Real-time Compensation Control for Hysteresis and Creep in IPMC Actuators
(0) Hysteresis and creep hinder the effective use of IPMC in sensors and actuators.In order to cope with these disadvantageous effects,a fundamental approach is inverse compensation.This paper presents a hybrid model of hysteresis and creep in piezoelectric actuator,which is constructed by preisach operator and creep operator.Then,the corresponding inverse models for both hysteresis and creep are developed.Based on the obtained inverse model,a method for real-time compensation of the hysteresis and creep of piezoelectric actuator is applied to the control of system nonlinearities.The efficiency of this new model and the method of real-time inverse control are demonstrated by simulation and experiment based on an IPMC actuator.Using this control concept,the tracking errors caused by hysteretic and creep effects are reduced by approximately one order of magnitude,the result verified the validity of the model and effectiveness of the controller.
IPMC actuators hysteresis creep model real-time compensation control.
Zhen Chen Li-na Hao Ding-yu Xue Xin-he Xu Yan-mei Liu
School of Information Science & Engineering,Northeastern University,Shenyang,Liaoning Province,China Department of Automation,Shenyang Institute of Aeronautical Engineering,Shenyang,China
国际会议
International Conference on Modelling,Identification and Control(模拟、鉴定、控制国际会议)
上海
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）