Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1992.07b
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- Pages.685-688
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- 1992
Analysis of the Commutation Phenomenon in Brushless DC Motor with Hysteresis Current Regulator
히스테리시스 전류제어기 구동 BLDCM의 전류(轉流)현상 해석
- Kang, Seog-Joo (Dept. of Elec. Eng., Seoul Nat'l. Univ.) ;
- Kim, Gwang-Heon (Dept. of Elec. Eng., Seoul Nat'l. Univ.) ;
- Won, Jong-Soo (Dept. of Elec. Eng., Seoul Nat'l. Univ.)
- Published : 1992.07.23
Abstract
This paper studies the commutation phenomenon in the Brushless DC Motor with the trapezoidal BEMF waveform. It is shown that the torque ripple am the speed ripple due to the phase commutation depend on driving sytem, operating speed am load condition. The effects of resistance and BEMF flat width on torque ripple are considered. Speed - torque characteristics of the motor is presented considering the phase commutation. Uncommutating current control method can attenuate the torque ripple in the low speed region, and also minimize the switching loss am switching frequency. In this paper, the commutation phenomena are verified by analytical formulation and simulation.
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