Title :
Switching in nonminimum phase systems: applications to a VSTOL aircraft
Author :
Oishi, M. ; Tomlin, C.
Author_Institution :
Hybrid Syst. Lab., Stanford Univ., CA, USA
Abstract :
We model the longitudinal dynamics of a VSTOL aircraft as a nonlinear hybrid system with three modes corresponding to typical aircraft behavior. Due to the nonminimum phase property of the aircraft, exact feedback linearization will not stabilize the aircraft. Using dynamic extension, approximate feedback linearization provides a stabilizing control in each mode. We show that the system will track with bounded error in each mode as well as across mode switches. Two examples of common VSTOL manoeuvres demonstrate the effectiveness of the switched control scheme
Keywords :
aircraft control; feedback; linearisation techniques; nonlinear control systems; nonlinear dynamical systems; stability; tracking; VSTOL aircraft; aircraft behavior; approximate feedback linearization; dynamic extension; exact feedback linearization; longitudinal dynamics modelling; nonlinear hybrid system; nonminimum phase system switching; Aerodynamics; Aerospace control; Control system analysis; Control systems; Feedback; Laboratories; Linear approximation; Military aircraft; Nonlinear control systems; Nonlinear dynamical systems;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.878948
