کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
752016 895371 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Global exponential regulation of discrete time linear systems with unknown neutrally stable exosystems
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Global exponential regulation of discrete time linear systems with unknown neutrally stable exosystems
چکیده انگلیسی

Discrete time, linear, stabilizable and detectable systems with known parameters are considered: the regulation problem is addressed when the reference output and/or the disturbances contain sinusoidal terms generated by a linear exosystem with unknown parameters. Only an upper bound on the number of unknown sinusoids is supposed to be known. A constructive algorithm is proposed to drive the regulation error exponentially to zero on the basis of its measurement only, under the same necessary and sufficient conditions which are required when the exosystem is known. The control strategy includes an online detector for the number of excited frequencies and exponentially converging global estimates of the exosystem unknown parameters. An illustrative example containing a variable number of frequencies is worked out and simulated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Systems & Control Letters - Volume 60, Issue 8, August 2011, Pages 561–569
نویسندگان
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