CN103944787B - The two net pattern handoff testing method of intelligent substation station level - Google Patents
The two net pattern handoff testing method of intelligent substation station level Download PDFInfo
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y—GENERAL 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
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- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
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Abstract
The invention discloses the two net pattern handoff testing method of a kind of intelligent substation station level, be intended to solve two net pattern in prior art switch in detecting information be difficult to judge with or without loss, affect the technical problem of power grid security production run.Network analyzer catches two Network Communication message by switch mirror port in network monitoring mode; Then two Network Communication message is resolved, extract Abstract Common Service Interface related object, service, data attribute; The data of recycling Mathematical Modeling to two Network Communication packet parsing are compared, if there is exception message, then and outputting alarm information; Otherwise, represent in two net mode handover procedure without information dropout; Finally, warning information is uploaded to monitoring host computer, user knows that station level network service is abnormal.The present invention can switch accurately, reliably, rapidly to net pattern two in station level network and test, solve prior art medium-term and long-term since two net pattern switch in detecting information with or without losing the technical problem being difficult to judge.
Description
Technical field
The present invention relates to the two net pattern handoff testing method of a kind of intelligent substation station level, belong to power test systems technology field.
Background technology
In order to ensure that substation operation is reliable, intelligent substation adopts the station level network of the double star network architecture.The two net of station level keeps running, and when a road Network Abnormal, can automatically switch, or when to a wherein station control layer switch maintenance, can manual switchover network.Have two kinds of implementations early stage for station level two Network Communication mode, be respectively two net dual-mode and net hot standby pattern with two, current State Grid Corporation of China company standard " IEC61850 engineering relaying protection application model " clearly uses the hot standby pattern of two net.Under two net dual-mode, server will carry out indiscriminate process to client A and client B, and when a network failure in A net or B net, another network will continue normal work, thus the reliability that guarantee communicates.Under the hot standby pattern of two net, the normal work of A net, B net keeps connecting, when A net breaks down, the report-control block (BRCB, URCB) that B net registration A net is once registered, because B net maintains connection, by configuring the TCP_KEEPALIVE parameter (standard recommendation is set in 1s ~ 20s scope) of ICP/IP protocol, IED can detect B Running State simultaneously, when B net breaks down, and can directly alarm maintenance.The hot standby pattern of this two net, not only reduces the information processing capacity of IED, has also ensured the reliability of communication simultaneously.
In two net handoff procedure, the possibility of information dropout may be there is, at present temporary without effective technological means detecting information with or without loss, can affect like this electrical network safety in production run.Based on the risk bringing substation safety operation above, need badly and a kind of effective technological means is provided, test and monitor in two net handoff procedure whether have information dropout, before networking, find out the defect of system, and supervision providing alarm extremely in running.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, there is provided a kind of intelligent substation station level two net pattern handoff testing method, during the two net pattern in prior art that solves switches, detecting information is difficult to judge with or without loss, affects the technical problem of power grid security production run.
The object of the present invention is achieved like this: the two net pattern handoff testing method of intelligent substation station level, comprises the steps:
Step one: catch two Network Communication message: network analyzer catches two Network Communication message by switch mirror port in network monitoring mode;
Step 2: information extraction: resolve two Network Communication message, extracts Abstract Common Service Interface related object, service, data attribute;
Step 3: comparing: utilize the data of Mathematical Modeling to two Network Communication packet parsing to compare, if there is exception message, then outputting alarm information; Otherwise, represent in two net mode handover procedure without information dropout;
Step 4: warning information process: warning information is uploaded to monitoring host computer, according to monitoring host computer feedback information, user knows that station level network service is abnormal.
Described pair of net pattern is two net dual-modes, the step of described comparing is as follows: utilize Mathematical Modeling to carry out the comparison of resolution data consistency to the uplink message in two Network Communication message, if comparison result is inconsistent, then represents and occur exception message, outputting alarm information; Otherwise, represent in two net mode handover procedure without information dropout.
Described pair of net pattern is the hot standby pattern of two net, and the step of described comparing is as follows: utilize the resolution data of Mathematical Modeling to two Network Communication message to carry out continuity comparison, if comparison result is discontinuous, then represents and occurs exception message, outputting alarm information; Otherwise, represent in two net mode handover procedure without information dropout.
Described warning information is uploaded to monitoring host computer by IEC61850 standard.
Compared with prior art, the beneficial effect that the present invention reaches is: provide the two net pattern handoff testing method of a kind of intelligent substation station level, can switch accurately, reliably, rapidly to net pattern two in station level network and test, solve prior art medium-term and long-term since two net pattern switch in detecting information with or without losing the technical problem being difficult to judge; Warning information is uploaded to monitoring host computer, makes user's very first time grasp two net switchover operation situation, accurately judges whether two net exists information dropout, Timeliness coverage potential safety hazard in switching, and avoids affecting power grid security production run.
Accompanying drawing explanation
Fig. 1 is the two net pattern switch test system configuration schematic diagram of intelligent substation station level.
