A transfer-positioning system with linear DC motor

Author

Kajioka, Morimasa ; Torii, Susumu ; Watada, Masaya ; Ebihara, Daiki

Author_Institution

Dept. of Electr. & Electron. Eng., Musashi Inst. of Technol., Tokyo, Japan

Volume

2

fYear

2000

fDate

2000

Firstpage

1325

Abstract

This paper describes the design and control of a linear DC motor with discontinuous stator for transfer and positioning system. Normally, a moving coil type linear DC motor (LDM) for positioning system is designed with the magnet track assembly as a stationary member and the coil assembly as a moving member. In this paper, the authors designed the magnet assembly so as to be a moving member and the coil assembly to be a stationery member. The coil assembly (stator) is placed discontinuously along the rail assembly. The magnet track assembly is installed on the moving cart. The cart is operated by open loop control under transfer operation and by closed loop control at position control. A prototype unit is assembled and evaluation tests have been conducted. This system shows good performance at both operation transfer and position control

Keywords

DC motors; automatic guided vehicles; closed loop systems; linear motors; machine control; materials handling; position control; stators; closed loop control; coil assembly; discontinuous stator; linear DC motor; magnet assembly; moving cart; moving member; open loop control; position control; positioning system; rail assembly; stationery member; stator; transfer operation; transfer system; transfer-positioning system; Assembly systems; Coils; Control systems; DC motors; Open loop systems; Position control; Prototypes; Rails; Stators; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2000. Conference Record of the 2000 IEEE

Conference_Location

Rome

ISSN

0197-2618

Print_ISBN

0-7803-6401-5

Type

conf

DOI

10.1109/IAS.2000.882055

Filename

882055