A Coaxial Magnetic Gear With Halbach Permanent-Magnet Arrays

@article{Jian2010ACM,
  title={A Coaxial Magnetic Gear With Halbach Permanent-Magnet Arrays},
  author={Linni Jian and K. T. Chau},
  journal={IEEE Transactions on Energy Conversion},
  year={2010},
  volume={25},
  pages={319-328}
}
This paper proposes a coaxial magnetic gear that offers higher torque density, lower cogging torque, and lower iron losses than its counterparts. The key is to newly employ a Halbach permanent-magnet (PM) array to constitute the PM poles in the inner rotor and a partial Halbach array (two segments per pole) for the outer rotor. The corresponding magnetic field distributions, torque transmission, and torque ripples are analytically discussed. Then, the corresponding performances are… CONTINUE READING

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