OBSERVERS FOR A CLASS OF CONTINUOUS TANK REACTORS VIA TEMPERATURE-MEASUREMENT

This paper deals with the state (chemical species concentration) estimation in stirred tank reactors when only reactor temperature is measured. The central idea is to construct a high-gain Luenberger observer based on a controller canonical form for nonlinear dynamics. It is shown that the observer is robust against bounded model deviations (both parametric and nonmodeled dynamics). A simulation example illustrates the performance of the observer.