Results 11 to 20 of about 1,107,932 (402)

Hydrometallurgical Recovery of Rare Earth Elements from NdFeB Permanent Magnet Scrap: A Review

open access: yesMetals, 2020
NdFeB permanent magnet scrap is regarded as an important secondary resource which contains rare earth elements (REEs) such as Nd, Pr and Dy. Recovering these valuable REEs from the NdFeB permanent magnet scrap not only increases economic potential, but ...
Yuanbo Zhang   +5 more
doaj   +2 more sources

On the potential of hard ferrite ceramics for permanent magnet technology—a review on sintering strategies [PDF]

open access: yesJournal of Physics D: Applied Physics, 2021
A plethora of modern technologies rely on permanent magnets for their operation, including many related to the transition towards a sustainable future, such as wind turbines or electric vehicles.
C. Granados-Miralles, P. Jenuš
semanticscholar   +1 more source

Optimization Design of High-speed Interior Permanent Magnet Motor with High Torque Performance Based on Multiple Surrogate Models

open access: yesCES Transactions on Electrical Machines and Systems, 2022
In order to obtain better torque performance of high-speed interior permanent magnet motor(HSIPMM) and solve the problem that electromagnetic optimization design is seriously limited by its mechanical strength, a complete optimization design method is ...
Shengnan Wu, Xiangde Sun, Wenming Tong
doaj   +1 more source

Design and Analysis of New Modular Stator Hybrid Excitation Synchronous Motor

open access: yesCES Transactions on Electrical Machines and Systems, 2022
Hybrid excitation motor is a combination of permanent magnet motor and electric excitation motor, which can flexibly adjust the air gap magnetic field. At present, the traditional silicon steel sheet core material is widely used, but this material limits
Shengnan Wu, Yukun Wang, Wenming Tong
doaj   +1 more source

Loss Calculation and Thermal Analysis for High-Speed Permanent Magnet Synchronous Machines

open access: yesIEEE Access, 2020
The small size of high-speed permanent magnet synchronous machines (PMSMs) makes the increase of loss density and the difficulty of heat dissipation.
Chao Zhang   +3 more
doaj   +1 more source

A novel multi‐objective optimization method for the optimization of interior permanent magnet synchronous machines

open access: yesIET Electric Power Applications, 2021
A novel hybrid multi‐objective optimization method which combines the Taguchi method with multi‐level Kriging model is developed for optimization of interior permanent magnet synchronous machines (IPMSMs).
Wenming Tong   +3 more
doaj   +1 more source

Temperature Field Analysis of Mine Flameproof Outer Rotor Permanent Magnet Synchronous Motor with Different Cooling Schemes

open access: yesCES Transactions on Electrical Machines and Systems, 2022
Aiming at the problem of temperature rise of mine flameproof outer rotor permanent magnet synchronous motor, based on the fluid structure coupling method, the temperature distribution of motor under three cooling schemes of air cooling and water cooling ...
Shengnan Wu, Daquan Hao, Wenming Tong
doaj   +1 more source

In vivo 3D brain and extremity MRI at 50 mT using a permanent magnet Halbach array

open access: yesMagnetic Resonance in Medicine, 2020
To design a low‐cost, portable permanent magnet‐based MRI system capable of obtaining in vivo MR images within a reasonable scan time.
T. O’Reilly   +4 more
semanticscholar   +1 more source

Driving-Cycle-Oriented Design Optimization of a Permanent Magnet Hub Motor Drive System for a Four-Wheel-Drive Electric Vehicle

open access: yesIEEE Transactions on Transportation Electrification, 2020
The electrical drive system is crucial to the drive performance and safety of electric vehicles (EVs). In contrast to the traditional two-wheel-driven EVs, the hub motor four-wheel-drive system can steer the vehicle by controlling the torque and speed of
Xiaodong Sun   +5 more
semanticscholar   +1 more source

Permanent Magnet Axial Section Shaping Optimization Surface-Mounted Permanent Magnet Synchronous Motor

open access: yesCES Transactions on Electrical Machines and Systems, 2023
In this paper, a new type of harmonic injection permanent magnet shape optimization method is proposed to suppress the torque ripple of surface-mounted permanent magnet synchronous motor.
Shengnan Wu, Qifeng Zhao, Wenming Tong
doaj   +1 more source

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