CN103414251A - Substation network communication simulation system based on IEC 61850 - Google Patents

Substation network communication simulation system based on IEC 61850 Download PDF

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CN103414251A
CN103414251A CN2013103755367A CN201310375536A CN103414251A CN 103414251 A CN103414251 A CN 103414251A CN 2013103755367 A CN2013103755367 A CN 2013103755367A CN 201310375536 A CN201310375536 A CN 201310375536A CN 103414251 A CN103414251 A CN 103414251A
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network
computer
communication
mms
slave computer
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CN2013103755367A
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CN103414251B (en
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张建忠
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南京匹瑞电气科技有限公司
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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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems 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
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • 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
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

Abstract

The invention discloses a substation network communication simulation system based on an IEC 61850. The substation network communication simulation system based on the IEC 61850 comprises an upper computer, internal communication network cables, a lower computer, an MMS network, a GOOSE/SMV network and a point-to-point network. The upper computer is connected with the MMS network through a station level MMS communication interface. The MMS network is connected with a station level IEC 61850 client side system. The lower computer is provided with a plurality of network interfaces which comprise the lower computer internal communication interface, the interlayer communication interface and the process level GOOSE/SMV communication interface. The substation network communication simulation system based on the IEC 61850 can simulate communication motions of various devices such as the IEC, a monitoring protecting device and a monitoring back stage, complete the simulation of a substation IEC 61850 communication network and achieve the operation of uniformity testing, interoperability testing, performance testing and the like of the substation IEC 61850 communication network.

Description

A kind of analogue system of substation network communication based on IEC61850

Technical field

The invention belongs to the digital transformer substation technical field, be specifically related to a kind of network service of digital transformer substation based on IEC61850 analogue system.

Background technology

The intelligent grid requirement, from the whole electrical network of generating, the distribution of transmitting electricity, comprises that system and components and parts are reliable, safety, can guarantee continuity, the fail safe of powering, and this also has higher requirement to power industry.Comprise that the industrialized country of the U.S. is gathering the strength of enterprise and research institution, strengthen intellectual technology tackling key problem and achievement and promote, actively promote research and development and the application such as smart machine, intelligent appliance.The communication network development of intelligent substation has been abandoned the stipulations such as the communication modes such as legacy network such as CAN net, serial ports and IEC103, all adopt the IEC61850 standard based on international uniform to communicate by Ethernet, utilize OO idea about modeling, adopt the abstract communication interface technique, realized in transformer station seamless communication between each equipment and system.

Along with the development of intelligent substation digitlization and networking, and the IEC61850 standard is in the extensive use of intelligent substation, and the reliability requirement of intelligent substation communication network is more and more higher.At present, the communication that clearly proposes intelligent substation equipment (or system) in the planning of China's intelligent grid should unify to adopt the IEC61850 standard, the communication network related in the intelligent substation station comprises sampled value SMV network, trip signal GOOSE network, station level MMS network etc., as shown in Figure 2.At present a lot of producers all according to the IEC61850-6SCL language compilation device model, but the standardization of model and standardization are good not, are easy to cause the problem of equipment interoperability.On concrete communication mode, some producer, for the existing application function of compatibility and traditional communication mode, often adopts the mode of stipulations transfer to realize IEC61850 communication by increasing the shutdown of IEC61850 communication network; Some producer adopts the mode of a plug-in intelligent cell or intelligent assembly to realize IEC61850 communication for primary equipment.The versatility of above two kinds of modes is undesirable, the low development cost that causes different application equipment to adopt IEC61850 communication of communication efficiency is higher, be not easy to safeguard etc. is unfavorable for the smart machine large-scale promotion.IEC61850 communication network for intelligent substation, except uniformity test, can also carry out HIST, before the system integration, carry out HIST, be conducive to find in advance and solve the Interoperability between the intelligent electronic device (IED) of different manufacturers, to reduce the time of Installation and Debugging.Except interoperability, Utilities Electric Co. may also be concerned about IED or the performance test of system under extreme case be comprised of IED, test is main checks whether IED and network system can bear excessive communication flows under this extreme case, and carry out normally interoperability and function, in order to estimate the margin of safety of electric substation automation system.Performance test also is used for detecting the transmission promptness of critical message (for example GOOSE message), and performance test can be estimated IED or the performance of integrated system aspect real-time more accurately.

