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Journal articles on the topic 'Fractional Slot'

Author: Grafiati

Published: 1 April 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

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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4

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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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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6

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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7

NUR, TAJUDDIN, GUSTIESAR ALBARRY YANASTANTO, MARCHELL MORDEKHAI HALIM, MELISA MULYADI, DUMA KRISTINA YANTI HUTAPEA, and ANTHON DE FRETES. "Perbandingan Torka Cogging Generator Integral dan Fractional untuk Pembangkit Listrik Tenaga Tenaga Angin." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 11, no. 3 (2023): 581. http://dx.doi.org/10.26760/elkomika.v11i3.581.

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ABSTRAKPenelitian ini membahas penurunan torka cogging pada generator sinkron magnet permanen untuk untuk aplikasi pada pembangkit listrik tenaga angin. Untuk meminimalkan nilai torka cogging, dapat dilakukan berbagai teknik, salah satunya adalah kombinasi teknik pangkasan magnet dan alur tiruan pada inti jangkar. Teknik ini diterapkan terhadap generator sinkron magnet permanen tipe integral slot dengan jumlah gigi alur 30 dan kutub 10 dan tipe fractional slot number dengan jumlah gigi alur 24 dan kutub 10. Berdasarkan hasil analisis menggunakan metode elemen hingga, didapatkan bahwa tipe frac

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8

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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9

Astuti, Dian Widi, Muhamad Asvial, Fitri Yuli Zulkifli, and Eko Tjipto Rahardjo. "Bandwidth Enhancement on Half-Mode Substrate Integrated Waveguide Antenna Using Cavity-Backed Triangular Slot." International Journal of Antennas and Propagation 2020 (December 2, 2020): 1–9. http://dx.doi.org/10.1155/2020/1212894.

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This paper proposes bandwidth enhancement of a cavity-backed slot antenna using a triangular slot on a half-mode substrate integrated waveguide structure antenna. The bandwidth enhancement was achieved by combining the fixed TE101 and the downward shifting TE102 modes, resulting in hybrid modes. The design evolution of the slot antenna from a half nonresonating rectangular slot to a triangular slot antenna increased the fractional bandwidth. The simulation result showed that fractional bandwidth increased from 6.27% to 9.1%. It was confirmed by measurement that the fractional bandwidth of 9.87

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10

Said, Sri Mawar, Tajuddin Nur, and Herlina Herlina. "The Application of Magnet Structures to Reduce the Cogging Torque Associated with Fractional Slot Number in Permanent Magnet Generators." Energies 17, no. 11 (2024): 2505. http://dx.doi.org/10.3390/en17112505.

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This study proposes the application of a magnet structure to minimize the cogging torque (CT) and unstable pull in endless magnet generators. The investigation was conducted using an integral slot number of 24 slots and 10 poles, as well as a fractional slot number of 18 slots and 8 poles. The purpose of combining the multi-slot mechanism with pole arc optimization at the magnet edge was to underestimate the peak CT through a reduction in the quantity of tangential flux density. However, the results indicate that CT did not decrease significantly using this method, and this led to the optimiza

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11

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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12

Nur, Tajuddin, Chairul G. Irianto, Syamsir Abduh, Herlina, Pudji Irasari, and Eduard Muljadi. "Analysis The Effect Of Magnet Structure On The Unbalance Magnetic Pull Of Fractional Slot Number Type In Permanent Magnet Machine." Current Integrative Engineering 2, no. 1 (2024): 7–14. http://dx.doi.org/10.59762/cie570390542120240205132702.

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Within this study, the effect of magnet structure on the unbalanced magnetic draw (UMP) of fractional slot number permanent magnet machines (PMMs) was methodically investigated. The literature revealed that fractional slot number PMMs use a variety of magnet structure configurations, including radial, parallel, and hybrid arrangements. Different magnet configurations were discovered to affect the distribution of magnetic flux density, thereby impacting UMP concentrations. The effect of various magnet geometries, including arc, rectangular, and trapezoidal, on UMP was examined. Moreover, the se

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13

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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14

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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15

Chen, Qiang, Hou Zhang, Lu-chun Yang, Bin-bin Li, and Xue-liang Min. "Wideband Inverted-L Microstrip-via-Fed Circularly Polarized Antenna with Asymmetrical Ground for WLAN/Wimax Applications." Frequenz 72, no. 7-8 (2018): 333–41. http://dx.doi.org/10.1515/freq-2017-0075.

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Abstract A design with wideband and circularly polarized radiation antenna from an open-slot antenna has been demonstrated in this paper. The proposed antenna, which consists of an open slot and an inverted-L strip feeding, provides a large bandwidth, which completely cover the Wimax (3.3–3.8 GHz) and WLAN (2.4–2.48 GHz) bands. The open slot is formed by an modified ground plane with a slit cut and monofilar spiral stubs employed, which fed by an asymmetrical inverted-L strip feedline using a via. As demonstrated, the CP operation was significantly improved by loading monofilar spiral stubs co

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16

Torreggiani, Ambra, Claudio Bianchini, Matteo Davoli, and Alberto Bellini. "Design for Reliability: The Case of Fractional-Slot Surface Permanent-Magnet Machines." Energies 12, no. 9 (2019): 1691. http://dx.doi.org/10.3390/en12091691.

