Model Reference Adaptive Control of a Continuous Polymerization Reactor under Periodic Operation

ELIÇABE, G. E.; MEIRA, G. R.

POLYMER ENGINEERING AND SCIENCE

Año: 1989 vol. 29 p. 374 - 382

0032-3888

This work proposes a cascade model reference adaptive algorithm to control a continuous polymerization reactor, which is operated under forced oscillations of its feeds. The objective is to produce a polymer with desired average values of the average chain length, of the average polydispersity and of the average polymer production; in spite of the fact that some of the model parameters may be unknown and/or may vary slowly with time. This objective is achieved by imposing the first two moments of the number chain length distribution to follow predetermined periodic trajectories. The proposed control scheme is an extension of that by G.E. Elicabe, et al., when the number of independent controls is less than the number of system states. Computer simulations have shown the feasibility of the proposed technique, provided continuous state measurements are available.