Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Nonlinear State Observer for Sensorless Hybrid-type LPM

센서없는 하이브리드형 선형 펄스모터를 위한 비선형 상태관측기 설계

  • Choi, Dong-Soo (School of Electrical Engineering Seoul National University) ;
  • Kim, Tae-Han (School of Electrical Engineering Seoul National University) ;
  • Kim, Yang-O (School of Electrical Engineering Seoul National University) ;
  • Ha, In-Joong (School of Electrical Engineering Seoul National University) ;
  • Kim, Moon-Hwan (Power Plant Control Team, Korea Electrotechnology Research Institute)
  • 최동수 (서울대학교 공과대학 전기공학부) ;
  • 김태한 (서울대학교 공과대학 전기공학부) ;
  • 김양오 (서울대학교 공과대학 전기공학부) ;
  • 하인중 (서울대학교 공과대학 전기공학부) ;
  • 김문환 (한국 전기연구소 발전제어팀)
  • Published : 1997.11.29
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Abstract

This paper describes a nonlinear state observer to identify the rotor position and velocity of a hybrid-type linear pulse motor(LPM). Since the observer's error dynamics of a hybrid-type LPM is highly nonlinear, the stability of the proposed observer is analyzed using an approximated error model. The optimal choices of the proposed observer gains are also discussed. Our extensive simulation study shows that the proposed observer can identify rotor position and velocity and is robust with respect to uncertainties in mechanical parameters and load force.

Keywords