Journal of Mechanical Science and Technology

  • 제17권3호
  • /
  • Pages.329-335
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  • 2003
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  • 1738-494X(pISSN)
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  • 1976-3824(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

Frequency Domain Properties of EALQR with Indefinite Weighting Matrix

  • Seo, Young-Bong (School of Mechanical Engineering and Research Institute of Mechanical Technology Pusan National University) ;
  • Park, Jae-Weon (School of Mechanical Engineering and Research Institute of Mechanical Technology Pusan National University)
  • 발행 : 2003.03.01
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초록

EALQR (Linear Quadratic Regulate. design with Eigenstructure Assignment capability) has the capability of exact assignment of eigenstructure with the guaranteed margins of the LQR for MIMO (Multi-Input Multi-Output) systems. However, EALQR undergoes a restriction on the state-weighting matrix Q in LQR to be indefinite with respect to the region of allowable closedloop eigenvalues. The definiteness of the weighting matrix is closely related to the robustness property of a given system. In this paper, we derive a relation between the indefinite weighting matrix Q and the robustness property for EALQR. The modified frequency domain inequality, that could be guaranteed by EQLQR with an indefinite weighting matrix, is presented.

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참고문헌

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