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Relay protection fixed value update method, device and computer-readable storage medium

A technology of protection setting and updating method, applied in the field of power grid, can solve the problems of heavy workload, time-consuming and labor-intensive, disconnected protection setting, etc., to achieve the effect of improving efficiency and reducing workload

Active Publication Date: 2022-03-01
SHANGHAI SHANYUAN ELECTRONICS SCI & TECH CO LTD
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Problems solved by technology

This method requires a huge workload, especially to count the information of the electrical equipment of each branch line. Changes, so that the protection setting of the relay protection device in the monitoring system is always out of touch with the actual situation to varying degrees

Method used

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  • Relay protection fixed value update method, device and computer-readable storage medium
  • Relay protection fixed value update method, device and computer-readable storage medium
  • Relay protection fixed value update method, device and computer-readable storage medium

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Embodiment Construction

[0041] Such as figure 1 As shown, the embodiment of this specification provides a protection setting update method for a power grid relay protection device, including:

[0042] S110, such as figure 2 As shown, calculate the current protection setting value of the target relay protection device:

[0043] S111) Obtain the load characteristic data of the protection line corresponding to the target relay protection device, and the protection lines corresponding to different relay protection devices are different calculation segments.

[0044] Wherein, the load characteristic data can be obtained from the grid monitoring system.

[0045] S112) input load feature data into pre-trained and corresponding calculation section model with target relay protection device, obtain model output: I eq , ΣI e , I L.max , ΣI NM and ΣI NT .

[0046] When calculating the current protection setting value of different relay protection devices, it is necessary to use the calculation section m...

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Abstract

The invention provides a method, equipment and computer-readable storage medium for updating the protection fixed value of a power grid relay protection device. Compared with the traditional update method, the invention saves the performance parameters of input cables and electrical components, and statistics of each branch line Steps such as electrical equipment information can conveniently and efficiently calculate the current protection setting value of the target relay protection device, and then update it, reducing the workload and improving efficiency.

Description

technical field [0001] The invention belongs to the technical field of power grids, and in particular relates to a protection fixed value update method, equipment and computer-readable storage medium for a power grid relay protection device. Background technique [0002] For the power grid, such as the coal mine power grid, due to the migration of the coal mining face, the structure of the power supply network at the end of the power supply system, including the electrical equipment, is constantly changing, almost several times a month. Correspondingly, the power grid monitoring The protection setting value of the relay protection device in the mine also needs to be updated accordingly, otherwise, the relay protection device will malfunction or refuse to operate due to the inapplicability of the protection setting value, which will have a serious adverse effect on mine safety production. [0003] At present, in the power grid monitoring system, the current protection of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/26H02H3/00
CPCH02H7/26H02H3/006
Inventor 景杰张朝平张建设董振军庞现泽
Owner SHANGHAI SHANYUAN ELECTRONICS SCI & TECH CO LTD
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