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Surface permanent-magnet machines are widely used in different applications, from industrial automation to home appliance and electrical traction. Among any possible machine topology, the fractional-slot surface permanent-magnet one has gained increasing importance, because of its high torque density, low cogging torque, extended flux weakening capability and high efficiency. In addition, fractional-slot machines are attractive for tooth concentrated windings, which allow some optimized manufacturing solutions such as modular stator tooth and high slot filling factor, which result in copper vo

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17

Sun, Haiyang Y., and Kai Wang. "Space Harmonics Elimination for Fractional-Slot Windings With Two-Slot Coil Pitch." IEEE Access 7 (2019): 106961–72. http://dx.doi.org/10.1109/access.2019.2933256.

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18

Fornasiero, Emanuele, Nicola Bianchi, and Silverio Bolognani. "Slot Harmonic Impact on Rotor Losses in Fractional-Slot Permanent-Magnet Machines." IEEE Transactions on Industrial Electronics 59, no. 6 (2012): 2557–64. http://dx.doi.org/10.1109/tie.2011.2168794.

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19

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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20

Sedelnikova, V. V., A. G. Pristup, and T. V. Chestyunina. "Inductance calculation of fractional slot concentrated windings." IOP Conference Series: Earth and Environmental Science 194 (November 15, 2018): 022031. http://dx.doi.org/10.1088/1755-1315/194/2/022031.

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21

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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22

Tessarolo, Alberto, Cesare Ciriani, Mauro Bortolozzi, Mario Mezzarobba, and Nicola Barbini. "Investigation Into Multi-Layer Fractional-Slot Concentrated Windings With Unconventional Slot-Pole Combinations." IEEE Transactions on Energy Conversion 34, no. 4 (2019): 1985–96. http://dx.doi.org/10.1109/tec.2019.2929950.

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23

Zhang, De Wei, and Zhen Nan Fan. "No-Load Voltage Waveform Computation of the Different Design Schemes of Stator Slots Skewing Degree of Tubular Hydro-Generator." Advanced Materials Research 1092-1093 (March 2015): 296–99. http://dx.doi.org/10.4028/www.scientific.net/amr.1092-1093.296.

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To reduce the tubular hydro-generator no-load voltage waveform distortion,some different design schemes of stator slot skewing degree in a 36MW fractional slot tubular hydro-generator (q=11/2 ) are calculated and compared. Then, the relation of the no-load voltage waveform harmonic distortion factor (HDF) and stator slot skewing degree are revealed. The research provides the important reference informations for the optimization of no-load voltage waveform , and it is helpful for improving the industral design and manufacture standard of tubular hydro-generator.

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24

Bang, Tae-Kyoung, Kyung-Hun Shin, Jeong-In Lee, Hoon-Ki Lee, Han-Wook Cho, and Jang-Young Choi. "Experimental and Comparative Study of Rotor Vibrations of Permanent Magnet Machines with Two Different Fractional Pole/Slot Combinations." Applied Sciences 10, no. 24 (2020): 8792. http://dx.doi.org/10.3390/app10248792.

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This study deals with the noise, vibration, and harshness (NVH) characteristic analysis of permanent magnet synchronous motors (PMSMs) for electrical machines, such as electrically driven tools that are used in industries. An improved NVH design is needed for application to industrial tools. In general, the electromagnetic NVH characteristics of PMSMs are classified into electromagnetic excitation sources, such as total harmonic distortion of EMF, torque pulsation, magnetic pull force, and unbalanced magnetic force (UMF). This study compares the vibration and noise generated by fractional pole

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25

Alberti, Luigi, and Nicola Bianchi. "Theory and Design of Fractional-Slot Multilayer Windings." IEEE Transactions on Industry Applications 49, no. 2 (2013): 841–49. http://dx.doi.org/10.1109/tia.2013.2242031.

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26

Fornasiero, Emanuele, Luigi Alberti, Nicola Bianchi, and Silverio Bolognani. "Considerations on Selecting Fractional-Slot Nonoverlapped Coil Windings." IEEE Transactions on Industry Applications 49, no. 3 (2013): 1316–24. http://dx.doi.org/10.1109/tia.2013.2251853.

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27

EL‐Refaie, Ayman, and Manoj Shah. "Induction machine performance with fractional‐slot concentrated windings." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 31, no. 1 (2011): 119–39. http://dx.doi.org/10.1108/03321641211184869.

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28

Dajaku, Gurakuq, Sachar Spas, and Dieter Gerling. "Advanced optimization methods for fractional slot concentrated windings." Electrical Engineering 101, no. 1 (2019): 103–20. http://dx.doi.org/10.1007/s00202-019-00760-6.

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29

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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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

Hwang, C. C., M. H. Wu, and S. P. Cheng. "Influence of pole and slot combinations on cogging torque in fractional slot PM motors." Journal of Magnetism and Magnetic Materials 304, no. 1 (2006): e430-e432. http://dx.doi.org/10.1016/j.jmmm.2006.01.207.

