A new radial quadrupole Nd2Fe14B Halbach ring for application in motor
Source abstract
Abstract
A new Nd 2Fe 14 B Halbach cylinder ring is fabricated by combining with magneto-mechanical molding and sintered process. It does not only exhibit larger surface magnetic flux density (ca.401mT), but also shows better magnetic field homogeneity comparing to spliced Halbach magnets (ca.324mT). Furthermore, performance of motor based on spliced and integrated Halbach magnet is also characterized and compared in detail. The power and torque of motor based on integrated Halbach magnet are effectively improved to be 20% and 9.4%, respectively. Moreover, the working efficiency of motor based on integrated Halbach magnet increases from 90% to 96% comparing to spliced Halbach magnet. These results do not only confirm formation of integrated Nd 2Fe 14B Halbach cylinder ring with high performance, but also provide a new method to improve performance of permanent magnet motor.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties of Alloys · Electric Motor Design and Analysis · Magnetic Bearings and Levitation Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Wang · Simulation Study on Electromagnetic Characteristics of Halbach-Array Dual-Permanent-Magnet Excited Vernier Machine Energy Reports · 2023 · 754
2. Sliding mode control of an outer-rotor magnetic-gear-integrated motor with a Halbach array10.1016/j.conengprac.2023.105561 ↗
3. Frozen image analysis of a superconducting magnetic levitation system consisting of multi-surface superconductor and Halbach array permanent magnet configuration10.1016/j.cryogenics.2021.103328 ↗
4. Improving the field homogeneity of fixed- and variable-diameter discrete Halbach magnet arrays for MRI via optimization of the angular magnetization distribution10.1016/j.jmr.2021.106923 ↗
5. The art and science of magnet design10.1119/1.1970159 ↗
6. Design and analysis of an integrated halbach-magnetic-geared permanent-magnet motor for electric vehicles10.4130/jaev.7.1213 ↗
7. Development of rare earth free permanent magnet generator using Halbach cylinder rotor design10.1016/j.renene.2017.05.034 ↗
8. Single Halbach Field Magnet Desined from Dual Halbach Field Magnet for Rotating Machines
9. Investigation of magnetic performance on the cylinder-shaped PM type linear Halbach array assembled by 45 degree rotating arrangement
10. A novel slotless halbach-array permanent-magnet brushless DC motor for spacecraft applications10.1109/TIE.2011.2161058 ↗
11. Simultaneous enhancement of coercivity and electric resistivity of Nd-Fe-B magnets by Pr-Tb-Al-Cu synergistic grain boundary diffusion toward high-temperature motor rotors10.1016/j.jmst.2023.03.001 ↗
12. Rationally selecting the chemical composition of the Nd-Fe-B magnet for high-efficiency grain boundary diffusion of heavy rare earths10.1039/D1TC05469D ↗
13. Studies on structural and magnetic properties of ball milled Nd2Fe14B intermetallic powders10.1179/143307511X13031890747453 ↗
14. Automatic alignment of multiple magnets into Halbach cylinders10.1016/j.jmmm.2015.01.011 ↗
15. Design, modeling and experimental verification of circular Halbach electromagnetic energy harvesting from bearing motion10.1016/j.enconman.2018.11.037 ↗
16. Rock magnetic applications of Halbach cylinders10.1016/S0031-9201(01)00247-3 ↗
17. Magnetic field homogeneity perturbations in finite Halbach dipole Magnets10.1016/j.jmr.2013.10.026 ↗
18. Analysis of the magnetic field, force, and torque for two-dimensional Halbach cylinders10.1016/j.jmmm.2009.08.044 ↗
19. Exploration of the magnetic field effect on the orientation of Nd2Fel4B crystallites at high temperatures10.1016/0304-8853(95)00495-5 ↗
20. Design of A High Torque Density Motor Based on Halbach Array Integral Ring Rotor
21. Sensor-less field orientation control for brushless direct current motor controller for electric vehicles
22. The magnetic-field-dependence driving force for premartensitic transformation in Heusler alloy Ni2MnGa10.1016/j.msea.2006.02.070 ↗
23. Drive topologies for solar-powered aircraft10.1109/TIE.2009.2031190 ↗
24. Very high efficiency drives for solar powered uN·manned aircraft
25. Brushless DC motor for a solar airplane application: comparison between simulations and measurements
26. Optimization of electric motor for a solar airplane application10.1109/TIA.2006.876073 ↗
27. Research on electromagnetic and thermal issue of high-efficiency and high-power-density outer-rotor motor
28. Application of a kind of high efficiency PMSM drive system in solar airplane
29. Design optimization studies on high torque and high power density hybrid excitation flux switching motor for HEV10.1016/j.proeng.2013.02.041 ↗