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FO based-LQR stabilization of the rotary inverted pendulum

  • Arturo Rojas-Moreno
  • , Juan Hernandez-Garagatti
  • , Oscar Pacheco De La Vega
  • , Luis Lopez-Lozano

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

20 Scopus citations

Abstract

This work implements a feedback control system for stabilizing the RIP (Rotary Inverted Pendulum) using a FO (Fractional Order) based-LQR (Linear Quadratic Regulator) controller. That is, every derivative term of a classical LQR control law containing the Laplace variable s will be transformed into its FO derivative form sm, where m isa fractional number between 0 and 1. Experimental results obtained with LQR and FO LQR-based controllers demonstrated that all designed control systems were able to stabilize the pendulum with and without the action of disturbances and in the presence of a larger pendulum Link mass. However, the application of a FO LQR-based controller improves the robustness of the control system. Such control systems use direct measurement of pendulum and motor shaft positions. For LQR controllers, speeds were obtained by differentiation of the corresponding positions and passed through first order filters to reject high frequency noise. It was not required to use any additional filter for the FO LQR-based controller.

Original languageEnglish
Title of host publicationProceedings of the 28th Chinese Control and Decision Conference, CCDC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4292-4297
Number of pages6
ISBN (Electronic)9781467397148
DOIs
StatePublished - 3 Aug 2016
Event28th Chinese Control and Decision Conference, CCDC 2016 - Yinchuan, China
Duration: 28 May 201630 May 2016

Publication series

NameProceedings of the 28th Chinese Control and Decision Conference, CCDC 2016

Conference

Conference28th Chinese Control and Decision Conference, CCDC 2016
Country/TerritoryChina
CityYinchuan
Period28/05/1630/05/16

Keywords

  • FO Controller
  • FO filter
  • LQR Control
  • Rotary Inverted Pendulum Stabilization

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