Power distribution network grounding fault identification method based on near fault point calculation
The invention relates to a power distribution network grounding fault identification method based on near fault point calculation, and the method comprises the following steps: S1, when a single-phase grounding fault occurs in a power distribution network line, the zero-sequence voltage rises, and a...
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creator | LIU SHUANG QIE WEI ZHANG SICONG JIA XIAOWEI ZHAO HAIPENG XU WANNING LIU PENG YUAN DONGMEI HU YIFEI LIU XINBO CHEN GUANGCHENG LI ZIMING |
description | The invention relates to a power distribution network grounding fault identification method based on near fault point calculation, and the method comprises the following steps: S1, when a single-phase grounding fault occurs in a power distribution network line, the zero-sequence voltage rises, and an intelligent edge calculation terminal at the head end of each line records the time scale of the fault moment, and transmits the fault occurrence moment t to all sensor centers under the line; s2, each sensor center sends the three-phase recording waveform at the fault moment to an intelligent edge computing terminal of the line; s3, the intelligent edge computing terminal synthesizes a zero-sequence current, and performs fault judgment based on a parameter identification method to directly position a fault section; s4, the intelligent edge computing terminal uploads fault section information to the power distribution automation master station; according to the invention, positioning and removal of faults and pow |
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s2, each sensor center sends the three-phase recording waveform at the fault moment to an intelligent edge computing terminal of the line; s3, the intelligent edge computing terminal synthesizes a zero-sequence current, and performs fault judgment based on a parameter identification method to directly position a fault section; s4, the intelligent edge computing terminal uploads fault section information to the power distribution automation master station; according to the invention, positioning and removal of faults and pow</abstract><oa>free_for_read</oa></addata></record> |
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subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
title | Power distribution network grounding fault identification method based on near fault point calculation |
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