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Journal articles on the topic 'Fractional motor'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Xi, Zhiqiang, Lianbo Niu, Xianghai Yan, and Liyou Xu. "Research on Performance of Interior Permanent Magnet Synchronous Motor with Fractional Slot Concentrated Winding for Electric Vehicles Applications." World Electric Vehicle Journal 15, no. 10 (2024): 470. http://dx.doi.org/10.3390/wevj15100470.

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The fractional-slot, concentrated-winding, interior permanent magnet synchronous motor (FSCW IPMSM) has advantages, such as reducing motor copper consumption, improving flux-weakening capability, and motor fault tolerance, and has certain development potential in application fields such as electric vehicles. However, fractional-slot concentrated-winding motors often contain rich harmonic components due to their winding characteristics, leading to increased motor losses and back electromotive force harmonics, thereby affecting the efficiency and constant power speed regulation range of the moto

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2

Alitasb, Girma Kassa. "Assessment of Fractional and Integer Order Models of Induction Motor Using MATLAB/Simulink." Modelling and Simulation in Engineering 2024 (April 12, 2024): 1–11. http://dx.doi.org/10.1155/2024/2739649.

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The definition of derivatives and integrals of any real or complex order can be found in fractional calculus, which is an extension of ordinary calculus. Many real-world processes might be more accurately modeled by these fractional calculi. Flexibility and nonlocality are the two fundamental benefits of fractional derivatives. These derivatives, which are of fractional order, are more flexible than classical derivatives in how they might approach real data. Due to its applications in numerous domains, the fractional order model has grown in significance and popularity. The simulation results

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3

Liu, Guang Qi. "Investigation on Slot/Pole Number Combinations for PMSM with Concentrated Fractional Slot Winding." Advanced Engineering Forum 2-3 (December 2011): 512–18. http://dx.doi.org/10.4028/www.scientific.net/aef.2-3.512.

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Five features of slot number-phase table of cell motor are deeply discussed in this paper. Then it is derived that four constraints of cell motor with fractional slot winding and two additional constraints of cell motor with concentrated fractional slot winding. Finally, the equivalent calculation of spread factor of fractional slot motor and integral slot motor is proposed by use of the dummy motor. Because Slot number-phase table is brought in, the method proposed by this paper is convenient to carry out automatic analysis and calculation by computer.

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Busher, V.V., and V.V. Horoshko. "Fractional Integral-Differentiating Control in Speed Loop of Switched Reluctance Motor." Problemele Energeticii Regionale 1-2 (41) (June 5, 2019): 46–54. https://doi.org/10.5281/zenodo.3239166.

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This paper deals with the feedback speed control of a switched reluctance motor using the fractional-order controller. Due to the polar-pole construction and pulsed power windings, at which saturation of the magnetic system occurs, standard PI or PID controllers based on motor description with differential equations of integer order have led to significant errors and inaccuracies in the dynamic and static modes. The purpose of the work is optimization of dynamic and static modes using fractional integral proportional controllers. The goal was achieved by solving the problem of identifying a sw

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5

B, Parthiban. "Enhanced Control of BLDC Motor Using FOPID Comparative Analysis and Optimization." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 04 (2025): 1–9. https://doi.org/10.55041/ijsrem46246.

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ABSTRACT This paper explores the design and implementation of a Fractional Order Proportional-Integral Derivative (FOPID) controller for Brushless DC (BLDC) motors, specifically aimed at improving electric vehicle (EV) performance. BLDC motors are known for their efficiency, compact size, and precise control. However, their nonlinear dynamics and sensitivity to load variations present significant challenges for traditional Proportional Integral-Derivative (PID) controllers, which often struggle under dynamic conditions. The proposed FOPID controller incorporates fractional-order parameters, of

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6

Zhao, HM, DY Li, W. Deng, and XH Yang. "Research on vibration suppression method of alternating current motor based on fractional order control strategy." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 231, no. 4 (2016): 786–99. http://dx.doi.org/10.1177/0954408916637380.

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At present, the changing structure, material and increasing device are used to suppress the vibration of motor in general. These methods increase system complexity in the different degree. So a novel vibration suppression method based on fractional order Proportional-Integral-Derivative (PID) controller is proposed in this article. First, the digital realization process of fractional order PID controller is illustrated in detail. Then the integer order PID controller and fractional order PID controller are, respectively, used to adjust the input current of inverter to control the 1.5 kW altern

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7

Lakusta, Denys, and Sergey Maliuk. "Development of a functional system for diagnosing the presence of rotor damage in induction traction motors." Collection of scientific works of the State University of Infrastructure and Technologies series "Transport Systems and Technologies", no. 44 (December 2, 2024): 41–53. https://doi.org/10.32703/2617-9059-2024-44-3.

