Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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An LMI-Based Fuzzy State Feedback Control with Multi-objectives

  • Hong, Sung-Kyung (School of Mechanical & Aerospace Engineering, Sejong University) ;
  • Yoonsu Nam (Department of Mechanical Engineering, Kangwon National University)
  • Published : 2003.01.01
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Abstract

This paper proposes a systematic design methodology for the Takagi-Sugeno (TS) model based fuzzy state feedback control system with multi-objectives. In this investigation, the objectives are set to be guaranteed stability and pre-specified transient performance, and this scheme is applied to a nonlinear magnetic bearing system. More significantly, in the proposed methodology, the control design problems that consider both stability and desired transient performance are reduced to the standard LMI problems. Therefore, solving these LMI constraints directly (not trial and error) lead to a fuzzy state-feedback controller such that the resulting fuzzy control system meets the above two objectives. Simulation and experimentation results show that the Proposed LMI-based design methodology yields not only maximized stability boundary but also the desired transient responses.

Keywords

References

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