Motor System Integrated Magnetic Multiple Spur Gear and High Speed Motors for Electric Vehicle

Aiso, Kohei; Akatsu, Kan; Aoyama, Yuka

doi:10.1109/ecce44975.2020.9235657

Cited by 8 publications

(1 citation statement)

References 11 publications

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“…The pole pairs of the PMs of the internal and external rotator of the CMG are 4 pairs of poles and 22 pairs of poles, respectively. In addition, it also includes a magnetic regulating ring with 26 pairs of poles, the torque density of the prototype is measured to be 100KN•m/m 3 [9]- [11]. At any time, the internal and external rotator PMs of the structure can participate in the transmission of torque.…”

Section: Introductionmentioning

confidence: 99%

Loss Analysis of Magnetic Gear with Slotted in Magnetic Modulation Ring

Tan

Liu

Rao

et al. 2023

Trans. Electr. Mach. Syst.

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In order to improve the operation efficiency of coaxial magnetic gear (CMG), in this paper, a CMG model with slotted in magnetic modulation ring is proposed. In this model, the permanent magnets (PMs) of internal and external rotors are distributed in Halbach array, the inner rotor PMs are equally divided into 3 small pieces, and the outer rotor PMs are equally divided into 2 small pieces. At the same time, the static magnetic modulation ring iron blocks are slotted, each iron block has 3 slots, the width of the slot is 0.4°, and the depth of the single side slot is 1mm. Finally, a two-dimensional model is established, and the eddy current loss and iron loss of the model are optimized, compared with the conventional CMG model, it is found that the changed pattern can increase the internal and external output torque by 4% and 4.12%, respectively. The eddy current loss is reduced by 66.57%, and the iron loss is reduced by 8.9%, which significantly improve the operation efficiency of the CMG.

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Section: Introductionmentioning

confidence: 99%