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Journal articles on the topic 'Fractional Slot winding SyR'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Wang, Xiu Ping, Chun Yu Qu, Rui Guo, and Jun You Zhao. "Performance Analysis of Novel Fractional-Slot Concentrated-Winding Permanent Magnet Machine with Different Pole and Slot Matching." Applied Mechanics and Materials 668-669 (October 2014): 625–28. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.625.

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In order to analyze the possibility of the fractional-slot concentrated-winding for wind generation, this paper states the merits of fractional-slot concentrated-winding permanent magnet machines, and then analyzes the electromagnetic design rules of fractional-slot concentrated-winding. The fractional-slot concentrated-winding permanent magnet machine is modeled and designed in electromagnetic, and its performance is analyzed, some conclusions can be obtained, which will provide reference for further analysis and application of fractional-slot concentrated-winding PM machine.

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2

Wu, Chuan Guo, Jian Zhong Zhang, Yu Ting Chen, and Ming Cheng. "Comparison Study of Tubular Linear Surface-Mounted Permanent Magnet Actuator with Different Fractional Slot Winding." Applied Mechanics and Materials 416-417 (September 2013): 281–86. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.281.

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There are many slot/pole combinations may be selected for the fractional slot tubular linear surface-mounted motors (TLSPM) used as actuators for high voltage breakers, such as 15/8, 15/4, 15/2, 12/8. Compared with integral slot winding, the fractional slot winding has more advantages. Since the winding arrangement will be changed due to the different slot/pole numbers. The characteristics of the TLSPM with different fractional slot, such as detent force, back EMF, are analyzed and compared in this paper. It is shown that good performance may be achieved by selecting appropriate fractional slo

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3

Wang, Xiu Ping, and Chun Yu Qu. "On the Possibility of Fractional-Slot Concentrated-Winding Permanent Magnet Machine for Wind Power Generation." Advanced Materials Research 945-949 (June 2014): 2858–62. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.2858.

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In order to obtain the low synchronous speed, fractional slot concentrated winding is adopted in generation system. This paper analyzed the pole/slot combination rule, and studied the electromagnetic design method. By the finite element software, the characteristics is analyzed for this fractional-slot concentrated-winding permanent magnet generator, the result shows that this generator has a good performance, thus yet proves that fractional slot concentrated winding scheme is feasible.

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4

Wang, Xiu Ping, Chun Yu Qu, Xiao Feng Xu, and Dong Rui Wang. "Design and Analysis of Fractional-Slot Concentrated-Winding Permanent Magnet Machine for Wind Power Generation." Applied Mechanics and Materials 668-669 (October 2014): 611–14. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.611.

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In order to obtain the low synchronous speed, fractional-slot concentrated-winding PM machine is adopted to wind power generation system. This paper analyzed the pole slot combination rule, and then studied the electromagnetic design method by taking 12-slot and 10-pole machine. By using the finite element software, the characteristics is analyzed for this fractional-slot concentrated-winding permanent magnet generator, the research results show that this generator has good performance, thus prove that fractional-slot concentrated-winding scheme is feasible and effective.

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5

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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6

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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7

Vialcev, Georgy B., Dmitriy M. Toporkov, and Olga E. Gubareva. "Investigation of Winding Circuit Effect on Characteristics of Permanent Magnet Synchronous Machines with Fractional Slot Concentrated Winding." Applied Mechanics and Materials 698 (December 2014): 30–34. http://dx.doi.org/10.4028/www.scientific.net/amm.698.30.

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Star-connected and delta-connected circuits of fractional slot concentrated winding in permanent magnets synchronous machines (SMPM) are described in the paper. Advantages and drawbacks of these winding circuit types are shown. Investigation results on the characteristics degradation in the machines with fractional slot concentrated windings owing to delta-connected circuit are presented.

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8

Kim, Jeongwon, Ju Lee, and Hyunwoo Kim. "A Comparative Study of Pole–Slot Combination with Fractional Slot Concentrated Winding in Outer Rotor Permanent Magnet Synchronous Generator for Hybrid Drone System." Machines 12, no. 7 (2024): 464. http://dx.doi.org/10.3390/machines12070464.