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The aim of this work is to develop a system for functional diagnostics of rotor bar breakage in induction traction motors of railway rolling stock. In order to achieve this aim, the following tasks have been solved: developed an algorithm for diagnosing the condition of rotor bars based on the statistics of fractional moments; developed a block diagram of the unit for diagnosing the condition of rotor bars of the induction motor based on the statistics of fractional moments; developed a block diagram of the system for functional diagnosis of rotor bars condition as part of the traction motor w

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8

Ferrah, Azzeddine, Mounir Bouzguenda, and Jehad M. Al-Khalaf Bani Younis. "High Accuracy Measurement of Total Losses in Fractional Horsepower Induction Motors." International Journal of Advanced Research in Engineering 1, no. 2 (2015): 13. http://dx.doi.org/10.24178/ijare.2015.1.2.13.

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Large and small single-phase and three-phase induction motors are commonly used in industrial applications. The present work represents an attempt towards the design of a high accuracy system for the measurement of fractional horsepower (FHP) induction motor losses and efficiency. The calorimeter designed and built is capable of measuring heat losses of up to 1 kW with an overall accuracy better than 3%. During all tests, ambient temperature, humidity, motor speed and motor frame temperature were recorded using precise digital instruments. The inlet, outlet temperatures and resulting losses we

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9

Wu, Hao, Xue Ma, and Chenglin Wen. "Multilevel Fine Fault Diagnosis Method for Motors Based on Feature Extraction of Fractional Fourier Transform." Sensors 22, no. 4 (2022): 1310. http://dx.doi.org/10.3390/s22041310.

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Motors are the main driving power for equipment operation, and they are also a major factor to promote the development of the motor and the load it drives and its motor control system toward a low-carbon future, reduce carbon emissions, and improve the industrial economy and social economic efficiency. Due to high-speed, long-period, and heavy-load operation, various faults occur; since the existing integer-order Fourier transform methods have not enough able to detect fractional-order faults and lack robustness, it is difficult to realize the fine diagnosis of motor faults, which reduces the

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10

Jiang, Haoxiang, Heng Liu, Hairong He, et al. "Specific White Matter Lesions Related to Motor Dysfunction in Spastic Cerebral Palsy: A Meta-analysis of Diffusion Tensor Imaging Studies." Journal of Child Neurology 35, no. 2 (2019): 146–54. http://dx.doi.org/10.1177/0883073819879844.

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Background: Assessing motor impairment in spastic cerebral palsy is a key factor in the treatment and rehabilitation of patients. We intend to investigate the correlation between diffusion tensor imaging properties of sensorimotor pathways and motor function in spastic cerebral palsy using meta-analysis, and to determine specific white matter lesions that are closely related to motor dysfunction in spastic cerebral palsy. Methods: We conducted a literature search of PubMed, Embase, Scopus, and Web of Science databases to identify trials published from January 1999 to January 2019 that had eval

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11

K Sebasthirani. "Implementation of AI Tuned PID Controller for Speed and Direction Control of BLDC Motor." Journal of Electrical Systems 20, no. 7s (2024): 2221–28. http://dx.doi.org/10.52783/jes.3957.

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This paper explores BLDC motor control using MATLAB Simulink, focusing on AI tuned PID and fractional PID controllers for closed-loop speed regulation and direction . It involves designing a feedback system comprising sensor feedback, controller, and BLDC motor model. Through iterative tuning, optimal controller parameters are determined for enhanced performance. Simulations were carried out to evaluate response characteristics, stability, and robustness across varying conditions. Experimental validation though hardware-in-the-loop experiments corroborates simulation findings. Performance metr

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12

Jedryczka, Cezary, Wojciech Szelag, and Zbigniew Jerry Piech. "Multiphase permanent magnet synchronous motors with fractional slot windings." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 35, no. 6 (2016): 1937–48. http://dx.doi.org/10.1108/compel-03-2016-0120.

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Purpose The purpose of this paper is to investigate advantages of multiphase permanent magnet synchronous motors (PMSM) with fractional slot concentrated windings (FSCW). The investigation is based on comparative analysis and assessment of FSCW PMSM wound as 3, 6, 9 and 12 phase machines suited for low speed applications. Design/methodology/approach The investigations are focussed on distortions of back electromotive (emf) and magnetomotive force (mmf) with the torque ripples and motors’ performance taken into account. The finite element models with the aid of customized computer code have bee

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13

Golzar, Milad, Surya Teja Kandukuri, Van Khang Huynh, Martin Marie Hubert Choux, and Alf Magne Midtbø Versland. "Novel Fault Indicator for Local Demagnetization in Fractional-Slot Permanent Magnet Synchronous Motor using Winding Function Theory." PHM Society European Conference 5, no. 1 (2020): 6. http://dx.doi.org/10.36001/phme.2020.v5i1.1240.

