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Substation monitoring database access model and SCD consistency checking system and method

A technology of a substation monitoring and verification method is applied in the field of the access model of the substation monitoring database and the SCD consistency verification system, which can solve the problems of low reliability, inconvenience of directly reading original files manually, and labor and time consumption, so as to ensure the Consistency, improve the efficiency of secondary system debugging and testing, and ensure the effect of operating reliability

Active Publication Date: 2017-05-10
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual operation of the real-time memory database of the station control layer of the smart substation, in order to confirm the correctness and consistency of the access model in the real-time monitoring database and the substation SCD, it often takes a lot of manpower and time, the workload is huge, and the efficiency is low
This is because the access model and SCD files in the real-time monitoring database are very large, and it is very inconvenient to read the original files manually and the reliability is not high.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0046] This embodiment discloses a substation monitoring database access model and SCD consistency verification system, including an access model analysis module, an SCD analysis module and a consistency verification module, wherein,

[0047] The access model analysis module analyzes the total number of IEDs of the access model, the original analog signal and switch signal of each IED, and the subordinate structures of each IED;

[0048] The SCD parsing module parses the total number of IEDs in the SCD, the original analog signal and switch signal of each IED, and the subordinate structures of each IED, wherein the SCD includes the database in the SSD.

[0049] The consistency verification module respectively verifies the signal consistency and structural consistency between the access model and the SCD according to the information of the access model analysis module and the SCD analysis module.

[0050] SCD is used as a standard file, so the consistency verification...

Embodiment 3

[0060] In this embodiment, on the basis of Embodiment 2, the resolution steps of the SCD and the access model are refined, namely:

[0061] Analyze the access model, obtain the switching and analog signals of each IED in the access model, and display the switching and analog signals of each IED on the interface. In the access model XML, find the simulation of various signals through the following paths Quantity and switch quantity: Station->secondary->ied->analog || status.

[0062] Read from the SCD to obtain the switching and analog signals of each data set under the LN0 node under the S1 node of each IED, and display the switching and analog signals of each IED on the interface; obtain the SCD of the smart substation Switching and analog signals owned by each data set under the LN0 node under the S1 node of each IED.

[0063] Parse the structure of all levels under the primary of the access model, and find the structure of all levels through the following path: Sta...

Embodiment 4

[0065] In this embodiment, on the basis of Embodiment 2, the consistency verification steps are refined, namely:

[0066] Check the consistency between the access model and the SCD structure at all levels, and compare the structural relationships at all levels one by one.

[0067] specific:

[0068] Based on each IED in the SCD, divide the two types of signals, analog and switch, and verify the access model and each IED in the SCD respectively. The verification results include three situations: new IED, deleted IED, and the same IED, including the access model There are three situations in which IED is added relative to SCD, the access model lacks IED relative to SCD, and the access model has the same IED as SCD; the string matching algorithm GST is used to compare the description part and reference part of each signal; the comparison shows the access model and The difference between the switching values ​​of each IED in the SCD includes four differences: the switchin...

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Abstract

The invention discloses a substation monitoring database access model and SCD consistency checking system and method. The method comprises the steps of step A, analysis of SCD and access model, and step B, consistency check. In the step A, when the SCD is for analysis each piece of IED information of the SCD is acquired, when the access model is for analysis, each piece of IED information of the access model is acquired. The step B comprises a signal consistency check and a structure consistency check which are all based on the IED of the SCD, the signal consistency check is the check and comparison of signal information of corresponding IED of the access model and the SCD, the structure consistency check is the check and comparison of structure information of corresponding IED of the access model and the SCD. The substation monitoring database access model and SCD consistency checking system and method complete the check of consistency of the access model and the SCD of the intelligent substation to enhance the efficiency of a second time system commissioning and test, and guarantee the operation reliability.

Description

technical field [0001] The invention relates to the field of substation equipment, in particular to a substation monitoring database access model and SCD consistency checking system and method. Background technique [0002] The correct and reliable operation of the smart substation is closely related to the correctness of the configuration files of the equipment and the substation. In the actual operation of the real-time memory database of the station control layer of the smart substation, in order to confirm the correctness and consistency of the access model in the real-time monitoring database and the substation SCD, it often takes a lot of manpower and time, the workload is huge, and the efficiency is low. This is because the access model and SCD files in the real-time monitoring database are very large, and it is inconvenient and unreliable to directly read the original files manually. [0003] Therefore, there is a need for a system that can automatically verify the ...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F11/07
CPCG06F11/0751G06F16/25
Inventor 刘明忠常晓青郑永康窦仁辉蔡骥然侯兴哲程瑛颖童晓阳张友强袁浩耿明志任辉杜杰丁媛媛张杰夫张旭泽杨林满宋欣洲孟雷陈迟
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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