Software implementation of self-tuning controllers

Abstract

This chapter deals mainly with software implementation of selected digital self-tuning control algorithms into the Matlab and Pascal environment for the purpose of possible industrial utilization. The work was motivated by co-operation with a manufacturer of aluminium-based rolled products and packaging materials. His project has supposed primarily the application of discrete-time adaptive compensator to control of a metal smelting furnace. Other requirements were the plant model with ?a2b3? structure and final implementation in Borland Pascal (because of integration into the existing system). However the paper presents not only derived relations applicable to Pascal environment but also program for simulative purposes and testing created under Matlab and some preliminary simulation results. In the first stage, the applied methods have included a polynomial approach to discrete-time control design and recursive least-squares identification algorithm LDDIF, but subsequently also two alternative techniq