Abstract

This paper presents the accurate fault location in a two-terminal line by usingLeast Error Squares.The presenting algorithm, Least Error Squares (LES) technique is used to estimate the phasors of the fundamental and harmonic frequency components of voltages and currents. It is based on minimizing the mean square error between the actual and assumed waveforms. The developed fault-location algorithm has been tested for symmetrical faults, fault resistance values and inception angles. The output results of the presenting algorithm give accurate results for all simulated cases. The algorithm is implemented by using MATLAB/Simulink.

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