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Partial Pole Assignment via Constant Gain Feedback in Two Classes of Frequency-domain Models

Guo-Sheng Wang, Guo-Zhen Yang, and Guang-Ren Duan
International Journal of Control, Automation, and Systems, vol. 5, no. 2, pp.111-116, 2007

Abstract : The design problem of partial pole assignment (PPA) in two classes of frequency-domain MIMO models by constant gain feedback is investigated in this paper. Its aim is to design a constant gain feedback which changes only a subset of the open-loop eigenvalues, while the rest of them are kept unchanged in the closed-loop system. A near general parametric expression for the feedback gain matrix in term of a set of design parameter vectors and the set of the closed-loop poles, and a simple parametric approach for solving the proposed problem are presented. The set of poles do not need to be previously prescribed, and can be set undetermined and treated together with the set of parametric vectors as degrees of design freedom provided by the approach. An illustrative example shows that the proposed parametric method is simple and effective.

Keyword : Feedback control, frequency-domain models, parameterization, pole assignment.

 
 
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