کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7109484 | 1460649 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multirate adaptive control of uncertain resonances beyond the Nyquist frequency in high-performance mechatronic systems
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, an add-on multirate adaptive control scheme is proposed to compensate for uncertain mechanical resonant modes beyond the Nyquist frequency in mechatronic systems. The multirate adaptive controller is incorporated into the existing sampled-data control system sampled at a slow rate. To integrate well with the pre-designed feedback controller, an auxiliary error instead of the regulation error is utilized to design the multirate adaptive controller. By using a polynomial transformation technique and a recursive least-squares algorithm with a dead-zone, the proposed multirate adaptive control ensures boundedness of all the closed-loop signals and convergence of the auxiliary error. Our simulation and experimental results on the head-positioning servo control system of a hard disk drive demonstrate the effectiveness of our proposed compensation scheme in attenuating the vibration for uncertain resonances beyond the Nyquist frequency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Automatica - Volume 66, April 2016, Pages 63-72
Journal: Automatica - Volume 66, April 2016, Pages 63-72
نویسندگان
Weili Yan, Chunling Du, Chee Khiang Pang,