Robust linear quadratic sliding-mode control for BLDC motor positioning system

I. N. Lee, K. H. Kim, J. H. Lee, D. H. Lee, K. H. You

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

4 Scopus citations

Abstract

The brushless dc motor position tracking system to be controlled includes a friction and a backlash as disturbances. In this paper, we propose a robust linear quadratic sliding-mode controller for precision positioning in a brushless dc motor system. The control algorithm includes a linear quadratic control for an optimal feedback gain and an integral nonlinear sliding-surface based on a new reaching law to remove the reaching phase. It has robust performance against parameter variation which causes an oscillation in case of linear quadratic control. Simulation results show that the proposed controller gives an improved accurate driving tracking result and is robust to plant parameter variation and load torque disturbances.

Original languageEnglish
Title of host publicationAdvances in Mechatronics and Control Engineering
Pages1615-1619
Number of pages5
DOIs
StatePublished - 2013
Event2012 International Conference on Mechatronics and Control Engineering, ICMCE 2012 - Guangzhou, China
Duration: 29 Nov 201230 Nov 2012

Publication series

NameApplied Mechanics and Materials
Volume278-280
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2012 International Conference on Mechatronics and Control Engineering, ICMCE 2012
Country/TerritoryChina
CityGuangzhou
Period29/11/1230/11/12

Keywords

  • Backlash
  • BLDC motor
  • Dynamic system
  • Friction
  • Linear quadratic control
  • Precision positioning

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