Contribution of the two rectifiers reconfiguration to fault tolerance connected to the grid network to feed the GMAW through processor-in-the-loop

Authors

  • Omar Fethi Benaouda Research Center in Industrial Technologies CRTI, P.O.Box 64, Cheraga 16014, Algiers, Algeria.
  • Badreddine Babes Department of physics, Faculty of exact sciences and informatics, PCME laboratory, University of Djelfa, Algeria
  • Azzedine Bendiabdellah Diagnostic Group, LDEE laboratory, Faculty of Electrical Engineering, University of Sciences and Technology of Oran MB, BP 1505 El-M’naouer, Oran 31000, Algeria
  • Mohamed Bouchakour Department of physics, Faculty of exact sciences and informatics, PCME laboratory, University of Djelfa, Algeria

Abstract

This study aims to propose a new diagnosis technique based on the Park’s vector and the polar coordinates of electric currents for the detection and location of open-circuit faults (OC) at the level of two rectifiers connected to the grid network to feed the Gas Metal Arc Welding process (GMAW). This diagnosis technique allows the early location of faulty switches (Thyristors) to overcome the negative effect of faulty rectifiers on welding current, welding voltage, and droplet diameter. For that, the reconfigurable rectifiers have been integrated to accomplish the welding process. The proposed diagnosis technique is applied to reconfigurable rectifiers connected to the GMAW system through numerical simulations using MATLAB/Simulink and real-time processor-in-the-loop (PIL) implementation via DSpace ds 1103 card. The simulation and PIL experimental results show similar trends and great success of the diagnosis technique and the two rectifiers reconfiguration for overcoming the open circuit faults and obtaining high welding quality while maintaining the work-piece and avoiding the distortions caused by the faulty rectifiers, which affecting the grid network and on the GMAW system at the same time.

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Published

2023-10-18

Issue

Engineering Review, Vol. 43, No. 1

Section

Articles

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