current THD than the conventional model for predictive control. For comparison, similar tests are performed on both 2-level and conventional 3-level inverters. Although the current load quality of the asymmetrical inverter is not as good as the traditional 3-level inverter, it is much better than the 2-level inverter. In addition, it has the benefits of significantly reducing overall costs, simpler hardware system design, and faster predictive processing than the conventional 3-level inverters. Therefore, this asymmetric inverter has advantages for an application with the required output characteristics like the conventional 3-level inverter and with lower cost. Full article
(This article belongs to the Special Issue Recent Issues on Motors and Motor Drives)
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15 pages, 8354 KiB  
Article
Analysis and Verification of a Cogging Torque Reduction Method for Variable Flux Memory Permanent Magnet Machine
by Yingjie Cui, Fei Zhang, Lei Huang and Zhongxian Chen
Electronics 2021, 10(16), 1913; https://doi.org/10.3390/electronics10161913 - 09 Aug 2021
Cited by 4 | Viewed by 2125
Abstract
In this paper, an analytical method based on the series transform and skewed slot structure of rotor is adopted to reduce the cogging torque of the variable flux memory permanent magnet (VFMPM) machine. Firstly, the theory analysis of the cogging torque of the [...] Read more.
In this paper, an analytical method based on the series transform and skewed slot structure of rotor is adopted to reduce the cogging torque of the variable flux memory permanent magnet (VFMPM) machine. Firstly, the theory analysis of the cogging torque of the VFMPM machine was completed. Secondly, a simulation model of the VFMPM machine was established, aiming at calculating the cogging torque of the VFMPM machine and verifying the correctness of the above analytical method. Thirdly, a prototype of 14 rotor slots and 12 stator slots of the VFMPM machine was manufactured, and the experimental results of the cogging torque of the VFMPM machine further verified the effectiveness of the above mentioned theory analysis. Besides, the load force of the VFMPM machine including the cogging torque was also tested and analyzed in this paper. Full article
(This article belongs to the Special Issue Recent Issues on Motors and Motor Drives)
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16 pages, 1795 KiB  
Article
Digital Control of a Stepping Motor for Eliminating Rotation Speed Fluctuations Using Adaptive Gains
by Daishin Isobe, Noriyuki Hori, Shin Kawai, Keisuke Yagi and Triet Nguyen-Van
Electronics 2021, 10(11), 1335; https://doi.org/10.3390/electronics10111335 - 02 Jun 2021
Cited by 3 | Viewed by 3137
Abstract
Nowadays, stepping motors are usually used as precise actuators in various new scientific fields, such as syringe pumps, blood analyzers, and bio-3D printers. Controlling rotation of the stepping motor without speed fluctuation under no-load conditions plays an important role in improving the accuracy [...] Read more.
Nowadays, stepping motors are usually used as precise actuators in various new scientific fields, such as syringe pumps, blood analyzers, and bio-3D printers. Controlling rotation of the stepping motor without speed fluctuation under no-load conditions plays an important role in improving the accuracy of the machine’s drive. This paper proposes a digital control method for a five-phase hybrid stepping motor. The proposed controller includes an original control loop and a PI adaptive integration gain control loop. The original digital control loop is redesigned from the analog controller by using the direct PIM method. The PI adaptive control loop is added to the original control loop in a parallel way to remove a steady deviation of the motor and suppress a physical saturation factor inside the plant. Lyapunov stability theory is used to prove a stability condition of the PI regulator gains. Experimental results show that the proposed controller can suppress the chattering caused by the switching structure and gives performances as good as that of the commercial analog controller in a high rotation speed range without fluctuation. Full article
(This article belongs to the Special Issue Recent Issues on Motors and Motor Drives)
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10 pages, 3518 KiB  
Article
Design Considerations and Selection of Cost-Effective Switched Reluctance Drive for Radiator Cooling Fans
by Ickjin Son, Grace Firsta Lukman, Mazahir Hussain Shah, Kwang-Il Jeong and Jin-Woo Ahn
Electronics 2021, 10(8), 917; https://doi.org/10.3390/electronics10080917 - 12 Apr 2021
Cited by 6 | Viewed by 1795
Abstract
Switched reluctance motors (SRMs) are simple in structure, easy to manufacture, magnet-less, brushless, and highly robust compared to other AC motors which makes them a good option for applications that operate in harsh environment. However, the motor has non-linear magnetic characteristics, and it [...] Read more.
Switched reluctance motors (SRMs) are simple in structure, easy to manufacture, magnet-less, brushless, and highly robust compared to other AC motors which makes them a good option for applications that operate in harsh environment. However, the motor has non-linear magnetic characteristics, and it comes with various pole-phase combinations and circuit topologies that causes many difficulties in deciding on which type to choose. In this paper, the viability of SRM as a low-cost, rugged machine for vehicle radiator cooling fan is considered. First, necessary design considerations are presented, then three commonly use types of SRM are analyzed: A 3-phase 6/4, 3-phase 12/8, and a 4-phase 8/6 to find their static and dynamic characteristics so the most suitable type can be selected. Simulation results show that the 8/6 SRM produces the highest efficiency with less phase current which reduces the converter burden. However, with asymmetric half bridge converter, eight power switches are required for 8/6 SRM and thus put a burden on the overall drive cost. As a solution, the Miller converter with only six switches for four phase SRM. To verify the proposed idea, the 8/6 SRM was manufactured and tested. The results show that Miller converter can be used for the proposed SRM with slightly reduced efficiency at 80.4%. Full article
(This article belongs to the Special Issue Recent Issues on Motors and Motor Drives)
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20 pages, 1431 KiB  
Article
Nested High Order Sliding Mode Controller with Back-EMF Sliding Mode Observer for a Brushless Direct Current Motor
by Alma Y. Alanis, Gustavo Munoz-Gomez and Jorge Rivera
Electronics 2020, 9(6), 1041; https://doi.org/10.3390/electronics9061041 - 24 Jun 2020
Cited by 6 | Viewed by 3356
Abstract
This work presents a nested super-twisting second-order sliding mode speed controller for a brushless direct current motor with a high order sliding mode observer used for back electromotive force (back-EMF) estimation. Due to the trapezoidal nature of the back-EMF, a modified Park transformation [...] Read more.
This work presents a nested super-twisting second-order sliding mode speed controller for a brushless direct current motor with a high order sliding mode observer used for back electromotive force (back-EMF) estimation. Due to the trapezoidal nature of the back-EMF, a modified Park transformation is used in order to achieve proper field orientation. Such transformation requires information from the back-EMF that is not accessible. A second-order sliding mode observer is used to estimate the back electromotive forces needed in the modified transformation. Sliding mode control is known to be robust to matched uncertain disturbances and parametric variations but it is prone to unmatched perturbations that affect the performance of the system. A nested scheme is used to improve the response of the controller in presence of unmatched disturbances. Simulations performed under similar conditions to real-time experimentation show a good regulation of the rotor speed in terms of transient and steady-state responses along with a reduced torque ripple. Full article
(This article belongs to the Special Issue Recent Issues on Motors and Motor Drives)
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