Two-degree-of-freedom controller design for an ill-conditioned distillation process using µ-synthesis

Abstract

The structured singular value framework is applied to a distillation benchmark problem formulated for the 1991 IEEE Conference on decision and control (CDC). A two degree of freedom controller, which satisfies all control objectives of the CDC problem, is designed using /spl mu/-synthesis. The design methodology is presented and special attention is paid to the approximation of given control objectives into frequency domain weights.

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