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New PWM Technique for Two-Phase Brushless DC Motor Drives
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  • New PWM Technique for Two-Phase Brushless DC Motor Drives
  • New PWM Technique for Two-Phase Brushless DC Motor Drives
저자명
Lin. Hai,Kwon. Byung-Il
간행물명
Journal of electrical engineering & technology
권/호정보
2013년|8권 5호|pp.1107-1115 (9 pages)
발행정보
대한전기학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

A new PWM technique for a two-phase BLDC motor fed by a two-phase eight-switch inverter is proposed in this paper. It is well known that a two-phase eight-switch inverter can significantly improve power output compared with a two-phase six-switch inverter in a two-phase motor drive. To drive the two-phase BLDC motor simply and effectively, two normal PWM strategies are investigated to manage speed regulation. However, under the conditions of low speed and light load, especially during the braking process, the current in a short time of one period is near zero, which is a discontinuous waveform every half period. To solve it, a novel PWM technique is investigated to improve the operational performance of normal technique. Using the new PWM scheme, the current continues every half period and the braking performance is improved. The effectiveness of the proposed PWM method is verified through the experiments.