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Variable-scale large-scale time sequence storage method for telemetering data of power grid

A technology of telemetry data and power grid, applied in database indexing, structured data retrieval, special data processing applications, etc., can solve the problems of historical curve distortion, occupying system hard disk storage capacity, and large data storage capacity, achieving efficient storage, reducing The effect of the amount of data storage

Inactive Publication Date: 2021-08-13
WUHU POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In the face of massive power grid telemetry data, a sampling point of 5 minutes is used, although the data storage capacity is reduced, but the data within this time interval is completely lost, resulting in distortion of the historical curve
If one storage point is stored in 30 seconds, the characteristics of the historical curve are retained, but it will result in a huge amount of data storage, occupying the storage capacity of the system hard disk, and at the same time, it is difficult to facilitate later data retrieval.

Method used

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Embodiment Construction

[0020] Referring to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention include the shape, structure, mutual position and connection relationship of each part, the function and working principle of each part, and the manufacturing process of the various components involved. And the method of operation and use, etc., are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0021] The variable-scale large-scale time series data storage method stores the obtained parameter samples in three ways, including conventional storage, extreme value storage, and slope storage.

[0022] Conventionally stored as historical data, discrete time series data values ​​are stored at fixed time intervals, such as figure 1 In the time period from t1 to t2, there is no maximum value, and th...

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Abstract

The invention discloses a variable-scale large-scale time sequence storage method for telemetering data of a power grid, which comprises the following steps of storing data according to three modes of conventional storage, extreme value storage and slope storage, respectively storing time interval endpoint values, respectively storing time interval endpoint values and extreme values, and respectively storing time interval endpoint values and median values. Through the storage method provided by the invention, efficient storage of the power grid telemetry data can be realized, and the characteristics of an original data curve are effectively reflected while the data storage amount is further reduced.

Description

technical field [0001] The invention relates to the field of time series data sampling, in particular to the field of grid telemetry data storage. Background technique [0002] With the continuous development of power grid automation technology, the range of telemetry data collected by dispatching automation systems such as power grid active power, reactive power, current, and voltage is becoming wider and wider. , while reflecting the characteristics of the power grid data curve has become a difficult problem in the operation and maintenance of the power grid. [0003] Power grid telemetry data has the characteristics of time series, and its telemetry data values ​​need to have time stamps. Currently, conventional telemetry data values ​​are stored every 5 minutes, and important telemetry data values ​​are stored every 30 seconds. Considering the scale of the power grid, the telemetry data storage volume is relatively large, and large-scale storage is required. [0004] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/22
CPCG06F16/2291Y02D10/00
Inventor 夏友斌潘文虎苏志朋宋铭敏周启扬俞鹏赵倩夏颖杭慧芳陈彦斌代业文
Owner WUHU POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER
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