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控制理论与应用 2008
Decentralized adaptive output feedback control for time-varying interconnected systems
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Abstract:
For a class of time-varying interconnected systems with dynamic and static interconnections and unmodelled dynamics, by introducing input filters and a series of coordinate changes, a design scheme of decentralized adaptive output feedback controller is given. It is proved that when the variation rates of time-varying parameters belong to L1 TL1, disturbances will belong to L2 TL1, and the magnitude of the unmodeled dynamics is varying in some ranges. The stability of the closed-loop system is proved, and the output of each subsystem converges to zero. A simulation example demonstrates the effectiveness of the control scheme.