Distribution Network Fault Location Based on Modal Traveling Wave Time Difference and Clustering Algorithm
Bad weather,human activities,and other factors may cause faults in.operating power grids.The complexity of grid structure increases the difficulty of fault location(FL).This work proposed a novel FL scheme based on the arrival time difference(TDOA)information of the modal traveling wave(MTW)with asynchronous sampling in the network.First the faulty area was determined by searching the minimum TDOA of the MTW.Then a clustering algorithm was ap-plied to analyze fault wave forms in the faulty area.Finally the accurate FL was estimated by solving the objective function of absolute distance between FL and multiple FL candidates.Various simulations were performed in the one-bus system to verify the utility of the proposed method.
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