Transient wave recording data compression method, device, electronic equipment and storage medium

Abstract

The transient state wave recording data compression method, device, electronic equipment and storage medium provided by the present invention, the method includes: obtaining transient state wave recording data; the transient state wave recording data includes transient state data and steady state fundamental wave data; The data in the first period of the wave data is the steady-state fundamental wave data; the steady-state fundamental wave data is filtered and down-sampled to obtain the compressed steady-state fundamental wave data; the transient record wave data and the compressed Subtracting the steady-state fundamental wave data to obtain the first data to be detected; the first data to be detected contains transient data; performing noise detection on the first data to be detected to determine the start time and end time of the transient data; At the beginning time and the end time, the transient data is intercepted from the first data to be detected, and the intercepted transient data and the compressed steady-state fundamental wave data are used as the compressed transient recording data. The invention realizes the purpose of compressing the transient wave recording data, and can reduce the storage capacity of the transient state wave recording data.

Description

technical field [0001] The present invention relates to the technical field of power systems, in particular, to a transient recording data compression method, device, electronic equipment and storage medium. Background technique [0002] my country's power system fault recording is developing rapidly. It can automatically and accurately record the changes of various electrical quantities before and after the fault, record the whole process of system frequency changes, and record transient information. Through the recording of these information, the power The cause of the failure provides a certain reference value. However, as the voltage sampling rate increases, the disk space usage also increases sharply. [0003] In order to reduce the data volume of the power waveform data, the data compression method can be used for compression processing, thereby reducing the data size and facilitating storage and transmission, and the smaller the transient part of the compressed file i...

AI Technical Summary

Problems solved by technology

At present, the commonly used compression method is to perform data compression at the data acquisition end, without considering the redundant data in the transient recording data that is meaningless for later fault analysis, so that although the transient recording data is compressed to a certain extent, it is not necessary Fault analysis is of little practical significance

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