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A New PWM Technique of a Two-Phase Brushless DC Motor Drive with the Switching Loss Reduction스위칭 손실 저감을 위한 2상 BLDC 전동기 드라이브의 새로운 PWM 기법
- Other Titles
- 스위칭 손실 저감을 위한 2상 BLDC 전동기 드라이브의 새로운 PWM 기법
- Authors
- 권병일
- Issue Date
- Apr-2012
- Publisher
- 대한전기학회
- Citation
- 2012년도 대한전기학회 전기기기 및 에너지변환시스템부문회 춘계학술대회 논문집, v. , no. , pp.24 - 26
- Journal Title
- 2012년도 대한전기학회 전기기기 및 에너지변환시스템부문회 춘계학술대회 논문집
- Start Page
- 24
- End Page
- 26
- Abstract
- An improved PWM technique is presented for a two-phase brushless DC (TP-BLDC) motor fed by a two-phase eight-switch inverter. Based on traditional three-phase BLDC motors, the mathematical model of TP-BLDC motor with sinusoidal back-emfs is introduced. A two-phase BLDC motor with two hall sensors is studied for the low cost application of motor drives. To simply the drive algorithm and fast its application, the principle of current commutation for two-phase BLDC motor drives is analyzed in 180 degree conduction mode, and a further improved PWM scheme is proposed to reduce the switching loss of two-phase eight-switch inverter. Effectiveness of the proposed PWM method is verified through the experiments.
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