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A segment location method based on positive-sequence component of full current for active distribution network

With the vigorous development of new power distribution systems, a large number of distributed power sources are connected to the power distribution networks, which reduces the reliability of traditional segment location methods. In this regard, a segment location method is proposed, which is based on the waveform similarity of the amplitude of full current positive-sequence component after a fault. The Fréchet distance of the waveforms at both ends of the faulty segment is much larger than that of the non-faulty segment, which is drawn by analyzing the normalized amplitude waveforms of the full current positive-sequence component at both ends of each segment after the fault. The simulation results show that the method is not affected by the access position of the distributed power source and the fault resistances, and has strong applicability and broad application prospects.