CN103033703B - A kind of online, intelligent substation analysis test method of off-line integral type - Google Patents

A kind of online, intelligent substation analysis test method of off-line integral type Download PDF

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Publication number
CN103033703B
CN103033703B CN201210532798.5A CN201210532798A CN103033703B CN 103033703 B CN103033703 B CN 103033703B CN 201210532798 A CN201210532798 A CN 201210532798A CN 103033703 B CN103033703 B CN 103033703B
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China
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message
network
analysis
information
mms
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CN201210532798.5A
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Chinese (zh)
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CN103033703A (en
Inventor
沈冰
周健
庄黎明
曾平
周德生
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上海市电力公司
华东电力试验研究院有限公司
国家电网公司
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Priority to CN201210532798.5A priority Critical patent/CN103033703B/en
Publication of CN103033703A publication Critical patent/CN103033703A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • 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
    • Y02E60/7807
    • 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
    • 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

Abstract

The present invention's is a kind of online, the intelligent substation analysis test method of off-line integral type, network service is analyzed module by on-line monitoring part, SV real-time Communication for Power structure and message analysis logging modle, GOOSE real-time Communication for Power structure and message analysis logging modle, MMS real-time Communication for Power structure and message analysis logging modle and there is calculating master-salve clock side-play amount and network delay correction effectively integrates from 1588 clock synchronization modules of equipment clock function, make to which give intelligent substation Unit Level and system level testing ability, and off-line analysis method is contrasted with above-mentioned the obtained data of on line real-time monitoring method, further confirm that every operating parameters of intelligent substation is the most normal, improve the accuracy of overall data, it is applicable to transformer station's detection field of intelligent grid.

Description

A kind of online, intelligent substation analysis test method of off-line integral type
Technical field
The present invention relates to a kind of analysis test method to power system, particularly relate to a kind of can off-line or online use The platform that the ruuning situation to intelligent substation of integral type is analyzed and tests.
Background technology
Growing along with modernization construction, also makes rapid progress with the intelligent power grid technology of its auxiliary construction, wherein, Intelligent power grid technology development be unable to do without high-level scheduling center and intelligent substation, and high-level scheduling center is equivalent to the big of electrical network Brain, intelligent substation is eyes and trick, it is ensured that in real time comprehensively information gathering and reliably order execution accurately;With Substation informatization, significantly and generally the promoting and progressively shape of automaticity, it is possible to fully realize high-level scheduling The instruction effect at center, promotes executive capability;When electrical network gradually forms strong, spontaneous recovery, the characteristic such as flexibly, progressively send out Generated is intelligent grid.
Along with the construction at high-level scheduling center, will progressively possess the ability controlling complex large power grid and possibility.Numerous Senior control function, including the optimization of trend, powerful on-line analysis, the early warning of accident, the disposal of emergency, Recovery afterwards etc. all relies on the rapid decision-making of high-level scheduling central science, and first the decision-making at high-level scheduling center needs Electric network information timely, sufficient, and intelligent substation will undertake all kinds of real-time, non-real-time information of collection electrical network, press It is sent to high-level scheduling center according to transient state, dynamic, static classification and transmission requirement.On the other hand, high-level scheduling center The implementation capacity of decision-making and execution efficiency the most also fall at intelligent substation, every control finally realize the overwhelming majority Need to be completed by intelligent substation.
In sum, now need one can tackle intelligent substation to change at construction automation of transformation substations laboratory, digitized Situation after making, can be combined in line analysis ability and a kind of flexible of off-line simulation ability, the one of seamless link Change technique verification platform, thus while smart machine being verified, testing, additionally it is possible to the reason to intelligent substation Opinion, information tissue, to a high-profile interface etc. carry out studying and pilot, prior, in the continuous evolution of intelligent substation technology During, this platform can be relied on to follow the tracks of closely and have the breakthrough of emphasis.
