Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2012.7.3.342
Title & Authors
A New Moving-magnet Type Linear Actuator utilizing Flux Concentration Permanent Magnet Arrangement Goto, Akira; Okamoto, Takuya; Ikariga, Atsushi; Todaka, Takashi; Enokizono, Masato;
This paper presents a moving-magnet type linear actuator designed by using flux concentration type permanent magnet arrangement, which can generate higher magnetic flux density in air-gap. In this construction, detent force which is induced by both slot-effect and end-effect becomes larger due to strong attractive forces. To reduce cogging force we have employed a modular mover structure of two magnetic pole sections connected with a center yoke. The improved motor performance is demonstrated with the prototype machine.
Linear motor;Moving magnet type;Cogging;Thrust;Center yoke;End yoke;
Optimal Design of a Novel Permanent Magnetic Actuator using Evolutionary Strategy Algorithm and Kriging Meta-model, Journal of Electrical Engineering and Technology, 2014, 9, 2, 471
Characteristics Analysis and Design of a Novel Magnetic Contactor for a 220 V/85 A, IEEE Transactions on Magnetics, 2013, 49, 11, 5498
Minimization of a Cogging Torque for an Interior Permanent Magnet Synchronous Machine using a Novel Hybrid Optimization Algorithm, Journal of Electrical Engineering and Technology, 2014, 9, 3, 859
H. Luo, J. Wu and W. Chang, "Minimizing Thrust Fluctuation in Moving-Magnet Permanent-Magnet Brushless Linear DC Motor," IEEE Transactions on Magnetics, vol. 43, no. 5, pp. 1968-1972, 2007.
M. Sanada, S. Morimoto, Y. Takeda, "Interior Permanent Magnet Linear Synchronous Motor for High Performance Device," IEEE Transactions on Industry Application, vol. 33, no. 4, pp. 966-972, 1997.
S. Zeze, T. Todaka, M. Enokizono, "Magnetic Field Analysis of Concentrated Surface Permanent Magnetic Synchronous Motor," Journal of the Japan Society of Applied Electromagnetics and Mechanics, vol. 17, Supplement September 2009, pp. S121- S124, 2009.
Atushi Ikariga, Hiroyasu Shimoji, Takashi Todaka and Masato Enokizono "High-density permanent magnet machines", International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 19-23, 2007.
Y-J Kim, M. Watada and H. Dohmeki, "Reduction of the Cogging Force at the Outlet Edge of a Stationary Discontinuous Primary Linear Synchronous Motor," IEEE Transactions on Magnetics, vol. 43, no. 1, pp. 40-45, 2007.
I.-S. Jung, J. Hur, D.-S. Hyun, "Performance Analysis of Skewed PM Linear Synchronous Motor According to Various Design Parameter," IEEE Transactions on Magnetics, vol. 37, no. 5, pp. 3653-3657, 2001.
T. Li and G. Slemon, "Reduction of Cogging Torque in Permanent Magnet Motor," IEEE Transactions on Magnetics, vol. 24, No. 6, pp. 2901-2903, 1988.
Tomoyuki Lee, Naoki Maki, "Propulsive Force Simulation of Cylindrical Synchronous Motors and Improvement in the Propulsive Force Fluctuations," IEEJ Trans. IA, vol.126, no.4, pp.519-525, 2006.