Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5004603 | ISA Transactions | 2014 | 9 Pages |
Abstract
This paper shows how to apply generalized eigenvalue minimization to processes that can be described by a first-order plus time-delay model with uncertain gain, time constant and delay. An algorithm to transform the uncertain first-order plus time delay model into a state-space model with uncertainty polyhedron is firstly described. The accuracy of the transformation is studied using numerical examples. Then, the uncertainty polyhedron is rewritten as a linear-matrix-inequality constraint and generalized eigenvalue minimization is adopted to calculate a feedback control law. Case studies show that even if uncertainties associated with the first-order plus time delay model are significant, a stable feedback control law can be found. The proposed control is tested by comparing with a robust internal model control. It is also tested by applying it to the temperature control of air-handing units.
Keywords
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Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Gongsheng Huang, Keck Voon Ling, Xiaoning Xu, Yundan Liao,