Summary of the invention
In order to solve the variety of problems that transformer station produces after digital improvement and automation of transformation substations laboratory, and can be real The high integration of existing existing resource and the directly cooperation of production, teaching & research, enter for effective guarantee intelligent substation, intelligent grid Journey, and can support and drive development and the maturation of intelligent power grid technology within one considerably long period, become promoting Power station is information-based, automaticity is effectively to promote the Intelligent Process of electrical network during a spiral, this Invention provides a kind of online, intelligent substation analysis test method of off-line integral type, by being imitated by laboratory off-line Effective seamless combination of the on-line analysis ability at true ability and pilot interval, will promote the scientific and technological level of electrical network effectively, Thus realize more reliable, safer, more economical operation, make electrical network stronger and flexible, the concrete side of the present invention Case is as described below:
A kind of online, intelligent substation analysis test method of off-line integral type, including online method for real-time monitoring and from Provision of on-line analysis methodology, it is characterised in that:
Described on line real-time monitoring method includes that module, SV real-time Communication for Power structure and message analysis note are analyzed in network service Record module, GOOSE real-time Communication for Power structure and message analysis logging modle, MMS real-time Communication for Power structure and message analysis record Module calculates master-salve clock side-play amount and the network delay correction 1588 clocks synchronization moulds from equipment clock function with having Block;
Described off-line analysis method includes communications records information module that the mode that is directly connected to connects, communication synchronization is sent out Send module and synchronized transmission mixed-media network modules mixed-media.
A kind of online, the intelligent substation analysis test method of off-line integral type according to the present invention, it is characterised in that Described network service is analyzed module and is divided into substation level, wall and process layer three part:
(1) process layer devices realizes all and interface related function of primary equipment, by ac sampling signal and direct current shape State signal is converted into digital signal on the spot, is digitized and the intelligent interface of primary equipment;
(2) major function of bay device be acquisition interval primary equipment signal and to primary equipment produce tripping operation, The effects such as control, and station level equipment will be given in relevant information and accept the order of station level equipment;
(3) function of station level equipment be utilize full station information that secondary device at full station is monitored and control with And with the communication of distant place control centre.
A kind of online, the intelligent substation analysis test method of off-line integral type according to the present invention, it is characterised in that Described substation level, wall and process layer, realizes data by network service between this three-layer equipment and exchanges and letter Breath is shared, and wherein, the network between process layer and bay device is process-level network, and its Content of Communication is that exchange is adopted Signal 1588 when sample signal SV, DC state signal GOOSE and hard pair, between bay device and station level equipment Network is station level network, its Content of Communication be full station protection information, four distant data and be there is a need to monitor information MMS, soft pair time signal SNTP.
Purpose of design is herein, and the network structure of intelligent substation is maximum with the network structure of conventional digital transformer substation Difference is that protective relaying device passes through point-to-point communication and realizes directly sampling and directly tripping operation, it is achieved that relay is protected The independence of protection unit, substantially increases reliability and the safety of protective relaying device.
A kind of online, the intelligent substation analysis test method of off-line integral type according to the present invention, it is characterised in that Described SV communication structure and message analysis logging modle, its flow process is, SV communication structure is mapped to the thing of Ethernet Reason layer and data link layer, transmit message analysis logging modle, then to this SV by the way of multicast transmission network Message carries out break-make analysis and message Continuity Analysis, it is judged that whether this SV message meets SV application protocol requirement, During analysis, if judging, SV message does not meets SV application protocol requirement, then this SV message is classified as error message, Identify its type of error, and shown, for error message, if erroneous effects subsequent treatment, then after being identified, Directly process next message, for correct message, this message is carried out applied analysis, it is judged that single message or message Whether application process exists mistake.
A kind of online, the intelligent substation analysis test method of off-line integral type according to the present invention, it is characterised in that The mode of described multicast transmission network is divided into by switching equipment network and point-to-point directly-connected network:
(1) by under switching equipment network transmission mode, combining unit and device are all connected on the network switching equipment, All information common networks transmit, and data flow is then determined by information such as multicast address, vlan information and APPID;
(2) under point-to-point directly-connected network transmission mode, each MU sampled value output interface directly passes through optical fiber to relevant The sampled value input interface of device is connected;
When sampled value sends by the way of above-mentioned, all combining units and device are all connected with the network switching equipment, close And sampled value information is sent in the middle of network by the switching equipment being connected by unit, device then passes through switching equipment from net Obtain sampled value information on network, and it is stable to record sampled value integrity, sampled point interval stability and sampling transmission delay Property.
Purpose of design is herein, and from theory, in the case of transmission medium is normal, sampled value is by exchange Device network transmits, and due to the transmission having got involved sampled value of the network switching equipment, point to point network transmission does not comprises Any intermediate link, therefore the result of both transmission means certainly exists difference.
