대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1999년도 하계학술대회 논문집 A
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- Pages.73-75
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- 1999
인버터 구동 유도전동기의 회전자 바에서의 동손 분포 해석
Analysis of the Copper Loss Distribution in the Rotor Bar of an Inverter-Fed Induction Motor
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Kim, B.T.
(Dept. of Electrical Engineering, Hanyang University) ;
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Kwon, B.I.
(Dept. of Electrical Engineering, Hanyang University) ;
- Park, S.C. (RIET)
- 발행 : 1999.07.19
초록
The time harmonics of an inverter output voltage cause high frequency currents in the rotor bars of a squirrel cage induction motor, so that the harmonic copper loss density increases in the upper lesion of the bars. Such an higher loss density makes an nonuniform thermal source and deforms the bars due to the thermal stress. Therefore, in this paper, the copper loss distribution in the rotor bar of an inverter-fed induction motor, which is the source of the thermal stress, is analyzed by the time-stepping finite element method. As a result, the harmonic copper losses of 11 subregions in a bar are calculated and compared with those of sinusoidally fed induction motor.
키워드