A Loss Reduction of Dual Air-gap Surface-mounted Permanent Magnet Synchronous Motor

Heidari, Reza; Ahn, Jin-Woo; Kang, Donghyuk; Jeong, Kwang-Il

doi:10.1109/icems56177.2022.9982830

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…By increasing the energy stored in the air gap, more power can be converted, resulting in improved performance. The DS structure is an effective technique Machines 2023, 11, 717 2 of 13 for achieving this, as it allows for a more efficient distribution of the air-gap magnetic flux, resulting in higher torque density and lower torque ripples [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Characteristics of Dual-Air-Gap Surface Permanent Magnet Synchronous Motor

Jeong

Heidari

Kang³

et al. 2023

Machines

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This paper introduces a novel dual-air-gap surface permanent magnet synchronous motor (DAG-SPMSM) and investigates its electromagnetic characteristics. The motor comprises two stators (inner and outer) and a single rotor with permanent magnets on both sides (inner and outer). The magnets are arranged in a zig-zag configuration to isolate the inner and outer stator and rotor magnets. Additionally, a magnetic shield is incorporated into the rotor to further isolate the rotor magnetic flux, which results in a localized short flux path that can reduce core loss. The insertion of the magnetic shield also affects the flux path, reducing torque ripple. The electromagnetic characteristics, such as flux path, flux density, and torque, are analyzed using finite element analysis. The effectiveness of using a magnetic screen is also evaluated, and simple experiments are conducted to validate the observed characteristics of the proposed motor.

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Section: Introductionmentioning

confidence: 99%