Abstract
A first multivariable control experiment is described for the teaching of control. The different processes which can be used in the experiment are simulated with inexpensive analog components. Computer aided control system design packages (CADCS) are used extensively to derive controllers for these multivariable processes. The designed controllers are initially simulated in closed-loop form using CADCS packages with interactive graphics, and then implemented on IBM PC compatibles to verify their effectiveness in the control of the analog processes. Important phenomena such as multivariable interaction, actuator and process saturation, limit cycling, and reachability are brought out as the students are conducted through the process of controller design and evaluation. Experimental results are given from a typical teaching laboratory exercise on one of the processes.
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