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Academic literature on the topic 'Fractional Slot winding SyR'

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Published: 14 March 2023

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Journal articles on the topic "Fractional Slot winding SyR"

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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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 slot design.
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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

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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6

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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7

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 (April 2016): 231–39. http://dx.doi.org/10.1049/iet-epa.2015.0092.

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8

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 (October 13, 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 physical model of the machine to evaluate the slot-related thermal properties of the slot and the whole machine. The measurement is compared with the finite element analysis (FEA) and the equivalent slot thermal conductivity and heat transfer coefficients of the stator and rotor are obtained.
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9

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 (December 1, 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 is significant reduction of torque ripple in 12-slot/10-pole mahine equipped with single layer winding than one equipped with double layer winding machine. It si confirmed that an optimum torque performance is desirable via stator iron modification in PM machines.
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10

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 (May 2017): 2059–65. http://dx.doi.org/10.1109/tia.2017.2672518.

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Dissertations / Theses on the topic "Fractional Slot winding SyR"

1

Fei, Wei-Zhong. "Permanent magnet synchronous machines with fractional slot and concentrated winding configurations." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/6150.

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The permanent magnet synchronous machines with fractional slot and concentrated winding configuration have been steadily gaining traction in various applications in recent times. This is mainly driven by several advantages offered by this configuration such as high-torque density, outstanding efficiency, and easy and low-cost fabrication. The main focus of this thesis is dedicated to the investigation of three main topologies of fractional-slot and concentratedwinding permanent magnet synchronous machines specifically suited for particular applications. Additionally, the cogging torque and torque ripple reduction technique based on a novel axial pole pairing scheme in two different radial-flux permanent magnet synchronous machines with fractional-slot and concentratedwinding configuration are investigated. First, an axial flux permanent magnet segmented-armature-torus machine with laminated stator is proposed for in-wheel direct drive application. Both simplified analytical method and three-dimensional finite element analysis model accounting for anisotropic property of lamination are developed to analyze the machine performance. The predicted and experimental results are in good agreement and indicate that the proposed machine could deliver exciting and excellent performance. The impact of magnet segmentation on magnet eddy current losses in the prototype is carried out by the proposed three-dimensional finite element analysis model. The results show that the eddy current losses in the magnet could be effectively reduced by either circumferentially or radially segmenting the magnets. Furthermore, a magnet shaping scheme is employed and investigated to reduce the cogging torque and torque ripple of the prototype. This is validated using the three-dimensional finite element analysis model as well. Second, a coreless axial flux permanent magnet machine with circular magnets and coils is proposed as a generator for man-portable power platform. Approximate analytical and three-dimensional finite element analysis models are developed to analyze and optimize the electromagnetic performance of the machine. Comprehensive mechanical stress analysis has been carried out by threedimensional structural finite element analysis, which would ensure the rotor integrity at expected high rotational speed. The results from both three-dimensional finite element analysis and experiments have validated that the proposed prototype is a compact and efficient high speed generator with very simple and robust structure. Additionally, this structure offers simplified assembly and manufacturing processes utilizing off-the-shelf magnets. Third, a novel radial flux outer rotor permanent magnet flux switching machine is proposed for urban electric vehicle propulsion. Initial design based on the analytical sizing equations would lead to severe saturation and excessive magnet volumes in the machine and subsequently poor efficiency. An improved design is accomplished by optimizing the geometric parameters, which can significantly improve the machine efficiency and effectively reduce the overall magnet volumes. Magnet segmentations can be employed to further improve the machine performance. Finally, a novel axial pole pairing technique is proposed to reduce the cogging torque and torque ripple in radial flux fractional-slot and concentrated-winding permanent magnet synchronous machines. The implementation of the technique in outer rotor surface mounted permanent magnet synchronous machine shows that the cogging torque and torque ripple can be reduced very effectively with different magnet pairs. However, careful pair selection is of particular importance for compromise between cogging torque and torque ripple minimizations during the machine design stage. This technique is also employed to minimize the cogging torque in a permanent magnet flux switching integrated-stator-generator and it is compared with rotor step skewed technique. The estimated and experimental results show that the axial pole pairing technique can not mitigate the torque ripple of the machine as effectively as rotor step skewed approach although both the techniques could reduce the cogging torque to the same level.
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2

Kouevidjin, Modobozi. "Evaluation des performances énergétiques d'une nouvelle génération d'éolienne off-shore." Thesis, Artois, 2015. http://www.theses.fr/2015ARTO0208/document.

