Waveform simulation method for simulating power distribution network line fault

Abstract

The invention discloses a waveform simulation method for simulating a power distribution network line fault, and the method comprises the steps: employing an upper computer serial port tool, a plurality of dual-channel waveform generators, and a synchronous trigger to form a whole simulation test environment; the upper computer serial port tool downloads the simulated fault waveform and triggers the output start and stop of the waveform generator through data downloading and command sending; the waveform generator simulates waveforms of voltage and current changes of the power transmission line during grounding of various types of faults and quantifies the waveforms to generate data, and the waveform generator receives the waveform data; and the synchronous trigger cooperatively performs synchronous time synchronization and trigger output on the waveform generator. The system can simulate actual lines to generate grounding faults, simulate voltage and current changes of nodes before and after fault points during various types of grounding faults, trigger a fault detection device to generate recorded waves and send the recorded waves to a master station, and provide a test environment for master station development.

Description

technical field [0001] The invention belongs to the technical field of distribution network fault detection, and more specifically relates to a waveform simulation method for simulating distribution network line faults. Background technique [0002] The fault detection device with wave recording function is on each node of the power transmission line. When a fault occurs, the waveform data needs to be recorded and sent to the master station for the master station to analyze and locate the fault according to the waveform of each node position of the line. However, at the beginning of the design, the master station cannot efficiently and conveniently obtain the fault waveform information of the real line for initial design, and the master station needs the fault detection device to be able to send the voltage and current waveforms on the line when the fault occurs, so as to verify the algorithm. It can accurately locate the fault in the real line. At this time, a waveform emu...

AI Technical Summary

Problems solved by technology

However, at the beginning of the design, the master station cannot efficiently and conveniently obtain the fault waveform information of the real line for initial design, and the master station needs the fault detection device to be able to send the voltage and current waveforms on the line when the fault occurs, so as to verify the algorithm. It can accurately locate the fault in the real line

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