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This paper is a comparative study of pole–slot combinations with fractional slot concentrated windings in an outer rotor permanent magnet synchronous generator (ORPMSG) for a hybrid drone system. Fractional slot machines have been studied for automotive applications because of their high performance and simple winding manufacturing, compared with those of integer slot machines. In this study, four pole–slot combinations of ORPMSG with fractional slot concentrated windings were selected for comparison with the performance of the hybrid drone system. Based on the results of a finite element anal

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9

Laksar, Jan, Lukáš Veg, and Roman Pechánek. "Challenges in Winding Design and Thermal Calculations: Physical Model of Permanent Magnet Synchronous Machine." Machines 9, no. 10 (2021): 234. http://dx.doi.org/10.3390/machines9100234.

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Interest in multilayer windings is increasing with the application of the hairpin winding technology to the manufacturing of electrical machines. Therefore, the four-layer fractional slot concentrated winding is used for the initial design of the machine in this paper. The proposed physical model of the machine uses winding with a relatively high number of turns which is inappropriate to hairpin winding. Therefore the round-wire winding is created and the three-layer winding is derived and analyzed including the effect on the slot leakage inductance. The thermal analysis is then applied to the

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10

Yokoi, Yuichi, Tsuyoshi Higuchi, and Yasuhiro Miyamoto. "General formulation of winding factor for fractional‐slot concentrated winding design." IET Electric Power Applications 10, no. 4 (2016): 231–39. http://dx.doi.org/10.1049/iet-epa.2015.0092.

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11

Mohd Jamil, Mohd Luqman, Zulfikri Zaki Zolkapli, Auzani Jidin, Raja Nor Firdaus Raja Othman, and Tole Sutikno. "Electromagnetic Performance due to Tooth-tip Design in Fractional-slot PM Brushless Machines." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 4 (2015): 860. http://dx.doi.org/10.11591/ijpeds.v6.i4.pp860-868.

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Permanent Magnet (PM) machines are favorable as an alternative to other machine topologies due to simpler construction and high torque density. However, it may result hight torque ripple due to an influence of cogging torque and electronic commutation. In this paper, comparisons of phase back-emf, static torque and cogging torque due to influence of tooth-tip asymmetry in 12-slot/10-pole double-layer and 12-slot/10-pole single layer winding machines are carried out using 2D Finite-Element Analysis. At rated condition, the stator asymmetry has great influence on the torque performance as there

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12

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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13

Sulaiman, Farina, R. N. Firdaus, M. S. Ahmad, A. Jidin, and T. Sutikno. "Winding Arrangement of A New Type Hollow Rotor BLDC Motor." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 3 (2018): 933. http://dx.doi.org/10.11591/ijpeds.v9.i3.pp933-946.

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This paper discusses about winding arrangement of fractional slot of a new type hollow rotor Brushless Direct Current (BLDC) motor. Hollow rotor has higher performance compared to other BLDC motor because it minimizes the unused flux below permanent magnet and maximize torque produce by the motor. It’s also known that 8 pole motor is favorite used in industrial because it has an optimum space of permanent magnet for a smaller motor size. The number of pole will affect the maximum speed of the rotor. Thus, the objective of this research is to investigate the best winding arrangement for 8 pole

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14

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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15

Boglietti, Aldo, Marco Cossale, Silvio Vaschetto, and Thiago Dutra. "Thermal Conductivity Evaluation of Fractional-Slot Concentrated-Winding Machines." IEEE Transactions on Industry Applications 53, no. 3 (2017): 2059–65. http://dx.doi.org/10.1109/tia.2017.2672518.

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16

Wang, Jiabin. "Performance evaluation of fractional-slot tubular permanent magnet machines with low space harmonics." Archives of Electrical Engineering 64, no. 4 (2015): 655–68. http://dx.doi.org/10.1515/aee-2015-0049.

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Abstract This paper evaluates the perforamnce of fractional-slot per pole winding configurations for tubular permanent magnet (PM) machines that can effectively eliminate the most undesirable space harmonics in a simple and cost-effective manner. The benefits of the proposed machine topology winding configurations are illustrated through comparison with 9-slot, 10-pole tubular PM machine developed for a free piston energy converter under the same specification and volumetric constraints. It has been shown that the proposed machine topology results in more than 7 times reduction in the eddy cur

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17

Islam, Md Sariful, Md Ashfanoor Kabir, Rajib Mikail, and Iqbal Husain. "Space-Shifted Wye–Delta Winding to Minimize Space Harmonics of Fractional-Slot Winding." IEEE Transactions on Industry Applications 56, no. 3 (2020): 2520–30. http://dx.doi.org/10.1109/tia.2020.2975766.

