Title :
Minimization Design of Normal Force in Synchronous Permanent Magnet Planar Motor With Halbach Array
Author :
Huang, Rui ; Zhou, Jianpei ; Kim, Gyu-Tak
Author_Institution :
Dept. of Electr. Eng., Changwon Nat. Univ., Changwon
fDate :
6/1/2008 12:00:00 AM
Abstract :
This paper deals with the characteristics analysis and the normal force minimization of a synchronous permanent magnet planar motor (SPMPM) with a Halbach magnet array. The characteristics such as flux density, back-EMF and thrust are evaluated and compared with experimental values. The measured values of back-EMF are in good agreement with the simulation ones, but the experimental results of thrust are much smaller than those of simulation due to the friction force generated by the normal force. The normal force is minimized by using a genetic algorithm, and it is greatly decreased from 672.83 N to 144.24 N.
Keywords :
electric potential; genetic algorithms; permanent magnet motors; synchronous motors; Halbach magnet array; back-EMF; flux density; friction force; genetic algorithm; normal force minimization; synchronous permanent magnet planar motor; Characteristics analysis of planar motor; Halbach permanent magnet array; genetic algorithm; minimization of normal force;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.914856
