Composite nonlinear feedback design for discrete-time switching systems with disturbances and input saturation

ABSTRACT

This paper addresses the problem of robust controller design for a class of discrete-time switching systems with input saturation. To this aim, the composite nonlinear feedback method is extended to design a robust controller with improved performances in terms of the response speed and overshoot in the presence of disturbances and input saturation. The proposed approach is theoretically analysed and its closed-loop stability is proved. Then, the performance of the proposed method is verified using numerical simulations.

KEYWORDS:

• Composite nonlinear feedback
• discrete-time switching systems
• input saturation

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Farhad Bayat http://orcid.org/0000-0001-5131-3419