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Local demagnetization is an irreparable failure mode in permanent magnet synchronous motors (PMSMs), resulting in reduced motor efficiency and high cogging torque. These effects are particularly disadvantageous to fractional-slot wound PMSMs used in industrial applications, such as robotics and automations, that require high power density and precise operation. In this article, a diagnostic indicator is developed for detecting local demagnetization fault in fractional-slot wound PMSMs based on winding function theory, utilizing back-electromotive force (back-EMF) as a medium for fault detectio

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14

Wolnik, Tomasz, and Tomasz Jarek. "Solid Rotor Core vs. Lamination Rotor Core in Fractional-Slot PMSM Motor with High Power Density." Energies 15, no. 15 (2022): 5729. http://dx.doi.org/10.3390/en15155729.

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Fractional-slot PMSM motors allow for obtaining high values of power density factors, but at the same time, they are characterized by high values of rotor losses—in the rotor core and permanent magnets. The main causes of rotor losses in this type of motor are subharmonics and a high content of higher harmonics in the distribution of the magnetomotive force MMF. The use of a solid rotor core simplifies the construction and technology of the rotor but eddy current losses in the core account for a significant percentage of the total rotor losses. It is well known that a laminated core reduces ed

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15

Bai Wen-Si-Mi, Peng Hao, Tu Zhe, and Ma Hong. "Fractional Brownian motor and its directed transport." Acta Physica Sinica 61, no. 21 (2012): 210501. http://dx.doi.org/10.7498/aps.61.210501.

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16

Ghoudelbourk, Sihem, Ahmad Taher Azar, Djalel Dib, and Abelkrim Rechach. "Fractional order control of switched reluctance motor." International Journal of Advanced Intelligence Paradigms 21, no. 3/4 (2022): 247. http://dx.doi.org/10.1504/ijaip.2022.122191.

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17

Rechach, Abelkrim, Djalel Dib, Ahmad Taher Azar, and Sihem Ghoudelbourk. "Fractional order Control of Switched Reluctance Motor." International Journal of Advanced Intelligence Paradigms 1, no. 1 (2018): 1. http://dx.doi.org/10.1504/ijaip.2018.10024488.

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18

Petkovska, Lidija, Paul Lefley, and Goga Vladimir Cvetkovski. "Design techniques for cogging torque reduction in a fractional-slot PMBLDC motor." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 39, no. 5 (2020): 1041–55. http://dx.doi.org/10.1108/compel-01-2020-0015.

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Purpose This paper presents the design techniques applied to a novel fractional-slot 6/4 pole permanent magnet brushless direct current (PMBLDC) motor, for cogging torque reduction. The notable feature of this motor is the simplicity of the design and low production cost. The purpose of this paper is to reduce the peak cogging torque of the motor. The focus is put on the stator topology tuning, and a new design for the stator poles is proposed. By determining the optimum stator pole arc length and the best pole shoe thickness, the cogging torque is significantly reduced. This new optimised mot

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19

Zhong, Yongbin, Jian Gao, and Lanyu Zhang. "Adaptive Fractional-Order Anti-Saturation Synchronous Control for Dual-Motor Systems." Applied Sciences 13, no. 4 (2023): 2307. http://dx.doi.org/10.3390/app13042307.

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The synchronization error of a dual-motor system will seriously affect the motion profile accuracy. To solve this problem, an adaptive fractional-order anti-saturation synchronous control method based on fractional-order frequency-domain control theory is proposed in this paper. On the one hand, the proposed method performs a compensation on the closed-loop feedback control loop to unify the frequency-domain characteristics for a dual-motor system. With the frequency-domain characteristics’ unification module, the dual-motor system will have the same response performance regarding the input si

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20

Valerii, Tytiuk, Chornyi Oleksii, Baranovskaya Mila та ін. "SYNTHESIS OF A FRACTIONAL-ORDER PIΛDΜ-CONTROLLER FOR A CLOSED SYSTEM OF SWITCHED RELUCTANCE MOTOR CONTROL". Eastern-European Journal of Enterprise Technologies 2, № 2 (98) (2019): 35–42. https://doi.org/10.15587/1729-4061.2019.160946.

