Title :
Electromagnetic-force analysis of the magnetically levitated motor with two directions of movement
Author :
Chen, Yaow-Ming ; Fan, Shu-Yuan ; Lu, Wie-Shin
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Cheng Univ., Chia-Yi, Taiwan
Abstract :
A magnetically levitated motor (MLM) with two directions of movement is presented in this paper. The thrust and the levitation force of the proposed motor can be achieved simultaneously by using only a single power source. Analytical equations for the operation principle of the proposed MLM are derived. Computer simulations of the MLM characteristics by using the finite-element-analysis method are also presented. The same trend can be found between analytical equations and computer-simulation results. Then, some experimental results are provided to confirm the theoretical analysis. All of the results can provide very useful information of mechanical-structure design and control scheme development for the MLM.
Keywords :
electric motors; electromagnetic forces; finite element analysis; linear motors; magnetic levitation; electromagnetic force analysis; finite element analysis method; levitation force; magnetically levitated motor; mechanical structure design; thrust force; Couplings; Electromagnetic analysis; Equations; Magnetic analysis; Magnetic levitation; Magnetic materials; Magnetic noise; Propulsion; Superconducting magnets; Transportation; Electromagnetic force (EMF); linear motor; magnetically levitated motor (MLM);
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2005.861310