Partial Eigenstructure Assignment for Linear Time-Invariant Systems via Dynamic Compensator

Da-Ke Gu, Zhi-Jing Guo, Rui-Yuan Wang and Yin-Dong Liu ()
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Da-Ke Gu: School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China
Zhi-Jing Guo: School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China
Rui-Yuan Wang: School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China
Yin-Dong Liu: School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China

Mathematics, 2023, vol. 11, issue 13, 1-19

Abstract: This article studies the partial eigenstructure assignment (PEA) problem for a type of linear time-invariant (LTI) system. By introducing a dynamic output feedback controller, the closed-loop system is similar to a given arbitrary constant matrix, so the desired closed-loop eigenstructure can be obtained. Different from the normal eigenstructure assignment, only a part of the left and right generalized eigenvectors is assigned to the closed-loop system to remove complicated constraints, which reflects the partial eigenstructure assignment. Meanwhile, based on the solutions to the generalized Sylvester equations (GSEs), two arbitrary parameter matrices representing the degrees of freedom are presented to obtain the parametric form of the coefficient matrices of the dynamic compensator and the partial eigenvector matrices. Finally, an illustrative example and the simulation results prove the excellent effectiveness and feasibility of parametric method we proposed.

Keywords: partial eigenstructure assignment; dynamic compensator; parametric method; generalized Sylvester equations (GSEs) (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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