From the point of view of sampling value message, affect whole sampled value product qualitative factor have following some:
(1) integrity of integrity, i.e. sampled point, in transmitting procedure, sampled point is not lost, and information dropout is then reported to the police, The feature transmitted due to information and network structure and the impact of network exchange, information dropout is inevitable, therefore information Lose and impact is the problem that must take into.Whether the research emphasis of this aspect is existed information dropout phenomenon, and The impact that equipment is run by information dropout;
(2) dispersion, refers to the interval stability of sampled point, due to network structure and the impact of network exchange, sampled point Interval can inevitably be affected.The research emphasis of this aspect is which type of ripple sampled point interval can produce Dynamic, and the impact that equipment is run by fluctuation, as a example by every cycle 80 point sampling, each second 4000, each sampled point was equal Even distribution, the time difference between adjacent two points is 250 microseconds;
(3) synchronicity, refers to the synchronicity of sampled value waveform, the most same sampling between the analog voltage MU of different manufacturers Time error between point, this time error is transmission delay stability., due to network structure and the shadow of network exchange Ring, sampling time delay and sampling time delay fluctuation can be inevitably generated.The research emphasis of this aspect is sampled value Transmission delay is in any level, and can produce which type of fluctuation, and equipment is produced by produced time delay and fluctuation meeting Which type of impact raw;
(4) concordance.Refer to that (transformer accesses letter for the concordance of combining unit waveform processing, i.e. combining unit input Number) concordance of sampled value waveform and outfan sampled value waveform.
In the middle of above-mentioned several factors, in addition to the performance that concordance directly reflects combining unit, synchronicity, dispersion And the final response of integrity all has network transmission to determine, therefore sampled value communication structure emphasis is from these three Aspect is investigated.
A kind of online, the intelligent substation analysis test method of off-line integral type according to the present invention, it is characterised in that Described GOOSE communication structure and message analysis logging modle, its flow process is, GOOSE communication structure is mapped to ether The physical layer of net and data link layer, transmit message analysis logging modle, then by the way of multicast transmission network This GOOSE message is carried out break-make analysis and message Continuity Analysis, it is judged that whether this GOOSE message meets GOOSE Application protocol requirement, during analyzing, if judging, GOOSE message does not meets GOOSE application protocol requirement, then This GOOSE message is classified as error message, identifies its type of error, and shown, for error message, if wrong Affect subsequent treatment by mistake, then, after being identified, directly process next message, for correct message, this message is entered Row applied analysis, it is judged that whether single message or application of electronic report process exist mistake.
A kind of online, the intelligent substation analysis test method of off-line integral type according to the present invention, it is characterised in that The mode of described multicast transmission network is divided into by switching equipment network and point-to-point directly-connected network:
(1) under the transmission mode by switching equipment network, each device is all connected on the network switching equipment, all Information common network transmits, and it is true that data flow then controls the information such as block title by multicast address, vlan information and GOOSE Fixed;
(2) under the transmission mode of point-to-point directly-connected network, each apparatus GOOSE output interface is directly by optical fiber and phase The GOOSE interface closing device is connected;
When sampled value sends by the way of above-mentioned, all devices are all connected with the network switching equipment, and all devices then lead to Cross switching equipment from network, obtain sampled value information, and record transmission stability and signal intensity integrity.
Purpose of design is herein, is based entirely on network due to the transmission of GOOSE and the network switching equipment is carried out, and right The record of GOOSE, not only to record the transmitting procedure of GOOSE itself, also to record GOOSE and pass The enforcement state of defeated residing network environment, the GOOSE information therefore recorded also must obtain from the network switching equipment, Realize the record to GOOSE and network environment thereof simultaneously.
