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On-line power telecontrol IEC (integrated ethernet chip) 104 transmission anomaly detection method

An IEC104, anomaly detection technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problem of no online monitoring, analysis, diagnosis methods, etc., to improve the maintenance level, ensure normal operation, and reduce work intensity.

Active Publication Date: 2015-04-01
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the running IEC104 telecontrol communication, especially the monitoring of multi-plant stations and a large number of channel transmissions in actual operation, there is currently no effective online monitoring, analysis, and diagnosis method

Method used

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  • On-line power telecontrol IEC (integrated ethernet chip) 104 transmission anomaly detection method
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  • On-line power telecontrol IEC (integrated ethernet chip) 104 transmission anomaly detection method

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Embodiment Construction

[0056] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0057] Most of the telecontrol transmission protocols currently operated by power dispatching are based on the IEC104 protocol transmitted over the TCP / IP network. The IEC104 protocol includes three types of formats, namely, numbered information transmission (I format), numbered monitoring function (S format) and Unnumbered control functions (U format). In order not to affect the normal business transmission, the present invention adopts the mirror interception method to obtain the transmission message, and through a set of multi-dimensional characteristic indicators, conducts online abnormal detection for the automatic telecontrol transmission of electric power dispatching, and then realizes the real-time monitoring of electric power telecontrol Monitoring, fault warning.

[0058] in:

[0059] 1. IEC104 communication multi-dimensi...

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Abstract

The invention discloses an on-line power telecontrol IEC (integrated ethernet chip) 104 transmission anomaly detection method and relates to a power dispatching telecontrol network transmission anomaly detection method. At present, an effective on-line monitoring, analysis and diagnosis method for operating IEC104 telecontrol communication is absent. The method comprises the following steps of (1) monitoring and capturing messages; (2) splicing the messages; (3) analyzing the messages by using an IEC104; (4) combining and counting sub-stations; (5) calculating multi-dimensional characteristic indexes; (6) diagnosing anomaly, wherein anomaly diagnosis comprises conventional transmission anomaly judgment and control transmission anomaly judgment. According to the technical scheme, working strength is reduced, and the power dispatching automatic operation maintenance level is improved; abnormal conditions in the control information transmission process can be actively discovered, and the normal operation of a power dispatching control system is ensured; transmission faults are intuitively and definitely detected, and invisible faults can be warned early; network faults or substation communication faults are judged.

Description

technical field [0001] The invention relates to a method for detecting abnormal transmission of electric power dispatching telecontrol network, in particular to an online electric telecontrol IEC104 transmission abnormal detection method. Background technique [0002] With the development of power grid dispatching technology and the improvement and reliability of automation equipment, the operation mode of "unattended and few people on duty" in substations is promoted. As the core support for the safe operation of the power grid, the dispatching automation system is becoming more and more critical, and the automation system is increasingly becoming a guarantee for the power grid. The key link of safe, high-quality, reliable and stable operation. The safe and reliable transmission of power telecontrol information is the basic prerequisite for the normal operation of the power automation system. In actual production work, the abnormality and fault discrimination of the automat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26H04L29/08H02J13/00
Inventor 陈利跃方兴其马国梁章立宗卢冰陶涛何星
Owner STATE GRID CORP OF CHINA