Active Vibration Control of a Dynamic Hysteresis System Using $\mu$ -Synthesis

IEEE Access

Kemin Zhou¹  Jiabin Liu² 

[1] School of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, China;School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China;

关键词: Vibration control;    μ synthesis;    robust control;    Hammerstein model;    piezoelectric actuator;    acceleration sensor;   

DOI  :  10.1109/ACCESS.2018.2884611

来源: DOAJ

【 摘 要 】

This paper considers active vibration control of a dynamic hysteresis system with a piezoelectric actuator using acceleration sensors for data acquisition. A Hammerstein model is proposed with a BP neural network model and an autoregressive model with exogenous input representing, respectively, the static hysteresis and the rate-dependent characteristics. It is shown that the tracking errors of our model are less than 7% within a frequency range of 10-100 Hz, showing that the obtained model can describe the system hysteresis well. A μ-synthesis strategy is used for vibration control with a nonlinear inverse compensation based on the obtained model. The experimental results show that the proposed robust control method can effectively attenuate the vibration with more than 60% vibration reduction within a frequency range of 35-80 Hz.

【 授权许可】

Unknown