This work presents a control design method to determine the parameters of a proportional integral (PI) compensator satisfying desired specifications on the gain and phase margins or, alternatively, an upper bound on the sensitivity transfer function, for an uncertain plant. The process under consideration can be modeled by a first order plus dead time (FOPDT) model having interval parametric uncertainty, therefore a set of plants is considered. The proposed approach is based on the translation of the desired …
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