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Main and backup protection fixed value remote decoupling tuning method

A technology of backup protection and protection setting, which is applied in the direction of emergency protection circuit devices, electrical components, information technology support systems, etc., and can solve problems such as refusal to operate, wrong setting value input, and malfunction of relay protection devices

Active Publication Date: 2018-02-02
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many information interaction links required to modify the setting value remotely. If the intermediate communication link or the internal communication buffer area of ​​the protection device is wrong, it may lead to wrong setting value input, thus causing the relay protection device to malfunction or refuse to operate.

Method used

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  • Main and backup protection fixed value remote decoupling tuning method

Examples

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Comparison scheme
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Embodiment 1

[0022] Please refer to figure 1 , figure 1 It is a schematic diagram of a remote decoupling setting method for main and backup protection.

[0023] When the remote master station sets the value of the relay protection device, the protection device is put into the "remote control input" platen and "remotely modify the fixed value" platen.

[0024] The main protection setting value of the call relay protection device on the main station, such as "differential action current setting value" and so on.

[0025] The master station calculates the fixed value of the backup protection of the relay protection device, such as "the fixed value of the grounding distance section Ι", "the fixed value of the grounding distance section ΙΙ" and so on.

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Abstract

The invention discloses a main and backup protection fixed value remote decoupling tuning method. The method comprises the steps that: a relay protection device main protection fixed value is called in a main station, then the main station calculates a relay protection device backup protection fixed value, finally the main station sends the protection fixed values to a relay protection device in the mode of a fixed value file, and the relay protection device carries out protection fixed value tuning. The invention discloses the main and backup protection fixed value remote decoupling tuning method, only the backup protection fixed value is tuned, the main protection fixed value is not changed, and the method is safe and reliable relay protection device fixed value remote tuning method.

Description

technical field [0001] The invention relates to the field of electric power system relay protection, and more specifically, relates to a remote decoupling setting method for main and backup protection fixed values. Background technique [0002] The correctness of the setting value of the relay protection device plays a very important role in its correct action and the safe operation of the power grid. At present, the relay protection device has basically supported the function of modifying the setting value remotely. However, there are many information interaction links required to modify the setting value remotely. If the intermediate communication link or the internal communication buffer area of ​​the protection device is wrong, it may lead to wrong setting value input, thus causing the relay protection device to malfunction or refuse to operate. In the power production and operation across the country, the management mode of local operation is still mostly used to modif...

Claims

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Application Information

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IPC IPC(8): H02J13/00H02H7/22
CPCH02H7/22H02J13/0006Y02E60/00Y04S10/20
Inventor 王峰李一泉黄明辉吴梓亮曾耿晖张葆红屠卿瑞杨韵陈志光罗跃胜
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD