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Optimized design of permanent magnet for disk permanent magnet governor [PDF]
Scientific Reports, 2023 To research the magnetic field and mechanical characteristics of the permanent magnet governor, the static magnetic field of the sector permanent magnet is analyzed by the molecular current method in the permanent magnet governor.
Manman Xu +5 more
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Stellarators with Permanent Magnets [PDF]
Physical Review Letters, 2020 It is shown that the magnetic-field coils of a stellarator can, at least in principle, be substantially simplified by the use of permanent magnets. Such magnets cannot create toroidal magnetic flux but they can be used to shape the plasma and thus to create poloidal flux and rotational transform, thereby easing the requirements on the magnetic-field ...
P. Helander +3 more
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Energy Reports, 2023 Leakage flux magnitude and pattern greatly affect transformer short-circuit resistance. In this paper, finite element calculations and experimental measurements is used to calculate the leakage magnetic field of a transformer.
Tiannan Meng +5 more
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Energy Reports, 2023 The occurrence of a short-circuit fault in a transformer results in a rapid increase in the short-circuit current, and the temperature of the transformer winding rises rapidly.
Junyang Wang +5 more
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IET Electric Power Applications, 2022 In order to investigate the effects of shrink fitting on the amorphous core, a test device is designed and the magnetisation and specific iron loss characteristics of the amorphous core are measured.
Longfei Zhu +3 more
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Applied Sciences, 2023 The permanent magnetic suspension (PMS) train has distinct advantages in reducing energy consumption and increasing the suspension air gap. Aiming at the problems of uncontrollable magnetic field and underdamping of the PMS system, the electromagnetic ...
Yao Qin +3 more
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CES Transactions on Electrical Machines and Systems, 2022 To solve the problem of large torque ripple of interior permanent magnet synchronous motor (IPMSM), the rotor surface notch design method was used for V-type IPMSM.
Ran Xu, Wenming Tong
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Characterization of Permanent Magnet Magnetization [PDF]
IEEE Transactions on Magnetics, 2017 The performances of electrical machines highly depend on the behavior of materials, such as steel, copper, and permanent magnet. This paper focuses on permanent magnets whose magnetization must be precisely known. Thus a non-destructive approach which includes a combination of experiments and inverse problem, using the magnetostatic moment method, is ...
Laure Arbenz +4 more
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Cooling System Design and Thermal Analysis of Modular Stator Hybrid Excitation Synchronous Motor
CES Transactions on Electrical Machines and Systems, 2022 Hybrid excitation synchronous motor has the advantages of uniform and adjustable electromagnetic field, wide speed range and high power density. It has broad application prospects in new energy electric vehicles, wind power generation and other fields ...
Shengnan Wu, Daquan Hao, Wenming Tong
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Bose-Einstein Condensation on a Permanent-Magnet Atom Chip [PDF]
, 2005 We have produced a Bose-Einstein condensate on a permanent-magnet atom chip based on periodically magnetized videotape. We observe the expansion and dynamics of the condensate in one of the microscopic waveguides close to the surface.
B E Sauer +14 more
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