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33

Vialcev, Georgy B., and Alexander F. Shevchencko. "Investigation of Synchronization Properties of PM Machines with Fractional Slot Concentrated Windings." Applied Mechanics and Materials 792 (September 2015): 73–77. http://dx.doi.org/10.4028/www.scientific.net/amm.792.73.

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The paper reports on results of studying self-starting capabilities of a commercial machine with fractional slot concentrated windings. The results are obtained by mathematical modeling techniques and experiment.

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34

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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35

Rebai, Hajer, Imen Abdennadher, and Ahmed Masmoudi. "Torque production improvement of a five phase fractional-slot PM machine under faulty operation." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 34, no. 6 (2015): 1758–70. http://dx.doi.org/10.1108/compel-06-2015-0240.

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Purpose – The purpose of this paper is to deal with several approach to recover the torque production capability of a five phase double-layer fractional-slot PM machine under faulty operation. The considered fault is an open-circuit coil in a given phase. Design/methodology/approach – In a first step, the mean futures, such as the phase back-EMFs and the electromagnetic torque, are computed by finite element analysis under healthy operation, and are taken as references. Then, they are investigated, under a faulty coil, for different approaches to recover the torque production capability. Findi

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36

Jalali, Pezhman, Samad Taghipour Boroujeni, and Javad Khoshtarash. "Expansion of the Feasible Slot/Pole Combinations in the Fractional Slot PM Machines by Applying Three-Slot Pitch Coils." IEEE Transactions on Energy Conversion 34, no. 2 (2019): 993–99. http://dx.doi.org/10.1109/tec.2018.2871889.

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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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38

Bianchi, N., and M. Dai Pre. "Use of the star of slots in designing fractional-slot single-layer synchronous motors." IEE Proceedings - Electric Power Applications 153, no. 3 (2006): 459. http://dx.doi.org/10.1049/ip-epa:20050284.

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39

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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40

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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41

Chen, Hansi, Jinghong Zhao, Yiyong Xiong, Sinian Yan, and Hao Xu. "An Improved Model for Five-Phase Induction Motor Based on Magnetic Noise Reduction Part II: Pole-Slot Scheme." Processes 10, no. 8 (2022): 1430. http://dx.doi.org/10.3390/pr10081430.

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For the reduction in the electromagnetic noise level of three-phase induction motors, many empirical rules and analytical models have been established to select the matching scheme of pole and slot, but they are not fully applicable to five-phase squirrel cage induction motors (FSCIM). In this paper, combined with the slot-number phase diagram (SNPD), and the electromagnetic force-vibration-acoustic analytical model deduced in Part I, the influence of pole-slot schemes, including five-phase regular-size phase-belt and fractional-slot winding, on magnetic noise is analyzed. The feasibility of e

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42

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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Wang, K., Z. Q. Zhu, Grzegorz Ombach, M. Koch, Sunny Zhang, and J. Xu. "Electromagnetic Performance of an 18-Slot/10-Pole Fractional-Slot Surface-Mounted Permanent-Magnet Machine." IEEE Transactions on Industry Applications 50, no. 6 (2014): 3685–96. http://dx.doi.org/10.1109/tia.2014.2316362.

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Liu, Yue, Zi-Qiang Zhu, Chengwei Gan, Simon Brockway, and Chris Hilton. "Comparison of optimal slot/pole number combinations in fractional slot permanent magnet synchronous machines having similar slot and pole numbers." Journal of Engineering 2019, no. 17 (2019): 4585–89. http://dx.doi.org/10.1049/joe.2018.8202.

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Faggion, Adriano, Emanuele Fornasiero, Nicola Bianchi, and Silverio Bolognani. "Sensorless Capability of Fractional-Slot Surface-Mounted PM Motors." IEEE Transactions on Industry Applications 49, no. 3 (2013): 1325–32. http://dx.doi.org/10.1109/tia.2013.2253436.

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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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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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Bianchi, N., and S. Bolognani. "Fractional-slot PM motors for electric power steering systems." International Journal of Vehicle Autonomous Systems 2, no. 3/4 (2004): 189. http://dx.doi.org/10.1504/ijvas.2004.006095.

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Lee, Young-Keun, Tae-Kyoung Bang, Seong-Tae Jo, et al. "A study on the shaft stability and prediction of electromagnetic and NVH characteristics of permanent magnet synchronous machine according to the different pole/slot combination." AIP Advances 13, no. 2 (2023): 025121. http://dx.doi.org/10.1063/9.0000447.

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In this study, electromagnetic noise sources of permanent magnet synchronous motors with 8-pole 9-slot and 12-slot fractional slot concentrated windings were analyzed through finite element analysis, and the radiated noise/vibration levels were compared through structural-acoustic analysis. In addition, the stability of the rotational shaft generated vibration was analyzed. Electromagnetic noise sources are classified into cogging torque, torque ripple, and unbalanced magnetic force. The effect of electromagnetic noise sources on vibration/noise was analyzed in the frequency domain through the

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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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