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A Optimization Algorithm for the Frequency Domain Fault Location

This paper proposes a new optimization fault location algorithm. Based on distributed model, this algorithm builds frequency spectrum equation of faulty network with transmission line parameters to identify, extracts transient frequency spectrum, gives each error of harmonic corresponding weight to construct optimal objective function and finally solves the equations through simulated annealing (SA) algorithm. The algorithm will not be affected by the inaccurate parameters and makes full use of the extracted frequency spectrum. Simulation on EMTP shows high accuracy of the algorithm.