Analysis of Oscillations in Homogenous Sliding Mode Controllers using the Locus of a Perturbed Relay System

Ahmed Rehan, Igor Boiko, Yahya Zweiri

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work investigates the use of the Locus of Perturbed Relay System (LPRS) to analyze oscillations in homogenous sliding mode controllers in the condition of absence of parasitic dynamics. The homogenous sliding mode controllers produce either finite time convergence or non-vanishing oscillations under different combinations of system and controller parameters. The undertaken LPRS analysis reveals that multiple frequency solutions exist for the systems of different relative degrees. Solutions of the nonlinear equations of the LPRS are computed numerically to determine these frequency points. Simulations are done to see the behavior of these solution frequencies, which shows that some of these are stable frequency points while others are unstable.

Original languageBritish English
Title of host publication2022 16th International Workshop on Variable Structure Systems, VSS 2022
PublisherIEEE Computer Society
Pages9-14
Number of pages6
ISBN (Electronic)9781665463591
DOIs
StatePublished - 2022
Event16th International Workshop on Variable Structure Systems, VSS 2022 - Rio de Janeiro, Brazil
Duration: 11 Sep 202214 Sep 2022

Publication series

NameProceedings of IEEE International Workshop on Variable Structure Systems
Volume2022-September
ISSN (Print)2165-4816
ISSN (Electronic)2165-4824

Conference

Conference16th International Workshop on Variable Structure Systems, VSS 2022
Country/TerritoryBrazil
CityRio de Janeiro
Period11/09/2214/09/22

Keywords

  • Homogenous SMC
  • LPRS
  • Phase Deficit
  • Self-excited Oscillations
  • SMC

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