Adaptive control of robotic servo system with friction compensation

Dongdong Zheng*, Jing Na, Xuemei Ren, Guido Herrmann, Stefano Longo

*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

Adaptive control design is studied for a class of robotic turntable servo systems with friction dynamics. A newly developed continuously differentiable friction model is utilized, where the explicit model parameters are incorporated into the neural network weights adaptation. To further enhance the adaptation convergence and to reduce the tracking error, a velocity predictor is proposed to develop a composite adaptation law combining the tracking error and the predictor error. Stability analysis and bounds for both errors are guaranteed, and extensive experimental investigations are performed on a two-axis robotic turntable to assess the advantages and the achievable control performance of the proposed schemes.

Original languageEnglish
Title of host publicationProceedings of the 2011 IEEE 5th International Conference on Robotics, Automation and Mechatronics, RAM 2011
Pages285-290
Number of pages6
DOIs
Publication statusPublished - 2011
Event2011 IEEE 5th International Conference on Robotics, Automation and Mechatronics, RAM 2011 - Qingdao, China
Duration: 17 Sept 201119 Sept 2011

Publication series

NameIEEE Conference on Robotics, Automation and Mechatronics, RAM - Proceedings
ISSN (Print)2158-219X

Conference

Conference2011 IEEE 5th International Conference on Robotics, Automation and Mechatronics, RAM 2011
Country/TerritoryChina
CityQingdao
Period17/09/1119/09/11

Keywords

  • Adaptive control
  • friction compensation
  • neural network
  • robotic turntable

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