ABSTRACT
Electromechanical actuators are currently widely used in various engineering fields, whose advantages include convenient maintenance and strong stability. To meet the requirements of control precision and response speed for electromechanical actuators, a non-singular fast terminal sliding mode control method based on fuzzy neural network was designed in this paper. The non-singular fast terminal sliding mode controller can not only speed up the response tracking speed, but also solve the singular phenomenon that the fast terminal sliding mode control will make the input of the control system show an infinite trend to let the system will eventually stabilize. Aiming at the nonlinear factors existing in the system, the universal approximation characteristics of the fuzzy Radial Basis Function (RBF) neural network were used to track and compensate for nonlinear factors. The Lyapunov stability theorem was adopted to prove the stability of the designed controller. Through the repeated correspondence of simulation and experiment, it was proved that the designed controller has better control precision than the currently commonly used proportional-integral-derivative (PID) controller and Adaptive Robust Controlller (ARC).
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