Control Study of Precision Giant Magnetostrictive Actuator Based on Active Disturbance Rejection Control Technology

Introduce the structure and working principle of precision giant magnetostrictive actuator and establish the actuator system object transfer function model so as to design a suitable active disturbance rejection controller (ADRC). According to the model analysis, regard the actuator system as a first-order inertia object with dead time to construct second-order ADRC, use MATLAB for parameter tuning and put the parameters into the controller to conduct simulation experiment on the actuator system objects. Simulation results show that the ADRC constructed has good control effect and strong anti-jamming ability and the parameters have strong robustness.

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