A study on iron loss analysis method considering the harmonics of the flux density waveform using iron loss curves tested on epstein samples

Nam, Hyuk; Ha, Kyung-Ho; Lee, Jeong-Jong; Hong, Jung-Pyo; Kang, Gyu-Hong

doi:10.1109/tmag.2003.810198

Cited by 63 publications

(1 citation statement)

References 4 publications

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“…For the confirmation of low core loss on the stator core shape design, the analysis technique, which can obtain the detailed core loss distribution of a stator core, is required. Although there have been investigations into the calculation of the core loss of a motor, those techniques can obtain total core loss but cannot obtain core loss distributions [14][15][16][17][18]. Furthermore, although core loss distribution is obtained in [19], it is not taking into consideration the rolling direction of the steel sheet.…”

Section: Introductionmentioning

confidence: 99%

Stator Core Shape Design for Low Core Loss and High Power Density of a Small Surface-Mounted Permanent Motor

Soda

Enokizono²

2020

Sensors

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In this paper, a stator core shape design method is proposed for an improvement in the power density of a small surface-mounted permanent magnet (SPM) motor. In order to improve the power density of a motor, it is necessary to increase its torque or reduce its weight. However, when a stator core shape is miniaturized to reduce the weight of the motor, the winding regions in a motor frequently decrease. Our stator core shape design method improves the power density of a motor by reducing its weight without decreasing the torque and keeping the winding regions constant. Moreover, the core loss of a motor also decreases when using our method. A Bezier curve is used for the determination of a stator core shape. The finite element method in consideration of the vector magnetic properties is used to evaluate the core loss of the motor shaped by our method. As a result, the power density of an SPM motor is improved, and the core loss of the motor decreases.

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