A kind of online, the intelligent substation analysis test method of off-line integral type according to the present invention, it is characterised in that Described MMS real-time Communication for Power structure and message analysis logging modle, its flow process is as follows:
(1) client MMS connection request;
(2) service end MMS connection replys, accepts or refuses, if accepting, then continues;
(3) client MMS initialization requests;
(4) service end MMS initializes response acceptance, refusal or failure, if accepting, then continues;
(5) the application communication process of service based on MMS request/response and unresponsive service starts;
(6) the MMS message starting that device MMS communication end or backstage MMS communication end are obtained carry out networking layer analysis and Communication process is analyzed, it is judged that whether this MMS message meets MMS application protocol requirement, first, carries out MMS message Internet is analyzed, it is judged that its information type is the most legal, and carries out topological analysis, it is judged that MMS message TCP/IP address The most legal, port numbers is the most legal, secondly, the communication process of MMS message is analyzed, including break-make analysis With message Continuity Analysis, during analyzing, also it is by leading to during either it being carried out Internet analysis During letter process analysis, if judging, MMS message does not meets MMS application protocol requirement, then by this MMS message It is classified as error message, identifies its type of error, and shown.For error message, if erroneous effects subsequent treatment, After being then identified, directly process next message;For correct message, then this message is carried out applied analysis, sentence Whether disconnected single message or application of electronic report process exist mistake.
Purpose of design is herein, and in the middle of the switch that Practical Project is used, substation level switch is provided with end Mouthful mapping function, all data of a port will be mapped to another one port up, when monitoring, as The switch ports themselves connecting background monitoring is mapped to another port up, then by this port and communication intercept by fruit Device is connected, and can successfully realize the monitoring of substation level information.
A kind of online, the intelligent substation analysis test method of off-line integral type according to the present invention, it is characterised in that The communications records information module of described off-line analysis method, communication synchronization sending module and synchronized transmission mixed-media network modules mixed-media, It concretely comprises the following steps, and synchronized transmission is passed through in communications records information module communications records equipment from system or testing ground Equipment obtains information, these communication message contents and temporal information thereof are saved in specific region in a file format In the middle of, from file, then extract message content and temporal information, carry out integrated treatment, then sent out by communication synchronization Sending module to be sent to target communication network and equipment from the network interface specified, synchronized transmission mixed-media network modules mixed-media is then at mesh In the case of mark network condition possesses, communication synchronization sending module can be attached with objective network, need when connecting First to determine in transmission information, the target of every kind of message and corresponding send the information such as port, by communication synchronization Each of sending module sends port, the network equipment corresponding with objective network and the corresponding port of the equipment of operation Couple together, reappear network state at that time.
Purpose of design is herein, off-line analysis method is carried out with above-mentioned the obtained data of on line real-time monitoring method Contrast, further confirms that every operating parameters of intelligent substation is the most normal, improves the accuracy of overall data.
In sum, the correctness of intelligent transformer substation information and integrity not only directly influence the reality of intelligent substation Existing degree, the running status of intelligent substation also places one's entire reliance upon the integrated treatment to acquired information simultaneously, the most such as What ensures in time, accurately, intactly to obtain enough substation operation information, and quickly combines these information Conjunction processes, and holds in real time and the running status of prediction intelligent substation, various abnormal conditions is carried out early warning, adopts in time The trouble-saving generation of the measure that takes, thus according to the actual operating state of transformer station, the operation of transformer station is commented continuously Estimate, be to ensure that the urgent needs of intelligent substation engineering construction and operation maintenance.
A kind of online, the intelligent substation analysis test method of off-line integral type that use the present invention obtain the most useful Effect:
1. a kind of online, the intelligent substation analysis test method of off-line integral type of the present invention, on-line monitoring part will Module, SV real-time Communication for Power structure and message analysis logging modle, GOOSE real-time Communication for Power structure and report are analyzed in network service Literary composition is analyzed logging modle, MMS real-time Communication for Power structure and message analysis logging modle and has calculating master-salve clock side-play amount Effectively integrate from 1588 clock synchronization modules of equipment clock function with network delay correction so that it is obtain intelligence Transforming plant apparatus level and system level testing ability;
2. a kind of online, the intelligent substation analysis test method of off-line integral type of the present invention, off-line analysis method with Above-mentioned the obtained data of on line real-time monitoring method contrast, and further confirm that every running ginseng of intelligent substation Number is the most normal, improves the accuracy of overall data.
Accompanying drawing explanation
Fig. 1 is that the overall step of the intelligent substation analysis test method of a kind of online, the off-line integral type of the present invention is shown It is intended to.
