A direct parameter-error co-design approach of discrete-time saturated LPV systems
Résumé
Considering a discrete-time linear parameter-
varying (LPV) systems with input constraints, the paper
deals with the co-design of a parameter-dependent state-
feedback controller and a new parameter-dependent event-
triggering mechanism. Two independent event-triggering
policies are introduced at the sensor node to economize
the limited network resources. They indicate whether the
current state or the current scheduling parameters should
be transmitted to the controller or not. In this sense, the
controller scheduling parameters can differ from those of
the system, yielding a certain degree of robustness con-
cerning parameter deviations. Sufficient conditions, given
in terms of linear matrix inequalities (LMIs), ensure the re-
gional asymptotic stability of the closed loop. To formulated
them, we use the Lyapunov theory along with the gener-
alized sector condition. Moreover, we formulate a convex
optimization procedure indirectly reducing the transmis-
sion activity over the network. The proposed methodology
effectiveness is attested through numerical examples and
comparisons with related works from the literature.
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