Variable magnetization pattern machines

  title={Variable magnetization pattern machines},
  author={Ryoko Imamura and Teng Wu and Robert D. Lorenz},
  journal={2017 IEEE International Electric Machines and Drives Conference (IEMDC)},
This paper presents variable magnetization pattern machines that have a capability to control the spatial property of magnetization patterns in permanent magnets by intentional dynamic demagnetization during operation. These machines can effectively reduce the unwanted property caused by the spatial harmonic magnetic flux density, such as the iron losses and torque ripple, since they can greatly reduce the source of the harmonics in the rotor magnetomotive force (MMF). The principle of… CONTINUE READING
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