가변게인 회전자 자속관측기에 근거한 스핀들 유도전동기의 센서리스 속도제어

Sensorless Vector Control of Spindle Induction Motors Using Rotor Flux Observer with a Variable Bandwidth

  • 유재성 (성균관대 메카트로닉스공학과) ;
  • 신수철 (효성중공업연구소) ;
  • 이원철 (성균관대 전기공학과) ;
  • 박상훈 (성균관대 정보통신공학부) ;
  • 원충연 (성균관대 정보통신공학부) ;
  • 이병국 (성균관대 정보통신공학부)
  • 발행 : 2006.10.01

초록

본 논문은 가변게인 회전자 자속관측기를 이용하여 전동기의 영 속도를 포함하는 전 속도대역에서 우수한 성능을 갖는 스핀들 유도전동기의 센서리스 벡터제어기법을 제안하였다. 제안한 유도전동기의 센서리스 속도제어를 위한 고피나스 모델 자속관측기는 전동기의 저속영역에서 추정속도에 따른 가변구조 PI이득을 사용한다. 실험 결과는 제안한 센서리스 알고리즘의 만족스러운 운전 결과를 보여준다.

This paper presents a new speed sensorless vector control scheme of Spindle Induction Motors(SIM) which can be successfully applied to at any speed including even zero speed. The proposed sensorless vector control of SIM uses rotor flux estimator with a variable bandwidth. This approach is based on the Closed-Loop Rotor Flux Observer(CLRFO) which includes a variable bandwidth of the PI controller. For low speed operation, the bandwidth of CLRFO has a variable bandwidth structure according to the estimated rotor velocity. The experimental results show the satisfactory operation of the proposed sensorless algorithm.

키워드

참고문헌

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