کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
390430 661255 2010 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Globally stable adaptive backstepping fuzzy control for output-feedback systems with unknown high-frequency gain sign
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Globally stable adaptive backstepping fuzzy control for output-feedback systems with unknown high-frequency gain sign
چکیده انگلیسی

This paper addresses the problem of globally stable adaptive backstepping output-feedback tracking control for a class of nonlinear systems with unknown high-frequency gain sign. The fuzzy systems are used as feedforward compensators to model some system functions depending on the reference signal. Thus, the global stability of closed-loop system can be guaranteed under the assumption that the unknown system functions are bounded by partly known nonlinear functions. The other advantage of the proposed control scheme is that the designer can determine the approximation domain a priori via the bound of the reference signal, which is very important for the choice of the centers and widths of membership functions. Moreover, the Nussbaum-type function is employed to deal with the unknown high-frequency gain sign. Two simulation examples are provided to illustrate the feasibility of control scheme presented in this paper.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuzzy Sets and Systems - Volume 161, Issue 6, 16 March 2010, Pages 821-836