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Robust sliding mode control for a class of nonlinear systems with actuator failures and disturbances: A dual‐layer sliding mode strategy by Weiwei Tu; Jiuxiang Dong is a Engineering article available to read on EtoBox.

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This paper studies the problem of robust sliding mode control (SMC) for a class of nonlinear systems subject to actuator failures and disturbances. By employing a novel integral sliding function constructed with an nested sliding mode controller "ν(t)," a dual-layer sliding mode control is established. The first layer is an integral sliding mode generated by the actuator output, the second one is a linear sliding mode generated by "ν(t)." Indeed, the linear sliding mode is nested to the integral sliding mode for the system under consideration. Compared with the state-of-the-art integral sliding mode controls (ISMCs), not only the inherent robustness of ISMC is retained, but also the time derivative of integral sliding function in integral sliding motion dynamics can be compensated by "ν(t)," so that the robustness of integral sliding motion is further enhanced. Furthermore, due to the generation of the nested linear sliding mode, it decouples the matched integral sliding function time derivative of integral sliding motion dynamics from the mismatched disturbance. This decoupling facilitates the design of "ν(t)" through  ∞ control theory, then, the closed-loop systems are ensured t

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Author

Weiwei Tu; Jiuxiang Dong

Publisher

Wiley

Published

2023

Language

EN

Field

Engineering (Physical Sciences)