کنفرانس مهندسی برق ایران

صفحه اصلی / سی و چهارمین کنفرانس بین المللی مهندسی برق

Fault Zone Identification and Fault Location in Hybrid Three-Terminal Transmission Lines

نویسندگان :

Mahyar Abasi¹ Seyed Saeed Khezri²

1- دانشگاه اراک 2- موسسه آموزش عالی کارون

کلمات کلیدی :

Fault location،Hybrid AC-DC microgrid،Local mode decomposition،Traveling Waves

چکیده :

This article presents a comprehensive protection scheme for hybrid networks with a T-off configuration, connecting an industrial-residential microgrid to HVDC and HVAC lines. Using synchronous voltages from four key points, the method applies Enhanced Local Mode Decomposition (LMD) and Hilbert Transform (HT) to extract traveling wave frequencies. This approach identifies fault sections and estimates locations without requiring wave propagation speed. Simulations show high accuracy with an average error of 0.41 km, ensuring reliability for modern hybrid power systems.

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