Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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A New Improved Continuous Variable Structure Tracking Controller For BLDD Servo Motors

브러쉬없는 직접구동 전동기를 위한 새로운 개선된 연속 가변구조 추적제어기

  • Lee, Jung-Hoon (ERI, Dept. of Contr. & Instrum. Eng., Gyeongsang National University)
  • 이정훈 (경상대학교 제어계측공학과, ERI)
  • Published : 2005.07.01
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Abstract

A new improved robust variable structure tracking controller is presented to provide an accurately prescribed tracking performance for brushless direct drive(BLDD) servo motors(SM) under uncertainties and load variations. A special integral sliding surface suggested for removing the reaching phase problems can define its ideal sliding mode and virtual ideal sliding trajectory from an initial position of SM. The tracking error caused by the nonzero value of the sliding surface is derived. A corresponding continuous control input with the disturbance observer is suggested to track a predetermined virtual ideal sliding trajectory within a prescribed value under all the uncertainties and load variations. The usefulness of the proposed algorithm is demonstrated through the comparative simulations for a BLDD SM under load variations.

본 연구에서는 불확실성과 부하 변동 하에 브러쉬없는 직접구동 전동기의 정확한 사전결정 추적성능을 제공하기 위한 새로운 개선된 강인한 가변구조 추적 제어기를 설계하였다. 리칭 페이즈를 제거하기 위한 특수 적분 슬라이딩 변은 서보 전동기의 초기 위치부터 이상 슬라이딩 모드와 가상 이상 슬라이딩 궤적을 정의한다 . 영이 아닌 슬라이딩 면에 의하여 발생되는 추적오차를 유도하였다. 외란 관측기를 갖는 연속 입력을 제안하여 불확실성과 부하 변동 하에 사전 결정 가상 이상 슬라이딩 궤적을 사전 값 내에 추적하도록 한다. 제안된 알고리듬의 유용성을 부하 변동 하에 브러쉬없는 직접구동 전동기에 대한 비교 시뮬레이션으로 입증한다.

Keywords

References

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