Fig. 2 is the signal transmission schematic diagram of SV real-time Communication for Power structure and message analysis logging modle;
Fig. 3 is the message accounting process schematic of SV real-time Communication for Power structure and message analysis logging modle;
Fig. 4 is the signal transmission schematic diagram of GOOSE real-time Communication for Power structure and message analysis logging modle;
Fig. 5 is the message accounting process schematic of GOOSE real-time Communication for Power structure and message analysis logging modle;
Fig. 6 be MMS real-time Communication for Power structure and message analysis logging modle signal transmission schematic diagram;
Fig. 7 be MMS real-time Communication for Power structure and message analysis logging modle message accounting process schematic;
A kind of off-line analysis method of the intelligent substation analysis test method of online, the off-line integral type of Fig. 8 present invention The schematic diagram of communications records information module;
Fig. 9 is the schematic diagram of the communication synchronization sending module of off-line analysis method;
Figure 10 is the schematic diagram of the synchronized transmission mixed-media network modules mixed-media of off-line analysis method.
Detailed description of the invention
With embodiment, the intelligent substation analysis a kind of online, off-line integral type of the present invention is tested below in conjunction with the accompanying drawings Method is further described.
Embodiment
As it is shown in figure 1, a kind of online, intelligent substation analysis test method of off-line integral type, including online real-time Monitoring method and off-line analysis method, on line real-time monitoring method includes that module, SV real-time Communication for Power knot are analyzed in network service Structure and message analysis logging modle, GOOSE real-time Communication for Power structure and message analysis logging modle, MMS real-time Communication for Power structure And message analysis logging modle calculates master-salve clock side-play amount and network delay correction from equipment clock function with having 1588 clock synchronization modules;
Off-line analysis method includes communications records information module, the communication synchronization sending module that the mode that is directly connected to connects With synchronized transmission mixed-media network modules mixed-media.
Network service is analyzed module and is divided into substation level, wall and process layer three part:
(1) process layer devices realizes all and interface related function of primary equipment, by ac sampling signal and direct current shape State signal is converted into digital signal on the spot, is digitized and the intelligent interface of primary equipment;
(2) major function of bay device be acquisition interval primary equipment signal and to primary equipment produce tripping operation, The effects such as control, and station level equipment will be given in relevant information and accept the order of station level equipment;
(3) function of station level equipment be utilize full station information that secondary device at full station is monitored and control with And with the communication of distant place control centre.
Substation level, wall and process layer, realize data by network service between this three-layer equipment and exchange and information Sharing, wherein, the network between process layer and bay device is process-level network, and its Content of Communication is AC sampling Signal 1588 when signal SV, DC state signal GOOSE and hard pair, the net between bay device and station level equipment Network is station level network, its Content of Communication be full station protection information, four distant data and be there is a need to monitor information MMS, Signal SNTP when soft couple.
The network structure of intelligent substation is relay with the network structure maximum difference of conventional digital transformer substation Protection device realizes directly sampling and directly tripping operation by point-to-point communication, it is achieved that the independence of protective relaying device, Substantially increase reliability and the safety of protective relaying device.
Referring to figs. 2 and 3 shown, SV communication structure and message analysis logging modle, its flow process is, SV communication structure It is mapped to physical layer and the data link layer of Ethernet, by the way of multicast transmission network, transmits message analysis record Module, then carries out break-make analysis and message Continuity Analysis to this SV message, it is judged that whether this SV message meets SV Application protocol requirement, during analyzing, if judging, SV message does not meets SV application protocol requirement, then by this SV Message is classified as error message, identifies its type of error, and is shown, for error message, if erroneous effects is follow-up Process, then, after being identified, directly process next message, for correct message, this message is carried out applied analysis, Judge whether single message or application of electronic report process exist mistake.
The mode of the multicast transmission network of SV communication structure and message analysis logging modle is divided into by switching equipment network With point-to-point directly-connected network:
(1) by under switching equipment network transmission mode, combining unit and device are all connected on the network switching equipment, All information common networks transmit, and data flow is then determined by information such as multicast address, vlan information and APPID;
(2) under point-to-point directly-connected network transmission mode, each MU sampled value output interface directly passes through optical fiber to relevant The sampled value input interface of device is connected;
When sampled value sends by the way of above-mentioned, all combining units and device are all connected with the network switching equipment, close And sampled value information is sent in the middle of network by the switching equipment being connected by unit, device then passes through switching equipment from net Obtain sampled value information on network, and it is stable to record sampled value integrity, sampled point interval stability and sampling transmission delay Property.
From theory, in the case of transmission medium is normal, sampled value is transmitted by switching equipment network, due to The transmission having got involved sampled value of the network switching equipment, point to point network transmission does not the most comprise any intermediate link, because of The result of this both transmission means certainly exists difference.