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18

Prieto, Borja, Miguel Martinez-Iturralde, Luis Fontan, and Ibon Elosegui. "Analytical Calculation of the Slot Leakage Inductance in Fractional-Slot Concentrated-Winding Machines." IEEE Transactions on Industrial Electronics 62, no. 5 (2015): 2742–52. http://dx.doi.org/10.1109/tie.2014.2362094.

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19

Korneev, Vyacheslav, Alexander Pristup, and Olga E. Gubareva. "Winding Factor of Permanent Magnet Synchronous Machines with Fractional Slot Concentrated Windings." Applied Mechanics and Materials 698 (December 2014): 73–76. http://dx.doi.org/10.4028/www.scientific.net/amm.698.73.

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The use of fractional slot concentrated windings in electrical machines has a variety of advantages. A winding factor is one of the most important parameter which is necessary for electrical machines designing and modeling.

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20

Haouas, Elyes, Imen Abdennadher, and Ahmed Masmoudi. "Multi-Phase Fractional-Slot PM Synchronous Machines with Enhanced Open-Circuit Fault-Tolerance: Viable Candidates for Automotive Applications." World Electric Vehicle Journal 12, no. 1 (2021): 32. http://dx.doi.org/10.3390/wevj12010032.

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This paper deals with the winding arrangement of multi-phase fractional-slot permanent magnet (PM) synchronous machines (FSPMSMs), with emphasis on the enhancement of their open-circuit fault-tolerance capability. FSPMSMs are reputed by their attractive intrinsic fault-tolerance capability, which increases with the number of phases. Of particular interest is the open-circuit fault-tolerance capability, which could be significantly enhanced through the parallel connection of the coils or suitable combinations of the coils of each phase. Nevertheless, such an arrangement of the armature winding

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21

Guo, Liyan, Xiangyi Li, Huatuo Zhang, Huimin Wang, Zhichen Lin, and Tao Zhang. "Design of an Unequal-Teeth Stator Structure for a Low-Vibration Noise Permanent Magnet Synchronous Machine Considering Teeth Modulation." World Electric Vehicle Journal 16, no. 7 (2025): 339. https://doi.org/10.3390/wevj16070339.

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To address the high vibration and noise in fractional-slot concentrated-winding permanent magnet synchronous machines for electric vehicles, this study focuses on a 30-pole, 36-slot fractional-slot concentrated-winding permanent magnet synchronous machine. These issues are mainly caused by the modulation of high-order radial electromagnetic forces into low-order radial electromagnetic forces, known as the teeth modulation effect. The characteristics of radial electromagnetic forces are analyzed using the Maxwell stress tensor method, and the modulation process is examined. A novel unequal-teet

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22

Mohd Jamil, Mohd Luqman, Syed Muhammad S. A. Al-Habshi, Md Nazri Othman, and Tole Sutikno. "Performance of Fractional-Slot Winding PM Machines due to Un-even Coil Turns and Asymmetric Design of Stator Teeth." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 4 (2015): 853. http://dx.doi.org/10.11591/ijpeds.v6.i4.pp853-859.

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PM machines in which slot number and pole number combination differs by one have to be configured with asymmetric winding pattern in order to maximize it back-emf performance. However, this asymmetric winding configuration inherently results an unwanted Unabalanced Magnetic Force (UMF). Investigations of electromagnetic performance of fractional-slot asymmetric winding PM machines using 2-D Finite-Element Analysis are presented. The investigations are mainly driven by the effort of minimizing the UMF. By employing techniques such as non-uniform number of coil turns in every tooth and asymmetri

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23

Dutta, R., M. F. Rahman, and L. Chong. "Winding Inductances of an Interior Permanent Magnet (IPM) Machine With Fractional Slot Concentrated Winding." IEEE Transactions on Magnetics 48, no. 12 (2012): 4842–49. http://dx.doi.org/10.1109/tmag.2012.2203140.

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24

Abdel-Khalik, Ayman Samy, Shehab Ahmed, and Ahmed M. Massoud. "Low Space Harmonics Cancelation in Double-Layer Fractional Slot Winding Using Dual Multiphase Winding." IEEE Transactions on Magnetics 51, no. 5 (2015): 1–10. http://dx.doi.org/10.1109/tmag.2014.2364988.

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25

Kang, Huilin, Libing Zhou, and Jin Wang. "Harmonic Winding Factors and MMF Analysis for Five-phase Fractional-slot Concentrated Winding PMSM." Journal of international Conference on Electrical Machines and Systems 3, no. 1 (2014): 20–26. http://dx.doi.org/10.11142/jicems.2014.3.1.20.

