Title :
Kinetic performance of a moving-magnet-type linear DC motor
Author :
Mizuno, T. ; Iwadare, M. ; Yamada, H. ; Nirei, M. ; Koyama, K. ; Anzai, T.
Author_Institution :
Fac. of Eng., Shinshu Univ., Nagano, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
In order to realize a high-speed linear DC motor (LDM), it is desirable to maintain a constant kinetic thrust during a change in driving frequency. The measured value of the thrust constant of the 4-pole LDM is 60.7 N/A. The calculated values obtained by the permanence method and the finite element method (FEM) are 66.1 N/A and 62.8 N/A, respectively. Kinetic thrust at an exciting AC current of 1 A is 54.3 N at a frequency of 100 Hz. This thrust is 10.5% lower compared to the static thrust at an exciting DC current of 1 A
Keywords :
DC motors; electric actuators; finite element analysis; linear motors; permanent magnet motors; servomotors; 1 A; 100 Hz; 4-pole LDM; AC current; DC current; constant kinetic thrust; driving frequency; finite element method; high-speed linear DC motor; kinetic performance; moving-magnet-type linear DC motor; permanence method; servo-actuator; thrust constant; Building materials; Circuit analysis; Coils; DC motors; Finite element methods; Frequency; Kinetic theory; Magnetic analysis; Permanent magnets; Steel;
Journal_Title :
Magnetics, IEEE Transactions on
