웨이블릿 네트워크를 이용한 압전구동기의 견실제어

Abstract

An iterative robust control design for PZT using Gaussian wavelet networks is proposed. A Gaussian wavelet network with accurate approximation capability is employed to approximate the nonlinear hysteresis dynamics of PZT systems by using an iterative control algorithm. Depending on the finite number of wavelet basis functions which results in unavoidable approximation errors, a robust control nano positioning system. Finally, the effectiveness of the robust control approach is illustrated through comparative simulations on a PZT.