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26

Tsuboi, Kazuo, and Isao Hirotsuka. "Abnormal starting phenomena of a fractional slot winding induction motor." IEEJ Transactions on Power and Energy 106, no. 7 (1986): 587–94. http://dx.doi.org/10.1541/ieejpes1972.106.587.

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27

Zhao, Weiduo, Shaopeng Wu, Shumei Cui, Chris Gerada, He Zhang, and Zhuang Xu. "A Fractional Slot Multiphase Air-Core Compulsator With Concentrated Winding." IEEE Transactions on Plasma Science 45, no. 7 (2017): 1387–93. http://dx.doi.org/10.1109/tps.2017.2705243.

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28

Bianchi, N., S. Bolognani, M. D. Pre, and G. Grezzani. "Design considerations for fractional-slot winding configurations of synchronous machines." IEEE Transactions on Industry Applications 42, no. 4 (2006): 997–1006. http://dx.doi.org/10.1109/tia.2006.876070.

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29

Le Besnerais, Jean, Vincent Lanfranchi, Michel Hecquet, Pascal Brochet, and Guy Friedrich. "Acoustic noise of electromagnetic origin in a fractional‐slot induction machine." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 27, no. 5 (2008): 1033–52. http://dx.doi.org/10.1108/03321640810890753.

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PurposeThe purpose of this paper is to apply a fast analytical model of the acoustic behaviour of pulse‐width modulation (PWM) controlled induction machines to a fractional‐slot winding machine, and to analytically clarify the interaction between space harmonics and time harmonics in audible electromagnetic noise spectrum.Design/methodology/approachA multilayer single‐phase equivalent circuit calculates the stator and rotor currents. Air‐gap radial flux density, which is supposed to be the only source of acoustic noise, is then computed with winding functions formalism. Mechanical and acoustic

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30

Si, Meng, and Ying Li Yang. "The Influence of Pole-Slot Match on Magnetomotive Force with Concentrated Fractional-Slot Winding." Applied Mechanics and Materials 397-400 (September 2013): 1209–13. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.1209.

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Magnetic field, produced by magnetomotive force (MMF) harmonic waves, is harmful to motors, by reducing efficiency of motors, resulting in demagnetization of permanent magnets and so on. It is also responsible for the increase of eddy current loss and the rise of temperature of rotors. Thus, research on the influence of pole-slot match on MMF with concentrated fractional-slot winding is necessary. This paper aims at researching unit motors with different cooperation of slots and poles. First, basic principle of MMF is described. Then, with different kinds of unit motors, MMF of harmonic waves

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31

Li, Dawei, Tianjie Zou, Ronghai Qu, and Dong Jiang. "Analysis of Fractional-Slot Concentrated Winding PM Vernier Machines With Regular Open-Slot Stators." IEEE Transactions on Industry Applications 54, no. 2 (2018): 1320–30. http://dx.doi.org/10.1109/tia.2017.2778686.

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32

Yang, Qifan, Xiaoke Liu, Yue Yang, et al. "Performance analysis of low-speed and large-thrust cylindrical linear motor with double-layer fractional-slot winding." MATEC Web of Conferences 336 (2021): 02021. http://dx.doi.org/10.1051/matecconf/202133602021.

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For low-speed and large-thrust situations, the single-layer winding permanent magnet linear motor is inefficient because of its large distance, and the thrust fluctuation is large. In order to solve this problem, a finite element analysis model of cylindrical permanent magnet linear motor is established in a cylindrical permanent magnet linear motor, and the Ansoft software simulation is used to ensure the positioning force and thrust of the double-layer winding motor and single-layer winding motor under the same key parameters. The performance of double-layer winding motor and Single-layer wi

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33

Chen, Qixu, Guoli Li, Zhe Qian, Wenping Cao, and Qunjing Wang. "Analysis of winding MMF of PMSM with multi-phase and multi-layer layout using holospectrum method." International Journal of Applied Electromagnetics and Mechanics 68, no. 4 (2022): 387–403. http://dx.doi.org/10.3233/jae-210025.

