Plant template generation of uncertain plants in quantitative feedback theory
journal contribution
posted on 2008-11-03, 16:46authored byWen-Hua Chen, Donald J. Ballance
The creation of templates for uncertain plants is an essential first step
in Quantitative Feedback Theory (QFT) and other frequency domain methods.
For the plants with general uncertain structure, a method to identify
the critical interior points in an uncertain parameter set which map to the
boundaries of plant templates is presented. It is shown that the boundaries
of templates are only generated by the edges of an uncertain parameter set
and those critical interior points. With the help of symbolic computation,
a computational tractable procedure for generating the templates is developed.
This general procedure is illustrated by a vehicle clutch systems and
the longitudinal dynamics of a small aircraft where the underlying uncertain
parameters perturb both plants nonlinearly.
History
School
Aeronautical, Automotive, Chemical and Materials Engineering
Department
Aeronautical and Automotive Engineering
Citation
CHEN, W-H. and BALLANCE, D. J., 1999. Plant template generation of uncertain plants in quantitative feedback theory. Journal of dynamic systems, measurement and control, 121, No. 3, pp.358-364