Nonlinear Systems

A fault tolerance method for control systems with full or partial fault decoupling

A. N. Zhirabok^ab, V. V. Filaretov^c, A. V. Zuev^b, A. E. Shumsky<sup>a

a</sup> Far Eastern Federal University, Vladivostok
^b Institute of Marine Technology Problems
^c Institute for Automation and Control Processes, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok

Abstract: This paper considers technical systems described by nonlinear dynamic models. The fault tolerance property of such systems is ensured by introducing feedback with full or partial fault decoupling. The solution is based on separating a subsystem insensitive or minimally sensitive to faults and its subsequent analysis. For this purpose, a logical-dynamic approach is used, which operates only linear algebra methods. An illustrative practical example is provided.

Keywords: nonlinear systems, faults, isolation, feedback, singular value decomposition.

Presented by the member of Editorial Board: A. A. Bobtsov

Received: 15.11.2023
Revised: 15.04.2024
Accepted: 20.04.2024

DOI: 10.31857/S0005231024070026

 English version: Automation and Remote Control, 2024, 85:7, 584–596