Pdf this paper presents a design algorithm of a dual rotor axial flux induction motor, constructed from. Toroidal double sided stator ferromagnetic core has two. By combining these two materials, the axial flux induction motor obtains a limited volumetric space, including a limited height, and smooth torque output, including a limited ripple. These advantages include compact construction, better efficiency, high utilization of active materials, and good ventilation and cooling. L r s and be the angular velocities of the magnetic field line frequency, rotor, and slip respectively. Also, it can withstand high overloading and have low torque ripple. A comparison of radial and axial flux structures in. S l r the flux in the singleturn coil on the rotor surface is. Axial flux induction motor for hybrid and electric cars. Australian journal of electrical and electronics engineering. Electrical evaluation and results in geometries of 4, 6, and 8 poles of an ironless stator are.
Our af motor axial flux motor if the low torque permanent magnet motor within the eta motors range. At the right, the concentrated windings of the magnax axial flux motor. Study of an axial flux disc motor with superconductor rotor. These machines as a motor or as a generator are more efficient than their radial flux machines siblings. Axial flux induction motor is gradually attracting attention because of its advantages over conventional motors in applications of electric vehicles. In case of radial flux machines, the heat has to be transported through the stator to the outside of the machine. Application of neural networks and axial flux for the. Designed by msftechnologies for electric and hybrid drive.
Design and construction in axial magnetic flux configuration are a new alternative to develop hts motors. This paper proposes a novel dual stator solid rotor axial flux induction motor dssrafim for a lowcost flywheel energy storage system. Pdf a survey on axial flux induction motors semantic. With axial flux induction motor afim, the construction of electrical motors that is slimmer than conventional motors become possible, because the stator and rotor.
Design of axial flux permanentmagnet lowspeed machines and performance comparison between radial flux and axial flux machines lappeenranta 2005 153 p. A high temperature superconductor axial flux induction motor is proposed, for which the primary windings are made from hts tapes and the secondary is conductive nonmagnetic aluminum conductor. New axial flux electric motors pack more ev power in a smaller package duration. Beside distinct advantages of single phase axial flux induction motors, they suffer from high torque ripple.
The induction motor with an axial air gap shows some performance characteristics that are superior to conventional induction machines. Permanentmagnet synchronous motor, axialflux pmsm, radialflux pmsm. The structure of axial flux induction motor a stator windings are omitted for. Evans electric designed the new motor with integration, miniaturization and high energy efficiency in mind. Pancake motors offer high torque and power density values. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Design of axial flux permanent magnet brushless dc motor. Performance prediction of a singlephase capacitorrun axial flux induction motor under static eccentricity. Performance prediction of a singlephase capacitorrun. Design of axial flux induction motor with reduced back. Pdf a survey on axial flux induction motors semantic scholar. The coil overhang in a traditional radial flux motor is not beneficial for its functioning left. Design optimization of a singlephase axial flux induction. The motor was designed for higher rotational speeds, and therefore a good mechanical strength of the solidrotorcore rotor is required to withstand the mechanical stresses.
Design and implementation of axial flux induction motor single stator. The basic benefit comes in from the possibility of grain oriented steel u. A double stator architecture offers the highest torque density coupled with balanced axial forces. This new generation of directdrive electric machines will. The axial flux induction motor also contains rotors bars that are skewed. Fluxmotor is a flexible software solution dedicated to the predesign of electric motor. Because axial flux induction motors afims have many advantages over radial flux.
In 9 parviainen, niemela, pyrhonen, and mantere reported. Axial flux torque density nml the earliest electrical machines were axial flux motors with the first prototype built by michael faraday in 1831. Axial flux motor is also suffering from eddy current losses, and its work efficiency will be also affected by the high temperature demagnetization. The magnetic flux density generated by these currents stator at any arbitrary moment is given by. The design of the direct drive inwheel motor is shown in fig. Accordingly, in this study, a widespread design consideration is carried out on rotor skewing arrangements of a dual rotor dr axial flux induction motor with the aim of pulsating torque reduction. Axial flux motors as a genre are a very specific set of machines. New axial flux electric motors pack more ev power in a. Why arent axial flux motors dc or ac very popular or. Diagnostic system for induction motor stator winding faults based on axial flux. Pdf design of axial flux induction motor with reduced. The motor studied is a onerotoronestator axial flux induction motor, and thus, there is only one airgap between the rotor and the stator. In this tutorial will describe how to model the electromagnetic performance of a.
