A Hammerstein-based Model for Rate-dependent Hysteresis in Piezoelectric Actuator

摘要：

Most smart materials used in engineering applications have rate-dependent hysteresis nonlinearity. In this paper, a Hammerstein-based model is proposed to describe the dynamic characteristics of rate-dependent hysteresis in piezoelectric actuator. A Bouc-Wen model is used to approximate the static nonlinear characteristic while a linear dynamic model is constructed to capture the rate-dependent property of the hysteresis. Firstly, Bouc-Wen model parameters are optimized with particle swarm optimization (PSO) algorithm to model the static hysteresis nonlinearity. Based on this constructed static hysteresis nonlinear model, a recursive least squares (RLS) algorithm is utilized to identify the dynamic linear model parameters of Hammerstein model according to the input-output data with rich frequency information. Finally, the experimental results of applying the proposed method to the modeling of rate-dependent hysteresis in a piezoelectric actuator are presented with a 100Hz sinusoidal scanning signal. The model generation capability is verified in the given frequency range from 1Hz to100Hz when the excitation voltage are 40V, 80V, 120V, respectively.

关键词： Hammerstein Bouc-Wen Rate-dependent Piezoelectric actuator

作者: Zhenyan Wang Zhen Zhang Jianqin Mao Kemin Zhou

作者单位: School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astro School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astro School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031, China

会议类型: 国际会议

会议名称: The 24th Chinese Control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)

会议地点: 太原

会议语种:英文

页码: 1403-1408

在线出版日期: 2012-05-23（万方平台首次上网日期，不代表论文的发表时间）