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Linear systems with bounded inputs: global stabilization with eigenvalue placement

✍ Scribed by Rodolfo Suárez; José Álvarez-Ramírez; Julio Solís-Daun

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
132 KB
Volume
7
Category
Article
ISSN
1049-8923

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✦ Synopsis

This work presents a technique for obtaining a bounded continuous feedback control function which stabilizes a linear system in a certain region. If the open-loop system has no eigenvalues with positive real part, the region of attraction of the resulting closed-loop system is all 1L, i.e., the feedback control is a global stabilizer; otherwise, the region contains an invariant ('cylindric-like') set where the controller does not saturate. The proposed control is a linear-like feedback control with state-dependent gains. The gains become implicitly defined in terms of a nonlinear scalar equation. The control function coincides in an ellipsoidal neighbourhood of the origin with a linear feedback law which is a solution of a linear quadratic regulator problem. This design allows eigenvalue placement in a specified region.

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