CN104506363A - Method for extracting device identifiers in power system - Google Patents

Method for extracting device identifiers in power system Download PDF

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Publication number
CN104506363A
CN104506363A CN201410833048.0A CN201410833048A CN104506363A CN 104506363 A CN104506363 A CN 104506363A CN 201410833048 A CN201410833048 A CN 201410833048A CN 104506363 A CN104506363 A CN 104506363A
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CN
China
Prior art keywords
device identification
message
power system
device identifiers
extraction element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410833048.0A
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Chinese (zh)
Inventor
任波
汪勇飞
袁成伟
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Wuhan Zhongyuan Huadian Science & Technology Co Ltd
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Wuhan Zhongyuan Huadian Science & Technology Co Ltd
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Application filed by Wuhan Zhongyuan Huadian Science & Technology Co Ltd filed Critical Wuhan Zhongyuan Huadian Science & Technology Co Ltd
Priority to CN201410833048.0A priority Critical patent/CN104506363A/en
Publication of CN104506363A publication Critical patent/CN104506363A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/18Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]

Abstract

The invention relates to a method for extracting device identifiers in a power system. The method includes steps of monitoring data frames and extracting the device identifiers; analyzing the device identifiers; reporting an alarm; reporting the mapping relation of the device identifiers and ports; structuring a network topological graph of a transformer substation. The method for extracting the device identifiers is used by detecting SV or GOOSE data frames, so that interconnection relation of various devices can be clearly identified. Without transmitting redundant monitoring data frames and occupying too much CPU (central processing unit) resources, the defect that switching equipment is incapable of analyzing tri-tier information is overcome, so that the network topological structure becomes possible on second-layer equipment, and a visual method is provided for positioning and overhauling of digital substation devices.

