Interactive Computer Graphics for Analysis and Design of Control Systems.

Abstract : The purpose of this thesis effort is to continue the work of improving and adding to the iterative graphics control package called ICECAP (Interactive Control Engineering Computer Analysis Package). The main emphasis will be on providing a graphical way of entering the desired system's characteristics into ICECAP versus entering the desired system's open-looped transfer function through the keyboard. This will allow, for example the control engineer the ability to graphically place the desired system's poles and zeros through the use of the cursor control keys of the keyboard. In addition, the option of displaying the locus solution, for the entered OLTF, will be available to the user, with the added capability to add and delete new poles and zeros without deleting the previous computed locus solution. In control engineering, one of the engineer's goals is to control a system. A system is an interconnection of components forming a system configuration which will provide a desired system response (5). The system to be controlled for example may be chemical, electrical, or mechanical. But in order to accurately determine the resulting output of a control system, it requires that the control engineer model this system in the most accurate way possible. Keywords: systems analysis.