외란 관측자를 이용한 BLDC 모터의 강인 제어

Robust Control of Brushless DC Motor Using Disturbance Observer

  • 유병삼 (인하대학교 전기공학과) ;
  • 신두진 (인하대학교 전기공학과) ;
  • 김광영 (인하대학교 전기공학과) ;
  • 허욱열 (인하대학교 전기공학과) ;
  • 김진환 (두원공과대학 컴퓨터 응용제어학과)
  • 발행 : 1999.07.19

초록

This paper proposes a robust control system with the disturbance observer for BLDC servo system. The overall control system is composed of the speed controller which is implemented with PI controller and the disturbance observer with free parameters. The BLDC servo system can improve the closed loop characteristics without affecting the command input response. The characteristics of the closed loop system is improved by suppressing disturbance effectively with the disturbance observer. Measurement noise is also considered by adjusting bandwidth of free parameters. We can overcome the drawbacks of the conventional PI controller. Finally, the performance of the controller is analyzed theoretically and some simulation results are presented to demonstrate the better performance than the conventional PI controllers.

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