GOOSE message anomaly online detection method

A detection method and message technology, applied in the direction of digital transmission system, data exchange network, electrical components, etc., can solve problems such as reducing troubleshooting efficiency, device self-description file configuration errors, and the impact of normal sending of GOOSE messages, etc., to improve Maintain efficiency, reduce complexity, and save memory resources

Inactive Publication Date: 2014-03-26
SHANDONG UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] GOOSE messages have their own sending characteristics, regardless of the configuration error of the device self-description file (CID) of the communication device or other physical factors, it may affect the normal sending of GOOSE messages
At present, in the commissioning process of substations, maintenance personnel capture packets on site, and then use packet analysis software for static analysis, which will undoubtedly reduce the efficiency of troubleshooting

Method used

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Embodiment

[0034] Embodiments of the present invention are as follows: an online detection method for GOOSE message anomalies, which is realized by a computer monitoring system configured in a substation, and mainly aims at the following types of anomalies:

[0035] 1) The format of the GOOSE message is wrong;

[0036] 2) GOOSE message configuration error;

[0037] 3) GOOSE message restart;

[0038] 4) GOOSE message status changes (event occurs);

[0039] 5) The state of the GOOSE message changes falsely;

[0040] 6) GOOSE message out of sequence;

[0041] 7) The GOOSE message is interrupted;

[0042] 8) GOOSE message sending timeout;

[0043] 9) The GOOSE message is in test mode,

[0044] The method steps are as follows:

[0045] 1] For abnormality 1), there are 3 discrimination conditions. Condition 1: Parse the header information of the GOOSE message and extract the value of the length field. This value should be equal to the PDU length of the GOOSE message plus 8 or the length...

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Abstract

A GOOSE message anomaly online detection method belongs to the field of electric power communication system. Format and configuration information judgment is firstly carried out on a frame message. If any one of the two items is erroneous, follow-up analysis of the frame message is terminated. Secondly, sqNum and stNum logic analysis is proceeding if there are no errors in both the format and the configuration information. Thirdly, no matter there are logic errors in sqNum and stNum, GOOSE message interrupt and delay judgments are both required. Finally, no matter there is delay, whether the message is in the test mode needs to be judged. Thus, concise and comprehensive analytical judgment of the frame message is realized, and various anomalies of the GOOSE message are positioned accurately based on the judgment results. The method provided by the invention has advantages of concise logic and comprehensive analysis. In addition, by the scheme, debugging efficiency of a substation can be raised effectively, and anomaly detection with meticulous logic can be realized.

Description

technical field [0001] The invention relates to an online detection method for abnormal GOOSE messages, belonging to the technical field of electric power communication systems. Background technique [0002] The application of the Generic Object Oriented Substation Event (GOOSE) message is a mechanism used in the IEC61850 standard to meet the fast message requirements of the substation automation system. By configuring a set of computer monitoring system with advanced technology and complete functions in the substation, instead of maintenance personnel, it can undertake the tasks of control, monitoring, signal measurement and data statistical analysis. The monitoring system adopts the IEC61850 communication standard, utilizes the fast Ethernet feature, and realizes the information exchange between the protection devices and the interlocking function of the monitoring interval through the GOOSE message. The monitoring system and protection system have unified modeling, unifi...

Claims

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Application Information

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IPC IPC(8): H04L12/26H02J13/00
CPCY02E60/00Y04S10/16
Inventor 白智全朱立朋李振杰王兵孔凡堂
Owner SHANDONG UNIV
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