Stabilising solutions to a class of nonlinear optimal state tracking problems using radial basis function networks

Ahmida, Z. ; Charef, A. ; Becerra, V. M.

International Journal of Applied Mathematics and Computer Science, Tome 15 (2005) no. 3, pp. 369-381.

Résumé

A controller architecture for nonlinear systems described by Gaussian RBF neural networks is proposed. The controller is a stabilising solution to a class of nonlinear optimal state tracking problems and consists of a combination of a state feedback stabilising regulator and a feedforward neuro-controller. The state feedback stabilising regulator is computed online by transforming the tracking problem into a more manageable regulation one, which is solved within the framework of a nonlinear predictive control strategy with guaranteed stability. The feedforward neuro-controller has been designed using the concept of inverse mapping. The proposed control scheme is demonstrated on a simulated single-link robotic manipulator.

Détail

Keywords: nonlinear systems, optimal control, radial basis functions, neural networks, predictive control, feedforward control
Mots-clés : system nieliniowy, sterowanie optymalne, radialna funkcja bazowa, sieć neuronowa, regulacja predykcyjna, sterowanie wyprzedzające

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