Relevant bibliographies by topics / Axial flux machine cores

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Axial flux machine cores'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Axial flux machine cores"

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Hewitt, A. J., A. Ahfock, and S. A. Suslov. "Magnetic flux density distribution in axial flux machine cores." IEE Proceedings - Electric Power Applications 152, no. 2 (2005): 292. http://dx.doi.org/10.1049/ip-epa:20055039.

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Ahfock, A., and A. J. Hewitt. "Curvature-related eddy-current losses in laminated axial flux machine cores." IEE Proceedings - Electric Power Applications 152, no. 5 (2005): 1350. http://dx.doi.org/10.1049/ip-epa:20045280.

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Liu, Chengcheng, Xue Li, Gang Lei, et al. "Performance Evaluation of an Axial Flux Claw Pole Machine With Soft Magnetic Composite Cores." IEEE Transactions on Applied Superconductivity 28, no. 3 (2018): 1–5. http://dx.doi.org/10.1109/tasc.2017.2777927.

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Liu, Chengcheng, Youhua Wang, Gang Lei, Youguang Guo, and Jianguo Zhu. "Performance analysis of a new radial-axial flux machine with SMC cores and ferrite magnets." AIP Advances 7, no. 5 (2016): 056603. http://dx.doi.org/10.1063/1.4973206.

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Wang, Youhua, Jiawei Lu, Chengcheng Liu, Gang Lei, Youguang Guo, and Jianguo Zhu. "Development of a High-Performance Axial Flux PM Machine With SMC Cores for Electric Vehicle Application." IEEE Transactions on Magnetics 55, no. 7 (2019): 1–4. http://dx.doi.org/10.1109/tmag.2019.2914493.

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Marignetti, Fabrizio, Vincenzo Delli Colli, and Silvio Carbone. "Comparison of Axial Flux PM Synchronous Machines With Different Rotor Back Cores." IEEE Transactions on Magnetics 46, no. 2 (2010): 598–601. http://dx.doi.org/10.1109/tmag.2009.2034021.

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Gołębiowski, Lesław, Marek Gołębiowski, Damian Mazur, and Andrzej Smoleń. "Analysis of axial flux permanent magnet generator." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 38, no. 4 (2019): 1177–89. http://dx.doi.org/10.1108/compel-10-2018-0415.

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Purpose The purpose of this paper is to compare the methods of calculating the parameters of air-cored stator flux permanent magnet generator and to compare these results with the measurements of the designed and manufactured generator. The generator is to be designed for operation in a wind power plant. Design/methodology/approach An analytical method and 2D and 3D finite element methods (FEMs) were used to calculate the parameters of the coreless permanent magnet axial generator. The analytical method and 2D FEM were applied to individual cross-sections through the air gap of the machine. After the design and construction of the generator and measuring station, the results of calculations and measurements were compared. Findings The results of investigated calculation methods and measurements were found to be mutually compatible. Analytical methods and 2D FEM required proper interpretation of the results when comparing them with the 3D FEM. The results of the measurements and calculations showed the usefulness of the generator for operation in a wind power plant. Originality/value Full comparison of results of 2D and 3D calculations with the results of the measurements on the machine model confirmed the usefulness of fast 2D methods for the analysis of coreless generators. The results differed by the effects of leakage inductance of windings’ front connections. The application of an axial generator designed with the described methods in a wind turbine showed its proper operation.
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Liu, Chengcheng, Kelin Wang, Shaopeng Wang, Feng Niu, and Youhua Wang. "Analysis and design optimization of a low-cost axial flux Vernier machine with SMC cores and ferrite magnets." Electrical Engineering 102, no. 4 (2020): 2595–604. http://dx.doi.org/10.1007/s00202-020-01055-x.

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Cao, Yong Juan, Yun Kai Huang, and Long Jin. "Research on Axial Magnetic Force and Rotor Mechanical Stress of an Air-Cored Axial-Flux Permanent Magnet Machine Based on 3D FEM." Applied Mechanics and Materials 105-107 (September 2011): 160–63. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.160.