In figure: 1, network analyzer; 2, monitoring host computer; 3, A net; 4, A network switch; 5, B net; 6, B network switch.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The two net pattern handoff testing method of intelligent substation station level, comprises the steps:
Step one: catch two Network Communication message: network analyzer 1 catches two Network Communication message by switch mirror port in network monitoring mode.As shown in Figure 1, station level network is made up of A net 3 and B net 5, A net 3 and B net 5 all adopt star network framework, A net 3 and B net 5 are respectively equipped with respective switch, network analyzer 1 catches the communication message of A net 3 in network monitoring mode by A network switch 4 mirror port, network analyzer 1 catches the communication message of B net 5 in network monitoring mode by B network switch 6 mirror port.
Step 2: information extraction: resolve two Network Communication message, extracts Abstract Common Service Interface related object, service, data attribute.Network analyzer 1 is resolved respectively to the communication message of the A net 3 of catching and the communication message of B net 5 respectively, extract Abstract Common Service Interface related object information, as: Server, LD, LN, DO, DataSet, BRCB, URCB etc., extract information on services simultaneously, as: Associate, GetServerDirectory, GetLogicNodeDirectory, GetDataValues, SetBRCBValues, SetURCBValues etc., and extract data attribute information.
Step 3: comparing: utilize the data of Mathematical Modeling to two Network Communication packet parsing to compare, if there is exception message, then outputting alarm information; Otherwise, represent in two net mode handover procedure without information dropout.
If two net pattern is two net dual-modes, namely when a network failure in A net 3 or B net 5, another network will continue normal work, due under two net dual-mode, server will carry out indifference process to client A and client B, and do not affect uplink message in two net handoff procedure, so the uplink message of A net 3 should be consistent with the uplink message of B net 5, so for the Data Comparison step of two net dual-mode be: utilize the uplink message of Mathematical Modeling to the uplink message of A net 3 and B net 5 to carry out the comparison of resolution data consistency, if comparison result is inconsistent, then represent and occur exception message, outputting alarm information, otherwise, represent that two net dual-mode switches normal without information dropout in two net mode handover procedure.
If two net pattern is the hot standby pattern of two net, the TCP only having one to net in redundancy link group connects in running order, suppose that in running order is A net 3, then A net 3 can carry out the transmission of application data and order, the TCP of another net connects should remain on association status, i.e. B net 5, and so B net 5 only carries out read data operation, if without information dropout in two net handoff procedure, the communication message of A net 3 and B net 5 should be continuous print.Therefore, step for the comparing of the hot standby pattern of two net should be: utilize the resolution data of Mathematical Modeling to the resolution data of A net 3 communication message and B net 5 communication message to carry out continuity comparison, if comparison result is discontinuous, then represents and occur exception message, outputting alarm information; Otherwise, represent that, without information dropout in two net mode handover procedure, the hot standby pattern of two net switches normal.
Step 4: warning information process: warning information is uploaded to monitoring host computer 2, according to monitoring host computer 2 feedback information, user knows that station level network service is abnormal.Warning information is uploaded to monitoring host computer 2 by IEC61850 standard, realizes the seamless link of system.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (2)
1. the two net pattern handoff testing method of intelligent substation station level, is characterized in that, comprise the steps:
step one: catch two Network Communication message:network analyzer catches two Network Communication message by switch mirror port in network monitoring mode;
step 2: information extraction:two Network Communication message is resolved, extracts Abstract Common Service Interface related object, service, data attribute;
step 3: comparing:the data of Mathematical Modeling to two Network Communication packet parsing are utilized to compare, if there is exception message, then outputting alarm information; Otherwise, represent in two net mode handover procedure without information dropout;
when described pair of net pattern is two net dual-mode, the step of described comparing is as follows:
Utilize Mathematical Modeling to carry out the comparison of resolution data consistency to the uplink message in two Network Communication message, if comparison result is inconsistent, then represents and occur exception message, outputting alarm information; Otherwise, represent in two net mode handover procedure without information dropout;
when described pair of net pattern is two net hot standby pattern, the step of described comparing is as follows:
Utilize the resolution data of Mathematical Modeling to two Network Communication message to carry out continuity comparison, if comparison result is discontinuous, then represents and occur exception message, outputting alarm information; Otherwise, represent in two net mode handover procedure without information dropout;
step 4: warning information process:warning information is uploaded to monitoring host computer, according to monitoring host computer feedback information, user knows that station level network service is abnormal.
2. the two net pattern handoff testing method of intelligent substation station level according to claim 1, it is characterized in that, described warning information is uploaded to monitoring host computer by IEC61850 standard.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417688A (en) * | 2018-04-26 | 2019-11-05 | 广东电网有限责任公司 | A kind of dispatch automated system multichannel message analysis processing system and method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104579818A (en) * | 2014-12-01 | 2015-04-29 | 国家电网公司 | Detection method of network anomaly message of intelligent substation |
| CN106302540A (en) * | 2016-10-14 | 2017-01-04 | 国网浙江省电力公司绍兴供电公司 | Communications network security detecting system based on substation information safety and method |
| CN108306753B (en) * | 2017-12-20 | 2023-10-24 | 中国电力科学研究院有限公司 | Simulation device, test method and system for shutdown of I-zone data communication network |
| CN110943760A (en) * | 2019-11-29 | 2020-03-31 | 杭州和利时自动化有限公司 | Dual-network communication method, device, equipment and readable storage medium |
| CN114124672B (en) * | 2021-10-12 | 2024-01-23 | 南方电网数字电网研究院有限公司 | Process layer double-network sampling data processing method and protection device for intelligent substation |
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