Sliding mode iterative learning control of the Piezoceramic Actuators

In this paper, a sliding mode iterative learning controller has been designed to suppress the nonlinear of the Piezoceramic Actuators which is hard to modeling. First, a second-order system is used to describe the Piezoceramic Actuators. Then, a sliding mode controller has been presented to suppress the random interference, and an iterative learning controller has been designed to offset the periodic disturbance. Combining the advantages of the two controls, a sliding mode iterative learning controller has been proposed for the Piezoceramic Actuators. The stabilities of the sliding mode control and the sliding mode iterative learning control have been proved. Finally, the experiments proved the effectiveness of the designed controllers.