Visible, all there are various uncertain factors in the real-time of net environment transfer of data, reliability, fail safe, how to assess the performance index of these networks, how to optimize the networking mode of these networks and network topology structure etc., how for the various abnormal problems in network application, to realize record, follow the tracks of and to pass judgment on, be all current problem demanding prompt solution.

Summary of the invention

The present invention is directed to existing digital transformer substation construction, maintenance, performance test requirements of one's work; a kind of analogue system of substation network communication based on IEC61850 is provided; this system can analog digital transformer station in the communication behavior of the equipment such as various IED, monitoring and protecting device, monitoring backstage; complete the emulation of digital transformer substation IEC61850 communication network, realize the work such as uniformity test, HIST, performance test to digital transformer substation IEC 61850 communication network.

The technical solution used in the present invention is: a kind of analogue system of substation network communication based on IEC61850 comprises host computer, intercommunication netting twine, slave computer, MMS network, GOOSE/SMV network and point to point network;

Described host computer is connected with the MMS network by station level MMS communication interface, host computer is connected with the intercommunication netting twine by host computer intercommunication interface, the other end of intercommunication netting twine is connected with the slave computer intercommunication interface of slave computer, and described MMS network is connected with station level IEC61850 FTP client FTP;

Described slave computer has a plurality of network interfaces, comprise slave computer intercommunication interface, wall communication interface and process layer GOOSE, SMV communication interface, slave computer is by process layer GOOSE, SMV communication interface, with GOOSE/SMV network, point to point network, be connected respectively, slave computer is connected to the IEC61850MMS network by the wall communication interface and communicates with other IED of wall.

As preferably, described host computer adopts Industrial PC Computer, utilizes host computer mainboard expansion slot to obtain the Fast Ethernet mouth of two gigabit speed, and a Fast Ethernet mouth is connected with the MMS network, and another Fast Ethernet mouth is connected with the intercommunication netting twine.

As preferably, described host computer comprises possessing four features: feature one is the monitoring and controlling slave computer, with slave computer, carry out two-way communication, monitor operating condition and the real time data of slave computer, support to issue by active the operating state that the orders such as control, the value of establishing change slave computer; Feature two is real-time Transmission of system emulation data and mutual, can receive the simulated events signal of slave computer and upgrade the model data that host computer is corresponding and then trigger the MMS service, also can forward the MMS control signal and to slave computer, do interlock and process; Feature three is the IEC61850/MMS communication capacities that possess many IED, supports to be connected with MMS and to communicate by letter with supervisory control of substation background computer as MMS client; Feature four is to possess human-computer interaction interface, provides with the friendly operation interface of many labels view that SCL model management, real time data monitor, simulation operations man-machine interaction feature.

As preferably, the embedded computer system that described slave computer system adopts high-performance microprocessor and real time operating system to form, expand the Fast Ethernet mouth of realizing a gigabit speed and the commodity ethernet mouth of a plurality of 100,000,000 speed by hardware interface.

As preferably; described slave computer possesses that the many IED of emulation receive in real time or process of transmitting layer GOOOSE, SMV data; and carry out data filtering and computing; automatically be written into model configuration the dynamic simulation IED various logic feature of each IED; comprise common observing and controlling, defencive function logic, and will on the output signal of logic, deliver to host computer.

Beneficial effect: the present invention adopts the Fast Ethernet mouth of host computer and slave computer, a plurality of Ethernet interfaces of slave computer to form the simulation communication network of transformer substation IEC 61850, the communication behavior of various smart machines on can analog digital transformer substation IEC 61850 network, consistency check for digital transformer substation IEC61850 communication, the network real-time performance, the work such as data packet transmission reliability and correctness, have that networking is easy, cost is low, use advantage flexibly.

The accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is the digital transformer substation network service structure chart based on IEC61850.

Fig. 3 is the structure chart that the present invention is applied to digital transformer substation network service.