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The relevance of creating high-quality control systems for electric drives with a switched reluctance motor (SRM) was substantiated. Using methods of mathematical modeling, transient characteristics of the process of turn-on of SRMs with various moments of inertia were obtained. Based on analysis of the obtained transient characteristics, features of the SRM turn-on process determined by dynamic change of parameters of the SRM during its turn-on were shown. Low accuracy of SRM identification using a fractionally rational function of rat34 class was shown. Regression coefficient of the resultin

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21

Alnaib, I. I., A. N. Alsammak, and K. K. Mohammed. "Brushless DC motor drive with optimal fractional-order sliding-mode control based on a genetic algorithm." Electrical Engineering & Electromechanics, no. 2 (March 2, 2025): 19–23. https://doi.org/10.20998/2074-272x.2025.2.03.

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Introduction. Brushless DC (BLDC) motor is a type of permanent magnet synchronous motor that operates without brushes employed in many applications owing to its efficiency and control in electric cars. One of the main reasons BLDC motors are better than brushed DC motors is that they employ an electronic commutation circuit instead of a mechanical one. The fractional order sliding mode controller (FOSMC) was used, which is characterized by high durability and is not affected by the disturbances that the motor is exposed to during operation, as well as overcoming the chattering phenomenon prese

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22

Hwang, Chang Chou, Hsing Cheng Chang, Ming Te Ho, and Cheng Tsung Liu. "Design Comparison of Fractional-Slot IPM Machine Types for an Electric Power Steering Application." Materials Science Forum 670 (December 2010): 243–51. http://dx.doi.org/10.4028/www.scientific.net/msf.670.243.

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This paper deals with the design comparison of interior permanent magnet (IPM) motors with fractional-slot winding configurations for an electric power steering (EPS) application. By making comparisons of these configurations based on cogging torque, torque ripple, average torque, and efficiency, an IPM rotor configuration has been chosen for use as a prototype motor. The Taguchi parameter method coupled with the finite element analysis (FEA) is employed to achieve the desired performance requirements within a reasonable geometry. To assess the rated current and thermal behavior of the motor,

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Khubalkar, Swapnil, Anjali Junghare, Mohan Aware, and Shantanu Das. "Unique fractional calculus engineering laboratory for learning and research." International Journal of Electrical Engineering & Education 57, no. 1 (2018): 3–23. http://dx.doi.org/10.1177/0020720918799509.

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In this paper, a novel prototype laboratory is presented for engineering education, in which experiments are based on the fractional calculus. The prototypes of analog and digital fractional-order proportional-integral-derivative (PID) controllers are built in the laboratory. These fractional-order PID controllers are applied to linear and nonlinear plants to demonstrate the effectiveness of fractional-order calculus in real time. These experiments are designed, developed, and implemented on the analog and digital platforms. These controllers are integrated to control the DC motor, brushless D

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Nataraj, P. S. V., and Sachin Tharewal. "On Fractional-Order QFT Controllers." Journal of Dynamic Systems, Measurement, and Control 129, no. 2 (2006): 212–18. http://dx.doi.org/10.1115/1.2432361.

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We propose the synthesis of robust fractional-order controllers using the principles of quantitative feedback theory (QFT). The resulting controllers are called as fractional-order QFT controllers. To demonstrate the synthesis method, we synthesize proportional-integral-derivative (PID) and more general types of fractional-order QFT controllers for a fractional-order plant, a DC motor, and a multistage flash desalination process.

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Song, Haiying, Dejie Duan, Yiying Yan, Xinyao Li, and Min Xie. "Fractional-Order Extremum Seeking Method for Maximum Torque per Ampere Control of Permanent Magnet Synchronous Motor." Fractal and Fractional 7, no. 12 (2023): 858. http://dx.doi.org/10.3390/fractalfract7120858.

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Maximum torque per ampere (MTPA) control of internal permanent magnet synchronous motors (IPMSM) has become integral to high-efficiency motor drives. To minimize the influence of the traditional model-based analytical solution method on the MTPA control strategy due to the parameter variations during the motor operation, an online search MTPA method without model-based fractional-order extremum seeking control (FO-ESC) is proposed. Compared with the traditional integer-order ESC method, the Oustaloup approximation-based fractional-order calculus provides additional factors and possibilities fo

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Jang, Sung Ho, and Min Jye Cho. "Relationship of the Nigrostriatal Tract with the Motor Function and the Corticospinal Tract in Chronic Hemiparetic Stroke Patients: A Diffusion Tensor Imaging Study." Healthcare 10, no. 4 (2022): 731. http://dx.doi.org/10.3390/healthcare10040731.

