FEEDBACK STABILIZATION OF THE OPERATION OF AN HYBRID CHEMICAL PLANT

This paper deals with the feedback stabilization of the operation of a simple hybrid chemical plant at an optimally scheduled operation. The optimally scheduled plant operation is obtained as a solution of a cyclic discrete time scheduling optimization problem and it is open loop unstable. The goal is to illustrate how the stability problem of an hybrid chemical process can be solved by using simple P and PI – like control laws. The sensitivity of the closed loop plant operation to the choice of the controllers parameters is also presented.