Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2014.11a
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- Pages.33-34
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- 2014
Analysis of Inverter Losses of Brushless DC Motor According to PWM Method and Power Devices
BLDC 모터의 PWM 방법과 파워소자에 따른 인버터 손실분석
- Nam, Myung Joon (Korea National University of Transportation) ;
- Cho, Kwan Yuhl (Korea National University of Transportation) ;
- Kim, Hag Wone (Korea National University of Transportation) ;
- Eum, Sang Joon (LG Electronics) ;
- Kim, Young Jin (LG Electronics) ;
- Kim, Ki Man (LG Electronics)
- 남명준 (한국교통대학교 제어계측공학과) ;
- 조관열 (한국교통대학교 제어계측공학과) ;
- 김학원 (한국교통대학교 제어계측공학과) ;
- 엄상준 (LG전자) ;
- 김영진 (LG전자) ;
- 김기만 (LG전자)
- Published : 2014.11.28
Abstract
In this paper, the inverter switch losses of BLDC motor for three types of PWM method and power devices was analyzed. When BLDC motor is driven at low currents, inverter switch losses for MOSFET is low because MOSFET operates like resistance. But, inverter switch losses for IGBT is higher than MOSFET due to its large turn-off losses. For low power inverter with MOSFET, the power losses of unified PWM is lower than that of unipolar and bipolar PWM.
Keywords