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A Study of the Pole Change Method of the Single-Phase Induction Motor for Capability Variation

능력가변을 위한 단상유도전동기의 극수변환 방법에 관한 연구

  • Kim, Gyu-Heon (Dept. of Electrical Engineering of Kyungnam University) ;
  • Jung, Tae-Uk (Dept. of Electrical Engineering of Kyungnam University)
  • 김규헌 (경남대학교 전기공학과) ;
  • 정태욱 (경남대학교 전기공학과)
  • Received : 2020.04.28
  • Accepted : 2020.05.22
  • Published : 2020.06.30

Abstract

Capacitor-run single-phase induction motor is cheaper than motors that use permanent magnets and is widely used in home appliances and industries based on relatively high durability and productivity. It can also be operated by line. However speed cannot be controlled because the line frequency is free. In this paper we dealt pole change method one of the method controlling speed of capacitor-run single-phase induction motor. The conventional pole change method is difficult to improve the power and efficiency of the motor because the composition of the pole change device is complex and do not have enough area of the windings because of windings not used according to the driving conditions. In this paper, we proposed the pole change method that is used main windings and auxiliary windings at 4 poles operation and used auxiliary windings as compensation windings at 2 poles operation. The proposed method was verified through finite element analysis.

Keywords

References

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