Robust coupling control using pole region assignment

In this paper, we develop a constructive method for designing robust linear coupling controllers with respect to the closed-loop eigenvalues and eigenstructure. The design method is based on a multimodel approach for parameter-varying systems, which is used to calculate constraints for a complete state feedback. The associated controller structure assures the fulfillment of given algebraic coupling conditions and is finally parameterized in a pole region assignment procedure. Necessary and sufficient conditions for the existence of a robust coupling controller are determined and an approximate method is developed for the case in which these conditions are not fulfilled. The developed method is applied to an example system. (C) 2021 Elsevier B.V. All rights reserved.