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Adaptive control using multiple models. (English) Zbl 0869.93025
This paper explores possibilities for intelligent control whereby a controller has the ability to operate in multiple environments by recognizing which environment is currently active and responding to it appropriately. Such an intelligent controller must be able to adapt rapidly to any unknown but constant operating environment. The authors of this paper present a general approach to intelligent control which uses multiple models, switching and tuning. Their proposal for adaptive control uses different switching and tuning schemes which combine fixed and adaptive models in unusual ways. The authors illustrate the effectiveness of their methods using a model reference adaptive controller of a linear time-invariant system. In this case, they prove stability of the switching and tuning schemes. Simulation results are also provided which show how the authors’ methods can improve the performance of conventional adaptive control systems.

MSC:
93C40 Adaptive control/observation systems
93D21 Adaptive or robust stabilization
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