Title :
Robust gain-scheduled aircraft longitudinal controller design using an ℋ∞ approach
Author :
Lin, Zhe ; Khammash, Mustafa
Author_Institution :
Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
A robust gain-scheduled controller is designed for the longitudinal attitude control of a light commercial aircraft using an ℋ∞ approach. Following a model reduction procedure that exploits the optimal controller structure, linear time-invariant controllers designed at the selected equilibrium points are reduced to second order controllers and realized in a feedback path configuration that is amenable to scheduling. A gain-scheduling law is developed and simulation results verify that the closed-loop performance specifications are met
Keywords :
H∞ control; aircraft control; attitude control; closed loop systems; control system synthesis; feedback; linear systems; robust control; scheduling; ℋ∞ control; LTI controllers; closed-loop performance specifications; feedback path configuration; gain scheduling law; light commercial aircraft; linear time-invariant controllers; longitudinal attitude control; optimal controller; robust gain-scheduled aircraft longitudinal controller design; second-order controllers; selected equilibrium points; Aerospace control; Aircraft propulsion; Feedback; Lighting control; Optimal control; Poles and zeros; Reduced order systems; Robust control; Robust stability; Scheduling;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.946296
