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|Type:||Artigo de evento|
|Title:||Robust Pole Location For An Interacting Tank System With Uncertain Parameters|
|Abstract:||This paper addresses the problem of robust control design for an Interacting Tank System (ITS) model by means of state feedback gains. Specifically, the design of controllers that assure a robust pole location of the closed-loop system inside a circular region on the left-hand side of complex plane is investigated. The ITS modeled is a pilot plant with industrial sensors and actuators. The parameters of the ITS model are supposed to vary as a function of the operating points, being thus, uncertain parameters that can be described by convex polytopes. Three sufficient conditions for the existence of a robust stabilizing state feedback gain are addressed: the quadratic stability based gain, a recently published condition that uses an augmented space and a condition that uses an extended number of equations. The last condition provides a parameter dependent state feedback gain which assures to the uncertain closed-loop system a prespecified pole location inside a circle on the left-hand half of the complex plane. The robust stabilizability conditions are formulated in terms of a set of linear matrix inequalities involving only the vertices of the uncertainty polytope. The parameter dependent gain proposed allows to impose to the closed-loop system pole locations that in some situations cannot be obtained with constant feedback gains.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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