Abstract
The problem of fault line selection for the distribution network of neutral point via arc suppression coil grounding has not been solved for a long time. Based on this, a single-phase ground fault line selection method based on dynamic time bending distance similarity is proposed. Firstly, the single-phase ground fault feature analysis of the distribution network of the zero-mode network is used to determine the electrical characteristic quantity of the single-phase ground fault line selection. Then, the faulty electrical feature quantity is improved by the dynamic time bending distance algorithm to form the distance matrix. The similarity data processing is performed on the matrix to obtain a line selection vector, and then the fault line is selected. Finally, the single-phase ground fault system model of 10kV distribution network is constructed by Matlab/Simulink. The correctness and feasibility of single-phase ground fault line selection method based on the dynamic time bending distance similarity is verified by simulation under different fault conditions.
Published Version
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