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

Abstract

The invention provides a transient wave recording data compression method and device, electronic equipment and a storage medium. The method comprises the steps: obtaining transient recording data comprising transient data and steady-state fundamental wave data, and the data in the first period of the transient recording data being steady-state fundamental wave data; filtering and down-sampling thesteady-state fundamental wave data to obtain compressed steady-state fundamental wave data; subtracting the compressed steady-state fundamental wave data from the transient recording data to obtain first to-be-detected data, the first to-be-detected data comprising transient data; performing noise detection on the first to-be-detected data, and determining a starting moment and an ending moment of the transient data; and intercepting transient data from the first to-be-detected data according to the starting moment and the ending moment, and taking the intercepted transient data and the compressed steady-state fundamental wave data as compressed transient recording data. According to the method, the purpose of compressing the transient recording data is achieved, and the storage capacityof the transient recording data can be reduced.

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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