From the point of view of sampling value message, affect whole sampled value product qualitative factor have following some:
(1) integrity of integrity, i.e. sampled point, in transmitting procedure, sampled point is not lost, and information dropout is then reported to the police, The feature transmitted due to information and network structure and the impact of network exchange, information dropout is inevitable, therefore information Lose and impact is the problem that must take into.Whether the research emphasis of this aspect is existed information dropout phenomenon, and The impact that equipment is run by information dropout;
(2) dispersion, refers to the interval stability of sampled point, due to network structure and the impact of network exchange, sampled point Interval can inevitably be affected.The research emphasis of this aspect is which type of ripple sampled point interval can produce Dynamic, and the impact that equipment is run by fluctuation, as a example by every cycle 80 point sampling, each second 4000, each sampled point was equal Even distribution, the time difference between adjacent two points is 250 microseconds;
(3) synchronicity, refers to the synchronicity of sampled value waveform, the most same sampling between the analog voltage MU of different manufacturers Time error between point, this time error is transmission delay stability., due to network structure and the shadow of network exchange Ring, sampling time delay and sampling time delay fluctuation can be inevitably generated.The research emphasis of this aspect is sampled value Transmission delay is in any level, and can produce which type of fluctuation, and equipment is produced by produced time delay and fluctuation meeting Which type of impact raw;
(4) concordance.Refer to that (transformer accesses letter for the concordance of combining unit waveform processing, i.e. combining unit input Number) concordance of sampled value waveform and outfan sampled value waveform.
In the middle of above-mentioned several factors, in addition to the performance that concordance directly reflects combining unit, synchronicity, dispersion And the final response of integrity all has network transmission to determine, therefore sampled value communication structure emphasis is from these three Aspect is investigated.
With reference to shown in Fig. 4 and Fig. 5, GOOSE communication structure and message analysis logging modle, its flow process is, GOOSE Communication structure is mapped to physical layer and the data link layer of Ethernet, transmits message by the way of multicast transmission network Analyze logging modle, then this GOOSE message is carried out break-make analysis and message Continuity Analysis, it is judged that this GOOSE Whether message meets GOOSE application protocol requirement, and during analyzing, if judging, GOOSE message does not meets GOOSE Application protocol requirement, then be classified as this GOOSE message as error message, identifies its type of error, and is shown, right In error message, if erroneous effects subsequent treatment, then, after being identified, directly process next message, for correctly Message, carries out applied analysis to this message, it is judged that whether single message or application of electronic report process exist mistake.
The mode of the multicast transmission network of GOOSE communication structure and message analysis logging modle is divided into by switching equipment net Network and point-to-point directly-connected network:
(1) under the transmission mode by switching equipment network, each device is all connected on the network switching equipment, all Information common network transmits, and it is true that data flow then controls the information such as block title by multicast address, vlan information and GOOSE Fixed;
(2) under the transmission mode of point-to-point directly-connected network, each apparatus GOOSE output interface is directly by optical fiber and phase The GOOSE interface closing device is connected;
When sampled value sends by the way of above-mentioned, all devices are all connected with the network switching equipment, and all devices then lead to Cross switching equipment from network, obtain sampled value information, and record transmission stability and signal intensity integrity.
Purpose of design is herein, is based entirely on network due to the transmission of GOOSE and the network switching equipment is carried out, and right The record of GOOSE, not only to record the transmitting procedure of GOOSE itself, also to record GOOSE and pass The enforcement state of defeated residing network environment, the GOOSE information therefore recorded also must obtain from the network switching equipment, Realize the record to GOOSE and network environment thereof simultaneously.
With reference to shown in Fig. 6 and Fig. 7, MMS real-time Communication for Power structure and message analysis logging modle, its flow process is as follows:
(1) client MMS connection request;
(2) service end MMS connection replys, accepts or refuses, if accepting, then continues;
(3) client MMS initialization requests;
(4) service end MMS initializes response acceptance, refusal or failure, if accepting, then continues;
(5) the application communication process of service based on MMS request/response and unresponsive service starts;
(6) the MMS message starting that device MMS communication end or backstage MMS communication end are obtained carry out networking layer analysis and Communication process is analyzed, it is judged that whether this MMS message meets MMS application protocol requirement, first, carries out MMS message Internet is analyzed, it is judged that its information type is the most legal, and carries out topological analysis, it is judged that MMS message TCP/IP address The most legal, port numbers is the most legal, secondly, the communication process of MMS message is analyzed, including break-make analysis With message Continuity Analysis, during analyzing, also it is by leading to during either it being carried out Internet analysis During letter process analysis, if judging, MMS message does not meets MMS application protocol requirement, then by this MMS message It is classified as error message, identifies its type of error, and shown.For error message, if erroneous effects subsequent treatment, After being then identified, directly process next message;For correct message, then this message is carried out applied analysis, sentence Whether disconnected single message or application of electronic report process exist mistake.
