کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
696470 | 890338 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ineluctability of oscillations in systems with digital implementation of derivative feedback
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Ineluctability of oscillations in systems with digital implementation of derivative feedback Ineluctability of oscillations in systems with digital implementation of derivative feedback](/preview/png/696470.png)
چکیده انگلیسی
Differentiation in feedback is common practice in digital control. Yet, the fundamental behavior of the universally employed backward difference of quantized signals has not been studied thus far. We show that velocity always oscillates when this type of feedback is applied to a forced, linear second-order system for any system parameter. We then compute a bound for the oscillation amplitude, which can be easily computed given the parameters of the system. Experimental results are in close agreement with the theory. If the system has dry friction, our study yields a sufficient condition for the quenching of spontaneous oscillations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Automatica - Volume 47, Issue 11, November 2011, Pages 2444–2450
Journal: Automatica - Volume 47, Issue 11, November 2011, Pages 2444–2450
نویسندگان
Andrew H.C. Gosline, Vincent Hayward, Hannah Michalska,