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An Adaptive Bilinear Model‐Predictive Control Algorithm for a Plate Heat Exchanger
Author(s) -
Alzahrani A. A.,
Wali M. M. Noor
Publication year - 1994
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500020208
Subject(s) - setpoint , control theory (sociology) , bilinear interpolation , offset (computer science) , model predictive control , controller (irrigation) , computer science , heat exchanger , engineering , algorithm , control (management) , artificial intelligence , mechanical engineering , agronomy , computer vision , biology , programming language
An adaptive bilinear model‐predictive controller having a single tuning parameter, was used to control the temperature for a plate heat exchanger simulation. The parameters of the bilinear model are estimated at each sampling instant via a recursive least‐square method with a variable forgetting factor. The model and the control algorithm are updated accordingly. An algorithm for elimination of steady‐state offset was also implemented. The controller performance was tested for various changes in load and setpoint. It was found that adaptation eliminates the need for a filter. The controller performance was found to be excellent when the steady‐state offset compensator algorithm was implemented.