Robust LQR control for stall flutter suppression: A polytopic approach*. Issue 1 (July 2017)

• Record Type: Journal Article
• Authors: Niel, Fabien; Seuret, Alexandre; Zaccarian, Luca; Fagley, Casey
• Is Part Of: IFAC-PapersOnLine. Volume 50:Issue 1(2017)
• Page Start: 11367
• Page End: 11372
• Publication Date: 2017-07
• Subjects: Robust control applications -- Uncertain dynamic systems -- Robust linear matrix inequalities; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2017.08.2041
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: In this paper, a robust Linear Quadratic Regulator (LQR) of a NACA 0018 wing with a flap actuator is developed for stall flutter suppression. The nonlinear and switched set of equations of the aeroelastic model is detailed and conveniently expressed as a polytopic uncertain system. A Linear Matrix Inequalities (LMIs) formulation of the LQR problem in the presence of uncertainties is used for the control design. Simulation results confirm the desirable behavior of the arising closed-loop system.