CN104092584A - Smart substation network communication signal detector - Google Patents
Smart substation network communication signal detector Download PDFInfo
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- CN104092584A CN104092584A CN201410338923.8A CN201410338923A CN104092584A CN 104092584 A CN104092584 A CN 104092584A CN 201410338923 A CN201410338923 A CN 201410338923A CN 104092584 A CN104092584 A CN 104092584A
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Abstract
The invention provides a smart substation network communication signal detector which comprises a monitor end port, an information recording device and an information analysis device. The monitor end port is arranged on an automatic system communication channel of a smart substation and accesses the received/sent message to the information recording device. The information recording device reads the received/sent message from the monitor end port and stores the read received/sent message into a message file periodically. The information analysis device analyzes the read message in the message file, judges whether the read message conforms to the IEC61850 standard or not and displays power grid signals included in the relative message. According to the smart substation network communication signal detector, the monitor end port is arranged on the smart substation network communication channel, signals are continuously, perfectly and completely recorded in the information recording device and the information analysis device, the local process of the substation network communication can be reproduced, and power grid signals in the local process can be displayed, and the installation maintenance personnel are assisted in accurately communicating the signal content in the system.
Description
Technical field
The present invention relates to intelligent substation network service, specifically a kind of intelligent substation network service signal detecting device.
Background technology
, often there is background monitoring, Unattended Centralized Control Substation and the remote signalling of dispatching automation main station system in the uniting and adjustment of tradition electric substation automation system and in service or event is imperfect, remote control is unsuccessful, measure the situations such as transition.When the reactive voltage that occurs in a distant place or local automated closed-loop control when these situations is controlled the system such as (AVQC), automatic generation control (AGC) automatically, its seriousness is just more outstanding.Practice shows, these situations are mostly because communication failure causes, but owing to lacking effective technology means, and the communication process while cannot reproduction problem generation, is therefore often difficult to problem judge, locate and process.
For example, and along with the development of digital transformer substation, the communication technology more and more becomes the key of the automation of transformation substations, the electric substation automation system based on IEC61850 standard.Wherein, IEC61850 standard is the international standard of the electric substation automation system based on universal network communication platform; in this substandard electric substation automation system; the equal Adoption Network communication mode of the functions such as the breaker tripping and closing of connection locking, relaying protection and the automatics of supervisory control system is realized; traditional secondary circuit is converted to network service process by cable connection directly perceived, and the connection of various signals and transmission change communication modes into by traditional hardwire mode and realize.Particularly along with the appearance of the totally digitilized transformer station of applying electronic formula electric current, voltage transformer and intelligent breaker product, design, installation, debugging and the operation maintenance of electric substation automation system will produce deep change, and system is moved the communication that places one's entire reliance upon.Now, traditional malfunction elimination means cannot meet the demands especially, and communication process mistake is difficult to reproduce.
Therefore, in the time that electric network fault, automated system are abnormal, how to reappear the overall process of automation system network communication, and then this communication process is analyzed at many levels, so that standby maintenance personnel locate failure cause accurately, in time, become IEC61850 electric substation automation system problem in the urgent need to address.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, a kind of intelligent substation network service signal detecting device is provided, to reappear the process of this electric substation automation system network service, and then the power network signal that communication process is comprised reduces and reality, so that auxiliary installation and maintenance personnel accurately determine the signal in network.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of intelligent substation network service signal detecting device, comprise listening port, information record carrier and information analysis apparatus, wherein, described listening port is arranged on automatic system of intelligent transformer station communication path, and the sending and receiving message on this automated system communication path is accessed to described information record carrier; Described information record carrier reads the described sending and receiving message from listening port, is periodically message file by read sending and receiving packet storage; Message in the message file that described information analysis apparatus analysis is read, judges whether it meets IEC61850 standard, and the power network signal comprising in association message is shown.
Further, described listening port is the light listening port of being located at the Ethernet listening port of ethernet communication path or being located at optical fiber communication path.
Further, when the network switch of automatic system of intelligent transformer station has port mapping function, distribute a communication interface as Ethernet listening port by this network switch.
Further, when the network switch of automatic system of intelligent transformer station does not have port mapping function, Ethernet listening port comprises ignition distributor, and ignition distributor input connects sending and receiving passage, ignition distributor output access information tape deck.
