The Transactions of the Korean Institute of Electrical Engineers D (대한전기학회논문지:시스템및제어부문D)

The Korean Institute of Electrical Engineers (대한전기학회)
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Performance Improvement of BLDC Motor Speed Control Using Hybrid PWM Method

하이브리드 PWM 방식을 이용한 브러시리스 직류 전동기의 속도 제어 성능 향상

  • 이동훈 (강원대학교 제어계측공학과) ;
  • 오태석 (강원대학교 제어계측공학) ;
  • 전성구 (강원대학교 제어계측공학) ;
  • 김일환 (강원대학교 전기전자정보통신공학) ;
  • 남부희 (강원대학교 전기전자정보통신공학부)
  • Published : 2004.07.01
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Abstract

This paper considers a hybrid PWM(pulse width modulation) method which can be used in the brushless DC motor controller. Due to many disadvantages of bipolar PWM method, unipolar PWM method is mostly used in industrial field. In constant speed control application, the unipolar PWM method shows the good performance of speed control. But in the wide range of speed control application, it shows poor performance especially when deceleration is needed. So we propose the hybrid PWM method that utilizes both of bipolar and unipolar PWM methods according to the sign of the speed controller output. Simulation and experimental result show that the proposed method improves speed control performance of the brushless DC motor which is applied to the industrial sewing machines.

Keywords

References

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