The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Comparative Study on the Structural Characteristics of the Novel Two-Phase 8/6 Switched Reluctance Machine

새로운 2상 8/6 SRM의 구조적 특성에 관한 비교 연구

  • Lee, Cheewoo (Dept. of Electrical and Computer Engineering, Pusan National University) ;
  • Hwang, Hongsik (Dept. of Electrical and Computer Engineering, Pusan National University) ;
  • Oh, Seok-Gyu (Dept. of Mechatronics Engineering, Gyeongnam National University of Science and Technology)
  • Received : 2016.11.25
  • Accepted : 2017.01.10
  • Published : 2017.02.01
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Abstract

This study presents a novel two­phase eight stator poles and six rotor poles (8/6) switched reluctance machine (SRM) that can compensate for the vibration and noise problems of two­phase 6/3 SRM and compare the characteristics of two SRMs. In the case of two­phase 6/3 SRM, the short flux path and the flux direction inside the stator are not reversed, so they have high efficiency characteristics. However, the use of three rotor poles causes problems of vibration and noise because the radial force applied to the rotor poles is not balance. The proposed two­phase 8/6 SRM has advantages of 6/3 SRM such as the flux­reversal­free stator and it can improve vibration and noise by using six rotor poles due to balanced radial force acting on the rotor poles. In order to make a reasonable comparison between two SRMs, the electromagnetic field structure of 8/6 SRM is designed to have equivalent torque characteristic to 6/3 SRM and then the copper loss and core loss are compared and analyzed. Finally, we compare the effieicney of two SRMs using finite element analysis and compare the distribution of radial force acting on the rotor poles based on Maxwell's stress method.

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References

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