Interpreting specifications for control system design
Date
2008-06-10T07:33:55Z
Authors
Harris, Kevin Edward
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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.