Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.07a
- /
- Pages.224-227
- /
- 1998
Design of a Moving Magnet Type Linear DC Motor
가동 자석형 선형 직류 전동기의 설계
- Jung, H.J. (Department of Electrical Engineering, Dongguk University) ;
-
Kim, Y.
(Department of Electrical Engineering, Dongguk University) ;
-
Baek, S.H.
(Department of Electrical Engineering, Dongguk University) ;
-
Yoon, S.Y.
(Department of Electrical Engineering, Dongguk University) ;
-
Kim, P.S.
(Daerim College) ;
- Kwon, S.D. (Daerim College)
- 정헌준 (동국대학교 전기공학과) ;
-
김용
(동국대학교 전기공학과) ;
-
백수현
(동국대학교 전기공학과) ;
-
윤신용
(동국대학교 전기공학과) ;
-
김필수
(대림대학) ;
- 권순도 (대림대학)
- Published : 1998.07.20
Abstract
Linear motors are increasingly employed as direct actuators replacing the more conventional systems composed by a rotating motor and a mechanical device. Linear DC motor is useful in a high speed and high accuracy positioning system with a feedback controller. Because of these advantages, linear DC motors have already been used as motors of pen recorders and magnetic disk storage devices, these are moving coil type linear DC motors as these movers are light. Moving magnet type linear DC motor has advantages at long stroke motors because its mover's feeding wires for driving is not necessary. This paper is concerned with the analysis of linear DC motor that is moving magnet type with unipolar. In order to analyze the dynamic behaviour a mathematical model based on a simplified field analysis developed. A two dimensional finite element field solution is employed in order to illustrate the effect of yoke saturation and motor performance. It is deduced the relation between the limit value of the thrust of the linear DC motor and the dimension of the yokes.
Keywords