Active disturbance rejection vibration control based on delay compensator for an all-clamped plate with inertial actuator

Considering the issues of system delay and uncertainties in an all-clamped plate structural vibration control system with inertial actuator, an active disturbance rejection control strategy on the basis of system-delay compensation is proposed in this paper. First, the electromechanical coupling model of the vibration system is established according to the motion equation of the all-clamped plate and the electromagnetic equation of the inertial actuator Second, a smith predictor is employed to eliminate the influence of time delay on the vibration control system. In addition, the internal and external disturbances, i.e. modeling error, high harmonics and external excitation of vibration system are estimated and compensated via a feedforward part. Finally, based on the desktop real-time simulation environment of MATLAB/SIMULINK and the NI PCIe data acquisition system, the semi-physical simulation platform of the all-clamped plate with the inertial actuator is built to verify the effectiveness and superiority of the presented active vibration control method. In comparison with the linear active disturbance rejection control strategy, the results show that the presented control strategy shows better anti-disturbance ability and vibration suppression performance.