Synthesis of robust controllers for the control systems of technological units at iron ore processing plants
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 1, Issue 2
Abstract
<p>In order to synthesize a robust system of control over technological units, an analysis of appropriate mathematical models was performed. The uncertainty of models of technological iron ore processing units was accounted for by connecting a diagonal block at the top using a fractional linear transformation.</p><p>To study robust control systems of technological units, we applied the following types of robust controllers: suboptimal H<sub>∞</sub>-controller, a controller that was synthesized using the method of circuit formation, and µ-controller. We performed an analysis of results of the study into indicators of robust quality and stability of control, created on the basis of these types of controllers.</p><p>The best results were obtained using μ-controller, which ensures a minimal overshoot value of 2 %. Reducing the order of the selected μ-controller to the fourth order was performed by approximation using the Hankel norm. Under such a condition, a root-mean-square error relative to the base controller is 0.027.</p><p>Results of present research could be used in the synthesis of control over technological iron ore processing units under conditions of uncertainty in parameters. </p>
Authors and Affiliations
Vladimir Morkun, Natalia Morkun, Vitaliy Tron, Svitlana Hryshchenko
Keywords
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- EP ID EP527733
- DOI 10.15587/1729-4061.2018.119646
- Views 115
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