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Modelling Inductive Sensors for Arc Fault Detection in Aviation.

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Summary
This summary is machine-generated.

Detecting series arcs in aircraft high-voltage direct current (HVDC) systems is crucial. This study presents a novel inductive sensor design method for reliably capturing the high-frequency pulses generated by these dangerous arcs.

Keywords:
all-electric aircraftfinite elements methodinductive sensorsmodellingmore-electric aircraftseries arcs

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Area of Science:

  • Electrical Engineering
  • Aerospace Engineering
  • Materials Science

Background:

  • Modern aircraft increasingly utilize high-voltage direct current (HVDC) systems to meet rising power demands.
  • Low-pressure environments in aviation exacerbate ionization phenomena like arcing, posing significant safety risks.
  • Conventional detection methods are inadequate for identifying series arcs in HVDC systems.

Purpose of the Study:

  • To develop a reliable method for designing inductive sensors capable of detecting series arc faults in aircraft HVDC systems.
  • To address the critical need for advanced arc detection to ensure the safety and development of electric aviation.

Main Methods:

  • Proposing a design methodology for inductive sensors based on the physics of high-frequency (HF) pulse interaction.
  • Conducting a comparative analysis of different sensor topologies.
  • Utilizing theoretical study, finite element method (FEM) modeling, and laboratory frequency response testing.

Main Results:

  • Identified key parameters influencing HF pulse detection in inductive sensors.
  • Validated the sensor design methodology through laboratory tests and real-world DC series arc detection scenarios.
  • Demonstrated the effectiveness of inductive sensors based on HF pulse detection for series arc faults.

Conclusions:

  • The proposed sensor design methodology enables effective detection of series arcs in HVDC systems.
  • Inductive sensors offer a promising solution for arc fault detection due to their sensitivity, cost, and adaptability.
  • This research contributes to enhancing the safety and reliability of future electric aircraft.