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Method for acquiring multi-partition relay protection setting value

A relay protection and acquisition method technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve the problems of slow running speed, inability to obtain partitions, and high requirements for communication conditions, etc., and achieve the effect of reducing maintenance workload

Active Publication Date: 2014-06-11
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If all the protection settings of the current partition are obtained from the protection information system, the requirements for communication conditions are relatively high. Considering the technical conditions of the current protection information system, the speed of obtaining all the operation settings on site is very slow
However, the speed of obtaining the protection setting value from the offline setting database of the relay protection setting value is very fast, but the partition where the current protection device setting value is located cannot be obtained.

Method used

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  • Method for acquiring multi-partition relay protection setting value

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Embodiment Construction

[0022] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the present invention provides a method for obtaining a multi-zone relay protection fixed value, comprising the following steps:

[0024] Step 1 in the figure describes the acquisition of the current fixed value partition number from the protection information system, which is divided into two situations, one is to switch partitions uniformly in the whole network, and the other is to switch partitions for each plant station, that is, one plant station corresponds to one partition number .

[0025] Step 2 in the figure describes that the protection setting value of the corresponding partition is obtained from the offline setting database of the relay protection setting value. There are two methods. One is to directly skip the protection setting value of the non-current partition when reading the database. ...

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Abstract

The invention discloses a method for acquiring a multi-partition relay protection setting value. The method comprises the steps of acquiring the current setting value partition number from a protection information system, then acquiring a protection setting value corresponding to the partition from a relay protection setting value off-line setting database, leading out the protection setting value to a local data file, calling an FTP command to upload protection setting value data to a server appointed by a safety region III, automatically triggering and pushing the file to a data server of an on-line relay protection setting value checking system in a safety region II if a reverse isolation device detects updating of the file, leading the setting value data into the database by the on-line relay protection setting value checking system through name fuzzy matching, and mapping the setting value data to corresponding primary equipment of a power grid.

Description

technical field [0001] The invention belongs to the field of electric power system relay protection, and more specifically, the invention relates to a method for obtaining fixed values ​​of multi-region relay protection. Background technique [0002] The traditional setting calculation method of relay protection is based on the normal operation mode of the power grid, according to the daily operation rules of the power grid, considering the changes of the surrounding lines of the protection device and the conventional mode of the plant station, and determining the most stringent mode. The setting value in a harsh way meets the requirements of "four properties" (reliability, quickness, sensitivity and selectivity) to determine the protection setting value, and for the simultaneous outage of multiple outgoing lines of the same substation caused by infrastructure or power grid reconstruction projects , large-scale power plants and other special operating modes, it is too late t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26
Inventor 宁楠张小丽夏彦辉沈立胜毕兆东杨永祥俞秋阳张广梅郑杨斌方胜文
Owner GUIZHOU POWER GRID CO LTD
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