Further, described light listening port comprises optical splitter, and the input of optical splitter connects sending and receiving passage, and optical splitter output is divided into two-way, and the former device that is listened of a road access, by original route transmission; Another road is access information tape deck.
Further, described information record carrier comprises control module and is subject to the Power Entry Module of this control module control, processing and cache module, memory module, abnormal output module and gps clock module, described Power Entry Module connection external power supply; Described processing and cache module are connected to described listening port, read the sending and receiving message on the each communication path of described automated system through listening port, read sending and receiving message is added after markers its buffer memory, and periodically the message of institute's buffer memory is formed to message file under described control module control, deposit this message file in described memory module; Abnormal output module is for exporting the operation conditions of this information record carrier; Described gps clock module access external clock reference.
Further, described information record carrier also comprises the first display module of the operating state for showing the each module of described information record carrier.
Further, described information analysis apparatus comprises message processing module (MPM), MMS message processing module (MPM), GOOSE/SMV message processing module (MPM), ACSI processing module and the second display module, described message processing module (MPM) is carried out link layer analysis to message, this link layer analysis comprises and judges whether it meets link layer protocol requirement, and be MMS message or GOOSE/SMV message according to this message, sent into corresponding MMS message processing module (MPM) or GOOSE/SMV message processing module (MPM); Described MMS message processing module (MPM) is carried out networking layer analysis and communication process analysis to received MMS message, judges whether this MMS message meets the requirement of MMS application protocol, and the MMS message that meets the requirement of MMS application protocol is sent into described ACSI processing module; Described GOOSE/SMV message processing module (MPM) is carried out communication process analysis to received GOOSE/SMV message, judge whether this GOOSE/SMV message meets the requirement of GOOSE/SMV application protocol, and the GOOSE/SMV message that meets the requirement of GOOSE/SMV application protocol is sent into described ACSI processing module; Described ACSI processing module is carried out applied analysis to received message, this applied analysis comprises and judges whether the entrained information of single message meets the configuration file requirement of IEC61850 transformer station, and judge whether application of electronic report process meets IEC61850 standard, and whether have other mistakes and hidden danger, and association message information is shown; Described the second display module is for showing the message that does not meet corresponding requirements that the each processing module of described information analysis apparatus analyzes.
Beneficial effect of the present invention: the present invention by arranging listening port on intelligent substation communication path, by sending and receiving message access information record and analytical equipment on communication path, and continuous whole ground non-loss recording is in information recording and analytical equipment, thereby can reappear the local process of this substation network communication and show power network signal wherein, thereby auxiliary installation and maintenance personnel accurately read the signal content in communication system.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the present invention sniffer;
Fig. 2 is the structural representation of another embodiment of the present invention sniffer;
Fig. 3 is the structural representation of information record carrier of the present invention;
Fig. 4 is the structural representation of information analysis apparatus of the present invention.
Embodiment
As depicted in figs. 1 and 2, signal detecting device of the present invention comprises listening port, information record carrier and information analysis apparatus, wherein, listening port is multiple, and be arranged at respectively on this intelligent substation communication path, sending and receiving message on this automated system communication path is accessed to this signal record and analytical equipment, record and analyze by information recording and analytical equipment.
Realize the intelligent substation of communication connection for utilizing Ethernet, as shown in Figure 1, listening port is Ethernet listening port, Ethernet listening port is located in ethernet communication path, Ethernet listening port is sending and receiving message access information tape deck and the information analysis apparatus of Ethernet link layer, thereby recorded and analyze the complete procedure of designated communication.Meanwhile, can select the rule of network message filtering, make Ethernet listening port by interaction data bag access information tape deck and information analysis apparatus on assigned ip address, designated port.Ethernet listening port directly accesses the packet based on IP communication protocol, and it is irrelevant with the application layer protocol adopting, can record communication abnormal data, sequential abnormal data, even network attack data of unrelated interruptions data, therefore also can monitor the network security of Ethernet, for the safety of analyzing network provides reliable data information.Each Ethernet listening port all disposes ID, network equipment title and packet filtering condition.
