Robust IMC Controllers with Optimal Setpoints Tracking and Disturbance Rejection for Industrial Boiler (original) (raw)

Strojniski Vestnik-journal of Mechanical Engineering, 2010

Abstract

Robust controllers based on Internal Model Control (IMC) theory are developed in this paper to improve the robust performance of industrial boiler system against uncertainties and disturbances. A simplified model of a boiler’s drum unit is developed and transfer matrix realization of its dynamics is obtained for a nominal operational condition. Controllers parameters are selected in accordance with the frequency domain optimization method based on micro-optimality frameworks. The proposed controllers are robust for reference signals and/or for disturbances. Finally, a comparison between the performances of the closed-loop system with designed IMC controllers is obtained.

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