Authors : S. Rajendran and S. Palani
Abstract: This study deals with design of Proportional + Integral (PI) controller, GA based controller for a non-linear liquid spherical tank system. Level control of a spherical tank is a complex issue because of the non-linear nature of the tank. For each stable operating point, a first order process with Time Delay Model was identified using process Reaction Curve Method. The need for improved performance of the process has led to the development of the optimal controllers. GA is an Evolutionary algorithm that is proposed in this aspect. The performance of GA based controllers is compared with conventional controller tuned using Ziegler-Nicholas (Z-N) Method. The comparison is done based on rise time, settling time, overshoot and it was found that the GA based controller is better suited for this process.
S. Rajendran and S. Palani, 2015. GA Based Intelligent Controller for Dynamic System. International Journal of Soft Computing, 10: 189-194.