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Robust Fixed-Time Inverse Dynamic Control for Uncertain Robot Manipulator System

Author

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  • Yang Wang
  • Mingshu Chen
  • Yu Song
  • Heng Liu

Abstract

This paper proposes a novel robust fixed-time control for the robot manipulator system with uncertainties. Based on the uniform robust exact differentiator (URED) algorithm, a robust control term is constructed. Then, a robust fixed-time inverse dynamics control (IDC) is proposed. For the proposed control method, the fixed-time stability of a closed-loop system with uncertainties is strictly proved. The newly proposed method exhibits the following two attractive features. First, the proposed control scheme extends the existing fixed-time IDC for the robot manipulator system to the robust control scheme. Second, the proposed method is strictly nonsingular rather than the commonly used approximate approach. Simulation result demonstrates the effectiveness of the proposed control scheme.

Suggested Citation

  • Yang Wang & Mingshu Chen & Yu Song & Heng Liu, 2021. "Robust Fixed-Time Inverse Dynamic Control for Uncertain Robot Manipulator System," Complexity, Hindawi, vol. 2021, pages 1-12, January.
    • Handle: RePEc:hin:complx:6664750
    DOI: 10.1155/2021/6664750
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