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This paper proposes a novel method for rapid and accurate detection of open-circuit faults in the switching devices of single-phase Neutral Point Clamped (NPC) inverters. The approach employs the combination of average current analysis and Model Predictive Control (MPC) to achieve fault identification without requiring additional hardware or computationally intensive calculations. Furthermore, the work investigates the capability of MPC to tolerate open-circuit faults, specifically in clamping diodes. This tolerance has the potential to enhance the overall system resilience and performance during fault scenarios. The effectiveness of the proposed fault detection method is validated through simulation analysis.

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OC Fault Detection in Single Phase NPC Inverter

  • 会议论文

  • 发表日期：

    2025年

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  • H. Mechri,
  • A. Kheldoun,
  • A. Ammar

摘要

This paper proposes a novel method for rapid and accurate detection of open-circuit faults in the switching devices of single-phase Neutral Point Clamped (NPC) inverters. The approach employs the combination of average current analysis and Model Predictive Control (MPC) to achieve fault identification without requiring additional hardware or computationally intensive calculations. Furthermore, the work investigates the capability of MPC to tolerate open-circuit faults, specifically in clamping diodes. This tolerance has the potential to enhance the overall system resilience and performance during fault scenarios. The effectiveness of the proposed fault detection method is validated through simulation analysis.