Contour Tracking of a Redundant Robot Using Integral Variable Structure Control with Output Feedback

  • Authors:
  • Chih-Jer Lin;Kai-Sheng Lee

  • Affiliations:
  • Institute of Automation Technology, National Taipei University of Technology, Taipei, Republic of China 106;Institute of Aeronautics and Astronautics, National Cheng-Kung University, Tainan, Republic of China

  • Venue:
  • Journal of Intelligent and Robotic Systems
  • Year:
  • 2011

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Abstract

This work examines the contour tracking problem of redundant robot on a path with singularity. Using an optimal quadratic programming method is to solve the singularity problem and the computing load of motion planning is reduced by a novel hybrid motion planning method. To achieve contour tracking with output feedback, an integral sliding mode control with a high-gain observer is employed to eliminate the chattering due to discontinuous switching control of the sliding-mode control and maintain robustness of the ideal sliding mode.