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L’alternateur étudié dans cette thèse équipe une éolienne flottante à axe vertical. Il s’agit d’unemachine synchrone de 2MW, polyphasée, bobinée sur plots, à pas fractionnaire, à aimants et à prisedirecte. L’objectif majeur de la thèse est la caractérisation de cet alternateur afin d’en évaluer lesperformances. Une modélisation analytique de la perméance d'entrefer et de la force magnétomotriceont conduit à l'étude de l'induction d'entrefer dont le contenu harmonique s'est révélé êtreparticulièrement riche. La caractérisation a également porté sur la détermination des inductancespropres et mutuelles, avec un calage du modèle effectué en exploitant des mesures expérimentalesfaites à l’arrêt. La particularité de la machine étudiée nous a amené à considérer un enroulement fictiféquivalent dans le but de déterminer les inductances cycliques, nécessaires à l'établissement du schémamonophasé équivalent. De plus, le fonctionnement back to back de la machine a été étudié et simulé. Ilpermet de faire des tests de la machine elle-même mais aussi des éléments de la chaîne de conversion,sans l'utilisation d'une deuxième machine ou des pâles pour entraîner le rotor du prototype. Il offre enplus la possibilité de tester différents type de fonctionnements et d'évaluer la puissance que peutproduire la machine : différents scénario de fonctionnement ont été simulés et les paramètresnécessaires aux essais sur site ont été définis. Le fonctionnement back to back a fait l’objetd’investigation sur une machine synchrone classique. Les difficultés de fonctionnement ontnotamment pu être mises en évidence avec une modélisation analytique des phénomènesélectromagnétique qui s'y produisent et des essais expérimentaux
The studied alternator equips a vertical axis offshore wind turbine. It is a 2MW fractional slotconcentrated winding permanent magnet synchronous polyphase machine, directly connected to bladeturbine. The principal purpose of this thesis consists in characterizing the alternator in order toevaluate its performances. The air gap permeance and the magnemotive force analytical modelingleads to study the air gap flux density and its harmonic content, which is particularly rich. Thecharacterization has also concerned the self and mutual inductance determination, which has requiredstalling the model by exploiting experimental measurements done at standstill. The particularity of thestudied machine leads us to consider an equivalent fictitious winding in order to determine the cyclicalinductances, necessary for the single-phase equivalent scheme establishment. Moreover, the machineback to back functioning has been studied and simulated. This functioning allows testing the machineitself and the other conversion chain subsystems, without using a second machine or blades to drivethe prototype rotor. It offers the possibility to test different types of operating points and to estimatethe power that can produce the studied machine: different operating points scenarios have beensimulated and parameters for tests have been defined. The back to back functioning of a classicalsynchronous machine has been also investigated, with an analytical modeling of the electromagneticphenomena and experimental tests
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Dai, Pre Michele. "Analysis and design of Fault-Tolerant drives." Doctoral thesis, Università degli studi di Padova, 2008. http://hdl.handle.net/11577/3425500.

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The field of fault-tolerant applications is surely among the most exciting and potentially innovative modern research of the electrical motor where the design is freedom and new solution can be explored. The cost of the permanent magnets and the drives allow to develop new solution, in particular surface mounted permanent magnet machine with fractional-slot winding and reluctance motor assisted from the permanent magnet. The reliability of these machines allows to apply these motors into critical applications where the electrical or mechanical redundancy are required. As regard this argument the literature compare the performance of different solution. In this thesis I have applied a different approach, in particular a mathematical model is combined with the finite element method. This approach allows to use the Fexibility of the analytical model and the precision of the finite element method. The larger part of my research activity has regarded the motors with fractiona-slot winding and the multi-phase machines. The final part of my thesis tells the activity developed during the period spent in ABB Corporate Research Sweden. The aim of my research was to design several solution of electric generators for wave energy, in particular the aim was to design the optimal system that is a compromise among the different component: generator, mechanical converter, inverter, etc..
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Aslan, Bassel. "Conception de Machines Polyphasées à Aimants et Bobinage Concentré à Pas Fractionnaire avec Large Plage de Vitesse." Thesis, Paris, ENSAM, 2013. http://www.theses.fr/2013ENAM0039/document.

