Operator-based nonlinear feedback control design using robust right coprime factorization

In this note, robust stabilization and tracking performance of operator based nonlinear feedback control systems are studied by using robust right coprime factorization. Specifically, a new condition of robust right coprime factorization of nonlinear systems with unknown bounded perturbations is derived. Using the new condition, a broader class of nonlinear plants can be controlled robustly. When the spaces of the nonlinear plant output and the reference input are different, a space change filter is designed, and in this case this note considers tracking controller design using the exponential iteration theorem.

Digital Object Identifier: 10.1109/TAC.2006.872758
Published with permission from the copyright holder. This is the institute's copy, as published in Automatic Control, IEEE Transactions on, April 2006, Volume 51, Issue 4, Pages 645-648.
Publisher URL:http://dx.doi.org/10.1109/TAC.2006.872758
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