Comparison of PI, GMC and DMC Control For Reactor/Flash Unit Process

Résumé fourni par la source

In distillation column, an essential objective of a control system should be to keep product compositions at their desired levels. Since distillation is a very energy intensive process, good control will also lead to minimizing energy cost. This paper presents different control algorithm that have been applied to a reactor/flash unit process. Model predictive control (MPC) is implemented and tested on the model of process. Then follows with a number of comparisons of set point tracking and disturbance rejection performance between DMC (dynamic matrix control), GMC (Generic nodal control) and PI controllers. Despite the fact that PI controller is the most popular and robust control, not all industrial processes could be controlled by PI controllers. For multivariable and non-linear processes some advanced controls strategies is necessary to design good controllers.