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Due to its compact construction and high power density, the axial-flux permanent-magnet (AFPM) machine with coreless stator has obtained more and more attention and interest from researchers. For an AFPM machine with coreless stator, the axial magnetic attraction force may cause the rotors’ deflection and affect the machine’s reliability. In this paper, the magnetic field and the rotor mechanical strength of a coreless stator AFPM machine are studied. Finite-element method and analytic method are both used to calculate the axial attraction magnetic force between the two rotor discs. Structure finite-element analysis is used to simulate the maximum stress and deflection due to the axial magnetic force. The research is very significant to the power density elevation of the AFPM machine.
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Baghayipour, Mohammadreza, Ahmad Darabi, and Ali Dastfan. "An analytical model of harmonic content no-load magnetic fields and Back EMF in axial flux PM machines regarding the iron saturation and winding distribution." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 1 (2018): 54–76. http://dx.doi.org/10.1108/compel-01-2017-0003.

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Purpose This paper aims to propose an analytical model for the harmonic content no-load magnetic fields and Back electric motive force (EMF) in double-sided TORUS-type non-slotted axial flux permanent magnet (TORUS-NS AFPM) machines with surface-mounted magnets considering the winding distribution and iron saturation effects. Design/methodology/approach First, a procedure to calculate the winding distribution with a rectangular cross-section is proposed. The magnetic field distribution and magnetic motive force (MMF) drop due to saturation in iron cores are then exactly extracted in a 2-D analytical model. The consequent influence on air-gap magnetic field and Back EMF are also calculated using a new iterative algorithm. The results are compared with those of the conventional analytical model without saturation, 2-D finite element analysis (FEA) and an experiment on a fabricated prototype machine. Findings Unlike the conventional method, the new method yields the no-load magnetic field distributions in air-gap and iron cores and Back EMF very exactly such that the results well match to those of the FEA and experiment. Originality/value Unlike the conventional winding factor, the winding distribution is considered here along the both axial and circumferential directions, which improves the accuracy level of results for non-slotted structures with relatively large air-gaps. The magnetic field distribution and MMF drop-in iron parts are also calculated as the basis for exact recalculation of air-gap magnetic field and Back EMF. Because of small computational burden beside superior accuracy, the proposed model can be treated as an accurate and fast substitute for FEA to be used during the design procedure or for predicting the other performance characteristics of TORUS-NS AFPM machines.
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Dissertations / Theses on the topic "Axial flux machine cores"

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Hewitt, Andrew. "The effects of curvature on axial flux machine cores." University of Southern Queensland, Faculty of Engineering and Surveying, 2005. http://eprints.usq.edu.au/archive/00001437/.

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This work is an investigation into the curvature related potential for flux to flow in the radial direction in the back-iron of laminated axial flux machine cores. Analytical and numerical models are presented. Analysis based on these models has shown that, in practical axial flux machines, the radial component of the flux density can be neglected with respect to the flux density distribution in the core back-iron. It has also been found that if the core permeability, core conductivity and number of poles are sufficiently high then power loss due to curvature related cross-lamination flux is negligible compared to normal eddy current losses. A closed form expression to predict losses due to curvature related radial flux is also presented. This expression allows axial flux machine designers to make quick assessment of the need to consider these losses when designing axial flux machines.
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Zagheli, Hossein Rahmatizadeh. "Flux and loss distribution in machine stator cores." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316343.

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Hines, Derek Braden. "Evaluation of A Novel Axial Flux Variable Reluctance Machine." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/752.

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The objective of this thesis is to determine the feasibility of a novel axial flux variable reluctance machine design. The design aims to compete with prevalent rare-earth permanent magnet machines while also implementing an innovative torque ripple minimization strategy. Given the fundamental operating principles, a selection of dimensions, materials, and excitations are prepared for the machine. Special attention is given to the rotor profile which is crucial to operation. Finite element analysis software is used to evaluate a three-dimensional model in terms of inductance and torque. The ultimate potential of the machine is discussed and recommendations for improvement are proposed.
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Colle, Alexandre. "Étude d’une machine supraconductrice à flux axial pour une application aéronautique." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0036.

