Interpreting specifications for control system design

Abstract

Current control theories require control specifications to be posed in a very specific manner, which is often not easily obtained from the specifications posed on the system. The goal of this project report is to develop a method that is capable of evaluating the set of specifications placed on a control system for consistency, and generate the specifications that are missing, but required by the control system design algorithm which is to be used. Further, these specifications must be consistent with the other specifications placed on the system as well the plant dynamics. A method using the Bode ideal characteristic as a nominal loop transmission was developed in order to generate prototype models (dynamics) for use in specifying control system bounds was discussed. The goals were: 1. To generate the prototype models which meet the specifications that were provided. 2. To provide the designer with a means of trading off the control loop characteristics which are not covered by the specifications. 3. To bring the plant characteristics into the generation and evaluation of the prototype models. The prototype models generated are then used to generate the bounds required the the control system design process to be used.