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L'objectif de la thèse est la conception d'une machine électrique dédiée à des applications Mild-Hybrid. En assurant certaines fonctionnalités, cette machine permet de réduire la consommation de carburant dans le véhicule et par conséquent réduire la quantité des gaz rejetés. Les contraintes exigées par un tel domaine à la fois pour le couple et la puissance nous amène à étudier les machines synchrone polyphasée à aimants avec un bobinage concentré autour des dents. Cette technologie de bobinage permet d'obtenir des machines de rendement élevé qui sont faciles à fabriquer, réparer et recycler, mais avec un certain niveau d'effets parasites. Afin de trouver un compromis entre ces effets et la capacité à fournir de couple, la thèse concerne l'étude des topologies de bobinage à pas dentaire avec différentes combinaisons Encoches/Pôles. Un modèle analytique constituant un outil permettant de comparer les pertes d'aimants entre les différentes combinaisons est développé. De nombreuses configurations sont comparées afin de faire le choix le plus adéquat pour minimiser les effets parasites. Les topologies rotoriques qui permettent à la machine de présenter une large plage de vitesse sont examinées, mais en tenant compte également de la nécessité de protéger leurs aimants contre des harmoniques nocifs de FMM. Enfin, l'exploitation du degré de liberté offert par une structure à 5 phases est abordée montrant que, le couple peut être significativement boosté en modifiant la structure de rotor. La cohérence de toutes les études analytiques menées dans la thèse est corroborée par des modèles en éléments finis et des mesures effectuées sur un prototype
The aim of this thesis is to design an electrical machine dedicated for Mild-Hybrid applications. By providing certain functionalities, this machine can reduce fuel consumption in the vehicle and therefore reduce the amount of released gases. The challenges imposed by such application on both torque and power lead us to study the multiphase PM machines with concentrated windings. This windings technology provides efficient machines which are easy to manufacture, repair and recycle, but accompanied with a certain level of parasitic effects. In order to find a compromise between these effects and the ability to provide torque, the thesis concerns the study of winding topologies with different Slots/Poles combinations. An analytical model constituting a tool to compare magnet losses between various combinations is developed. Many configurations are compared in order to make the most appropriate choice which minimizes parasitic effects. The rotor topologies that allow the machine to provide a wide speed range are examined, taking into account their role in magnets protection against MMF harmful harmonics. Finally, the exploitation of freedom degree offered by a 5-phases structure is discussed, showing that the torque can be significantly boosted by modifying the rotor structure. The consistency of all analytical studies presented in the thesis is corroborated by finite element models and a prototype measurement
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Le, Luong Huong Thao. "Optimal Design of Modular High Performance Brushless Wound Rotor Synchronous Machine for embedded systems." Thesis, Toulouse, INPT, 2018. http://www.theses.fr/2018INPT0111/document.