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Le monde s’électrifie et plus particulièrement le monde du transport. En cause le réchauffement climatique et la pollution atmosphérique, qui promeut l’énergie électrique comme solution de la transition énergétique. L’électricité est de plus en plus un facteur de décarbonation avec les énergies renouvelables. De plus, l’utilisation de cette énergie est efficace. Le rendement des moteurs électriques peut être supérieur à 90 % contre 30 % pour les moteurs thermiques. Si la possibilité de transporter un grand nombre de passager au sol avec l’énergie électrique est une réalité, il en est autrement dans les airs. Mais le changement est en marche grâce à des projets comme le Solar Impulse, le célèbre avion solaire ayant fait le tour du monde en plusieurs étapes. Ces projets montrent que la technologie est quasiment prête. Le souci d’amélioration pour l’industrie de l’aéronautique concerne la masse des équipements. Pour un avion tout électrique le stockage de l’électricité et les convertisseurs électromécaniques doivent être plus performants que les technologies actuelles. Le stockage électrique est un des enjeux clés de la transition énergétique. Les solutions sont diverses et peuvent être mécanique (volant d’inertie), électrochimique (pile à combustible, batteries), électromagnétique (bobines supraconductrices, supercapacités) ou encore thermique (chaleur latente). La production ou la motorisation électrique est le second aspect de la transition. Les moteurs électriques à aimants permanents possèdent à l’heure actuelle le meilleur ratio puissance/poids, appelé aussi puissance massique. Mais cela est encore insuffisant, c’est la raison pour laquelle des technologies de ruptures sont étudiées comme l’utilisation de matériaux supraconducteurs. L’objectif de cette thèse consiste à étudier les matériaux supraconducteurs qui ont la particularité de n’avoir aucune perte quand un courant électrique les traverse. On y voit donc rapidement un avantage concernant leur intégration dans les machines électriques. Ils permettent d’augmenter le champ magnétique dans l’entrefer d’une machine électrique et d’en réduire le volume et la masse. Il s’agit d’une thématique de recherche importante du laboratoire GREEN de l’Université de Lorraine à Nancy avec lequel cette thèse s’est déroulée<br>The world is electrifying, especially the world of transport. Global warming and air pollution are the cause, which promotes electric power as a solution to the energy transition. Electricity is more and more a factor of decarbonation with renewable energies. Moreover, the use of this energy is efficient. The efficiency of electric motors can be more than 90% compared to 30% for internal combustion engines. If the possibility of transporting a large number of passengers on the ground with electric energy is a reality, it is different in the air. But change is on the way thanks to projects such as Solar Impulse, the famous solar airplane that has circumnavigated the world in several stages. These projects show that the technology is almost ready. The concern for improvement in the aeronautics industry concerns the mass of equipment. For an all-electric aircraft, the storage of electricity and the electromechanical converters must be more efficient than current technologies. Electrical storage is one of the key issues in the energy transition. The solutions are diverse and can be mechanical (flywheel), electrochemical (fuel cell, batteries), electromagnetic (superconducting coils, supercapacitors) or thermal (latent heat). Electric power generation or motorization is the second aspect of the transition. Permanent magnet electric motors currently have the best power-to-weight ratio, also known as power-to-weight. But this is still insufficient, which is why breakthrough technologies are being studied, such as the use of superconducting materials. The objective of this thesis is to study superconducting materials which have the particularity of having no loss when an electric current flow through them. We can therefore quickly see an advantage concerning their integration in electrical machines. They make it possible to increase the magnetic field in the air gap of an electrical machine and to reduce its volume and mass. This is an important research topic of the GREEN laboratory of the University of Lorraine in Nancy with which this thesis was carried out
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Scowby, Seath. "Thermal management of an axial flux permanent magnet machine considering heat pipes." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53676.

