Nonlinear adaptive control

João M. Lemos, Rui Neves-Silva, José M. Igreja

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


Exact linear models are obtained using the technique known as input–output feedback linearization, that is applied to a bilinear finite-dimensional state-space approximation of the dynamics of a distributed collector solar field. A control Lyapunov function is then used to jointly design the adaptation law for the uncertain parameter that measures the mirror efficiency, and the gain of the pole-placement controller. Provided that the plant is represented by the finite-dimensional bilinear model considered, this approaches ensures the stability of the overall controlled system, and that the outlet fluid temperature asymptotically approaches the reference. A reduced complexity controller designed along these lines is obtained and the resulting internal state dynamics is studied. Experimental results on a distributed collector solar field are shown.

Original languageEnglish
Title of host publicationAdvances in Industrial Control
PublisherSpringer International Publishing
Number of pages25
Publication statusPublished - 2014

Publication series

NameAdvances in Industrial Control
ISSN (Print)1430-9491
ISSN (Electronic)2193-1577


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