This article proposes the use of a sliding mode controller based on a first
-order-plus-deadtime model of the system for controlling higher-order chemi
cal processes with inverse response. The controller has a simple and fixed
structure with a set of tuning equations as a function of the characteristi
c parameters of the first order-plus-deadtime model. The controller perform
ance was judged via computer simulations using linear and nonlinear models
of chemical processes with inverse response. (C) 1999 Elsevier Science Ltd.
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