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This study investigated the relationship of the nigrostriatal tract (NST) with motor function and the corticospinal tract (CST) using diffusion tensor tractography in chronic hemiparetic stroke patients. Forty-three consecutive patients with putaminal hemorrhage in the chronic stage were recruited. The Motricity Index was used to evaluate the motor function of affected hemiparetic extremities. The fractional anisotropy and the tract volume of ipsilesional NST and ipsilesional CST were acquired. The tract volume (Rho = 0.824) of ipsilesional NST and fractional anisotropy (r = 0.682) and the tra

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Wang, Huan, Fangxu Han, Bo Zhang, and Guilin Zhao. "Vibration Suppression Algorithm for Electromechanical Equipment in Distributed Energy Supply Systems." Energies 18, no. 14 (2025): 3757. https://doi.org/10.3390/en18143757.

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In recent years, distributed energy power supply systems have been widely used in remote areas and extreme environments. However, the intermittent and uncertain output power may cause power grid fluctuations, leading to higher harmonics in electromechanical equipment, especially motors. For permanent magnet synchronous motor (PMSM) systems, an electromagnetic (EM) vibration can cause problems such as energy loss and mechanical wear. Therefore, it is necessary to design control algorithms that can effectively suppress EM vibration. To this end, a vibration suppression algorithm for fractional-s

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Zhong, Chong-Quan, Lin Wang, and Chuan-Fang Xu. "Path Tracking of Permanent Magnet Synchronous Motor Using Fractional Order Fuzzy PID Controller." Symmetry 13, no. 7 (2021): 1118. http://dx.doi.org/10.3390/sym13071118.

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Permanent magnet synchronous motor (PMSM) AC servo system has the characteristics of uncertainty, time-varying, nonlinear and fractional order. Applying the traditional control method is difficult to achieve the desired control effect. The fuzzy control has strong adaptability to the parameter change, nonlinearity and imprecise model of the controlled object. The simulation model of permanent magnet synchronous motor three closed-loop systems is established. The control principle and the realization of space vector pulse width modulation (SVPWM) are studied by using a vector control strategy.

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Amieur, T., D. Taibi, S. Kahla, M. Bechouat, and M. Sedraoui. "Tilt-fractional order proportional integral derivative control for DC motor using particle swarm optimization." Electrical Engineering & Electromechanics, no. 2 (March 5, 2023): 14–19. http://dx.doi.org/10.20998/2074-272x.2023.2.03.

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Introduction. Recently, the most desired goal in DC motor control is to achieve a good robustness and tracking dynamic of the set-point reference speed of the feedback control system. Problem. The used model should be as general as possible and consistently represent systems heterogeneous (which may contain electrical, mechanical, thermal, magnetic and so on). Goal. In this paper, the robust tilt-fractional order proportional integral derivative control is proposed. The objective is to optimize the controller parameters from solving the criterion integral time absolute error by particle swarm

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Zheng, Shiqi, Xiaoqi Tang, and Bao Song. "Fractional order controllers tuning strategy for permanent magnet synchronous motor servo drive system based on genetic algorithm–wavelet neural network hybrid method." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 17 (2014): 3218–39. http://dx.doi.org/10.1177/0954406214525603.

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In this paper, a novel tuning strategy for the fractional order proportional integral and fractional order [proportional integral] controllers is proposed for the permanent magnet synchronous motor servo drive system. The tuning strategy is based on a genetic algorithm–wavelet neural network hybrid method. Firstly, the initial values of the control parameters of the fractional order controllers are selected according to a new global tuning rule, which is based on the genetic algorithm and considers both the time- and frequency-domain specifications. Secondly, the wavelet neural network is util

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Etier, Issa, A. Anci Manon Mary, and Nithiyananthan Kannan. "MATLAB based design and performance analysis of electronically commutated BLDC motor." Indonesian Journal of Electrical Engineering and Computer Science 24, no. 1 (2021): 22–28. https://doi.org/10.11591/ijeecs.v24.i1.pp22-28.

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The main objective of this research work is to design the electronically communtated brushless direct current (BLDC) motor and analysis its performance in MATLAB environment. The use of BLDC engine is expanding daily, the performance analysis is progressively significant and the consumer loyalty is significant. In light of the ranking and requirements, the BLDC engine is planned. The BLDC motor is widely used in a variety of fields. Low ripple input supply and a suitable speed controller are needed to achieve desired motor output. The output of BLDC motors, such as torque, voltage, and speed r

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Etier, Issa, Anci Manon Mary A., and Nithiyananthan Kannan. "MATLAB based design and performance analysis of electronically commutated BLDC motor." Indonesian Journal of Electrical Engineering and Computer Science 24, no. 1 (2021): 22. http://dx.doi.org/10.11591/ijeecs.v24.i1.pp22-28.

