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

The Korean Institute of Power Electronics (전력전자학회)
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Characteristics Analysis of Segmental Rotor Type 3-Phase SRMs

분절회전자형 3상 SRM의 특성해석

  • Xu, Zhenyao (Dept. of Mechatronics Engineering, Kyungsung Univ.) ;
  • Lee, Dong-Hee (Dept. of Mechatronics Engineering, Kyungsung Univ.) ;
  • Ahn, Jin-Woo (Dept. of Mechatronics Eng., Kyungsung Univ.)
  • Received : 2015.09.25
  • Accepted : 2015.11.17
  • Published : 2016.02.20
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Abstract

In this study, two types of switched reluctance motors (SRMs) with segmental rotors are presented in detail. The first is a 6/5 segmental rotor type, whereas the second is a 12/8 segmental rotor type. Both motor types have the same stator, rotor, and winding configurations. The stator is constructed with special stator poles, namely, exclusively designed exciting and auxiliary poles. The rotor is constructed from a series of discrete segments, each of which is embedded into the nonmagnetic isolator. The windings are only wound on the exciting poles, and no winding is wound on the auxiliary poles. Given these configurations, short flux paths and high flux-linkage utilization rate are achieved in the proposed motors, which may reduce the magnetomotive force requirement and increase the electrical utilization of a machine. To verify the effectiveness of the proposed motors, their characteristics, such as magnetic flux distribution, flux-linkage, torque, radial force, and efficiency, are analyzed and compared with those of a conventional 12/8 SRM. Meanwhile, two prototypes, one for each proposed segmental rotor type, are also designed and manufactured. Finally, the validity of the proposed motors is further verified by test results.

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References

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