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A New Non-Iterative Fault Location Approach for Three-Terminal Nonhomogeneous Transmission Lines Not Requiring Terminal Synchronization
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DOI：10.1109/TPWRD.2026.3666693.png)
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Abstract
En 中文
This study presents a closed-form fault location (FL) scheme for three-terminal transmission lines (TLs) with multiple nonhomogeneous segments, using unsynchronized measurements (UMs). The approach introduces the Faulty Branch Selector (FBS) and Fault Location Index (FLI) to identify the faulty branch, segment, and exact location without relying on synchronization angles, fault type, and fault-path/source impedance estimations. Field integration within Taiwan Power Company (Taipower)'s platform confirms the approach's practical feasibility, with both simulations and field data demonstrating its accuracy over Intelligent Electronic Device (IED)-based and existing methods.
Keywords:
Synchronization
Fault location
Junctions
Transmission line measurements
Power transmission lines
Logic
Indexes
Artificial intelligence
Accuracy
Phasor measurement units
Three terminals
multi-segment transmission lines
exemption from synchronization
non-iteration
FBS
FLI
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9.1K
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