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The main objective of this research work is to design the electronically communtated brushless direct current (BLDC) motor and analysis its performance in MATLAB environment. The use of BLDC engine is expanding daily, the performance analysis is progressively significant and the consumer loyalty is significant. In light of the ranking and requirements, the BLDC engine is planned. The BLDC motor is widely used in a variety of fields. Low ripple input supply and a suitable speed controller are needed to achieve desired motor output. The output of BLDC motors, such as torque, voltage, and speed r

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Edukondalu, Putta, Macharla Dileep Kumar, Punugoti Naga Chandu, et al. "A New Approach of BLDC Motor Using Fuzzy Fractional Order PID." International Journal of Innovative Research in Computer Science and Technology 10, no. 2 (2022): 615–24. http://dx.doi.org/10.55524/ijircst.2022.10.2.116.

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In order to manage the speed of brushless DC (BLDC) motors, this research presents a novel hybrid control method that simultaneously regulates the DC bus voltage of the inverter and the BLDC motor reference current. A fractional-order PID (FOPID) controller manages the BLDC motor reference current, and a fuzzy logic controller manages the inverter DC bus voltage. A modified harmony search (HS) metaheuristic technique is developed for adjusting the FOPID controller parameters. Three separate working scenarios—no load, varying load, and varying speed—are used to test the motor's capabilities. Ru

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John, Dina A., Saket Sehgal та Karabi Biswas. "Hardware Implementation and Performance Study of Analog PIλDμ Controllers on DC Motor". Fractal and Fractional 4, № 3 (2020): 34. http://dx.doi.org/10.3390/fractalfract4030034.

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In this paper, the performance of an analog PI λ D μ controller is done for speed regulation of a DC motor. The circuits for the fractional integrator and differentiator of PI λ D μ controller are designed by optimal pole-zero interlacing algorithm. The performance of the controller is compared with another PI λ D μ controller—in which the fractional integrator circuit employs a solid-state fractional capacitor. It can be verified from the results that using PI λ D μ controllers, the speed response of the DC motor has improved with reduction in settling time ( T s ), steady state error (SS err

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Liu, Wenyang, Yuhuan Zhang, Junbiao Shi, Bo Zhang, Huiyao Li, and Sha Zheng. "Motor control technology based on fractional active disturbance rejection." Journal of Physics: Conference Series 2703, no. 1 (2024): 012084. http://dx.doi.org/10.1088/1742-6596/2703/1/012084.

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Abstract For non-linear, strongly coupled, multivariable and naturally unstable motor control systems to realize the rapid return of the motor to the original equilibrium point without overshoot, the traditional PID controller algorithm is prone to defects such as large overshoot and long response time. The study proposes fractional order active disturbance rejection control for the motor self-balancing control method. A novel controller composed of a fractional order controller and an active disturbance rejection controller is designed and its control characteristics are analyzed and simulate

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Huang, Su Hai. "Projective Synchronization for Brushless DC Motor (BLDCM) with Fractional-Order." Applied Mechanics and Materials 160 (March 2012): 327–30. http://dx.doi.org/10.4028/www.scientific.net/amm.160.327.

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Based on orthogonal neural network，a stability theorem[9] and back-stepping approach，a novel adaptive nonlinear observer is designed for a class of fractional-order chaotic system where the nonlinear portion of the structure cannt be evaluated. The projective synchronization of fractional-order BLDCM chaotic system can be achieved.

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Smółka, Krzysztof, and Zbigniew Gmyrek. "Dynamics of the line-start reluctance motor with rotor made of SMC material." Open Physics 15, no. 1 (2017): 833–38. http://dx.doi.org/10.1515/phys-2017-0098.

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AbstractDesign and control of electric motors in such a way as to ensure the expected motor dynamics, are the problems studied for many years. Many researchers tried to solve this problem, for example by the design optimization or by the use of special control algorithms in electronic systems. In the case of low-power and fractional power motors, the manufacture cost of the final product is many times less than cost of electronic system powering them. The authors of this paper attempt to improve the dynamic of 120 W line-start synchronous reluctance motor, energized by 50 Hz mains (without any

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Haro-Larrode, Marta, and Alvaro Gomez-Jarreta. "Design Guidelines for Fractional Order Cascade Control in DC Motors: A Computational Analysis on Pairing Speed and Current Loop Orders Using Oustaloup’s Recursive Method." Machines 13, no. 1 (2025): 61. https://doi.org/10.3390/machines13010061.

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Nested, or cascade speed and torque control has been widely used for DC motors over recent decades. Simultaneously, fractional-order control schemes have emerged, offering additional degrees of control. However, adopting fractional-order controllers, particularly in cascade schemes, does not inherently guarantee better performance. Poorly paired fractional exponents for inner and outer PI controllers can worsen the DC motor’s behavior and controllability. Finding appropriate combinations of fractional exponents is therefore crucial to minimize experimental costs and achieve better dynamic resp

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Gmyrek, Zbigniew, and Krzysztof Smółka. "Efficiency Analysis of Fractional KiloWatt Reluctance Motors with Various Frame Sizes, Taking into Account the Impact of the Punching Process." Energies 13, no. 2 (2020): 357. http://dx.doi.org/10.3390/en13020357.