In the middle of the switch that Practical Project is used, substation level switch is provided with port mapping function, Ji Jiangyi All data of individual port are mapped to another one port up, when monitoring, if background monitoring will be connected Switch ports themselves is mapped to another port up, is then connected with communication intercept device by this port, can success Realize the monitoring of substation level information.
As shown in Fig. 8, Fig. 9 and Figure 10, the communications records information module of off-line analysis method, communication synchronization send mould Block and synchronized transmission mixed-media network modules mixed-media, it concretely comprises the following steps, communications records information module communications records equipment from system Or testing ground is by obtaining information in synchronized transmission equipment, by these communication message contents and temporal information thereof with file Form be saved in the middle of specific region, from file, then extract message content and temporal information, carry out General Office Reason, is then sent to target communication network and equipment from the network interface specified by communication synchronization sending module, and Synchronized transmission mixed-media network modules mixed-media, can be by communication synchronization sending module and target network then in the case of objective network condition possesses Network is attached, need first to determine when connecting in transmission information, the target of every kind of message and sending accordingly The information such as port, by each transmission port of communication synchronization sending module, the network equipment corresponding with objective network And the corresponding port of the equipment of operation couples together, reappear network state at that time.
Off-line analysis method is contrasted with above-mentioned the obtained data of on line real-time monitoring method, further confirms that intelligence Every operating parameters of energy transformer station is the most normal, improves the accuracy of overall data.
A kind of online, the intelligent substation analysis test method of off-line integral type of the present invention, on-line monitoring part is by net Network communications analysis module, SV real-time Communication for Power structure and message analysis logging modle, GOOSE real-time Communication for Power structure and message Analyze logging modle, MMS real-time Communication for Power structure and message analysis logging modle and have calculating master-salve clock side-play amount and Network delay correction effectively integrates from 1588 clock synchronization modules of equipment clock function so that it is obtain intelligence change Power station device level and system level testing ability, and by off-line analysis method and above-mentioned the obtained number of on line real-time monitoring method According to contrasting, further confirm that every operating parameters of intelligent substation is the most normal, improve the standard of overall data Really property, it is adaptable to transformer station's detection field of intelligent grid.

Claims (7)

1. online, an intelligent substation analysis test method for off-line integral type, including online method for real-time monitoring and off-line analysis method, it is characterised in that:
Use network service analyze module, SV real-time Communication for Power structure and message analysis logging modle, GOOSE real-time Communication for Power structure and message analysis logging modle, MMS real-time Communication for Power structure and message analysis logging modle and have calculating master-salve clock side-play amount and network delay correction realize on line real-time monitoring method from 1588 clock synchronization modules of equipment clock function;
The communications records information module, communication synchronization sending module and the synchronized transmission mixed-media network modules mixed-media that connect to be directly connected to mode is used to realize off-line analysis method;
Described network service is analyzed module and is divided into substation level, wall and process layer three part:
(1) process layer devices realizes all and interface related function of primary equipment, ac sampling signal and DC state signal is converted into digital signal on the spot, is digitized and the intelligent interface of primary equipment;
(2) major function of bay device is the signal of acquisition interval primary equipment and primary equipment produces tripping operation, control action, and will give substation level equipment in relevant information and accept the order of substation level equipment;
(3) function of substation level equipment be utilize full station information secondary device at full station is monitored with control and with the communicating of distant place control centre;
Described substation level, wall and process layer; realize data by network service between this three-layer equipment to exchange and information sharing; wherein; network between process layer and bay device is process-level network; signal 1588 when its Content of Communication is ac sampling signal SV, DC state signal GOOSE and hard pair; network between bay device and substation level equipment is substation level network, its Content of Communication be full station protection information, four distant data and be there is a need to monitor information MMS, soft pair time signal SNTP.
