Designing MIMO PIID controller using colonial competitive algorithm: Applied to distillation column process

In this paper, a colonial competitive algorithm is applied to the problem of designing a multivariable PID controller. The goal is to design a controller to decouple the controlled process, and to track the desired inputs by outputs of the process as much as possible. The method is used to design a multi variable controller for a typical distillation column process. Also a GA and an analytical method are used to design the controller parameters. Comparison results among these methods show that the controller obtained by colonial competitive algorithm has better performance than the others.