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Cette thèse est dédiée à la conception optimale de la machine synchrone à rotor bobiné modulaire sans balais pour les systèmes embarqués. Cette machine est basée sur une structure POKIPOKITM développée par Mitsubishi Electric Coopération avec les convertisseurs de puissance intégrée pour augmenter la capacité de tolérance aux défauts. L'analyse électromagnétique est utilisée pour étudier les différentes machines synchrones à rotor bobiné et donc, pour sélectionner la structure qui offre la meilleure tolérance aux défauts et les performances les plus élevées. D’abord, le choix des nombres de phases, d’encoches et de pôles est un point critique. Ensuite, quelques machines sont analysées et comparées selon les critères tels que la densité de couple, le rendement, l'ondulation de couple. La machine avec 7 phases, 7 encoches et 6 pôles est alors choisie. Cette machine est ensuite comparée à la machine synchrone à aimant permanent monté en surface. Le résultat démontre que la machine synchrone à rotor bobiné modulaire sans balais possède le potentiel de remplacer la machine synchrone à aimant permanent dans notre application parce qu’elle présente des performances similaires avec une capacité de tolérance aux défauts élevée. Dans un second temps, une fois la structure 7phases/7encoches/6pôles choisie, cette machine est optimisée en utilisant NOMAD (qui est un logiciel d'optimisation de boîte noire) afin de minimiser le volume externe sous les contraintes électromagnétiques, thermiques et mécaniques. Comme ce problème d'optimisation est extrêmement difficile à résoudre, quelques relaxations ont été effectuées pour tester les différents algorithmes d'optimisation : fmincon (de Matlab) et NOMAD. Nous remarquons que NOMAD est plus efficace que fmincon pour trouver des solutions à ce problème de conception où certaines contraintes sont calculées par des simulations numériques (ANSYS Maxwell ; code éléments finis). En utilisant la méthode NOMAD basée sur l’algorithme Mesh Adaptive Direct Search, nous obtenons des résultats optimaux qui satisfont toutes les contraintes proposées. Il est nécessaire de valider ce design optimisé en vérifiant toutes les contraintes par des simulations électromagnétiques et thermiques en 3D. Les résultats montrent que le couple moyen obtenu par la simulation en 3D est inférieur à la valeur souhaitée. Par conséquent, en augmentant la longueur de la machine, une nouvelle machine corrigée est ainsi obtenue. Nous observons que les pertes de fer obtenues en 3D sont plus élevées qu'en 2D en raison du flux de fuite dans la tête de bobinage. En prenant les valeurs des pertes analysées par la simulation en 3D, la température de surface de la nouvelle machine analysée par la méthode Computational Fluid Dynamics est plus élevée que celle calculée dans l’optimisation. Enfin, un prototype de machine est construit et quelques tests expérimentaux est réalisés. Le résultat montre que la force électromotrice à vide a une forme d'onde similaire par rapport à la prédiction numérique en 3D et la différence de couple statique maximum entre les tests expérimentaux et les simulations par éléments finis en 3D est faible
This thesis is dedicated to the design and the optimization of modular brushless wound rotor synchronous machine for embedded systems. This machine is constructed based on POKIPOKITM structure with integrated drive electronics. Finite element analysis based optimization becomes more popular in the field of electrical machine design because analytical equations are not easily formalized for the machines which have complicate structures. Using electromagnetic analysis to comparatively study different modular brushless wound rotor synchronous machines and therefore, to select the structure which offers the best fault tolerant capability and the highest output performances. Firstly, the fundamental winding factor calculated by using the method based on voltage phasors is considered as a significant criterion in order to select the numbers of phases, stator slots and poles. After that, 2D finite element numerical simulations are carried out for a set of 15 machines to analyze their performances. The simulation results are then compared to find an appropriate machine according to torque density, torque ripple and machine efficiency. The 7phase/7-slot/6-pole machine is chosen and compared with a reference design surfacemounted permanent magnet synchronous machine in order to evaluate the interesting performance features of the wound rotor synchronous machine. In the second design stage, this machine is optimized by using derivative-free optimization. The objective is to minimize external volume under electromagnetic, thermal and mechanical constraints. Given that an accurate finite element analysis for machine performance takes a long time. Moreover, considering that the average torque can be obtained by simulating the model with only four rotor positions instead of one electric period, optimization strategy is proposed to reduce computational time and therefore, obtain a fast convergence ability by defining relaxed problems which enable minimizing the external volume of the machine under only several constraints such as average torque, torque ripple and copper losses. By testing relaxed problems, two different optimization methods (NOMAD and fmincon) are compared in order to select an appropriate method for our optimization problem. Using NOMAD method based on Mesh Adaptive Direct Search, we achieve optimal results which satisfy all of the constraints proposed. In the third design stage, all constraints are validated by 3D electromagnetic and thermal simulations using finite element and computational fluid dynamics methods. The 3D results show that the average torque obtained is lower than the desired value. By increasing the length of the machine, a new corrected machine is thus obtained. It can be observed that the iron losses obtained in 3D are higher than that in 2D due to the leakage flux in the end-winding. Then, the machine temperature is analyzed by using ANSYS Fluent. Note that the surface temperature is higher than that calculated in the optimization and the coil temperature is 8.48°C higher than the desired value (105°C). However, some dissipation by the shaft and the bearings of the machine are expected to reduce the machine temperature. Finally, a machine prototype is built and some experimental tests are carried out. The results show that the electromotive force has a similar waveform compared to 3D prediction and the difference of the measured and predicted maximum static torques is small
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6

Fei, W.-Z. "Permanent magnet synchronous machines with fractional slot and concentrated winding configurations." Thesis, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/6150.

