A novel self-tuning control design approach for industrial applications

A real time self-tuning control algorithm was developed to accommodate slow and sudden changes in the plant dynamics. Using a matrix interpolation technique, the controller coefficients are updated based on the changes in the frequency response of the plant so that a predetermined desired loop gain is maintained throughout the operation. The computer algorithms developed here can also be used as a computer aided design (CAD) tool for off-line control design. It replaces a tedious design process with a simple, easy to use, computer algorithm. The new algorithms were tested successfully in both software and hardware in the loop simulation