CN108737210A - It is a kind of based on the intelligent substation configuration file check method monitored in real time - Google Patents

Abstract

A smart substation configuration file verification method based on real-time monitoring, the implementation steps of the method are as follows: (1) import the configuration file SCD file, extract the CRC code of the device; and store it in the corresponding database for later captured messages and Comparison of protection configuration files; (2) Acquisition of configuration files and message CRC codes; (3) For the modified content, the CRC code of the extraction device obtained from the analysis in step (1) and the configuration file and message obtained in step (2) (4) According to the conclusion of step (3), if the CRC codes are consistent, no alarm will be issued; if they are not consistent, for CID files, it will be displayed in a highly visual form whether they are inconsistent with SCD files; for message files, Compare the packet configuration. The present invention shows whether the configuration or message of the device is consistent with the current SCD in a highly visualized form; effectively solves the problem of difficult verification caused by the modification of the configuration file of the smart substation, and effectively improves the reliability level of the smart substation.

Description

A method for checking configuration files of smart substations based on real-time monitoring

technical field

The invention relates to a method for checking configuration files of an intelligent substation based on real-time monitoring, and belongs to the technical field of intelligent substations.

Background technique

my country's power grid construction has entered the stage of intelligence. At present, thousands of intelligent substations have been built across the country. During the operation of the smart substation, many factors will affect the change of the configuration file SCD in the station. However, due to the networking and informatization of the smart substation, the previous secondary circuit becomes virtual. Therefore, when the SCD is changed, it is difficult for field operators to judge whether the internal configuration of the device has changed accordingly.

The State Grid specification document "Smart Substation Online Construction and Diagnosis Technology" (Q/GDW 11361—2014) clearly stipulates the CRC check code sent to the device:

D.1 Specifications for CRC uploading of bay layer devices

After the protection configuration changes, the device cid file is read through the IEC61850 file service through manual triggering in the online monitoring system of the protection equipment.

D.2 Process layer device CRC sending specification

The process layer CRC information is actively sent out through the GOOSE virtual terminal. The specific configuration method is as follows:

Extend the DOI in LLN0 of the PI_PROT logic device under the G1 access point of the device to iedCRC to reflect the virtual loop CRC code and the latest download time, and add this data to the dsGOOSE0 data set of PI_PROT.

Contents of the invention

The purpose of the present invention is to effectively solve the problem of difficult verification caused by the modification of the configuration file of the smart substation and effectively improve the reliability level of the smart substation. This invention proposes a configuration file verification based on real-time monitoring of the smart substation method.

The technical solution for realizing the present invention is as follows, a method for checking the configuration file of a smart substation based on real-time monitoring, the method visually displays in the form of a high-visibility diagram whether the configuration file downloaded by the device is consistent with the SCD file after the modification of the configuration file of the smart substation Consistent, and the difference between the device configuration file and SCD is shown in the figure, so that users can check whether the device configuration is consistent with the site-wide configuration file SCD.

The implementation steps of the method are:

(1) Import the configuration file SCD file, extract the device CRC code; and store it in the corresponding database for comparison with the message and protection configuration file captured later;

(2) Acquisition of configuration files and message CRC codes;

(3) For the modification content, compare the CRC code of the extracting device obtained by the analysis of step (1) with the configuration file and the message CRC code obtained in the step (2);

(4) According to the conclusion of step (3), if the CRC codes are consistent, no alarm will be reported; if not, for the CID file, whether it is inconsistent with the SCD file is displayed in a high-visibility form; for the message file, the message configuration is compared.

The import configuration file SCD is implemented by parsing through the VTD-XML method.

The configuration file and the CRC code of the message are obtained, and the process layer and the station control layer network in the station are connected at the same time. The process layer network mainly obtains the CID configuration file of the protection or measurement and control device, and the process layer network mainly captures the device report of the intelligent terminal and the merging unit. text; analyze the corresponding CRC code according to the captured CID and the message.

The beneficial effect of the present invention is that the present invention provides a configuration file checking method based on online monitoring in the smart substation, which expresses the configuration modification in the station in a highly visualized form, which is convenient for users to check; it provides an effective verification method for the modified configuration. means; the present invention uses different verification methods for different devices to achieve full coverage. Help the on-site staff to quickly locate the changed part of the configuration modification. Improve the stability and reliability of power grid operation.

The invention conducts online analysis on various secondary interval layer device configuration files and process layer device messages in the smart substation, and displays whether the device configuration or messages are consistent with the current SCD in a highly visualized form. It effectively solves the problem of difficult verification caused by the modification of the configuration file of the smart substation, and effectively improves the reliability level of the smart substation.

Description of drawings

Fig. 1 is a flow chart of a method for checking configuration files of a smart substation based on real-time monitoring in the present invention.

Detailed ways

The specific embodiment of the present invention is shown in Fig. 1 .

In this embodiment, the method for checking configuration files of smart substations based on online monitoring includes the following steps:

(1) Import the SCD file and extract the CRC code of the device:

Import the configuration file SCD, analyze it through the VTD-XML method, extract the CRC codes of all devices in the SCD, and store them in the corresponding database for comparison with the captured messages and protection configuration files later.

(2) Acquisition of configuration files and message CRC codes:

At the same time, it is connected to the process layer and station control layer network in the station. The process layer network mainly obtains the CID configuration file of the protection or measurement and control device, and the process layer network mainly captures the device messages of the intelligent terminal and the merging unit. Analyze the corresponding CRC code according to the captured CID and message.

(3) For the modified content, compare the CRC code obtained in step (1) with the CRC code obtained in step (2).

(4) According to the conclusion of step (3), if the CRC codes are consistent, then do not report to the police;

(5) According to the conclusion of step (3), if the CRC codes are inconsistent, then display the alarm information;

For the comparison interval layer configuration file, it is displayed in a high-visual form whether it is inconsistent with the SCD file, and the specific reasons are analyzed;

For comparing process layer messages, display the message configuration, content, and give conclusions.

Claims (3)

1. A method for checking the configuration file of an intelligent substation based on real-time monitoring, characterized in that the method visually displays the configuration file SCD of an intelligent substation in the form of a high-visibility diagram, whether the configuration of the device download is consistent with the SCD file, And in the figure, it is shown that the device configuration file and the SCD are different parts, so that the user can check whether the device configuration is consistent with the overall station configuration file SCD; the implementation steps of the method are: (1) Import the configuration file SCD file, extract the CRC code of the device; and store it in the corresponding database for comparison with the captured messages and protection configuration files later; (2) Obtain configuration files and message CRC codes; (3) For the modified content, compare the CRC code of the extraction device analyzed in step (1) with the configuration file and message CRC code obtained in step (2); (4) According to the conclusion of step (3), if the CRC code is consistent, no alarm will be issued; if not, for the CID file, it will be displayed in a highly visual form whether it is inconsistent with the SCD file; for the message file, the message configuration will be compared. 2. A method for checking configuration files of smart substations based on real-time monitoring according to claim 1, characterized in that said imported configuration file SCD is implemented by parsing the VTD-XML method. 3. a kind of intelligent substation configuration file checking method based on real-time monitoring according to claim 1, is characterized in that, described configuration file and message CRC code acquisition, access station internal process layer and station control layer network simultaneously, The process layer network mainly obtains the CID configuration file of the protection or measurement and control device, and the process layer network mainly captures the device messages of the intelligent terminal and the merging unit; the corresponding CRC code is parsed out according to the captured CID and message.