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Thesis (MScEng) -- Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: Axial Flux Permanent Magnet (AFPM) machines have become attractive because of significant improvements in permanent magnets over the past decade, improvements in power electronic devices, and the ever increasing need for more efficient machines in electric vehicle systems. In comparison with the cylindrical radial flux motor, the AFPM machine is better in a number of aspects: short frame; compact construction; high efficiency; brush less construction; good starting torque and high-power density. The common modes of failure and typical operating conditions of AFPM machines are discussed further. The focus of this research project is a prototype AFPM machine developed by the Electrical Engineering Department of The University of Stellenbosch. The machine considered has a power rating of 300 kW and an operating efficiency of 95 % at a speed of 2300 rpm. This specific machine is used as an example to illustrate the thermal characteristics of geometrically similar AFPM machines. The thermal characterization was achieved with the use of two numerical computer models. Firstly a fluid model was specially developed and experimentally verified. The objective of the fluid model was to calculate the mass flow rate of air through any geometrically similar AFPM machine. The fluid model was further used to investigate the effects of different magnet thickness and axial gaps between the stator and the rotor plates on the mass flow rate of air through the machine. The fluid model was verified with experimental testing that was done on a half-scale Perspex model. During the experimental testing the magnet thickness was varied between 2.5 mm, 5.0 mm, and 7.5 mm along with axial gaps of 6.5 mm, 7.5 mm, 8.5 mm, and 9.5 mm. The fluid model showed a correlation to within 10 % of the experimental mass flow rates. The results of these tests showed that the magnet thickness and axial gap between the stator and the rotor plates had no significant effect on the mass flow rate of air. The fluid model was based on one-dimensional, steady-state, and incompressible flow. The second numerical computer model was a thermal model. This model was used to calculate the transient temperature response of the AFPM machine. The model was based on a twodimensional transient finite difference solution technique. Experimental temperatures taken from the prototype AFPM machine were used to verify the thermal model. Correlations between the experimental and theoretical temperatures were within 5.8 % of each other. The thermal model was used to investigate the effect of geometrical changes on the temperatures in the AFPM machine. It was found that these geometrical changes had no significant effect on the temperatures in the AFPM machine. It was also established that increasing the air mass flow rate over about I kg/s had no further effect on lowering the temperatures. The stator was also identified as being the most critical component as it reached its maximum temperature limit before any other component. Heat pipes were considered as an alternative thermal management technique. The location of the heat pipe was limited to the stator. Further simulations were done to investigate the effect of the heat pipe properties on the amount of heat removed from the stator. Recommendations were made concerning the thermal management of the current and possible future prototype AFPM machines. It was recommended that a further more detailed investigation into the use of heat pipes be considered. This recommendation is substantiated by the fact that in this research project only one type of heat pipe was considered and its location was limited to within the stator.<br>AFRIKAANSE OPSOMMING: AFPM masjiene het meer aantreklik geword weens betekenisvolle verbeteringe in permanente magnete gedurende die laaste dekade, verbeteringe in elektroniese toestelle en die vraag na meer effektiewe masjiene in elekriese voertuigstelsels. Die AFPM masjien is beter as die Silindriese Radiale Fluksie Motor wat die volgende aspekte betref: die kort raamwerk; kompakte konstruksie; hoe effektiwiteit; borsellose konstruksie; goeie aanvangsdraaimoment; en hoe-krag digtheid. Die algemene vorms van faling en ook die tipiese werkstoestande van die AFPM word verder bespreek. Hierdie navorsingsprojek fokus op die prototipe AFPM masjien wat ontwikkel is deur die Elektriese Ingenieurs Departement van die Universiteit van Stellenbosch. Die masjien onder bespreking wek 300 kW per uur op en is 95% effektief teen 'n spoed van 2300 rpm. Hierdie masjien word gebruik om die termiese kenmerke van geometries-gelyksoortige masjiene te illustreer. Die termiese eienskappe is bepaal deur die gebruik van twee numeriese rekenaarmodelle. Eerstens is 'n vloeistofmodel spesiaal ontwerp en eksperimenteel geverifieer. Die doel van die vloeistofmodel was om die massa vloeitempo van lug deur enige geometries-gelyksoortige AFPM masjien te bereken. Die vloeistofmodel is verder gebruik om die uitwerking van verskillende magneetdiktes en aksiale gapings tussen die stator en die rotorplate op die massa vloeitempo van lug deur die masjien te ondersoek. Die vloeistofmodel is geverifieer deur eksperimentele toetsing wat gedoen is op 'n halfskaal Perspex model. Tydens die toetsing het magneetdiktes gewissel tussen 2.5 mm, 5.0 mm en 7.5 mm en die aksiale gapings tussen 6.5 mm, 7.5 mm en 9.5 mm. Die vloeistof model het 'n korrelasie van binne 10 % van die eksperimentele massa vloeistempo getoon. Die resultate van hierdie toetse het getoon dat die magneetdiktes en die aksiale gapings tussen die stator en die rotorplate geen noemenswaardige uiterking op die massa vloeitempo van lug gehad het nie. Die vloeistofmodel is gebaseer op een-dimensionele, gestadigde, onsamedrukbare vloei. Die tweede numeriese model was 'n termiese model. Hierdie model is gebruik om die transiente temperatuur respons van die AFPM masjien te bereken. Die model is gebaseer op 'n tweedimensionele, transiente eindige-verskil oplossingstegniek. Eksperimentele temperature gemeet op die prototipe AFPM masjien is gebruik om die termiese model te verifeer. Die eksperimentele en teoretiese temperature het binne 5.8% met mekaar gekorrelleer. Die termiese model is gebruik om die uitwerking van geometriese veranderinge op die temperatuur in die AFPM masjien te ondersoek. Daar is gevind dat hierdie geometriese veranderinge geen noemenswaardige uitwerking op die temperature van die AFPM masjien gehad het nie. Daar is ook vasgestel dat 'n vermeerdering in die lug massa vloeitempo yerby I kg/s geen verdere uitwerking het op die verlaging van die temperatuur gehaad het nie. Die stator is ge-identifiseer as die mees kritiese komponent aangesien dit sy maksimum temperatuur limiet bereik het voor enige ander komponent, Hittepype is oorweeg as 'n alternatiewe termiese bestuurstegniek. Die plasing van die pype is tot die stator beperk. Verdere simulasies is uitgevoer om die uitwerking van die hittepyp eienskappe op die hoeveelheid hitte wat verwyder word van die stator te ondersoek. Aanbevelings is gemaak m.b.t die termiese bestuur van die huidige en moontlike toekomstige prototipes van AFPM masjiene. Daar is aanbeveel dat daar in meer besonderhede ondersoek ingestel word na die gebruik van hittepype. Die rede hiervoor is dat daar in hierdie studie net gebruik gemaak is van een tipe hittepyp en dat die plasing daarvan beperk is tot binne die stator.
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Veflingstad, Thomas. "Axial flux machines with super high torque density or super high efficiency : Design Optimization of an Axial Flux Permanent Magnet Machine Using Genetic Optimization." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27163.

