Nonlinear control with linearized models and neural networks

• Main Authors: Hussain, Mohd Azlan, Allwright, J.C., Kershenbaum, L.S.
• Format: Conference or Workshop Item
• Published: IEE 1995
• Subjects: TA Engineering (General). Civil engineering (General); TP Chemical technology
• Online Access: http://eprints.um.edu.my/7099/; http://www.scopus.com/inward/record.url?eid=2-s2.0-0029210291&partnerID=40&md5=8d9eba3baeeb805273478758fdb0a9b1

A nonlinear control strategy involving a geometric feedback controller and adaptive approximation of the plant is presented. The plant is approximated by a linearized model and a neural network which approximates the higher order error terms. Online adaptation of the network is performed using steepest descent with a dead zone function. The proposed strategy is applied to two case studies for output tracking of set points. The results show good tracking comparable with utilizing the actual model of the plant (usually unknown) and better than that obtained when using the linearized model alone.