کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
700588 890886 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A hysteresis compensation method of piezoelectric actuator: Model, identification and control
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
A hysteresis compensation method of piezoelectric actuator: Model, identification and control
چکیده انگلیسی

A major deficiency of piezoelectric actuators is that their open-loop control accuracy is seriously limited by hysteresis. In this paper, a novel mathematical model is proposed to describe hysteresis precisely. Based on the hysteresis model, an adaptive inverse control approach is presented for reducing hysteresis. The weights of the main hysteresis loop are identified by using least mean square (LMS) algorithm. The realization of an inverse feedforward controller for the linearization of a piezoelectric actuator is formulated. Experiments were performed on a micro-positioning system driven by piezoelectric actuators. The experimental results demonstrate that the positioning precision is noticeably improved in open-loop operation compared to the conventional open-loop control without any compensation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Control Engineering Practice - Volume 17, Issue 9, September 2009, Pages 1107–1114
نویسندگان
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