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An analytical model of an axial flux permanent magnet machine has been made. The model were based on a 2-D magnetic circuit calculated at average length assuming a constant magnetic and electric loading. The model were optimized using the built-in features in MATLAB.Genetic Algorithms (GA), Gradient Based Interior-Point optimization and a hybrid combination of the two were used to optimize the design. The model were objective functions used were total material cost and total lifetime cost.The lowest average material cost were found by using hybrid GA. The material cost of the cheapest design were 58.86 \% lower than the original design. The efficiency of this solution was 13.7 \% and the power factor was 0.3.Constraints were put on the power factor to improve the optimization result. A machine design was then found with a 0.85 power factor, a 33.3 \% efficiency and a material cost 40.94\% lower than the original design.Optimizing the design with regards to total lifetime cost increased the efficiency of the machine to 58.5 \%. The material cost of the machine increased 4.3 times compared to the cheapest design, but the total lifetime energy cost of the machine was decreased 82.58 \%.A graphical user interface has been made for the optimizations by using GUIDE, MATLABs Graphical user interface designer. Through the user interface, constraints can be defined and the objection function can be changed. The most important results are displayed directly in the GUI, and additional results are displayed in the command window in MATLAB.
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Boussey, Thomas. "Étude et dimensionnement de machine à flux axial pour le véhicule hybride électrique." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT017/document.

