Combined model-based sliding-mode controller for a three-phase voltage source inverter fed induction motor drive

Yousif Eldigair, Igor Boiko, Abdul R. Beig

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

Abstract

The chattering phenomenon associated with the use of Sliding Mode Controllers (SMC) is considered a major drawback of the robust controllers. Ideally, SMCs are to exhibit infinite switching frequency but this is always compromised by the existence of parasitic dynamics which add to the input relative degree of the system and leads to high but finite switching frequency. The performance and robustness of the controller can be closely linked to the resulting switching frequency. Often, when controlling the speed of induction motors, SMCs are applied and used to generate what is assumed to be smooth control signals. These control signals are used as modulation inputs for various carrier based modulation schemes. In doing so, the sliding action of the controller is disrupted as the SMC's switching frequency is limited by the finite carrier frequency of the modulation process. This effect is carefully analysed in this paper. An alternative is considered in this paper where SMCs are applied to the inner most control loop without the use of any carrier based modulation schemes.

Original languageBritish English
Title of host publicationIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2118-2123
Number of pages6
ISBN (Electronic)9781479917624
DOIs
StatePublished - 2015
Event41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan
Duration: 9 Nov 201512 Nov 2015

Publication series

NameIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

Conference

Conference41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
Country/TerritoryJapan
CityYokohama
Period9/11/1512/11/15

Keywords

  • Control
  • Induction Motor
  • Pulse Width Modulation
  • Robustness
  • Sliding Mode Control
  • Variable Speed Drives

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