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Feedback Stabilization of Switching Discrete-Time Systems via Lie-Algebraic Techniques | IEEE Journals & Magazine | IEEE Xplore

Feedback Stabilization of Switching Discrete-Time Systems via Lie-Algebraic Techniques


Abstract:

This technical note addresses the stabilization of switching discrete-time linear systems with control inputs under arbitrary switching. A sufficient condition for the un...Show More

Abstract:

This technical note addresses the stabilization of switching discrete-time linear systems with control inputs under arbitrary switching. A sufficient condition for the uniform global exponential stability (UGES) of such systems is the existence of a common quadratic Lyapunov function (CQLF) for the component subsystems, which is ensured when the closed-loop component subsystem matrices are stable and generate a solvable Lie algebra. The present work develops an iterative algorithm that seeks the feedback maps required for stabilization based on the previous Lie-algebraic condition. The main theoretical contribution of the technical note is to show that this algorithm will find the required feedback maps if and only if the Lie-algebraic problem has a solution. The core of the proposed algorithm is a common eigenvector assignment procedure, which is executed at every iteration. We also show how the latter procedure can be numerically implemented and provide a key structural condition which, if satisfied, greatly simplifies the required computations.
Published in: IEEE Transactions on Automatic Control ( Volume: 56, Issue: 5, May 2011)
Page(s): 1129 - 1135
Date of Publication: 17 January 2011

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