Title :
A design of transverse flux motor with permanent magnet shield
Author :
Jeong, Y.H. ; Kang, D.H. ; Kim, J.M. ; Jang, S.M.
Author_Institution :
Ind. Application Res. Center, Korea Electrotechnol. Res. Inst., Changwon, South Korea
Abstract :
Transverse flux motors (TFMs) have a structure in which the direction of the current corresponds with the motion direction of the rotor, and a ring-shaped stator winding. The advantages of TFMs are high force density per volume and high efficiency because the resistance loss of winding end-turns is absent and the magnetic circuit is separated from the electric circuit. The authors designed two kinds of TFM, which are a variable reluctance type and a permanent magnet-shield type. The TFM with the PM-shield has a permanent magnet on the teeth of stator to shield it from airgap leakage flux, thereby increasing the power density. By analyzing these motors using 2-D and 3-D FEM and experimental measurements, the authors show the effect of the PM-shield
Keywords :
finite element analysis; machine testing; machine theory; magnetic circuits; magnetic flux; magnetic leakage; magnetic shielding; permanent magnet motors; rotors; stators; 2-D FEM; 3-D FEM; airgap leakage flux; efficiency; electric circuit; force density; magnetic circuit; measurements; permanent magnet shield; power density; ring-shaped winding; rotor motion direction; transverse flux motor design; winding end-turns; Electric resistance; Magnetic circuits; Magnetic flux; Magnetic separation; Magnetic shielding; Permanent magnet motors; Permanent magnets; Reluctance motors; Rotors; Stator windings;
Conference_Titel :
Industrial Electronics, 2001. Proceedings. ISIE 2001. IEEE International Symposium on
Conference_Location :
Pusan
Print_ISBN :
0-7803-7090-2
DOI :
10.1109/ISIE.2001.931610
