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영구자석형 모터의 고정자 철심에서 자계의 거동 및 철손 분석
河京鎬(Kyung-Ho Ha),車相潤(Sang-Yoon Cha),金在寬(Jae-Kwan Kim),洪正杓(Jung-Pyo Hong) 대한전기학회 2006 전기학회논문지 B Vol.55 No.2
This paper investigates the magnetic field behavior and its iron losses in the stator core using electrical steels. The analysis model is a brushless motor with the permanent magnet. The elliptical rotating and alternating flux distributions with non-sinusoidal waveform are obtained by Finite Element Method and then their harmonic components are extracted. Based on these results, the local iron losses in the stator core caused by the harmonic flux are calculated. And then this paper explains the relation between flux waveform and iron loss produced in each part of the stator core. Furthermore, the iron loss at no load condition is measured and compared with the analysis results.