The design of robust feedback controllers in the time domain

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Abstract
In this new approach to designing multivariable feedback controllers in the time domain the model uncertainties are dealt with in the sense of unknown-but-bounded uncertainties. They are described by multi-input multi-output comparison systems. Thus, the character of the plant as a multi variable dynamical system is preserved even in the considerations of the uncertainties. The controller parameters are selected by means of well-known design algorithms. The robustness of the controller is investigated on the basis of a stability condition and an estimate of the input-output behaviour of the incompletely known closed-loop original system. The results are illustrated by a practical design example.

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