Title :
Design criteria for detent force reduction of permanent-magnet linear synchronous motors with Halbach array
Author :
Jang, Seok-Myeong ; Lee, Sung-Ho ; Yoon, In-Ki
Author_Institution :
Electr. Eng. Dept., Chungnam Nat. Univ., Taejon, South Korea
fDate :
9/1/2002 12:00:00 AM
Abstract :
In order to improve power efficiency, Halbach magnetized topology is applied to a short secondary slotted permanent-magnet linear synchronous motor (PMLSM). Detent force of slotted PMLSMs is due to the interaction between the edges of the permanent magnet and the teeth of the primary core. This paper deals with detent force reduction methods such as adjustment of magnet length and skewing. Reduction effect of detent force and thrust performance for two topologies are also compared.
Keywords :
finite element analysis; force; linear synchronous motors; permanent magnet motors; Halbach magnetized mover; Halbach magnetized topology; detent force reduction methods; finite element analysis; magnet length adjustment; permanent-magnet linear synchronous motors; power efficiency improvement; primary core teeth; short secondary slotted PMLSM; skewing adjustment; thrust performance; Air gaps; Magnetic cores; Magnetic fields; Magnetic flux; Magnetic properties; Maxwell equations; Permanent magnets; Synchronous motors; Topology; Virtual manufacturing;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.802129
