جهت دسترسی به کاربرگه ی زیر، از این لینک استفاده کنید. http://dl.pgu.ac.ir/handle/Hannan/81862
Title: Robust hybrid estimation and rejection of multi-frequency signals
Keywords: Science & Technology;Technology;Automation & Control Systems;Engineering, Electrical & Electronic;Engineering;frequency estimation;robust adaptive control;output regulation;disturbance rejection;hybrid observer;INTERNAL-MODEL;SINUSOIDAL DISTURBANCES;SERVOMECHANISM PROBLEM;OUTPUT REGULATION;LINEAR-SYSTEMS;FREQUENCY;COMPENSATION;ALGORITHMS;TRACKING;DESIGN;Industrial Engineering & Automation; Electrical And Electronic Engineering;0102 Applied Mathematics
Issue Date: 4-Mar-2016
28-Jan-2016
Publisher: Wiley
Description: We consider the problem of output regulation for LTI systems in the presence of unknown exosystems. The knowledge about the multi-frequency signals exosystem consists in the maximum number of frequencies and their maximal value. The control scheme relies on two main components: an estimation algorithm, to reconstruct the signal generated by the exosystem, and a controller, to enforce the output regulation property to the closed-loop system. To tackle the first task, we propose a hybrid observer for the estimation of the (possibly piece-wise continuous) number and values of the frequencies contained in the exogenous signal. The hybrid observer is particularly appealing for numerical implementations, and it is combined with a self-tuning algorithm of the free parameters (gains), thus improving its performance even in case of noisy measurements. Semi-global exponential convergence of the estimation error is provided. As far as the second task is concerned, a robust hybrid regulator is designed for practical rejection of the multi-frequency disturbance signal acting on the plant. The result is achieved by exploiting the frequencies estimated by the hybrid observer. The effectiveness of the proposed control scheme is shown by means of numerical simulations.
URI: http://dx.doi.org/10.1002/acs.2679
Other Identifiers: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000389409100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
1099-1115
http://hdl.handle.net/10044/1/44510
Type Of Material: Other
Appears in Collections:Faculty of Engineering

Files in This Item:
There are no files associated with this item.


تمامی کاربرگه ها در کتابخانه ی دیجیتال حنان به صورت کامل محافظت می شوند.