The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

The Design of Rotor Bars of Single-Phase Line-Start Permanent Magnet Motor for Improving Starting Characteristics

단상 유도동기전동기의 기동 특성 개선을 위한 회전자 바 형상 설계

  • 이철규 (한양대학교 에너지변환시스템 연구실) ;
  • 권순효 ((주)삼흥사) ;
  • 양병렬 ((주)삼성전자 DA 연구소) ;
  • 권병일 (한양대학교 전자컴퓨터공학부)
  • Published : 2005.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

The single-phase induction motor is simple and durable, but the efficiency is low. Therefore, electric motors like HLDC and LSPM(line-start permanent magnet motor) that use the permanent magnet have been studied. The most advantages of single-phase LSPM is having the same stator as the stator of the single-phase induction motor and permanent magnets are just inserted in the squirrel cage rotor of the single-phase induction motor. But the characteristics of single-phase LSPM synchronous motor has very complex characteristics until the synchronization and if the design is not suitable, the single-phase LSPM synchronous motor cannot be synchronized. We designed a single-phase LSPM using the same stator and winding as the conventional single-phase induction motor, but newly designed the permanent magnets considering air gap magnetic flux density. The transient characteristics of the single-phase LSPM is not good because of a magnetic breaking torque, however, it can be improved by redesigning the rotor bars. We are proposed the design method of rotor bar for the single-phase LSPM to start softly and to make synchronization easily.

Keywords

References

  1. I. Boldea, S. A. Nasar, 'Unified Analysis of 1-phase AC Motors Having Capacitors in Auxiliary Windings', IEEE Trans. Energy Conversion, Vol. 14, No. 3, pp. 577-582, 1999 https://doi.org/10.1109/60.790917
  2. Juliette Soulard, H-Peter Nee 'Study of the Synchronization of Line-Start Permanent Magnet Synchronous Motors' Industry Applications Conference, Vol. 1, pp. 424-431, 2000 https://doi.org/10.1109/IAS.2000.881145
  3. Knight, A. M, Salmon, ; J. C. 'Modeling the Dynamic Behaviour of Single-phase Line Start Permanent Magnet Motors' Industry Applications Conference, Thirty-Fourth IAS Annual Meeting. Conference, Vol. 1, pp. 2582-2588, 1999 https://doi.org/10.1109/IAS.1999.799203
  4. E. S. Hamdi, Design of Small Electrical Machines, JOHN WILEY & SONS, 1994
  5. P. C. Sen, Principles of Electric Machines And Power Electronics, JOHN WILEY & SONS, 1997
  6. 오시덕 외. '3.7kW급 유도성 기동 영구자석 매입형 동기전동기 기술개발에 관한 연구 최종보고서', 산업자원부, 2002.10
  7. 원종수 역, 전기 설계학, 동일 출판사, 1994