Title :
Practical Issues in the Use of NdFeB Permanent Magnets in Maglev, Motors, Bearings, and Eddy Current Brakes
Author :
Thompson, Marc T.
Author_Institution :
Thompson Consulting Inc., Harvard, MA, USA
Abstract :
In this paper, practical design issues related to the use of high-strength neodymium-iron-boron magnets are described. These magnets have increasing utility in transportation systems (maglev, linear and rotary motors), bearings, and in eddy-current brakes. However, careful design must be done to utilize the full capabilities of these magnets.
Keywords :
eddy current braking; electric motors; iron compounds; magnetic bearings; magnetic levitation; neodymium compounds; permanent magnets; NdFeB; eddy current brakes; maglev; magnetic bearings; motors; permanent magnets; transportation systems; Coercive force; Eddy currents; Large-scale systems; Magnetic flux; Magnetic levitation; Permanent magnet motors; Permanent magnets; Permeability; Reluctance motors; Synchronous motors; Temperature; Bearings; EDS; EMS; Halbach array; eddy-current brakes; electrodynamic levitation; linear motors; linear synchronous motor; magnetic circuits; motors; neodymium-iron-boron (NdFeB); permanent magnets; permeance;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/JPROC.2009.2030231
