Results 281 to 290 of about 4,766,046 (338)
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Presentation of Novel High Torque Density Dual-Stator Wound-Field Flux Modulation Machines
International Conference on Electrical Machines, 2020An attempt is made in this paper to present some novel wound-field flux modulating machines (WF-FMMs) based on the double stator (DS) design topology.
U. Akuru, M. Kamper
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Spin-Torque Driven Switching Probability Density Function Asymmetry
IEEE Transactions on Magnetics, 2012We studied the spin transfer torque (STT) driven switching voltage distribution systematically by characterizing the switching probability density function (PDF) with large statistics (105 trials) across a wide time scale from 5 ns to 1 μs. The skew normal distribution function is found to be a good one to fit the measured switching PDF down to low ...
Hui Zhao +8 more
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IEEE Transactions on Vehicular Technology, 2019
Permanent-magnet vernier machine has an excellent potential for electric vehicles due to its desirable features of a simple mechanical structure and high torque density, whereas the poor power factor is its main drawback.
Liang Xu +3 more
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Permanent-magnet vernier machine has an excellent potential for electric vehicles due to its desirable features of a simple mechanical structure and high torque density, whereas the poor power factor is its main drawback.
Liang Xu +3 more
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IEEE transactions on industry applications, 2019
This paper proposes a novel shaped-magnet surface permanent magnet machine design concept featuring magnets shaped according to a sinusoid plus a third harmonic along the axial direction, and full-pole-pitched distributed stator windings with a unity ...
Zhentao S. Du, T. Lipo
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This paper proposes a novel shaped-magnet surface permanent magnet machine design concept featuring magnets shaped according to a sinusoid plus a third harmonic along the axial direction, and full-pole-pitched distributed stator windings with a unity ...
Zhentao S. Du, T. Lipo
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Determination of tidal torques independently of densities
Studia Geophysica et Geodaetica, 1986The components of the tidal torques along the axes of the inertia ellipsoid of a perfectly elastic Earth have been derived quite independently of the density distribution of masses within the Earth. It has been demonstrated that not only the sectorial, but also the tesseral terms in the tidal forming potential are responsible for the tidal deceleration
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Torque and Power Density of Coaxial Magnetic Gears
2019 II International Conference on High Technology for Sustainable Development (HiTech), 2019In the present work, the recent positive trend in torque and power density of the coaxial magnetic gears is discussed. Timeline of magnetic gears development according to design topology and magnetic materials improvements is presented. Five generations of magnetic gears are recognized according to the torque density limitations.
Valentin Mateev +2 more
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Torque Density Permanent Magnet Machine for Automotive Applications
7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014), 2014This paper presents work done on the analysis of a new permanent magnet machine topology using finite element in order to achieve high torque density specifically for an automotive application. Also different types of electric motors that are suitable for automotive applications are shown.
Y.A. Alamoudi +2 more
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High torque density low speed permanent magnet machine
2011 IEEE International Electric Machines & Drives Conference (IEMDC), 2011This paper gives different solutions in order to increase torque density of permanent magnets machines. The study deals with low frequency machines and, in this case, iron losses are less important than copper losses, so that supplying the machines with square wave currents can be interesting. The authors identify an original structure in which the end
Stephane Mouty +5 more
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IEEE transactions on energy conversion, 2019
The price fluctuation and the unstable supply chain of rare-earth permanent magnet (PM) have posed potential risks for further application of rare-earth PM motors.
Xiaoyong Zhu +4 more
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The price fluctuation and the unstable supply chain of rare-earth permanent magnet (PM) have posed potential risks for further application of rare-earth PM motors.
Xiaoyong Zhu +4 more
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The Formula SAE Electric Vehicle Competition: A High-Torque Density Permanent Magnet Motor
IEEE Industry Applications Magazine, 2020The formula sae, or formula student, is an international vehicle design competition carried out by university students. This article deals with a fractional-slot synchronous permanent magnet (PM) machine designed to be mounted in the wheel hub of an ...
Marco Munaro, N. Bianchi, G. Meneghetti
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