The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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New Design of a Permanent Magnet Linear Synchronous Motor for Seamless Movement of Multiple Passive Carriers

다수의 수동형 캐리어를 연속 이송시킬 수 있는 새로운 영구자석 선형동기전동기의 설계

  • Lee, Ki-Chang (Electric Propulsion Research Division, Korea Electrotechnology Research Institute (KERI)) ;
  • Kim, Min-Tae (Dept. of Control & Instrumentation Eng. Changwon Nat'l Univ.) ;
  • Song, Eui-Ho (Dept. of Control & Instrumentation Eng. Changwon Nat'l Univ.)
  • Received : 2015.07.18
  • Accepted : 2015.09.08
  • Published : 2015.10.20
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Abstract

Nowadays, small quantity batch production, which is so-called a flexible manufacturing system, is a major trend in the modern factory automation industry. The demands for new transportation system are increased gradually, with which multiple passive carriers carrying materials and semi-products are precisely and individually controlled along a single closed rail. Thus, a new type of permanent magnet linear synchronous motor (PMLSM), which consists of state coils on a single rail and PM movers as many as carriers, is proposed in this paper. The rail can be segmented as modules with pairs of coils and a current amplifier, which makes the transportation system simple; therefore, the rail can be easily extended and repaired. A design method of the new PMLSM with a single carrier is proposed, which can be thought as a new version of PMLSM, a coil-segmented coreless PMLSM (CS-CLPMLSM). Experimental setup for it is made, and propulsion results show that with the help of a new effective coil selection and switching algorithms, the conventional current-based vector control is sufficient to fulfill the position and velocity control of the new PMLSM. The proposed PMLSM is expected to fulfill seamless servo-control of multiple carriers also in process line, such as a new generation of flat panel display manufacturing line.

Keywords

References

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