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Dans le cadre du développement du véhicule électrique hybride, les machines électriques pour la traction sont l’objet d’un effort toujours plus important de recherche et de développement. En particulier, les contraintes d’encombrement allouées à ces machines sont toujours plus sévères et la recherche se porte vers des structures de machines compactes. C’est dans ce contexte que nos travaux se sont portés sur l’étude et le dimensionnement de machine à flux axial pour une application hybridation douce (Mild Hybrid) d’alterno-démarreur monté sur vilebrequin de puissance 50 kW et de couple 205 Nm en régime transitoire. Un état de l’art des machines à flux axial est présenté. Une analyse des configurations de bobinage avec la méthode de l’étoile des encoches est détaillée. Un début d’analyse de la machine à commutation de flux est proposé. La méthodologie de dimensionnement est étayée. Elle repose sur des études de sensibilité, un dimensionnement paramétrique, mais aussi une optimisation de la machine. Les modèles utilisés sont de type éléments finis et surface de réponse par plan d’expériences. Enfin, une étude thermique de la machine est effectuée et des pistes sont données pour l’amélioration de l’échange thermique par refroidissement diphasique<br>In the context of development of the hybrid electric vehicle, electric machines for traction are under extensive investigation. In particular, volume constraints are more and more severe and research is carried out towards compact structures. This work is focused on the study and the design of axial flux machine for a mild-hybrid application of an integrated starter generator mounted on the crankshaft. Its ratings in transient mode are 50 kW and 205 Nm. A literature review of axial flux machines is presented. A analysis of winding configurations with star of slots method is detailed. A beginning of analysis of switching-flux machine is proposed. The methodology of design is detailed. It is based on sensitivity analysis, parametric design and optimization of the machine. Utilized models are finite element model and response surface by design of experiments. Finally, a thermal study of the machine is carried out and some ideas are given to improve the thermal exchange by diphase cooling
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Linder, Johan. "An integrated brake disc and electric drive for vehicle propulsion : A FEASIBILITY STUDY." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187652.

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In this thesis, the feasibility to integrate an brake disc and electric machine is investigated. In wheel motors (IWMs) have several advantages, such as saving space in the vehicle, individual and direct control at the wheels and the absence of a mechanical transmission. However, today’s IWMs are heavy and, thus, negatively affect the driving performance of the vehicle due to the increase of the unsprung mass. By integrating an already existing part in the wheel, this increase of the unsprung mass can be minimized. The brake disc manages high temperatures, a significant wear in rough environ-ment, which puts high demands on the rotor. The second part of the machine, the stator, will be significantly affected by the high temperatures of the rotor. The temperatures of the stator are transferred by convection, conduction and radiation from the rotor or brake disc. Liquid cooling of the stator back is analyzed as a potential solution for handling the high temperatures. In order to analyze the feasibility of the concept, thermal, electric and mechanical modelling has been used. The evaluation whether it is possible or not to integrate the brake disc has been with regard to the results of weight, cost, thermal tolerance and electric performance.<br>I detta arbete undersöks möjligheten att integrera en bromsskiva med elmaskin. Hjul-motorer har flera fördelar, bland annat sparas utrymme i själva bilen, individuell kontroll samt drivning av hjulen utan mekaniska transmissioner. Men hjulmotorer som kan användas idag väger oftast så pass mycket att den odämpade massan ökar kritiskt och köregenskaper av fordonet då blir lidande. Genom att integrera en befintlig del i hjulet kan ¨okningen av odämpade massan minskas. Att använda bromsskivan som rotor, kräver att denna tål temperaturer ¨over 500◦C samt påfrestningar och slitage som en vanlig mekanisk friktionsbroms måste uthärda. Den andra delen av maskinen, statorn kommer även denna att påverkas av de höga temperaturerna av bromsskivan som kommer ledas via konvektion, konduktion och strålning. Möjligheten att kyla statorn med vätska och om detta är tillräckligt undersöks. För att analyserna genomförbarheten av projektet har termiska, elektriska och mekaniska modeller använts. Resultaten har analyserats där maskinens vikt, kostnad, termisk tålighet och elektrisk prestanda har legat till grund för bedömningen om lösningen; att integrera en broms-skiva med elmaskin är rimlig eller ej.
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Husain, Tausif. "DESIGN, ANALYSIS AND IMPLEMENTATION OF A NOVEL DOUBLE SIDED E-CORETRANSVERSE FLUX MACHINE WITH AXIAL AIRGAP." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1500561964286682.

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Malloy, Adam. "Thermal management of the permanent magnets in a totally enclosed axial flux permanent magnet synchronous machine." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/25094.