In figure, have: host computer 1, intercommunication netting twine 2, slave computer 3, MMS network 4, GOOSE/SMV network 5, point to point network 6, the substation network communication analogue system 7 based on IEC61850, monitoring backstage 8, remote terminal unit 9, protection substation 10, monitoring and protection terminal 11, intelligent terminal 12, merge cells 13, control terminal 14, voltage transformer 15, electric mutual inductor 16, intelligent breaker 17.

Embodiment

The invention will be further described below in conjunction with accompanying drawing.

As seen from Figure 1, a kind of analogue system of substation network communication based on IEC61850, comprise host computer 1, intercommunication netting twine 2, slave computer 3, MMS network 4, GOOSE/SMV network 5 and point to point network 6, described host computer 1 is connected with MMS network 4 by station level MMS communication interface, host computer 1 is connected with intercommunication netting twine 2 by host computer intercommunication interface, the other end of intercommunication netting twine 2 is connected with the slave computer intercommunication interface of slave computer 3, described MMS network 4 is connected with station level IEC61850 FTP client FTP, described slave computer 3 has a plurality of network interfaces, comprise slave computer intercommunication interface, wall communication interface and process layer GOOSE, the SMV communication interface, slave computer 3 is by process layer GOOSE, the SMV communication interface, respectively with GOOSE/SMV network 5, point to point network 6 connects, slave computer 3 is connected to the IEC61850MMS network by the wall communication interface and communicates with other IED of wall.

As seen from Figure 2; the schematic network structure of digital transformer substation, comprise monitoring backstage 8, remote terminal unit 9, protection substation 10, monitoring and protection terminal 11, intelligent terminal 12, merge cells 13, control terminal 14, voltage transformer 15, electric mutual inductor 16, intelligent breaker 17, MMS network 4, GOOSE/SMV network 5, point to point network 6.

As seen from Figure 3, apply the structure chart of digital transformer substation network service of the present invention, comprise the substation network communication analogue system 7 based on IEC61850, monitoring backstage 8, remote terminal unit 9, protection substation 10, monitoring and protection terminal 11, intelligent terminal 12, merge cells 13, control terminal 14, voltage transformer 15, electric mutual inductor 16, intelligent breaker 17, MMS network 4, GOOSE/MMS network 5, point to point network 6, based on the substation network communication simulator 7 of IEC61850, be positioned at the wall of digital transformer substation, respectively with MMS network 4, GOOSE/SMV network 5, point to point network 6 is connected with the intercommunication netting twine.

Press Fig. 1 and Fig. 3, the operation principle of analogue system is as follows:

Simulator is comprised of slave computer and host computer two parts, by the 100 m ethernet port, completes communication connection and intercommunication between the two.

Slave computer is responsible for the emulation of cell device real-time processing module, is comprised of device real-time data signal storehouse, GOOSE simulation communication module, SMV communication module, logical simulation module, intercommunication module etc.Wherein, device real-time data signal storehouse, the model information after resolving according to host computer builds and the living application signal library of actual device.GOOSE simulation communication module and SMV communication module are responsible for respectively receiveing and processing subscriptions from process-level network GOOSE message and the SMV message of readding, and give the logical simulation module and process, but the while is the deal with data of receive logic emulation module also, response concurrent send GOOSE message and SMV message to the process layer network.The logical simulation module; be responsible for the logic judgement of the protection of dummy spacers layer or measure and control device; the SMV sampled value is carried out to filtering and calculating; other input signals such as comprehensive GOOSE, intake; completion logic computing and analysis judgement; and operation result is passed to the GOOSE communication module for tripping operation, or pass to the intercommunication module on signal, sending.The intercommunication module is responsible for sending the MMS service module of delivering to host computer on the result of logical operation and is carried out sending in signal processing and report, and simultaneously, the control command that receives host computer is given other modules of slave computer and processed.

