Axial Force Negative Stiffness in Axial‐Flux Electric Machines
IET Electric Power ApplicationsThis paper examines the axial force negative stiffness of the induction and permanent magnet (PM) axial‐flux machines. Simplified analytical models are used to identify the key normalised machine parameters which affect the variation of the axial force ...
Wen Liang Soong +4 more
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Sir Syed University Research Journal of Engineering and Technology, 2022 Permanent Magnet (PM) machines are widely used due to low cost, light weight, small size and better operating efficiency. In this paper, two single stack Axial Flux Permanent Magnet (AFPM) machines with air gap and without air gap are designed using ...
Abdul Majeed Shaikh +4 more
doaj
Weight optimisation of coreless axial‐flux permanent magnet machines
IET Electric Power Applications, 2018 This study explores the upper limits in power‐to‐weight and torque‐to‐weight ratios of coreless axial‐flux machines with permanent magnets. Moreover, it provides a comprehensive multifunctional optimisation procedure that is utilised for obtaining these limits.
Ivan Subotic +3 more
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Flux Weakening Strategy Optimization for Five-Phase PM Machine with Concentrated Windings [PDF]
, 2012 The paper applies an Efficient Global Optimization method (EGO) to improve the efficiency, in flux weakening region, of a given 5-phase Permanent Magnet (PM) machine. An optimal control for the four independent currents is thus defined.
JILIN, Gong +3 more
core
A novel axial flux stator and rotor dual permanent magnet machine
CES Transactions on Electrical Machines and Systems, 2017 A novel structure of axial flux stator and rotor dual PMs Vernier machine is presented as an effective option for high torque-density direct-driven applications. The key is to locate PMs on both sides of rotor and stator.
Y. C. Wang, W. N. Fu, X. J. Li
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Comparative Study of Dual-Rotor Permanent Magnet Machines with Series and Parallel Magnetic Circuits
World Electric Vehicle JournalThis paper compares the electromagnetic performances of radial-flux, dual-rotor, permanent magnet (DRPM) machines with series (S) and parallel (P) magnetic circuits for two rotors, i.e., SDRPM and PDRPM, accounting for different slot/pole number ...
Zhitong Ran, Zi-Qiang Zhu, Dawei Liang
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Magnet Shape Optimization of Two-Layer Spoke-Type Axial Flux Interior Permanent Magnet Machines
Energies, 2017 In this paper, the two-layer spoke-type (TLST) axial flux interior permanent magnet (AFIPM) machine is proposed. Simple flux barriers are added to optimize the air gap flux density, in which way there is no need to change the surface of the rotor.
Feng Chai, Yunlong Bi, Yulong Pei
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Magnet Shape Optimization to Reduce Pulsating Torque for a Five-Phase Permanent-Magnet Low-Speed Machine [PDF]
, 2014 The author would like to thank S. Djebarri from the Research Institute of Naval Academy for his help with computing the machines with FEA program FEMM and F.
SCUILLER, Franck
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Reducing Rare-Earth Magnet Reliance in Modern Traction Electric Machines
EnergiesCurrently, electric machines predominantly rely on costly rare-earth NdFeB magnets, which pose both economic and environmental challenges due to rising demand.
Oliver Mitchell Lee +1 more
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Étude comparative de différents correcteurs pour la commande optimale avec défauts d’une machine pentaphasée [PDF]
, 2012 La version éditeur de cet article est accessible à l'adresse suivante : doi:10.3166/ejee.15.377-400The use of multiphase PM synchronous machines associated with VSI drives appears to be a very efficient solution when a high level of reliability ...
CHARPENTIER, Jean-Frederic +3 more
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