Ga. Brusher et al., COUPLING BETWEEN THE MODELING AND CONTROLLER-DESIGN PROBLEMS .2. DESIGN, Journal of dynamic systems, measurement, and control, 119(2), 1997, pp. 278-283
In Part I of this paper, the coupling between the modeling and control
ler-design problems was quantified in terms of the size of the set of
models from which satisfactory controllers may be derived. Herein, the
significance of this coupling in controller design is exploited in th
e formulation of a simultaneous approach to modeling and controller de
sign. The goal is to minimize the worst-case control effort subject to
constraints on worst-case performance. It is proven that, by allowing
the controller design model and the controller to vary simultaneously
, this approach yields a potential reduction in the control effort req
uired to satisfy the prescribed performance goals in comparison to the
traditional sequential approach. Two simple examples illustrating the
benefits of this approach are also presented.