In the time of practical operation, Ethernet listening port comprises following two kinds of situations:
1) in the time that the network switch of automated system has port mapping function, distribute a communication interface as this Ethernet listening port by this network switch, and have the communication interface that multiple need intercept at this network switch, the data of these communication interfaces are all mapped to this Ethernet listening port by this network switch, by this Ethernet listening port access information tape deck.In theory, the speed of set Ethernet listening port is greater than each need and intercepts communication interface speed sum.
2) in the time of the network switch portless mapping function of automated system, Ethernet listening port is located on ethernet communication path, through ignition distributor by the sending and receiving message access information tape deck on communication path.
Realize the intelligent substation of network service for utilizing optical fiber, particularly in the time of the network switch portless mapping function of automated system, can adopt light to intercept mode listening port is set, as shown in Figure 2, owing to adopting different passages to carry out message receipts in an optical communication path, send out, therefore need receive, send out and arrange respectively one on passage and intercept end, in order to access respectively receipts, the literary composition of transmitting messages, because the message in each passage is with the transmission of light signal form, therefore also need according to light splitting technology general principle through respectively intercepting the light signal of end, be divided into two-way through optical splitter, the former device that is listened of one tunnel access, by original route transmission, this analyzing network communication record system is accessed on another road, and light listening port can, according to monitored network fiber type (multimode, single mode) and traffic rate (10M/100M/1000Mbps), be selected dissimilar passive optical splitters.
As shown in Figure 3, described information record carrier comprises control module, Power Entry Module, processing and cache module, memory module, communication module, gps clock module, abnormal output module and the first display module, and these modules also can be configured according to actual needs.
Wherein, the operation of control module control Power Entry Module, processing and cache module, memory module, gps clock module, abnormal output module and the first display module; and monitor the running status of these modules; in the time that occurring that abnormal or information record carrier cannot normally be worked, these modules restart, to improve the stability of a system.
Power Entry Module is by external power supply access information tape deck.
Processing and cache module are by each listening port, read the sending and receiving message on intelligent substation communication path, read all messages are added after markers its buffer memory, and periodically buffer memory message is formed to a message file under the control of control module, deposit memory module in.Whenever processing and cache module buffer memory message reaches the preset buffer memory time for example 10 minutes time, process and cache module under control module instruction by this preset buffer memory time in the message of buffer memory form a message file, be within every 10 minutes, to form a message file, and deposit this message file in memory module, wherein, each message file can come source port and time scale information etc. according to it and names.
Memory module, for according to the message file that the instruction Coutinuous store of control module is processed and cache module forms, ensures message to carry out uninterrupted recording.This memory module detects its operating state and memory capacity by control module, and according to the priority of writing time, stored message file is deleted in the time that its memory capacity reaches predetermined value.
Gps clock module can be accessed by external clock reference, to receive standard time clock and to upgrade system time.This external clock reference can be outside 485 serial clock signals and pulse clock signal, and clock synchronous error is less than 1 millisecond in calibration cycle.
Abnormal output module, for exporting the operation conditions of this information record carrier, particularly, in the time that control module detects that the each module of this information record carrier 20 exists misoperation situation, is exported the indication information of this information record carrier fault.For example, in the time of information record carrier normal operation, abnormal output module output high level; In the time that control module detects that the each module of information record carrier exists misoperation situation, abnormal output module is by control module control output low level.Therefore, after this information record carrier puts into operation, while having there is operation troubles due to a variety of causes, can gather by measure and control device the output signal of this abnormal output module 27, notify distant place system.
Information record carrier, also by the first display module, adopts the modes such as panel leds, display screen intuitively to show the operating state of modules.
Described information analysis apparatus is analyzed the message in message file, judge whether it meets IEC61850 standard and whether have other mistakes and hidden danger, and the power network signal in association message information is shown, as shown in Figure 4, this information analysis apparatus comprises message document processing module, MMS(Manufacturing Message Specification, manufacture message specification) message processing module (MPM), GOOSE/SMV(Generic Object Oriented Substation Event/Sampled Measured Values, towards the transformer substation case/sampled measurement of general object) message processing module (MPM), ACSI(Abstract Communication Service Interface, Abstract Common Service Interface) processing module and the second display module.
