Adaptive control for piezoelectric actuator using discrete-time Bouc-Wen model

In this paper, we consider hysteresis problem which is nonsmooth, nonlinear, and resided in piezoelectric actuators (PEA). A new discrete-time hysteretic model is introduced which is inspired by the famous Bouc-Wen model. We try to fuse the new model with the adaptive control techniques, where the unknown parameters in the model are not needed to be identified. The control algorithm guarantees the stability of system. Experimental results verify the effectiveness of the new model and the proposed algorithm.