Analysis of Sliding Mode Controllers in pulse width modulated systems

Yousif Eldigair, Igor Boiko, Abdul R. Beig

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

1 Scopus citations

Abstract

The use of Sliding Mode Controllers (SMCs) offers the benefits robust set-point tracking and good disturbance rejection characteristics yet can be discouraged due the chattering phenomenon associated. This chattering itself arises from the fact that the ideal SMC which is allegedly discontinuous and is to switch at infinite frequency can never be realized in practice as a result of parasitic or falsely modelled and neglected dynamics which introduces delays and add an overall lag in the feedback control loop. In systems involving the control of power converters, active filters or electric drives, Pulse Width Modulation (PWM) techniques are often used as to generate discrete control signals to trigger the gates of the converter. The modulation action, however, constitutes a delay; thus, inhibits the proper operation of any SMC incorporated within the control loop.

Original languageBritish English
Title of host publication2016 14th International Workshop on Variable Structure Systems, VSS 2016
PublisherIEEE Computer Society
Pages77-79
Number of pages3
ISBN (Electronic)9781467397889
DOIs
StatePublished - 7 Jul 2016
Event14th International Workshop on Variable Structure Systems, VSS 2016 - Nanjing, China
Duration: 1 Jun 20164 Jun 2016

Publication series

NameProceedings of IEEE International Workshop on Variable Structure Systems
Volume2016-July
ISSN (Print)2165-4816
ISSN (Electronic)2165-4824

Conference

Conference14th International Workshop on Variable Structure Systems, VSS 2016
Country/TerritoryChina
CityNanjing
Period1/06/164/06/16

Keywords

  • Pulse Width Modulation
  • Robustness
  • Sliding Mode Control

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