Robust gain scheduling method based on fuzzy logic control and LMI methods = 퍼지논리제어와 LMI 기법을 이용한 강인 게인 스케쥴링

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In this paper, a practical gain-scheduling control law to consider robust stability and performance of systems with nonlinearity and uncertainty is presented. The method is based on Linear Parameter Varying(LPV) systems which result in a controller which is scheduled with time-varying parameter describing possible dynamics of the plant. The proposed method introduces LMI-based pole placement synthesis to consider the robust stability and performance with respect to structured uncertainties. For the robust stabilization of gain-scheduled controller, it also utilizes recently developed fuzzy control system which is based on Takagi-Sugeno’s fuzzy model. Then, the sufficient conditions for robust controller design of linearized local dynamics and robust stabilization of fuzzy control systems are reduced to solve a finite set of Linear Matrix Inequalities(LMIs), and they are solved in conjunction with co-evolutionary algorithm which is developed to solve saddle-point problems. For the validity and applicability of this method, this paper develops a gain-scheduled longitudinal controller for a high performance aircraft and demonstrates linear and nonlinear simulation results.
Advisors
Tahk, Min-Jearesearcher탁민제researcher
Description
한국과학기술원 : 항공우주공학전공,
Publisher
한국과학기술원
Issue Date
2001
Identifier
166321/325007 / 000983030
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 항공우주공학전공, 2001.2, [ v, [69] p. ]

Keywords

LMI pole placement; fuzzy control system; co-evolutionary algorithm; 공진화 알고리듬; LMI 극점 배치; 퍼지 제어 시스템

URI
http://hdl.handle.net/10203/26885
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=166321&flag=dissertation
Appears in Collection
AE-Theses_Master(석사논문)
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