Host computer is responsible for the emulation of cell device Non real-time processing module, is comprised of SCD model file parsing module, IEC61850 internal storage data library module, IEC61850/MMS communication module, intercommunication module, human-computer interaction interface module etc.Wherein, SCD model file parsing module, be responsible for resolving the SCD model file and forming the application signal library in the DOM mode giving slave computer, forms simultaneously the internal memory tree data structure and offer IEC61850 internal storage data library module.IEC61850 internal storage data library module, responsible structure meet the required tree-like memory database of stratification of IEC61850ACSI service.IEC61850/MMS communication service module is responsible for realizing communication mapping and the MMS message communication of IEC61850ACSI communication interface, IEC61850ACSI/MMS, externally is responsible for communicating with IEC61850 FTP client FTP system.The intercommunication module is responsible for data communication and the information interaction of host computer and slave computer.The human-computer interaction interface module is responsible for the human-computer interaction interface that provides friendly and interface completes model file selection, parameter configuration, data monitoring, operation and controlling etc. for the user.

Analogue system, by the linkage work of host computer and slave computer, can complete the operation emulation of many transformer station's cell devices, and is applied to solve the various application scenarios such as intelligent substation function debugging, check and test, laboratory simulations.

During actual motion, the ethernet port of analogue system slave computer is connected respectively to GOOSE network and the sampled value SMV network of Substation process-level, the ethernet port of analogue system host computer is connected to the MMS network of transformer station's station level, as shown in Figure 1.

Electrifying startup host computer and slave computer, at the SCD of the upper computer selecting transformer station system model file of entirely standing, be written into the SCD model, selection needs the IED of emulation, after carrying out necessary configuration, simulation software simulations signal library and the emulation logic storehouse of host computer, and automatically complete the initialization of the database of upper and lower computer, then carry out the real time execution that each application process module of upper and lower computer can one or more cell devices of emulation.

The sampled value IEC61850/SMV message of analogue system receiving course layer network (for example short circuit moment current sampling data message group); at this moment certain simple and easy logic function of simulator such as overcurrent I segment protect, distance protections etc. should be triggered; and use the IEC61850/GOOSE message to send trip signal to the IEDZ that has subscribed to this message (being assumed to be intelligent breaker); after IEDZ does the tripping operation processing, send circuit-breaker status to simulator by the IEC61850/GOOSE message.By analysis tool, arrest, record and analyze the related news on LAN, can check and verify the function of the intelligent terminal of intelligent breaker or circuit breaker, estimate interoperability each other.

Simultaneously; analogue system is according to the GOOSE configuration relation in model; automatically trigger the IEC61850/GOOSE message and send the connection block signal to other cell devices IEDX that has subscribed to this message; such as answering between the different protections of the high, medium and low side of transformer presses off lock signal, wall five prevention logic block signal etc.; by following the tracks of and catching relevant information, can check and verify whether the function of other cell devices IEDX correctly responds.

In addition; analogue system is after simple and easy logical action; can emulation produce corresponding logic event signal; as protect action, protection alarm event and empty remote signalling etc.; these signals meeting automatic mappings are to the IEC61850 memory database of analogue system host computer; and the report service of triggering for generating IEC61850/ACSI, by the MMS communication module, the MMS message up sending of change events is arrived to IEC61850 FTP client FTP such as supervisory control of substation backstage or the protection substation be connected with host computer.By the logical simulation of analogue system, repeatedly repeat above experiment, can carry out function debugging and checking to station control systems such as supervisory control of substation backstage or protection substations.

Finally, analogue system also can be simulated and produce the network context flow, by setting some simulation parameters such as IED emulation number, simple and easy logic definite value, signal intensity frequency, transmission time interval etc., make analogue system meet at short notice trigger conditions in enormous quantities.Now, the event of a lot of IED of the analogue system concurrent emulation of meeting, thereby can produce the GOOSE application message under a large amount of real scenes at process layer GOOSE network, at the station level network, produce MMS application message under a large amount of real scenes, thereby to other IED under transformer station's consolidated network or IEC61850 FTP client FTP, whether can bear excessive communication flows under this extreme case, and carry out normally interoperability and function is tested and verifies.

It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each part all available prior art realized.

