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Investigate of a Flux Switching Permanent Magnet Machine with Alternative Flux Bridges
2019 IEEE Energy Conversion Congress and Exposition (ECCE), 2019In this paper, a novel flux switching permanent magnet (FSPM) machine with alternative flux bridges is proposed to achieve a larger torque density than regular FSPM machine, especially for high pole ratio (ratio of rotor tooth number to winding pole pair number) FSPM machine. The proposed FSPM machine has the same rotor, PMs, and winding structure, but
Ziyi Liang +3 more
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A Mechanical Flux Weakening Method for Switched Flux Permanent Magnet Machines
IEEE Transactions on Energy Conversion, 2015Several switched flux permanent magnet (SFPM) machines with mechanically movable flux adjusting technique are proposed, analyzed, and compared for applications which demand high speed and efficiency. By using ferromagnetic pieces-–one per every stator pole or every alternative stator pole, which are named as flux adjusters (FAs) and located on the ...
Z. Q. Zhu +3 more
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Analysis of Transverse-Flux Linear Switched-Flux Permanent Magnet Machine
IEEE Transactions on Magnetics, 2015The transverse-flux linear switched-flux permanent magnet machine is investigated by 3-D finite-element analysis in this paper. The topology of the machine, as well as the machine operation principle, is introduced first. In order to improve the thrust force performance of the machine, two aspects are analyzed. One is the average thrust force, which is
Q. F. Lu +3 more
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Models of elastic and inelastic flux switching
IEEE Transactions on Magnetics, 1966The total \dot{\phi}(t) waveform of a square-loop magnetic core switched by MMF F(t) from negative remanence \phi = -\phi_{r} is composed of elastic \dot{\phi}_{\epsilon}(t) , decaying inelastic \dot{\phi}_{i}(t) , and bell-shaped main inelastic \dot{\phi}_{ma}(t) . The worst delta noise in a coincident-current memory core pair is essentially \dot{\phi}
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Computation of flux switching in magnetic circuits
IEEE Transactions on Magnetics, 1965A number of physical and semiempirical flux-switching models that have appeared in the literature are reviewed briefly and classified. A thin ferrite core is switched by essentially a step mmf (with short rise time T r ). Three components of the total \dot{\phi}(t) are distinguished and semiempirical models are proposed for each : 1) an initial elastic
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Flux Switching in Overdriven Multipath Cores
Journal of Applied Physics, 1963Flux-switching phenomena characteristic to multipath cores result from the dependence of switching in one leg (a physical branch between the core junctions) on switching in the others. Reversible Δφ in a leg driven far into saturation may cause appreciable irreversible Δφ in other legs.
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Axial Flux Switched Reluctance Machines
2019Switched reluctance machines (SRM) can fall into three classifications based on the direction of flux through the air gap: radial, transversal, and axial flux. The first axial flux machine was developed in 1821 by British physicist Michael Faraday. He invented a primitive disc motor that was the early form of an electric machine.
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Estimation of flux linkage by analyzing flux paths in a switched reluctance motor
2012 IEEE Vehicle Power and Propulsion Conference, 2012Inductance of phase windings is a key parameter in determining the behavior of a switched reluctance motor (SRM) [1–8]. Therefore, the accurate prediction of inductance at aligned and unaligned rotor positions makes a significant contribution to the design of an SRM and its analytical approach is not straightforward due to nonlinear saturation in flux.
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Flux-switching machines and drives
2016 XXII International Conference on Electrical Machines (ICEM), 2016openaire +1 more source