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Elevated magnet temperature in Axial Flux Permanent Magnet Synchronous Machines (AF PMSM) adversely affects torque production, material cost, and the risk of demagnetisation. These machines show promise in applications requiring high power density, however the factors which affect magnet temperature have rarely been investigated. This is therefore the focus of the thesis. A multiphysics numerical model was formulated which predicted the loss, flow, and temperature fields within an AF PMSM. A criterion for estimating the relative importance of the fluctuating component of a periodic heat source on the temperature response of a device was proposed and validated. In this work it was used to justify a steady state, rather than transient, thermal analysis. Thermometric and electrical measurements were taken from an instrumented AF PMSM to validate the numerical predictions. A novel magnet loss measurement technique was implemented; losses were determined by measuring the initial temperature rise rate of the magnets. This was achieved via a calibration relating temperature rise to voltage constant. It was found that 99% of the heat generated in the magnets was convected to the inner cavity of the machine, due to the inner cavity's recirculating flow structure this heat was dissipated to the casing and core. As a proportion of all heat entering the inner cavity 56-62% left to the casing while 28-41% left to the core. Magnet hot spots were found to be up to 13% greater than the mean temperature rise. Their location was influenced by the distribution of losses and the direction of shaft rotation. Temperature gradients within the inner cavity caused the magnet's trailing edge to incur a 10% greater temperature rise than the leading edge. As increasing temperature decreases the coercivity of magnet materials these findings are a crucial contribution to the understanding of devices where local demagnetisation is of concern.
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Book chapters on the topic "Axial flux machine cores"

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Hung, Nguyen Manh, Do Manh Cuong, Do Nguyen Hung, and Dao Huy Du. "Design Axial Flux Permanent Magnet Machine for In-Wheel of Electric Vehicle." In Advances in Engineering Research and Application. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-37497-6_26.

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Sharifi, Amir Hossein, Seyed Mehdi Seyedi, and Amin Saeidi Mobarakeh. "Quasi-3D Analytical Prediction for Open Circuit Magnetic Field of Axial Flux Permanent-Magnet Machine." In Lecture Notes in Electrical Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8672-4_40.

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"AFPM Machines With Iron Cores." In Axial Flux Permanent Magnet Brushless Machines. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8227-6_4.

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"AFPM Machines Without Stator Cores." In Axial Flux Permanent Magnet Brushless Machines. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8227-6_5.

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"AFPM Machines Without Stator and Rotor Cores." In Axial Flux Permanent Magnet Brushless Machines. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8227-6_6.

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Gandzha, Sergey, and Dmitry Gandzha. "Brushless Electric Machines with Axial Magnetic Flux: Analysis and Synthesis." In Emerging Electric Machines - Advances, Perspectives and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95945.

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An analysis of electric machines with axial magnetic flux is given. First, the effect of commutation on the electromagnetic moment and electromagnetic power is analyzed. Two types of discrete switching are considered. The analysis is performed for an arbitrary number of phases. The first type of switching involves disabling one phase for the duration of switching. The second type of switching involves the operation of all phases in the switching interval. The influence of the pole arc and the number of phases on the electromagnetic moment and electromagnetic power is investigated. The conclusion is made about the advantage of the second type of switching. It is recommended to increase the number of phases. Next, the classification of the main structures of the axial machine is carried out. Four main versions are defined. For each variant, the equation of the electromagnetic moment and electromagnetic power is derived. This takes into account the type of commutation. The efficiency of the selected structures is analyzed. The comparative analysis is tabulated for choosing the best option. The table is convenient for engineering practice. This chapter forms the basis for computer-aided design of this class of machines.
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"Approaches to predictions and measurements of flux density and loss distributions in electrical machine cores." In Electrical Steels - Volume 2: Performance and applications. Institution of Engineering and Technology, 2019. http://dx.doi.org/10.1049/pbpo157g_ch11.

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Hey, J., D. A. Howey, R. Martinez-Botas, and M. Lamperth. "Transient thermal modelling of an Axial Flux Permanent Magnet (AFPM) machine with model parameter optimisation using a Monte Carlo method." In Vehicle Thermal Management Systems Conference and Exhibition (VTMS10). Elsevier, 2011. http://dx.doi.org/10.1533/9780857095053.6.411.

