Neural Networks for Modelling and Control of Dynamic Systems - Norgaard, M.

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Résumé :
The technology of neural networks has attracted much attention in recent years. Their ability to learn nonlinear relationships is widely appreciated and is utilized in many different types of applications; modelling of dynamic systems, signal processing, and control system design being some of the most common. The theory of neural computing has matured considerably over the last decade and many problems of neural network design, training and evaluation have been resolved. This book provides a comprehensive introduction to the most popular class of neural network, the multilayer perceptron, and shows how it can be used for system identification and control. It aims to provide the reader with a sufficient theoretical background to understand the characteristics of different methods, to be aware of the pit-falls and to make proper decisions in all situations. The subjects treated include: System identification: multilayer perceptrons; how to conduct informative experiments; model structure selection; training methods; model validation; pruning algorithms. Control: direct inverse, internal model, feedforward, optimal and predictive control; feedback linearization and instantaneous-linearization-based controllers. Case studies: prediction of sunspot activity; modelling of a hydraulic actuator; control of a pneumatic servomechanism; water-level control in a conical tank. The book is very application-oriented and gives detailed and pragmatic recommendations that guide the user through the plethora of methods suggested in the literature. Furthermore, it attempts to introduce sound working procedures that can lead to efficient neural network solutions. This will make the book invaluable to the practitioner and as a textbook in courses with a significant hands-on component.

Sommaire:
1. Introduction.- 1.1 Background.- 1.2 Introduction to Multilayer Perceptron Networks.- 2. System Identification with Neural Networks.- 2.1 Introduction to System Identification.- 2.2 Model Structure Selection.- 2.3 Experiment.- 2.4 Determination of the Weights.- 2.5 Validation.- 2.6 Going Backwards in the Procedure.- 2.7 Recapitulation of System Identification.- 3. Control with Neural Networks.- 3.1 Introduction to Neural-Network-based Control.- 3.2 Direct Inverse Control.- 3.3 Internal Model Control (IMC).- 3.4 Feedback Linearization.- 3.5 Feedforward Control.- 3.6 Optimal Control.- 3.7 Controllers Based on Instantaneous Linearization.- 3.8 Predictive Control.- 3.9 Recapitulation of Control Design Methods.- 4. Case Studies.- 4.1 The Sunspot Benchmark.- 4.2 Modelling of a Hydraulic Actuator.- 4.3 Pneumatic Servomechanism.- 4.4 Control of Water Level in a Conic Tank.- References.