Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Frequency domain properties of EALQR with indefinite Q

비한정 Q를 갖는 EALQR의 주파수역 특성 해석

  • Seo, Yeong-Bong (Mechanical Technology Research Center, Dept.of Mechanical Engineering, Busan National University) ;
  • Choe, Jae-Won (Mechanical Technology Research Center, Dept.of Mechanical Engineering, Busan National University)
  • 서영봉 (부산대학교 기계공학부 및 기계기술연구소) ;
  • 최재원 (부산대학교 기계공학부 및 기계기술연구소)
  • Published : 1999.08.01
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Abstract

A study which develops a controller design methodology that has flexibility of eigenstructure assignment within the stability-robustness contraints of LQR is requried and has been performed. The previously developd control design methodology, namely, EALQR(Eigenstructure Assignment/LQR) has better performance than that of conventional LQR or eigenstructure assignment but has a constraint for the weitgting matrix in LQR, which could be indefinite for high-order system. In this paper, the effects of the indefinite Q in EALQR on the frequency domain properties are analyzed. The robustness criterion and quantitative frequency domain properties are also resented. Finally, the frequency domain properties of EALQR has been analyzed by applying to a flight control system design example.

Keywords

References

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