Real-time compensation control for hysteresis and creep in IPMC actuators Online publication date: Sat, 21-Mar-2015
by Zhen Chen, Li-na Hao, Ding-yu Xue, Xin-he Xu, Yan-mei Liu
International Journal of Modelling, Identification and Control (IJMIC), Vol. 12, No. 1/2, 2011
Abstract: 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.
Online publication date: Sat, 21-Mar-2015
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Modelling, Identification and Control (IJMIC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email email@example.com