Output-Error Criteria in Multi-Model Adaptive Control with Experimental Application to pH Control

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Boling JM, Gustafsson TK, Haggblom KE
Publication year: 2008
Journal: International Conference on Control Applications
Journal acronym: IEEE INTL CONF CONTR
Start page: 745
End page: 750
Number of pages: 6
ISSN: 1085-1992


The use of output-error criteria in a multi-model adaptive PID controller is developed and evaluated in an experimental study using a nonlinear pH neutralization process. Variable hysteresis depending on model distance is included in the model switching. The performance and robustness characteristics of the multi-model controller are compared to those of a conventional PID controller, conventional self-tuning controller, and a multi-model adaptive KID controller using a prediction-error criterion. Both the output-error criterion and especially the variable hysteresis were found to be significant factors in the performance of the multi-model adaptive controller.

Last updated on 2020-30-03 at 06:39