Full text
Abstract:
The permanent magnet synchronous machines with fractional slot and concentrated winding configuration have been steadily gaining traction in various applications in recent times. This is mainly driven by several advantages offered by this configuration such as high-torque density, outstanding efficiency, and easy and low-cost fabrication. The main focus of this thesis is dedicated to the investigation of three main topologies of fractional-slot and concentratedwinding permanent magnet synchronous machines specifically suited for particular applications. Additionally, the cogging torque and torque ripple reduction technique based on a novel axial pole pairing scheme in two different radial-flux permanent magnet synchronous machines with fractional-slot and concentratedwinding configuration are investigated. First, an axial flux permanent magnet segmented-armature-torus machine with laminated stator is proposed for in-wheel direct drive application. Both simplified analytical method and three-dimensional finite element analysis model accounting for anisotropic property of lamination are developed to analyze the machine performance. The predicted and experimental results are in good agreement and indicate that the proposed machine could deliver exciting and excellent performance. The impact of magnet segmentation on magnet eddy current losses in the prototype is carried out by the proposed three-dimensional finite element analysis model. The results show that the eddy current losses in the magnet could be effectively reduced by either circumferentially or radially segmenting the magnets. Furthermore, a magnet shaping scheme is employed and investigated to reduce the cogging torque and torque ripple of the prototype. This is validated using the three-dimensional finite element analysis model as well. Second, a coreless axial flux permanent magnet machine with circular magnets and coils is proposed as a generator for man-portable power platform. Approximate analytical and three-dimensional finite element analysis models are developed to analyze and optimize the electromagnetic performance of the machine. Comprehensive mechanical stress analysis has been carried out by threedimensional structural finite element analysis, which would ensure the rotor integrity at expected high rotational speed. The results from both three-dimensional finite element analysis and experiments have validated that the proposed prototype is a compact and efficient high speed generator with very simple and robust structure. Additionally, this structure offers simplified assembly and manufacturing processes utilizing off-the-shelf magnets. Third, a novel radial flux outer rotor permanent magnet flux switching machine is proposed for urban electric vehicle propulsion. Initial design based on the analytical sizing equations would lead to severe saturation and excessive magnet volumes in the machine and subsequently poor efficiency. An improved design is accomplished by optimizing the geometric parameters, which can significantly improve the machine efficiency and effectively reduce the overall magnet volumes. Magnet segmentations can be employed to further improve the machine performance. Finally, a novel axial pole pairing technique is proposed to reduce the cogging torque and torque ripple in radial flux fractional-slot and concentrated-winding permanent magnet synchronous machines. The implementation of the technique in outer rotor surface mounted permanent magnet synchronous machine shows that the cogging torque and torque ripple can be reduced very effectively with different magnet pairs. However, careful pair selection is of particular importance for compromise between cogging torque and torque ripple minimizations during the machine design stage. This technique is also employed to minimize the cogging torque in a permanent magnet flux switching integrated-stator-generator and it is compared with rotor step skewed technique. The estimated and experimental results show that the axial pole pairing technique can not mitigate the torque ripple of the machine as effectively as rotor step skewed approach although both the techniques could reduce the cogging torque to the same level.
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7

Harke, Markus. "Bruchlochwicklungen mit einem Wickelschritt von zwei Nuten." 2021. https://tubaf.qucosa.de/id/qucosa%3A76004.

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Der Beitrag stellt Zweischicht-Bruchlochwicklungen mit einem Wickelschritt von zwei Nuten als einen m¨oglichen Kompromiss vor, welcher weniger ohmsche Verluste als bei klassischen verteilten Wicklungen und weniger Ummagnetisierungsverluste als bei Zahnspulenwicklungen ermöglicht. Er diskutiert Entwurf und Eigenschaften solcher Wicklungen f¨ur drei- und sechssträngige Synchronmaschinen anhand ausgewählter Beispiele.
This paper presents two layer fractional slot windings with a winding step of two slots as a possible compromise which enables less ohmic loss than classic distributed windings would have and less hysteresis and eddy loss than fractional slot concentrated windings would have. It discusses properties and design of such windings for three- and six-phase synchronous machines based on selected examples.
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Book chapters on the topic "Fractional Slot winding SyR"

1

Farshadnia, Mohammad. "Design of Optimal Winding Layouts for Multiphase Fractional-Slot Concentrated-Wound Permanent Magnet Machines." In Springer Theses, 61–94. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8708-0_3.

