Physics

Nonlinear system

Tracking error

Pedagogy

Mathematics

Agronomy

Backstepping

Biology

Adaptive control

Filter (signal processing)

Differentiator

Mathematical analysis

Artificial intelligence

Psychology

Controller (irrigation)

Control (management)

Tracking (education)

Computer science

Quantum mechanics

Computer vision

Bounded function

Control theory (sociology)

Artificial neural network

Lyapunov function

IEEE Transactions on Cybernetics

This article investigates the neural-network-based adaptive predefined-time tracking control problem for switched nonlinear systems. Neural networks are employed to approximate the unknown part of nonlinear functions. The finite-time differentiators are introduced to estimate the first derivative of the virtual controllers. Then, a novel adaptive predefined-time controller is proposed by utilizing the backstepping control technique and the common Lyapunov function (CLF) method. It is explained by the theoretical analysis that the developed controller guarantees that all signals of the switched closed-loop systems are bounded under arbitrary switchings and the tracking error converges to zero within the predefined time. A simulation is shown to verify the validity of the developed predefined-time control approach.

Predefined-Time Adaptive Neural Tracking Control of Switched Nonlinear Systems