Strict feedback nonlinear systems based on event trigger preset since the immunity of finite time tracking control

Summary: Research on event-triggered ADRC preset finite-time tracking control for a class of strictly feedback nonlinear systems.Using the backstepping method combined with the active disturbance rejection control technology, preset performance and limited time control method, aAn event-triggered active disturbance rejection preset performance finite-time control strategy, and the design method of the controller is given..This method uses the extended state observer of the active disturbance rejection technique to estimate the unknowns in the system in the recursive design of each step, while using the tracking differentiator to estimate the derivative of the virtual control to avoidDifferential expansion.It ensures that the system output isThe reference signal is tracked with a preset precision and all signals in the closed loop system are bounded.The use of the event trigger mechanism makes the control input no longer continuously updated, saving communication resources.Simulation verifies the effectiveness and superiority of this method.

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