Robust tracking control of servo systems with backlash: Nonsmooth H control vs. linear H control

Israel U. Ponce, Yury Orlov, Luis T. Aguilar, Joaquin Alvarez

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

3 Scopus citations

Abstract

Backlash and Coulomb friction occurring in systems with mechanical transmissions produce undesired inaccuracies, oscillations, and instability thereby degrading the system performance. In this paper, we made a comparative analysis of a nonsmooth H controller [1] vs. a linear H controller applied to a two-mass drive system with flexible shaft including backlash and Coulomb friction using measurements of the motor. The numerical results show the effectiveness of the nonsmooth H synthesis, whereas the linear H-controller does not attenuate the undesirable oscillations in the control signals and the plant outputs.

Original languageEnglish
Title of host publicationACC 2015 - 2015 American Control Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2051-2056
Number of pages6
ISBN (Electronic)9781479986842
DOIs
StatePublished - 28 Jul 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: 1 Jul 20153 Jul 2015

Publication series

NameProceedings of the American Control Conference
Volume2015-July
ISSN (Print)0743-1619

Conference

Conference2015 American Control Conference, ACC 2015
Country/TerritoryUnited States
CityChicago
Period1/07/153/07/15

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