Description

A kind of method of extraction element mark in electric power system
Technical field
The invention belongs to the technical field utilizing electric power system, relate to communication among process layers of digitalized System and method for, particularly relate to the method for extraction element mark in a kind of electric power system.
Background technology
Implement the ripe gradually of technology along with digital transformer substation and go deep into, the application implementation of digital transformer substation is from developing into procedure-oriented layer towards station level and wall at first, the appearance of process layer is the key character that digital transformer substation is different from traditional transformer station, especially the application of electronic mutual inductor and intelligent switch is ripe gradually, the design of transforming plant apparatus, installation, debugging and operation maintenance all will produce deep change, and the easy comparison work carrying out final construction results and expection drawing rapidly becomes the key that can system be delivered for use rapidly.
In the work progress of digital transformer substation, various device model varies, and various line is thousands of, and it is also unavoidable that centre goes wrong, but how carrying out reparation is rapidly not so simple thing.After construction completes, if when certain device occurs extremely needing to change, the work that new equipment replaces old device is not that physics is replaced simply, also needs amendment to put on record or drawing.When system is run for a long time, when changing and not putting on record in time all appearred in multiple device, the location of problem will complex.This digital management for station level, wall and process layer proposes new challenge.
The message sent due to the device of digital transformer substation only has SV or GOOSE, and the source MAC (medium access control) of message and APPID (application identities symbol) be with device one to one, the corresponding relation of switch and device can be found by resolution data message.But it is not the Botong generally used at present and the exchange chip of Mai Wei do not support the parsing of custom field, if use special agreement to adopt CPU to resolve, real under the state of linear speed.
In Ethernet system, if need the topological relation of stages on tectonic network, only need stages according to set form to send location notification message, then gathered by a watch-dog, finally report network management interface, form topological diagram.But in electric power system, process layer only allows transmission SV and GOOSE Frame, does not allow the Frame occurring that other are any, the obviously not onset of so this way.
Summary of the invention
Problem to be solved by this invention is by carrying out analysis and treament to SV in electric power system and GOOSE message, getting the mapping relations between device and port, sets up a full mesh topology figure, locates various device rapidly and accurately.
Technical scheme of the present invention is:
In electric power system, a method for extraction element mark, is characterized in that comprising the following steps: monitored data frame; Extraction element identifies; Analytical equipment identifies; Report and alarm; Reporting device mark and port mapping relationship; Substation network topological diagram constructs.
A method for extraction element mark in electric power system, is characterized in that according to the following steps: step one monitored data frame: switch monitors the SV collection value message sended over from wall MU merge cells and the GOOSE message sended over from protection and the intelligent cell of wall; The monitoring of Frame is not affected to the store & forward of current data frame, all Frames can keep intact by switching equipment, forward according to predetermined passage;
Step 2 extraction element identifies: switch extracts the device identification of normal SV and GOOSE message, and the message of mistake directly abandons;
Completeness check is carried out, for repetition, mistake or the super many physical label report and alarms occurred after step 3 analytical equipment mark and report and alarm: CPU receive device identification; For normal physical label, under being recorded to corresponding port; The extraction of device identification is not affected to the store & forward of current data;
Step 4 reporting device mark constructs with port mapping relationship and substation network topological diagram: the device identification that all of the port learns by CPU timing reports management platform by MMS (manufacturing message specification ISO 9506) message, and management platform is formed full mesh topology figure; The warning information of the mistake of management platform collection is simultaneously shown, to locate concrete intelligent electronic device (IED) device information.
Described device identification comprises port, type, source MAC, virtual LAN numbering (VLAN) and application identities symbol (APPID), and described type comprises newly-increased, aging and exceedes restricted number.
Switch does not extract the SV of error data frame and the device identification of GOOSE message, and type of error comprises CRC, ultrashort and overlength.
The present invention can the change that occurs of the annexation of rapid detection auto levelizer and switch, and worst error is one second.Can alarm be provided for extracting abnormal device identification, Exception Type comprises that identical device identification appears at different port, too much physical label appears in same port, the physical label content of extraction is in range of choices etc.Carry out necessary inspection and verification during network topological diagram structure, provide alarm for significantly abnormal.
Beneficial effect of the present invention is as follows:
In technical scheme provided by the invention, by monitoring SV and GOOSE Frame, and specific fields is resolved identify with acquisition device, do not need IED device transmission identity report message just accurately can locate the network link topology of stages, effectively can help analysis, diagnostic device fault in electric power system.
Accompanying drawing explanation
Fig. 1 is extraction element identification process flow chart of the present invention.
Fig. 2 is the frame format figure of reporting device of the present invention mark.
Fig. 3 is the frame format figure of SV message of the present invention.
Fig. 4 is the frame format figure of GOOSE message of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the present invention is further elaborated.Fig. 1 is extraction element of the present invention mark schematic flow sheet, and described method specifically comprises the following steps:
Step 101: before all frames enter switch, first through the process of fpga chip, the function of fpga chip monitors the data collected.
Step 102: identify SV and GOOSE frame according to the frame structure that IEC-61850 stipulations and IEEE 802.3 agreement specify, these two kinds of Frames non-are directly transmitted to exchange chip.
Step 103: check that message length is whether in allowed band (64-1518), whether CRC is correct, if there is mistake, directly abandons.
Step 104: if normal SV or GOOSE frame, then resolve according to the message format of standard, and extract packet receiving port, source MAC, VLAN, APPID, form the type of this mark, comprise newly-increased, aging and exceed restricted number;
Concrete, corresponding SV message, as Fig. 3, source MAC is 6 bytes after frame header deviation 6 byte; Then check whether TPID is 0x8100, and if not then abandoning, if so, then VLAN is 2 bytes after frame header deviation 14 bytes; APPID is 2 bytes after frame header deviation 18 bytes.
Corresponding GOOSE message, as Fig. 4, source MAC is 6 bytes after frame header deviation 6 byte; Then check whether TPID is 0x8100, and if not then abandoning, if so, then VLAN is 2 bytes after frame header deviation 14 bytes; APPID is 2 bytes after frame header deviation 18 bytes.
Step 105:FPGA chip reports primary device identification renewal situation each second, and as the id field in Fig. 2, concrete type comprises newly-increased, aging and to abandon etc. three kinds.
Further, when specific implementation, each functional module both can put into independent function element, also can operate on common hardware platform by the form of software or logical code, and not take independently hardware configuration, to save hardware cost.
The above, be only preferred embodiments of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (3)

