A design of gain-scheduled control for a linear parameter varying system: an application to flight control

For multi-input-multi-output, multi-parameter, nonlinearly parameter-depend ent linear parameter-varying systems, a gain-scheduled control design metho d using both minimum sensitivity eigenvalue assignment and quadratic stabil ity check is proposed. The designed controller guarantees the stability of the closed-loop system and assigns the eigenvalues of the frozen parameter closed-loop LPV system in the prespecified disjointed regions. Fewer contro llers than that of any other method are needed to cover the whole parameter space. The proposed design method is applied to the design of a flight veh icle's back-to-turn (BTT) controller and nonlinear six-degree-of-freedom (6 -DOF) simulations are performed to show its usefulness as a gain-scheduled controller design method. (C) 2001 Published by Elsevier Science Ltd.