A system was developed to allow undergraduate engineering students the capability of simulating various types of control modes in a laboratory environment. The use of digital control and common industrail components such as transducers, recorders, and valves was implemented.
Modification to an existing bench scale process control system is outlined and demonstrated. A computer program was written which interfaces with the hardware and data acquisition software allowing the user many options to study control processes under a variety of conditions. A wide range of parameters can be selected. System parameters can be saved on disk or printed directly. Data are also sent to a graphics program.
Three control modes, Proportional, Proportional - Integral and Proportional - Integral - Derivative, were tested. Porportional mode had a damped voltage, but the level was offset from the reference level. Adding integral control eliminated offset, but the voltage was less damped. The inclusion of derivative decreased the amount of overshoot and undershoot.
Klee, Harold I.
Master of Science (M.S.)
College of Engineering
Length of Campus-only Access
Masters Thesis (Open Access)
Orlando (Main) Campus
Dissertations, Academic -- Engineering; Engineering -- Dissertations, Academic
Lytle, Barbara Viehman, "Direct digital control of a liquid level control unit" (1988). Retrospective Theses and Dissertations. 4309.