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The need to reduce electricity consumption by electrical devices, including electric motors, is the reason for the development of new designs. Designers strive to improve operational parameters, including efficiency, using, for example, new types of magnetic materials, new types of stator windings, etc. Currently, in mass production, motor cores are made of punched laminations—punching causes damage of core parts. For motors of relatively large geometrical sizes, this effect is ignored during design. For motors having small dimensions, this negative effect results in a reduction in efficiency,

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Jiang, Wei. "Analysis of cogging torque of permanent magnet synchronous motor with different pole slots." Highlights in Science, Engineering and Technology 32 (February 12, 2023): 48–55. http://dx.doi.org/10.54097/hset.v32i.4937.

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Using Maxwell finite element analysis software, the harmonic contents of no-load magnetic field and load magnetic field of three permanent magnet synchronous motors with 8 poles, 24 slots, 36 slots and 48 slots are calculated, and the radial force wave analysis is carried out. The influence of chute on cogging torque of integer slot motor and the influence of different pole arc coefficients and eccentricity of magnetic steel on sinusoidal distortion rate of magnetic field are analyzed. The analysis and calculation results show that, compared with fractional slot motor, the radial electromagnet

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Auer, David, Stefan Leitner, and Annette Muetze. "PCB motors for sub-fractional HP auxiliary fan drives: a feasibility study." e & i Elektrotechnik und Informationstechnik 139, no. 2 (2022): 139–48. http://dx.doi.org/10.1007/s00502-022-01006-3.

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AbstractThis paper investigates the use of PCB motors for sub-fractional HP auxiliary fan drives. First, the basic idea of PCB motors as well as the main advantages and disadvantages are discussed, followed by the description of the design process for a PCB motor for a small automotive fan application. Three different stator designs have been implemented, each on a 4-layer PCB. Finally, the paper gives an overview of the measurements performed and the results obtained for the prototypes of the manufactured PCB motors and suggests design improvements.

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Wolnik, Tomasz, Vítezslav Styskala, and Tomas Mlcak. "Study on the Selection of the Number of Magnetic Poles and the Slot-Pole Combinations in Fractional Slot PMSM Motor with a High Power Density." Energies 15, no. 1 (2021): 215. http://dx.doi.org/10.3390/en15010215.

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Fractional slot, PMSM motors with a properly designed electromagnetic circuit allow for obtaining high power density factors (more than 4 kW per 1 kg of total motor weight). The selection of the number of magnetic poles to the specific dimensions and operating conditions of the motor, as well as the number of slots for the selected number of magnetic poles is the subject of the analysis in this article. This issue is extremely important because it affects the mass of the motor, the value of shaft torque, shaft power and the value of rotor losses. The aim of the work is to select solutions with

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Bohdan, Kopchak, Marushchak Yaroslav, and Zaleski Jaroslaw. "DEVISING A PROCEDURE FOR THE PARAMETRIC SYNTHESIS OF FRACTIONAL ORDER CONTROLLERS AND THEIR IMPLEMENTATION IN THE FC–IM SYSTEM." Eastern-European Journal of Enterprise Technologies 5, no. 2 (107) (2020): 57–65. https://doi.org/10.15587/1729-4061.2020.213469.

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The modern industry is dominated by electric drives of the system frequency converter‒ induction motor, which employ integer-order controllers. Allowing the implementation and adjustment of fractional order controllers in the converter itself greatly expand their capabilities and, therefore, is relevant. This paper reports a procedure for the parametric synthesis of PI<sup>λ</sup>D<sup>μ</sup>-controllers of fractional order, providing for the use of the desired forms of fractional order, as well as their practical implementation in the system frequency converter–induction moto

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Hodge, Jacquie, Bradley Goodyear, Helen Carlson, Xing-Chang Wei, and Adam Kirton. "Segmental Diffusion Properties of the Corticospinal Tract and Motor Outcome in Hemiparetic Children With Perinatal Stroke." Journal of Child Neurology 32, no. 6 (2017): 550–59. http://dx.doi.org/10.1177/0883073817696815.

