Title :
Magnet shaping to reduce induced voltage harmonics in PM machines with surface mounted magnets
Author :
De La Ree, Jaime ; Boules, Nady
Author_Institution :
Virginia Tech., Blacksburg, VA, USA
fDate :
3/1/1991 12:00:00 AM
Abstract :
A simple methodology for reducing induced voltage harmonics in permanent magnet (PM) machines by selecting the appropriate magnet shape and dimensions is presented. The method, which uses a simplified analytical model of the magnetic circuit, is applied to three basic magnet shapes (rectangular, stepped, and trapezoidal), and can be extended to more complex geometries. The results of the analytical models are compared with results obtained from finite element analysis and with test results
Keywords :
harmonics; permanent magnet machines; PM machines; finite element analysis; induced voltage harmonics; magnet shaping; rectangular magnets; stepped magnets; surface mounted magnets; trapezoidal magnets; Magnetic analysis; Magnetic circuits; Magnetic flux; Permanent magnets; Permeability; Saturation magnetization; Shape; Surface waves; Torque; Voltage;
Journal_Title :
Energy Conversion, IEEE Transactions on
