Driving characteristics of X-Y linear induction motor with two-dimensional primary winding

Takashi Onuki, Woojin Jeon, Kazuhito Hayashi, Jiyoon Yoo

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Abstract

In the linear induction motor (LIM), the secondary can be made to move in two directions (X and Y) by placing the primary coils two-dimensionally. When these coils are excited in the direction of 45 electrical degrees, the secondary moves in the direction which is determined by the pole pitches of both directions and the load condition. In this paper, we propose a new type of winding scheme composed of four groups of primary exciting coils, which are shifted spatially by π/2 in both the X and Y directions. Next, we compare the proposed winding scheme with another one using two independent exciting coils in both directions. We first made both of flat-type X-Y LIMs with the proposed winding scheme and with a normal scheme. Then, we analyzed the magnetic fields in the air gaps of these motors by a three-dimensional finite element analysis based on the A-φ method, and compared the results with experimental data. Finally, we applied the motor with the proposed winding scheme to a branch apparatus.

Original languageEnglish
Pages (from-to)83-90
Number of pages8
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume128
Issue number2
DOIs
Publication statusPublished - 1999 Jul 30

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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