Claims (5)

1. the analogue system of the substation network communication based on IEC61850, is characterized in that: comprise host computer, intercommunication netting twine, slave computer, MMS network, GOOSE/SMV network and point to point network;
Described host computer is connected with the MMS network by station level MMS communication interface, host computer is connected with the intercommunication netting twine by host computer intercommunication interface, the other end of intercommunication netting twine is connected with the slave computer intercommunication interface of slave computer, and described MMS network is connected with station level IEC61850 FTP client FTP;
Described slave computer has a plurality of network interfaces, comprise slave computer intercommunication interface, wall communication interface and process layer GOOSE, SMV communication interface, slave computer is by process layer GOOSE, SMV communication interface, with GOOSE/SMV network, point to point network, be connected respectively, slave computer is connected to the IEC61850MMS network by the wall communication interface and communicates with other IED of wall.
2. a kind of analogue system of substation network communication based on IEC61850 according to claim 1, it is characterized in that: described host computer adopts Industrial PC Computer, utilize host computer mainboard expansion slot to obtain the Fast Ethernet mouth of two gigabit speed, a Fast Ethernet mouth is connected with the MMS network, and another Fast Ethernet mouth is connected with the intercommunication netting twine.
3. a kind of analogue system of substation network communication based on IEC61850 according to claim 2, it is characterized in that: described host computer comprises possessing four features: feature one is the monitoring and controlling slave computer, with slave computer, carry out two-way communication, monitor operating condition and the real time data of slave computer, support to issue by active the operating state that the orders such as control, the value of establishing change slave computer; Feature two is real-time Transmission of system emulation data and mutual, can receive the simulated events signal of slave computer and upgrade the model data that host computer is corresponding and then trigger the MMS service, also can forward the MMS control signal and to slave computer, do interlock and process; Feature three is the IEC61850/MMS communication capacities that possess many IED, supports to be connected with MMS and to communicate by letter with supervisory control of substation background computer as MMS client; Feature four is to possess human-computer interaction interface, provides with the friendly operation interface of many labels view that SCL model management, real time data monitor, simulation operations man-machine interaction feature.
4. a kind of analogue system of substation network communication based on IEC61850 according to claim 1, it is characterized in that: the embedded computer system that described slave computer system adopts high-performance microprocessor and real time operating system to form, by hardware interface, expand the Fast Ethernet mouth of realizing a gigabit speed and the commodity ethernet mouth of a plurality of 100,000,000 speed.
5. a kind of analogue system of substation network communication based on IEC61850 according to claim 4; it is characterized in that: described slave computer possesses that the many IED of emulation receive in real time or process of transmitting layer GOOOSE, SMV data; and carry out data filtering and computing; automatically be written into model configuration the dynamic simulation IED various logic feature of each IED; comprise common observing and controlling, defencive function logic, and will on the output signal of logic, deliver to host computer.
CN201310375536.7A 2013-08-26 2013-08-26 A kind of substation network communication analogue system based on IEC61850 CN103414251B (en)

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CN104502748A (en) * 2014-12-03 2015-04-08 国家电网公司 Transformer station integrated automatic test system
CN104868599A (en) * 2015-05-29 2015-08-26 国网河南省电力公司电力科学研究院 Intelligent substation message simulation test and association analysis system, and simulation method
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CN105790441A (en) * 2016-05-02 2016-07-20 国家电网公司 Intelligent transformer substation relay protection inspection system
CN105824001A (en) * 2015-01-06 2016-08-03 国家电网公司 Digital electric energy meter IEC61850 conformance testing method and system
CN106209418A (en) * 2016-06-27 2016-12-07 哈尔滨工业大学 A kind of intelligent substation GOOSE message simulation generates and detection method
CN106329720A (en) * 2016-05-13 2017-01-11 中国电力科学研究院 Detecting and debugging method for reconstruction and extension project secondary system for intelligent substation
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CN106712287A (en) * 2016-11-21 2017-05-24 国家电网公司 Intelligent alarm analysis system of intelligent transformer substation
CN106789321A (en) * 2017-01-04 2017-05-31 深圳市国电科技通信有限公司 A kind of route networking performance estimating method and its device based on open interconnection standard
CN106872886A (en) * 2017-02-10 2017-06-20 平高集团有限公司 A kind of Intellectualized Switchgear detection debugging apparatus, system and joint debugging method
CN108400908A (en) * 2018-02-11 2018-08-14 国网江苏省电力有限公司电力科学研究院 Supervisory control of substation information checks and accepts device and method automatically

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