1. the method that in electric power system, extraction element identifies, is characterized in that according to the following steps: step one monitored data frame: switch monitors the SV collection value message sended over from wall MU merge cells and the GOOSE message sended over from protection and the intelligent cell of wall; The monitoring of Frame is not affected to the store & forward of current data frame, all Frames can keep intact by switching equipment, forward according to predetermined passage;
Step 2 extraction element identifies: switch extracts the device identification of normal SV and GOOSE message, and the message of mistake directly abandons;
Completeness check is carried out, for repetition, mistake or the super many physical label report and alarms occurred after step 3 analytical equipment mark and report and alarm: CPU receive device identification; For normal physical label, under being recorded to corresponding port; The extraction of device identification is not affected to the store & forward of current data;
Step 4 reporting device mark constructs with port mapping relationship and substation network topological diagram: the device identification that all of the port learns by CPU timing reports management platform by MMS message, and management platform is formed full mesh topology figure; The warning information of the mistake of management platform collection is simultaneously shown, to locate concrete intelligent electronic device (IED) device information.
2. the method that in electric power system according to claim 1, extraction element identifies, it is characterized in that: described device identification comprises port, type, source MAC, virtual LAN numbering (VLAN) and application identities symbol (APPID), and described type comprises newly-increased, aging and exceedes restricted number.
3. the method that in electric power system according to claim 1, extraction element identifies, it is characterized in that: switch does not extract the SV of error data frame or the device identification of GOOSE message, type of error comprises CRC, ultrashort and overlength.
CN201410833048.0A 2014-12-26 2014-12-26 Method for extracting device identifiers in power system Pending CN104506363A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104917705A (en) * 2015-06-18 2015-09-16 国家电网公司 Network message management method of intelligent substation process layer switch
CN111929520A (en) * 2020-08-17 2020-11-13 呼和浩特市奥祥电力自动化有限公司 Fault recording triggering method and device for power system
CN112041904A (en) * 2018-05-07 2020-12-04 索尼公司 Communication terminal, sensing device and server

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US20070147415A1 (en) * 2005-12-23 2007-06-28 General Electric Company Intelligent electronic device with embedded multi-port data packet controller
CN102439818A (en) * 2009-07-28 2012-05-02 Abb技术有限公司 Method and device for auto-generating goose signal connection topology from substation level
CN104092585A (en) * 2014-07-17 2014-10-08 国家电网公司 Smart substation process level secondary circuit fault diagnosis method

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Publication number Priority date Publication date Assignee Title
US20070147415A1 (en) * 2005-12-23 2007-06-28 General Electric Company Intelligent electronic device with embedded multi-port data packet controller
CN102439818A (en) * 2009-07-28 2012-05-02 Abb技术有限公司 Method and device for auto-generating goose signal connection topology from substation level
CN104092585A (en) * 2014-07-17 2014-10-08 国家电网公司 Smart substation process level secondary circuit fault diagnosis method

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104917705A (en) * 2015-06-18 2015-09-16 国家电网公司 Network message management method of intelligent substation process layer switch
CN112041904A (en) * 2018-05-07 2020-12-04 索尼公司 Communication terminal, sensing device and server
CN111929520A (en) * 2020-08-17 2020-11-13 呼和浩特市奥祥电力自动化有限公司 Fault recording triggering method and device for power system
CN111929520B (en) * 2020-08-17 2023-03-14 呼和浩特市奥祥电力自动化有限公司 Fault recording triggering method and device for power system

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Application publication date: 20150408