Microcomputer based adaptive digital control for slow non-linear processes: least squares approach

Abstract

Determining the tuning coefficients of a classical three term digital controller for slow delay-time processes is a laborious task. The results obtained using the least squares method of determining the tuning coefficients of a classical three term controller, employed for adaptive control of a slow second-order process with delay-lime, are described. The method requires limited and possibly inaccurate information on the parameters of the process. The adaptability of the algorithm is also demonstrated.