Axial flux induction motor for automotive applications. Its disadvantages, however, are low powerdensity, huge size and average eciency. This master thesis deals with the design of an axial. The present paper describes the design fabrication of a low cost axial flux induction motor having radial slots. Hts axial flux induction motor with analytic and fea. How an induction motor works by equations and physics. The axial flux asynchronous induction motor offers 90 kw of power, 300 nm of peak torque and features very high torque density. Induction motor equations engn1931f spring 2017 2 let. Pdf experiences with axialflux induction motor researchgate. In this paper a new detailed model of motor considering saturation, anisotropy and harmonics is developed. In small machines, to obtain enough free space between. In this paper, a combination of a modular, axial flux, and torroidal stator winding are applied to a permanentmagnet generator. Permanentmagnet motor competing with induction motor in ev application has recently been developed.
Design and simulation an axial flux permanent magnet motor is different from a conventional electric motor due to the path of magnetic flux inside the motor. Electric car axial flux 3 phase ac induction wheel motor test. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Although the design is intended for wind turbine applications, this pm machine can be used for many other applications. Design optimization of a singlephase axial flux induction motor with low torque ripple abstract. So it attracts the attention of the investigators to work on the performance prediction and design of these motors. Design of an axial flux machine for an inwheel motor. An axial flux induction motor containing both laminates and soft magnetic composite materials is described. E2 counter emf generated by the air gap flux the counter emf e2 is equal to the stator terminal voltage less the voltage drop caused by the stator leakage impedance. With the dimensions used for the comparison, the dl ratio was 3.
Using stator discharge current for the parameter estimation of a. It enables engineers to easily design their machines from standard, customized and parametric parts, add windings with multilevel assistant and attribute materials to quickly run a. Lappeenranta university of technology isbn 9522140295, isbn 9522140309 pdf, issn 14564491. Review of axial flux induction motor for automotive.
Development of axial flux hts induction motors sciencedirect. Terziidentification of induction motor parameters from free acceleration and. Pdf axial flux induction motor, design and evaluation of. Pdf axial flux induction motor, design and evaluation of steady. Axial flux, modular, permanentmagnet generator with a. Development and test of an axial flux type pm synchronous motor. The motor could produce more than 500 n levitation force with 45 a current at 100 hz. A wind turbine generator must be light to minimize the. The cogging torque of axial flux motor will be suppressed after changing the traditional fan shape axial flux motor magnet into skewed fan shape. In this paper a new detailed model of motor considering. In this paper a brief history of axial flux induction motors are presented and then the different structures of them are discussed. A comparison between axial and radial flux pm motor by. To simplify the analysis of its 3d electromagnetic field.
An axial flux induction motor is an interesting solution, where the motor is a double sided axial flux machine. Ppt induction motor powerpoint presentation free to. Motor cad induction motor combined electromagnetic and thermal model february 2015 description the motor cad allows the machine performance, losses and temperatures to be calculated for an induction machine. A new generation of axial flux ev motors design news. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. The force character is analyzed by analytic method and fe method. Stator windings condition diagnosis of voltage inverterfed induction motor in open and closedloop control. In radial flux machines, energy conversion takes place in the cylindrical air gap between the rotor and stator. Magnax prepares to manufacture radically highpowered. Keywordsaxial flux induction motor, squirrel cage, double. Download pdf info publication number us20170016449a1. Rahman also reports that the cogging torque was lower for the axial flux design. Development of axial flux hts induction motors core.
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