The main purpose of this contribution is to present an approach for controlling the airflow speed in laboratory plant of hot-air tunnel which is modelled as a system with parametric uncertainty. The 1DOF and 2DOF controller design is based on algebraic technique and closed-loop robust stability is analyzed via combination of the value set concept and the zero exclusion condition. Practical applicability of the method is demonstrated through real control experiments. © 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license
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