A1 Journal article (refereed), original research

Active Fault-Tolerant Control Design for Actuator Fault Mitigation in Robotic Manipulators


Open Access publication

Publication Details
Authors: Shabbouei Hagh Yashar, Asl Mohammadi Reza, Fekih Afef, Wu Huapeng, Handroos Heikki
Publisher: Institute of Electrical and Electronics Engineers (IEEE): OAJ / IEEE
Publication year: 2021
Language: English
Related journal or series: IEEE Access
Volume number: 9
eISSN: 2169-3536
JUFO level of this publication: 2
Open Access: Open Access publication

Abstract

This paper proposes an active fault-tolerant control (FTC) scheme for robotic manipulators subject to actuator faults. Its main objective is to mitigate actuator faults and maintain system performance and stability, even under faulty conditions. The proposed FTC design combines the robustness and finite time convergence of non-singular terminal synergetic control with the optimization properties of an interval type-2 fuzzy satin bowerbird algorithm. System stability is established via the Lyapunov stability criteria. An adaptive state-augmented extended Kalman filter is implemented as the fault detection and diagnosis (FDD) module, to provide the controller with necessary information about faults in real time. This FDD scheme is based on the simultaneous estimation of the faulty parameters and system states. The effectiveness of the proposed approach is assessed using a simulated two-degree-of-freedom robotic manipulator subject to various faulty scenarios.


Last updated on 2021-03-08 at 10:54