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A holographic spectrum method (HSM) of multi-phase and multi-layer winding magnetomotive force (MMF) for 12-slot/10-pole combination with fractional-slot concentrated-winding (FSCW) is proposed in this paper. Taking two kinds of traditional winding layout as example, amplitude and phase distribution of the vth harmonic are calculated. The holospectrum of the multi-phase and multi-layer winding are derived based on three-phase single-layer (TP-SL) and three-phase double-layer (TP-DL) holospectrum theory. Then the finite element method (FEM) is used to validate the resultant winding MMF calculat

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34

Akatsu, Kan, and Shinji Wakui. "A Design Method of Fractional-Slot Concentrated Winding SPMSM Using Winding factor and Inductance factor." IEEJ Transactions on Industry Applications 127, no. 11 (2007): 1171–79. http://dx.doi.org/10.1541/ieejias.127.1171.

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35

Wang, Aimeng, and Shanshan Li. "Investigation of E-Core Modular Permanent Magnet Wind Turbine." Energies 13, no. 7 (2020): 1751. http://dx.doi.org/10.3390/en13071751.

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Under the adverse trend of fossil energy attenuation and air pollution, wind power effectively alleviates the global energy crisis and environmental pollution. For wind turbines, especially large offshore wind turbines, their transportation, installation, and maintenance are very inconvenient. In order to solve this problem, this paper presents an E-core stator modular machine which inserts stator gap into the unwounded teeth of the fractional-slot concentrated winding (FSCW) permanent magnet (PM) machine. The winding factor of the new stator structure machine was derived. The electromagnetic

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36

Seo, Un-Jae, Yon-Do Chun, Jae-Hak Choi, Shi-Uk Chung, Pil-Wan Han, and Dae-Hyun Koo. "General Characteristic of Fractional Slot Double Layer Concentrated Winding Synchronous Machine." Journal of Electrical Engineering and Technology 8, no. 2 (2013): 282–87. http://dx.doi.org/10.5370/jeet.2013.8.2.282.

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37

Dmitrievskii, Vladimir, Vladimir Prakht, and Vadim Kazakbaev. "IE5 Energy-Efficiency Class Synchronous Reluctance Motor With Fractional Slot Winding." IEEE Transactions on Industry Applications 55, no. 5 (2019): 4676–84. http://dx.doi.org/10.1109/tia.2019.2924405.

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38

EL‐Refaie, Ayman M., Z. Q. Zhu, Thomas M. Jahns, and David Howe. "Winding inductances of fractional slot surface‐mounted permanent magnet brushless machines." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 28, no. 6 (2009): 1590–606. http://dx.doi.org/10.1108/03321640910999888.

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39

Sarigiannidis, Athanasios G., Minos E. Beniakar, Panagiotis E. Kakosimos, Antonios G. Kladas, Luca Papini, and Chris Gerada. "Fault Tolerant Design of Fractional Slot Winding Permanent Magnet Aerospace Actuator." IEEE Transactions on Transportation Electrification 2, no. 3 (2016): 380–90. http://dx.doi.org/10.1109/tte.2016.2574947.

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40

Salminen, P., T. Jokinen, and J. Pyrhönen. "Pull-out torque of fractional-slot PM-motors with concentrated winding." IEE Proceedings - Electric Power Applications 152, no. 6 (2005): 1440. http://dx.doi.org/10.1049/ip-epa:20050175.

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41

Fan, Xinggang, Bin Zhang, Ronghai Qu, Dawei Li, Jian Li, and Yongsheng Huo. "Comparative Thermal Analysis of IPMSMs With Integral-Slot Distributed-Winding (ISDW) and Fractional-Slot Concentrated-Winding (FSCW) for Electric Vehicle Application." IEEE Transactions on Industry Applications 55, no. 4 (2019): 3577–88. http://dx.doi.org/10.1109/tia.2019.2903187.

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42

Gundogdu, Tayfun, Zi-Qiang Zhu, and Jean-Claude Mipo. "Design and Analysis of Advanced Nonoverlapping Winding Induction Machines for EV/HEV Applications." Energies 14, no. 20 (2021): 6849. http://dx.doi.org/10.3390/en14206849.

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This paper presents a detailed analysis and design guidelines for advanced nonoverlapping winding induction machines (AIMs) with coil-pitch of two slot-pitches by considering some vital empirical rules and flux-weakening characteristics. The aim of the study is to develop a type of new winding and stator topology for induction machines (IMs) that will lead to a decrease in total axial length without sacrificing torque, power, and efficiency. The key performance characteristics of the improved AIMs are investigated by 2D time-stepping finite element analysis (FEA) and compared with those of IMs

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43

Rudden, Isaac, Guang-Jin Li, Zi-Qiang Zhu, Alexander Duke, and Richard Clark. "Analysis of MW-Level Offshore Wind Turbine Generators with Dual Star–Delta Fractional-Slot Windings." Energies 17, no. 12 (2024): 2958. http://dx.doi.org/10.3390/en17122958.

