Method, device and equipment for checking steady-state and dynamic electrical quantity data of regional power grid

A technology for regional power grids and electrical quantities, applied in measurement devices, measurement of electrical variables, data processing applications, etc., can solve problems such as large workload and low calibration accuracy, and achieve short time consumption, reliable results, and reduced redundancy. Effect

Active Publication Date: 2022-03-11
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method, device and equipment for checking the steady-state and dynamic electrical quantity data of the regional power grid, which are used to solve the problem of low accuracy of the existing check methods for the steady-state and dynamic electrical quantity data of the power grid. , and technical issues with heavy workload

Method used

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  • Method, device and equipment for checking steady-state and dynamic electrical quantity data of regional power grid
  • Method, device and equipment for checking steady-state and dynamic electrical quantity data of regional power grid
  • Method, device and equipment for checking steady-state and dynamic electrical quantity data of regional power grid

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Embodiment 1

[0052] figure 1 It is a flow chart of the steps of the method for checking the steady-state and dynamic electrical quantity data of the regional power grid described in the embodiment of the present invention.

[0053] Such as figure 1 As shown, the embodiment of the present invention provides a method for checking the steady-state and dynamic electrical quantity data of the regional power grid, including the following steps:

[0054] S10. Discretely sample the steady-state signal of the regional power grid at the first sampling frequency to obtain a steady-state data sequence composed of k steady-state electrical quantity data; perform discrete sampling on the dynamic signal of the regional power grid at the second sampling frequency to obtain k A dynamic data sequence composed of dynamic electrical quantity data.

[0055] It should be noted that the steady-state electrical quantity data and dynamic electrical quantity data of the regional power grid are mainly obtained, an...

Embodiment 2

[0094] Figure 4 It is a frame diagram of the device for checking the steady-state and dynamic electrical quantity data of the regional power grid described in the embodiment of the present invention.

[0095] Such as Figure 4 As shown, the embodiment of the present invention also provides a steady-state and dynamic electrical quantity data checking device for a regional power grid, including a data acquisition module 10, a data sequence module 20, a sequence module 30, a feature sequence module 40, and a difference processing module 50 And judgment module 60;

[0096] The data acquisition module 10 is used to discretely sample the steady-state signal of the regional power grid at a first sampling frequency to obtain a steady-state data sequence composed of k steady-state electrical quantity data; Discrete sampling to obtain a dynamic data sequence composed of k dynamic electrical quantity data;

[0097] The data sequence module 20 is used to perform differential processin...

Embodiment 3

[0105] An embodiment of the present invention provides a steady-state and dynamic electrical quantity data checking device for a regional power grid, including a processor and a memory;

[0106] a memory for storing program codes and transmitting the program codes to the processor;

[0107] The processor is configured to execute the above method for checking the steady-state and dynamic electrical quantity data of the regional power grid according to the instructions in the program code.

[0108] It should be noted that the processor is configured to execute the steps in the embodiment of the above-mentioned method for checking the steady-state and dynamic electrical quantity data of the regional power grid according to the instructions in the program code. Alternatively, when the processor executes the computer program, the functions of the modules / units in the above system / device embodiments are realized.

[0109] Exemplarily, a computer program can be divided into one or m...

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Abstract

The invention relates to a method, device and equipment for checking steady-state and dynamic electric quantity data of a regional power grid. The method obtains the same number of steady-state electric quantity data and dynamic electric quantity data of the regional power grid to form a corresponding steady-state data sequence and The dynamic data sequence, the difference data sequence is obtained by making a difference between the steady-state data sequence and the dynamic data sequence, and the steady-state data sequence, the dynamic data sequence and the difference data sequence are normalized, feature extracted, and the calculation of the eigenvalue is obtained. The corresponding steady-state feature sequence, dynamic feature sequence and difference feature sequence, and the absolute value of the difference between any two adjacent eigenvalues ​​in the difference feature sequence, select the absolute value of the largest feature difference as The maximum characteristic difference, comparing the maximum characteristic difference with the difference threshold, can identify whether the steady-state electrical quantity data is consistent with the dynamic electrical quantity data, and realize data verification and identification, with a small amount of calculation and a short time-consuming.

Description

technical field [0001] The invention relates to the technical field of power grid automation, in particular to a method, device and equipment for checking steady-state and dynamic electrical quantity data of a regional power grid. Background technique [0002] With the development of power grid automation technology, the number of PMU power management units and remote terminal unit RTU devices at the substation side is gradually increasing, and the quality requirements for them are also getting higher and higher. The RTU device can only provide steady-state, low-sampling density, and asynchronous power grid time-section information; although the PMU power management unit can perform synchronous measurements on the power system on a time scale of milliseconds, it cannot It cannot completely replace the SCADA system of the grid. [0003] For quite a long time, there will inevitably be a situation where SCADA system and PMU power management unit coexist and complement each oth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06F17/16G06F17/18G01R31/00G06Q50/06
CPCG06F17/16G06F17/18G01R31/00G06Q50/06G06F2218/08
Inventor 冯善强马凯何英发王之纯叶向前
Owner GUANGDONG POWER GRID CO LTD
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