Fractional robust adaptive decoupled control for attenuating creep, hysteresis and cross coupling in a parallel piezostage

• Published in: Mechanical systems and signal processing Vol. 159; p. 107764
• Main Authors: Kang, Shengzheng, Wu, Hongtao, Yang, Xiaolong, Li, Yao, Pan, Liang, Chen, Bai
• Format: Journal Article
• Language: English
• Published: Berlin Elsevier Ltd 01.10.2021; Elsevier BV
• Subjects: Accuracy; Adaptive control; Control methods; Creep; Cross coupling; Decoupling; Disturbances; Feedback control; Feedforward control; Fractional order; Hysteresis; Micropositioning; Model reference adaptive control; Parameter uncertainty; Piezoelectric actuators; Piezoelectric device; Robust control; Stability analysis; Piezoelectric device; Cross coupling; Fractional order; Creep; Adaptive control; Hysteresis

Parallel micropositioning piezostages are widely used in the micro-/nano-manipulation applications, but also subject to the nonlinear disturbances, like hysteresis, creep and cross-coupling effects. In this paper, a new fractional robust adaptive decoupled control (FRADC) is synthesized for a six-ax...