ANALYTICAL CALCULATION OF MAGNETIC FIELD DISTRIBUTION IN COAXIAL MAGNETIC GEARS [PDF]
Progress In Electromagnetics Research, 2009 Coaxial magnetic gears are a new breed of magnetic devices, which utilize the interaction of permanent magnet fields to enable torque transmission. Apart from using a numerical approach for their magnetic field analysis, an analytical approach is highly desirable since it can provide an insightful knowledge for design and optimization. In this paper, a
Linni Jian, Kwok-Tong Chau
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Design of coaxial magnetic gear utilising a novel permanent magnet Halbach array structure [PDF]
IET Electric Power Applications, 2021 Mechanical gears are constrained due to wear and tear and call for lubrication. A magnetic gear, utilising permanent magnet (PM) arrays, facilitates the mechanical gear roles. It can withstand high‐speeds and large loads with zero friction.
Hanieh Mafi +2 more
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Cost-Effectiveness Comparison of Coaxial Magnetic Gears With Different Magnet Materials [PDF]
IEEE Transactions on Magnetics, 2014 This paper presents a comparative study between the nonrare-earth PM and rare-earth PM-based coaxial magnetic gears. First, using finite-element analysis, the electromagnetic performances of four coaxial magnetic gears, which are installed with nonrare- or rare-earth PMs, are analyzed and quantitatively compared based on the same structure.
Chen, M, Li, W, Liu, C, Chau, KT
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Torque sensitivity analysis for triple‐speed coaxial magnetic gear using finite element method [PDF]
IET Electric Power Applications, 2021 The authors introduce a new type of triple‐speed coaxial magnetic gear (TSCMG) and analyses its operation with sensitivity analysis. The effect of various factors is evaluated on TSCMG performance, including the yoke thickness, permanent magnet (PM ...
Ali Moghimi +2 more
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Analysis and Design Optimization of a Coaxial Surface-Mounted Permanent-Magnet Magnetic Gear [PDF]
Energies, 2014 This paper presents the analysis and design optimization of a coaxial surface-mounted permanent-magnet magnetic gear. The magnetic field distribution in the coaxial magnetic gear is calculated analytically in the polar coordinate system and then ...
Xiaoxu Zhang +3 more
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Reinforcement Learning Optimization of Coaxial Magnetic Gear Geometry with Finite Element Analysis [PDF]
MachinesThis manuscript presents a reinforcement learning (RL) agent method to optimize the geometry of a coaxial magnetic gear using a 2D finite element magnetic (FEM) simulation.
Georgi Ivanov +5 more
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Comparison of Coaxial Magnetic Gears With Different Topologies [PDF]
IEEE Transactions on Magnetics, 2009 This paper quantitatively compares two coaxial magnetic gears (CMGs) with different topologies, namely, the CMG installed with radially magnetized permanent magnets (CMGRM) and the CMG installed with Halbach magnetized permanent magnets (CMGHM). By using the 3D finite element method, the end-effect and the performances of both CMGs are investigated ...
Chau, KT +5 more
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Optimal Design of a Coaxial Magnetic Gear Pole Combination Considering an Overhang [PDF]
Applied SciencesThis paper presents a comprehensive design approach for optimizing the pole configuration of a coaxial magnetic gear (CMG) structure with an overhang to enhance torque characteristics.
Tae-Kyu Ji, Soo-Whang Baek
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Nonlinear control of coaxial double rotor magnetic gear based on high gain observer in wind turbine [PDF]
IET Control Theory & ApplicationsThis paper proposes a nonlinear control law with a dynamic controller based on high gain observer (HGO) for a co‐axial double rotor magnetic gear (CADRMG) based on Halbach array used in wind turbines.
Hamideh Habibi +2 more
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Surrogate-Based Multi-Objective Optimization of Flux-Focusing Halbach Coaxial Magnetic Gear [PDF]
EnergiesDue to their contact-free and low-maintenance features, magnetic gears (MGs) have been increasingly investigated to amplify the torque of electric motors in electric vehicles (EVs).
Aran Shoaei +2 more
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