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Comparison of Closed-Loop Systems Performance Using Low-Order Controllers via Model Reduction: Heat Conduction Case

Fatmawati Fatmawati, Riyanto Bambang


In this paper, we compare two model reduction methods to achieve low order controllers for heat conduction case. The first method is based on the standard technique of balanced truncation (BT). In the second method, singular perturbation approximation (SPA) is applied to obtain reduced order model of the systems. Furthermore, we discuss decomposition technique for reducing the order of an unstable system. H∞ control design is then applied to each reduced-order model. Numerical results are presented to show the closed-loop systems performance.

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