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Shao, Weilin, Ming Sun, Yilai Ma, et al. "Data Analysis of Magnetic Flux Leakage Detection Based on Multi-Source Information Fusion." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2020. http://dx.doi.org/10.3233/saem200033.

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For the analysis of the magnetic flux leakage detection data in pipelines, a single information source data analysis method is used to determine the pipeline characteristics with uncertainty. A multi-source information fusion data analysis technology is proposed. This paper makes full use of the information collected by the multi-source sensors of the magnetic leakage internal detector, and adopts distributed and centralized multi-source information fusion analysis technology. First, pre-analyze and judge the information data of the auxiliary sensors (speed, pressure, temperature) of the internal magnetic flux leakage detector. Then, the data of the main sensor, ID / OD sensor, axial mileage sensor, and circumferential clock sensor of the magnetic flux leakage detector are analyzed separately. Finally, the RBF neural network + least squares support vector machine (LSSVM)fusion analysis technology is adopted to realize the fusion analysis of multi-source information. The results show that this method can effectively improve the quality and reliability of data analysis compared with traditional single information source data analysis.
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Conference papers on the topic "Axial flux machine cores"

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Husain, Tausif, Yilmaz Sozer, Iqbal Husain, and Eduard Muljadi. "Design of a modular E-Core flux concentrating axial flux machine." In 2015 IEEE Energy Conversion Congress and Exposition. IEEE, 2015. http://dx.doi.org/10.1109/ecce.2015.7310392.

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Liu, Chengcheng, Youhua Wang, Gang Lei, Youguang Guo, and Jianguo Zhu. "Comparative Study of Axial Flux Vernier Machine with SMC Cores for Electric Vehicle Application." In 2019 22nd International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2019. http://dx.doi.org/10.1109/icems.2019.8922059.

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Di Stefano, Roberto, and Fabrizio Marignetti. "A comparison between soft magnetic cores for axial flux PM synchronous machines." In 2012 XXth International Conference on Electrical Machines (ICEM). IEEE, 2012. http://dx.doi.org/10.1109/icelmach.2012.6350144.

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Fei, W., and P. Luk. "Performance study of two axial-flux permanent-magnet machine topologies with soft magnetic composite cores." In 2009 IEEE 6th International Power Electronics and Motion Control Conference. IEEE, 2009. http://dx.doi.org/10.1109/ipemc.2009.5157422.

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Di Stefano, Roberto, and Fabrizio Marignetti. "An Axial Flux Permanent Magnet Machine with charged polymer stator core." In 2011 IEEE 20th International Symposium on Industrial Electronics (ISIE). IEEE, 2011. http://dx.doi.org/10.1109/isie.2011.5984079.

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Ubani, O. G., M. A. Mueller, A. McDonald, and J. Chick. "Analysis of an Air-Cored Axial Flux Permanent Magnet Machine with Halbach Array." In 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016). Institution of Engineering and Technology, 2016. http://dx.doi.org/10.1049/cp.2016.0249.

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De Donato, G., F. Giulii Capponi, and F. Caricchi. "Fractional-slot concentrated-winding axial-flux permanent magnet machine with core-wound coils." In 2010 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2010. http://dx.doi.org/10.1109/ecce.2010.5617858.

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Liang, Xing Yan, Wei Zhang, and Hui Hui Bao. "Influence of different stator cores on electromagnetic performance of axial field flux-switching permanent magnet machines." In 2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD). IEEE, 2015. http://dx.doi.org/10.1109/asemd.2015.7453498.

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Andriollo, M., G. Bettanini, and A. Tortella. "Design procedure of a small-size axial flux motor with Halbach-type permanent magnet rotor and SMC cores." In 2013 IEEE International Electric Machines & Drives Conference (IEMDC). IEEE, 2013. http://dx.doi.org/10.1109/iemdc.2013.6556181.

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Sun, Songjun, Kai Yang, Feng Jiang, Huan Zhang, and Lixun Tang. "A Novel Axial-Radial Flux Permanent Magnet Machine Using T-Type SMC Stator Core." In 2018 21st International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2018. http://dx.doi.org/10.23919/icems.2018.8549107.

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