DocumentCode
2846885
Title
Analysis of chattering in sliding mode control systems with continuous boundary layer approximation of discontinuous control
Author
Boiko, I.M.
Author_Institution
MB Controls, Univ. of Calgary, Calgary, AB, Canada
fYear
2011
fDate
June 29 2011-July 1 2011
Firstpage
757
Lastpage
762
Abstract
It has been a widely accepted notion that approximation of discontinuous control by certain continuous function in a boundary layer results in chattering elimination in sliding mode (SM) control systems. It is shown through three different types of analysis that in the presence of parasitic dynamics, this approach to chattering elimination would work only if the slope of the continuous nonlinear function within the boundary layer is low enough, which may result in the deterioration of performance of the system. A few examples are provided.
Keywords
approximation theory; continuous systems; sampled data systems; variable structure systems; chattering elimination; continuous boundary layer approximation; continuous nonlinear function; discontinuous control; parasitic dynamics; sliding mode control system; Approximation methods; Equations; Linear systems; Oscillators; Sensors; Stability criteria;
fLanguage
English
Publisher
ieee
Conference_Titel
American Control Conference (ACC), 2011
Conference_Location
San Francisco, CA
ISSN
0743-1619
Print_ISBN
978-1-4577-0080-4
Type
conf
DOI
10.1109/ACC.2011.5990793
Filename
5990793
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