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Perinatal stroke injures developing motor systems, resulting in hemiparetic cerebral palsy. Diffusion tensor imaging can explore structural connectivity. We used diffusion tensor imaging to assess corticospinal tract diffusion in hemiparetic children with perinatal stroke. Twenty-eight children (6-18 years) with unilateral stroke underwent diffusion tensor imaging. Four corticospinal tract assessments included full tract, partial tract, minitract and region of interest. Diffusion characteristics (fractional anisotropy, mean, axial, and radial diffusivity) were calculated. Ratios (lesioned/nonl

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Lin Li-Feng, Zhou Xing-Wang, and Ma Hong. "Subdiffusive transport of fractional two-headed molecular motor." Acta Physica Sinica 62, no. 24 (2013): 240501. http://dx.doi.org/10.7498/aps.62.240501.

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Ben Salem, Fatma, Motab Turki Almousa, and Nabil Derbel. "Enhanced Control Technique for Induction Motor Drives in Electric Vehicles: A Fractional-Order Sliding Mode Approach with DTC-SVM." Energies 17, no. 17 (2024): 4340. http://dx.doi.org/10.3390/en17174340.

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The present paper proposes the use of fractional derivatives in the definition of sliding function, giving a new mode control applied to induction motor drives in electric vehicle (EV) applications. The proposed Fractional-Order Sliding Mode Direct Torque Control-Space Vector Modulation (FOSM-DTC-SVM) strategy aims to address the limitations of conventional control techniques and mitigate torque and flux ripples in induction motor systems. The paper first introduces the motivation for using fractional-order control methods to handle the nonlinear and fractional characteristics inherent in indu

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LIU, LING, DELIANG LIANG, CHONGXIN LIU, and QUN ZHANG. "NONLINEAR STATE OBSERVER DESIGN FOR PROJECTIVE SYNCHRONIZATION OF FRACTIONAL-ORDER PERMANENT MAGNET SYNCHRONOUS MOTOR." International Journal of Modern Physics B 26, no. 30 (2012): 1250166. http://dx.doi.org/10.1142/s0217979212501664.

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In this paper, a nonlinear state observer control strategy is developed for projective self-synchronization of the fractional-order chaotic attractors of a permanent magnet synchronous motor (PMSM) system. The mathematical model of PMSM system in a smooth fractional-order form is derived by using the fractional derivative theory. A state observer control design can achieve the full-state projective synchronization of the fractional-order PMSM (FO-PMSM) system without the limitation of partial-linearity. Global stability and asymptotic synchronization between the outputs of drive system and res

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Victor, Busher, Melnikova Lubov, and Horoshko Vasiliy. "SYNTHESIS AND IMPLEMENTATION OF FRACTIONAL-ORDER CONTROLLERS IN A CURRENT CURCUIT OF THE MOTOR WITH SERIES EXCITATION." Eastern-European Journal of Enterprise Technologies 2, no. 2 (98) (2019): 63–72. https://doi.org/10.15587/1729-4061.2019.161352.

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We have synthesized and investigated fractional-order regulators, which provide for a series of technological processes the best indicators for the quality of transient process, specifically DC motors with series excitation. Given the dependence of magnetic flux on the armature current and saturation of the magnetic system, a motor armature circuit turns into a system with significant nonlinear properties under static and dynamic modes. However, it can be described with high accuracy by the transfer function of fractional order. Owing to the appropriate fractional integral-differentiating regu

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Clark, Lindsey, John Shelley-Tremblay, and Julie Cwikla. "Shared Developmental Trajectories for Fractional Reasoning and Fine Motor Ability in 4 and 5 Year Olds." Behavioral Sciences 11, no. 2 (2021): 26. http://dx.doi.org/10.3390/bs11020026.

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We investigated preschool-aged children’s understanding of early fractional tasks and how that performance correlates with fine motor skills and use of gestures while counting. Participants were 33 preschoolers aged 4 to 5 in two Southeastern public elementary schools. Children were tested individually in an interview-like setting. Mathematics tasks were presented in a paper and pencil format and the Grooved Pegboard test assessed fine motor skills. Finally, utilization of gestures was evaluated by taking a behavioral rating of the child’s hand morphology, accuracy of gestures, and synchrony o

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Khandani, Khosro, and Ali Akbar Jalali. "Robust Fractional Order Control of a DC Motor Based on Particle Swarm Optimization." Advanced Materials Research 403-408 (November 2011): 5030–37. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.5030.

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his paper presents a robust stable controller for speed control of a linear permanent magnet DC motor. A fractional controller is presented and the optimal parameters of this controller are obtained using Particle Swarm Optimization (PSO) technique. Interval uncertainty is considered in the parameters of the DC motor. Stability of the closed loop system with the proposed controller in presence of interval uncertainty is verified through the extension of Kharitanov’s theorem for fractional order systems. Simulation results demonstrate the successful performance of the proposed controller.

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