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This paper investigates the use of fractional-slot concentrated windings (FSCWs) in large-scale (MW level) offshore wind generators. It focuses specifically on a power rating of 3 MW and uses an existing direct-drive synchronous PM machine (DD-SPM) with 480s/160p and dual three-phase integer-slot winding (ISW) as a baseline. A multiple of the common 12s/10p FSCW machine is used that matches the electrical frequency of the ISW machine, yielding a 192s/160p dual three-phase machine. The hybrid star–delta connection has grown increasingly popular owing to its unique harmonic cancellation properti

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44

Kim, Byungtaek. "Investigation on Slot–Pole Combinations of a PM Vernier Motor with Fractional-Slot Concentrated Winding Configurations." Energies 10, no. 9 (2017): 1310. http://dx.doi.org/10.3390/en10091310.

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45

Son, Rak-Won, and Ju Lee. "A Study on 36-Slot/10-Pole Fractional-Slot Single Layer Winding for Modular Synchronous Machine." Transactions of The Korean Institute of Electrical Engineers 73, no. 12 (2024): 2217–23. https://doi.org/10.5370/kiee.2024.73.12.2217.

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Barcaro, Massimo, Nicola Bianchi, and Freddy Magnussen. "Six-Phase Supply Feasibility Using a PM Fractional-Slot Dual Winding Machine." IEEE Transactions on Industry Applications 47, no. 5 (2011): 2042–50. http://dx.doi.org/10.1109/tia.2011.2161859.

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Alipour-Sarabi, Ramin, Zahra Nasiri-Gheidari, Farid Tootoonchian, and Hashem Oraee. "Analysis of Winding Configurations and Slot-Pole Combinations in Fractional-Slots Resolvers." IEEE Sensors Journal 17, no. 14 (2017): 4420–28. http://dx.doi.org/10.1109/jsen.2017.2707523.

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Shi, Jiameng, Hao Kong, Liren Huang, Qinfen Lu, and Yunyue Ye. "Investigation of modular odd-pole PM linear synchronous motors with flux gaps." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 35, no. 2 (2016): 424–38. http://dx.doi.org/10.1108/compel-02-2015-0067.

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Abstract:

Purpose – Nowadays, to simplify manufacture process and improve fault-tolerant capability, more and more modular electrical machines are being applied in industrial areas. The purpose of this paper is to investigate a novel modular single-sided flat permanent magnet linear synchronous motor (PMLSM), which adopts segmented armature with the required flux gaps between segments to enhance the performance. Design/methodology/approach – Using 2D finite element analysis, the performances, such as open-flux linkage, back-EMF, average thrust force, thrust ripple, etc., are compared in different values

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Hebala, Ahmed, Stefano Nuzzo, Peter H. Connor, Giuseppe Volpe, Chris Gerada, and Michael Galea. "Analysis and Mitigation of AC Losses in High Performance Propulsion Motors." Machines 10, no. 9 (2022): 780. http://dx.doi.org/10.3390/machines10090780.

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In this paper, the AC copper losses in classical random windings are investigated and mitigated using several techniques across a range of permanent magnet synchronous motor designs. At high operating frequencies, AC copper losses can represent a substantial share of the total loss in electrical machines, thus, reducing the machine’s overall performance, and increasing the thermal loading. Recently, different approaches for modelling AC copper losses have been proposed. This paper utilises simulation software to quantify the expected AC losses in six different propulsion motor designs. The mot

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Jung, Young-Hoon, Dong-Min Kim, Kyoung-Soo Cha, Soo-Hwan Park, and Min-Ro Park. "Vibration Reduction of Permanent Magnet Synchronous Motors by Four-Layer Winding: Mathematical Modeling and Experimental Validation." Mathematics 13, no. 10 (2025): 1603. https://doi.org/10.3390/math13101603.

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This paper proposes a vibration reduction method for fractional slot concentrated winding (FSCW) permanent magnet synchronous motors (PMSMs) by applying a four-layer winding configuration. The radial electromagnetic force (REF), particularly its low space-harmonics, causes significant vibration in PMSMs. These low-order REF components are influenced by sub-harmonics in the airgap magnetic flux density (MFD), which occur at frequencies lower than the fundamental component generated by the armature magnetomotive force (MMF) in FSCW PMSMs. To mitigate these sub-harmonics in the MFD, the four-laye

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