Wherein, message document processing module carries out link layer analysis to the message in message file, judge whether message meets link layer protocol requirement, analyze whether message is complete, whether message address is legal and judge its type of message EtherType whether IEC61850 standard allows.Imperfect at message, message address is illegal or type of message be not IEC61850 standard allow EtherType time, classify this message as error message, identify its type of error, and shown in the second display module.For error message, do discard processing; For correct message, message document processing module is MMS message or GOOSE/SMV message according to the type of message of message, is sent into corresponding MMS message processing module (MPM) or GOOSE/SMV message processing module (MPM).
MMS message processing module (MPM) receives after MMS message, this MMS message is carried out to networking layer analysis and communication process analysis, judge whether this MMS message meets the requirement of MMS application protocol: first, MMS message is carried out to network layer analysis, judge that whether its information type is legal, and carry out topological analysis, judge that whether MMS message IP address is legal, whether port numbers is legal; Secondly, the communication process of MMS message is analyzed, comprised break-make analysis and message Continuity Analysis.In analytic process, no matter that it is carried out in the process of network layer analysis or is carried out in the process of communication process analysis, do not meet the requirement of MMS application protocol if judge MMS message, classify this MMS message as error message, identify its type of error, and shown in the second display module.For error message, if erroneous effects subsequent treatment, after identifying, MMS message processing module (MPM) is directly processed next message; For correct message, MMS message processing module (MPM) is sent into ACSI processing module.
Similarly, GOOSE/SMV message processing module (MPM) receives after GOOSE/SMV message, this GOOSE/SMV message is carried out to communication process analysis, judge whether this GOOSE/SMV message meets the requirement of GOOSE/SMV application protocol, the communication process of GOOSE/SMV message is analyzed, comprised break-make analysis and message Continuity Analysis.In analytic process, do not meet the requirement of GOOSE/SMV application protocol if judge GOOSE/SMV message, classify this GOOSE/SMV message as error message, identify its type of error, and shown in the second display module.For error message, if erroneous effects subsequent treatment, after identifying, GOOSE/SMV message processing module (MPM) is directly processed next message; For correct message, GOOSE/SMV message processing module (MPM) is sent into ACSI processing module.
ACSI processing module receives after the message of MMS message processing module (MPM) and the transmission of GOOSE/SMV message processing module (MPM), and it is carried out to applied analysis.First, single message is analyzed, judged that according to IEC61850 transformer station configuration file (SCD, Staging Configuration Directory) whether the entrained information of message is complete, correct.Secondly, application of electronic report process is analyzed, these application processes include, but not limited to initialization procedure, control operation process, definite value operating process.When application of electronic report process is analyzed, first according to type of message, message data information and message temporal information, application of electronic report process is defined, namely define the message that application-specific process comprises; After application of electronic report process is defined, this application process is analyzed, whether complete according to IEC61850 standard discriminatory analysis application process, whether meet logic and the related type of message of the each step of application process and message information whether correctly, whether meet logic.Message is carried out in the process of applied analysis in ACSI processing module, if judge single message or application of electronic report process exists mistake, classify this single message or the related message of application of electronic report process as error message, identify its type of error, and shown in display module.
Each concrete analysis deterministic process that the above-mentioned each module of information analysis apparatus is carried out message according to respective standard or agreement is that those skilled in the art can be easy to know according to foregoing description, therefore do not repeat them here.
Claims (8)
1. an intelligent substation network service signal detecting device, it is characterized in that, comprise listening port, information record carrier and information analysis apparatus, wherein, described listening port is arranged on automatic system of intelligent transformer station communication path, and the sending and receiving message on this automated system communication path is accessed to described information record carrier; Described information record carrier reads the described sending and receiving message from listening port, is periodically message file by read sending and receiving packet storage; Message in the message file that described information analysis apparatus analysis is read, judges whether it meets IEC61850 standard, and the power network signal comprising in association message is shown.
2. a kind of intelligent substation network service signal detecting device according to claim 1, is characterized in that, described listening port is the light listening port of being located at the Ethernet listening port of ethernet communication path or being located at optical fiber communication path.
3. a kind of intelligent substation network service signal detecting device according to claim 2, it is characterized in that, when the network switch of automatic system of intelligent transformer station has port mapping function, distribute a communication interface as Ethernet listening port by this network switch.
4. a kind of intelligent substation network service signal detecting device according to claim 2, it is characterized in that, when the network switch of automatic system of intelligent transformer station does not have port mapping function, Ethernet listening port comprises ignition distributor, ignition distributor input connects sending and receiving passage, ignition distributor output access information tape deck.
