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Adaptive LQG control of positive real systems

✍ Scribed by R. Garrido-Moctezuma; D. A. Suarez; R. Lozano

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
139 KB
Volume
12
Category
Article
ISSN
0890-6327

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✦ Synopsis

An adaptive control law for PR plants is proposed. The main feature of this approach is that the role of adaptation is not to stabilize the plant but to improve performance. The plant is identified using a standard least-squares algorithm and through a suitably defined parameter modification, the plant estimates are constrained to a region in the parameter space corresponding to Positive Real Observable Controllable plants. Using these estimates an adaptive LQG disipative controller is designed which trivialy stabilizes the plant. Simulation results are presented.

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