Some remarks on the robustness of adaptive pole assignment


Polderman, J.W. and Mareels, I.M.Y. (1991) Some remarks on the robustness of adaptive pole assignment. In: 30th IEEE Conference on Decision and Control, 1991, 11-13 Dec 1991, Brighton, UK (pp. pp. 760-761).

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Abstract:The properties of a closed-loop system, subject to bounded disturbances, are analyzed when a pole placement control law is implemented on the basis of a model that cannot be falsified by the resulting input/output data. Such models are the best that can be obtained from any identification method driven by the prediction error in the closed-loop and given the uncertainty on the disturbance. In the absence of disturbances such a model would give to rise to closed-loop behavior as if the poles are assigned. However, if the presence of arbitrary small disturbances is assumed, such a result does not even hold approximately and only stability can be guaranteed; pole placement cannot be achieved. As a consequence, the system behavior is not continuous in the magnitude of the upper bound of the disturbances
Item Type:Conference or Workshop Item
Copyright:©1991 IEEE
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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