5. a kind of intelligent substation network service signal detecting device according to claim 2, it is characterized in that, described light listening port comprises optical splitter, the input of optical splitter connects sending and receiving passage, optical splitter output is divided into two-way, the former device that is listened of one tunnel access, by original route transmission; Another road is access information tape deck.
6. a kind of intelligent substation network service signal detecting device according to claim 1, it is characterized in that, described information record carrier comprises control module and is subject to the Power Entry Module of this control module control, processing and cache module, memory module, abnormal output module and gps clock module, described Power Entry Module connection external power supply; Described processing and cache module are connected to described listening port, read the sending and receiving message on the each communication path of described automated system through listening port, read sending and receiving message is added after markers its buffer memory, and periodically the message of institute's buffer memory is formed to message file under described control module control, deposit this message file in described memory module; Abnormal output module is for exporting the operation conditions of this information record carrier; Described gps clock module access external clock reference.
7. a kind of intelligent substation network service signal detecting device according to claim 6, is characterized in that, described information record carrier also comprises the first display module of the operating state for showing the each module of described information record carrier.
8. a kind of intelligent substation network service signal detecting device according to claim 1, it is characterized in that, described information analysis apparatus comprises message processing module (MPM), MMS message processing module (MPM), GOOSE/SMV message processing module (MPM), ACSI processing module and the second display module, described message processing module (MPM) is carried out link layer analysis to message, this link layer analysis comprises and judges whether it meets link layer protocol requirement, and be MMS message or GOOSE/SMV message according to this message, sent into corresponding MMS message processing module (MPM) or GOOSE/SMV message processing module (MPM), described MMS message processing module (MPM) is carried out networking layer analysis and communication process analysis to received MMS message, judges whether this MMS message meets the requirement of MMS application protocol, and the MMS message that meets the requirement of MMS application protocol is sent into described ACSI processing module, described GOOSE/SMV message processing module (MPM) is carried out communication process analysis to received GOOSE/SMV message, judge whether this GOOSE/SMV message meets the requirement of GOOSE/SMV application protocol, and the GOOSE/SMV message that meets the requirement of GOOSE/SMV application protocol is sent into described ACSI processing module, described ACSI processing module is carried out applied analysis to received message, this applied analysis comprises and judges whether the entrained information of single message meets the configuration file requirement of IEC61850 transformer station, and judge whether application of electronic report process meets IEC61850 standard, and whether have other mistakes and hidden danger, and association message information is shown, described the second display module is for showing the message that does not meet corresponding requirements that the each processing module of described information analysis apparatus analyzes.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108768795A (en) * | 2018-08-17 | 2018-11-06 | 国网吉林省电力有限公司 | One kind is non-intervention to intercept the illegal access detection method of power scheduling service network |
| CN109450084A (en) * | 2018-10-24 | 2019-03-08 | 国网江苏省电力有限公司 | A kind of intelligent substation multi-layer protocol Cooperative Analysis method based on information data chain |
| CN111610397A (en) * | 2020-05-26 | 2020-09-01 | 中国电力科学研究院有限公司 | Automatic closed-loop test system and method |
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| CN101316051A (en) * | 2008-07-03 | 2008-12-03 | 绍兴电力局 | Internetwork communication log analysis system and method based on IEC61850 transforming plant automatization system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768795A (en) * | 2018-08-17 | 2018-11-06 | 国网吉林省电力有限公司 | One kind is non-intervention to intercept the illegal access detection method of power scheduling service network |
| CN108768795B (en) * | 2018-08-17 | 2021-09-24 | 国网吉林省电力有限公司 | Non-intervention interception power dispatching service network illegal access detection method |
| CN109450084A (en) * | 2018-10-24 | 2019-03-08 | 国网江苏省电力有限公司 | A kind of intelligent substation multi-layer protocol Cooperative Analysis method based on information data chain |
| CN109450084B (en) * | 2018-10-24 | 2021-10-01 | 国网江苏省电力有限公司 | Intelligent substation multilayer protocol collaborative analysis method based on information data link |
| CN111610397A (en) * | 2020-05-26 | 2020-09-01 | 中国电力科学研究院有限公司 | Automatic closed-loop test system and method |
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