Seminar Details
2013-02-12 (14.00) : Control of a reactor (to produce bioethanol) with discrete-delayed measurements
At Euler building
Organized by Mathematical Engineering
Speaker :
Hector Hernandez Escoto (Universidad de Guanajuato (Mexico))
Abstract :
In this talk, the problem of controlling a continuous stirred tank fermenter of discrete-delayed measurements will be addressed.
The reactor is one to produce ethanol, and although this class of processes have been developed and industrially implemented since several
decades ago, the challenge of maintaining design conditions keeps, for ensuring production rates. In practical scenarios, these reactors
are operated on the basis of discrete-delayed measurements, provided by laboratory analysis of reacting mixture samples, taken out at certain instants.
Then, the design of a control system, following an input-output linearization approach, will be given taking in account the discrete-delayed
measurements; the design includes the following aspects: (i) characteristics of the dynamic behavior of the reactor, (ii) feasible control
configurations since instrumentation infrastructure, (iii) construction of control systems, (iv) a systematic scheme of tuning from a
pole-assignment approach, and (v) a discussion about the trade-off between sampling interval and convergence rate, since an analytical point of view
provided by a convergence analysis. Results will be illustrated with simulated cases, with a validated model of an industrial reactor.