Automatica, Vol.36, No.7, 1067-1074, 2000
Switching control of H-infinity gain scheduled controllers in uncertain nonlinear systems
In this paper, we propose a switched H-infinity gain scheduled controller for uncertain nonlinear systems with exogenous signals. Each controller is constructed at a distinct and fixed value of exogenous signals using H-infinity synthesis methodology. Then the constructed controller set is switched according to the proposed switching scheme for the wide range of variation of exogenous signals. Moreover, it is shown that the switched control system guarantees stability during every switching.
Keywords:exogenous signals;H-infinity gain scheduled controller;switching control;electromagnetic suspension (EMS) system