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2

Xuanfeng, Shangguan, Zhang Jiaolong, and Zhang Wenli. "Calculation of Winding Factor and Analysis of Armature MMF of a PMSM with Fractional-Slot and 5-Phase Winding." In Electrical, Information Engineering and Mechatronics 2011, 2039–46. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2467-2_241.

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3

Qi, Ge, Ding Ma, Libing Zhou, and Li Shi. "Analysis of Dual Three-Phase Fractional-Slot PM Brushless AC Motor with Alternate Winding Connections." In Lecture Notes in Electrical Engineering, 793–800. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21747-0_102.

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Zha, Chencheng, Bo Wang, and Wenhan Xu. "Electromagnetic Thermal Coupled Analysis of a Multiple Three-Phase Fractional Slot Concentrated Winding Fault-Tolerant Motor." In Lecture Notes in Electrical Engineering, 68–79. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0553-9_9.

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EL-Refaie, Ayman M. "Fractional-slot concentrated winding machines and drives." In Modeling, Simulation and Control of Electrical Drives, 637–95. Institution of Engineering and Technology, 2019. http://dx.doi.org/10.1049/pbce118e_ch17.

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Conference papers on the topic "Fractional Slot winding SyR"

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Krall, Rudolf, Johann Krenn, and Andreas Schmid. "Fractional slot winding versus distributed winding using winding function method." In 2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM). IEEE, 2014. http://dx.doi.org/10.1109/optim.2014.6850900.

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Krall, Rudolf, Johann Krenn, and Andreas Schmid. "Comparison of leakage inductance between fractional slot winding and distributed winding." In 2014 16th International Power Electronics and Motion Control Conference (PEMC). IEEE, 2014. http://dx.doi.org/10.1109/epepemc.2014.6980505.

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Jing Rao, Ronghai Qu, and Yuting Gao. "Un-even winding turns in fractional-slot concentrated-winding PM machines." In 2013 International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2013. http://dx.doi.org/10.1109/icems.2013.6754382.

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Boglietti, Aldo, Marco Cossale, Silvio Vaschetto, and Thiago Dutra. "Thermal conductivity evaluation of fractional-slot concentrated winding machines." In 2016 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2016. http://dx.doi.org/10.1109/ecce.2016.7855511.

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Schumann, Christian, Tobias Muller, Edgar Stein, and Mario Pacas. "Axial-flux-machine with an ironless fractional slot winding." In IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2014. http://dx.doi.org/10.1109/iecon.2014.7048535.

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Munteanu, Adrian, Bogdan Virlan, Leonard Livadaru, and Alecsandru Simion. "Five phase permanent magnet synchronous generator distributed winding to fractional slot concentrated winding." In 2017 International Conference on Electromechanical and Power Systems (SIELMEN). IEEE, 2017. http://dx.doi.org/10.1109/sielmen.2017.8123316.

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Boglietti, Aldo, Marco Cossale, Silvio Vaschetto, and Thiago Dutra. "Thermal parameters evaluation for stator fractional-slot concentrated winding machines." In 2016 IEEE 25th International Symposium on Industrial Electronics (ISIE). IEEE, 2016. http://dx.doi.org/10.1109/isie.2016.7744894.

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Jussila, H., P. Salminen, M. Niemela, and J. Pyrhonen. "Guidelines for Designing Concentrated Winding Fractional Slot Permanent Magnet Machines." In 2007 International Conference on Power Engineering, Energy and Electrical Drives. IEEE, 2007. http://dx.doi.org/10.1109/powereng.2007.4380186.

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Huilin Kang, Libing Zhou, and Jin Wang. "Harmonic winding factors and MMF analysis for five-phase fractional-slot concentrated winding PMSM." In 2013 International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2013. http://dx.doi.org/10.1109/icems.2013.6713375.

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Miyamoto, Yasuhiro, Tsuyoshi Higuchi, Takashi Abe, and Yuichi Yokoi. "Fractional slot winding design method of Permanent-Magnet Synchronous Machines using Slot Star Diagram." In 2013 International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2013. http://dx.doi.org/10.1109/icems.2013.6713354.

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You might also be interested in the extended bibliographies on the topic 'Fractional Slot winding SyR' for particular source types:
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