Constructive MPC of a Class of Exothermic CSTRS

JOSE LUIS FIGUEROA; SILVINA INES BIAGIOLA; JESÚS ALVAREZ

Cancún

Simposio; 8th International IFAC Symposium on Dynamics and Control of Process Systems; 2007

IFAC

In this paper is addressed the problem of controlling a (possible open-loop unstable) CSTR with flow and temperature measurements, with emphasis on the attainment of control robustness, linearity, decentralization, and model independency features. The combination of constructive and MPC ideas yields: (i) an unconstrained controller that is optimal with respect to a meaningful objective function, does not need to the on-line solution of a two-point boundary value problem (TPBVP), and yields the same behavior than the one of a conventional nonlinear MPC, and (ii) a constructive MPC that handles constraints and is simpler and less model dependent than its nonlinear MPC counterpart. The proposed approach is tested with a representative example through simulations.