null2. as claimed in claim 1 a kind of online、The intelligent substation analysis test method of off-line integral type,It is characterized in that,Use that SV real-time Communication for Power structure and message analysis logging modle realize specifically comprises the following steps that SV real-time Communication for Power structure mapping is to the physical layer of Ethernet and data link layer,The SV message that message analysis logging modle obtains is transmitted by the way of multicast transmission network,Then this SV message is carried out break-make analysis and message Continuity Analysis,Judge whether this SV message meets SV application protocol requirement,During analyzing,If judging, SV message does not meets SV application protocol requirement,Then this SV message is classified as error message,Identify its type of error,And shown,For error message,If erroneous effects subsequent treatment,After being then identified,Directly process next message,For correct message,This message is carried out applied analysis,Judge whether single message or application of electronic report process exist mistake.
A kind of online, intelligent substation analysis test method of off-line integral type the most as claimed in claim 2, it is characterised in that the mode of described multicast transmission network is divided into by switching equipment network and point-to-point directly-connected network:
(1) by under switching equipment network transmission mode, combining unit and device are all connected on the network switching equipment, and all information common networks transmit, and data flow is then determined by multicast address, vlan information and APPID information;
(2) under point-to-point directly-connected network transmission mode, each MU sampled value output interface is directly connected with the sampled value input interface of relevant apparatus by optical fiber;
When sampled value sends by the way of above-mentioned, all combining units and device are all connected with the network switching equipment, sampled value information is sent in the middle of network by the switching equipment being connected by combining unit, device then obtains sampled value information by switching equipment from network, and records sampled value integrity, sampled point interval stability and sampling transmission delay stability.
null4. as claimed in claim 1 a kind of online、The intelligent substation analysis test method of off-line integral type,It is characterized in that,Use that GOOSE real-time Communication for Power structure and message analysis logging modle realize specifically comprises the following steps that GOOSE real-time Communication for Power structure mapping is to the physical layer of Ethernet and data link layer,The GOOSE message that message analysis logging modle obtains is transmitted by the way of multicast transmission network,Then this GOOSE message is carried out break-make analysis and message Continuity Analysis,Judge whether this GOOSE message meets GOOSE application protocol requirement,During analyzing,If judging, GOOSE message does not meets GOOSE application protocol requirement,Then this GOOSE message is classified as error message,Identify its type of error,And shown,For error message,If erroneous effects subsequent treatment,After being then identified,Directly process next message,For correct message,This message is carried out applied analysis,Judge whether single message or application of electronic report process exist mistake.
A kind of online, intelligent substation analysis test method of off-line integral type the most as claimed in claim 4, it is characterised in that the mode of described multicast transmission network is divided into by switching equipment network and point-to-point directly-connected network:
(1) under the transmission mode by switching equipment network, each device is all connected on the network switching equipment, and all information common networks transmit, and data flow then controls block name information by multicast address, vlan information and GOOSE and determines;
(2) under the transmission mode of point-to-point directly-connected network, each apparatus GOOSE output interface is directly connected with the GOOSE interface of relevant apparatus by optical fiber;
When sampled value sends by the way of above-mentioned, all devices are all connected with the network switching equipment, and all devices then obtain sampled value information by switching equipment from network, and record transmission stability and signal intensity integrity.
A kind of online, intelligent substation analysis test method of off-line integral type the most as claimed in claim 1, it is characterised in that what employing MMS real-time Communication for Power structure and message analysis logging modle realized specifically comprises the following steps that
(1) client MMS connection request;
(2) service end MMS connection replys, accepts or refuses, if accepting, then continues;
(3) client MMS initialization requests;
(4) service end MMS initializes response acceptance, refusal or failure, if accepting, then continues;
(5) the application communication process of service based on MMS request/response and unresponsive service starts;
null(6) the MMS message starting to obtain device MMS communication end or backstage MMS communication end carries out networking layer analysis and communication process analysis,Judge whether this MMS message meets MMS application protocol requirement,First,MMS message is carried out Internet analysis,Judge that its information type is the most legal,And carry out topological analysis,Judge that MMS message TCP/IP address is the most legal、Port numbers is the most legal,Secondly,The communication process of MMS message is analyzed,Including break-make analysis and message Continuity Analysis,During analyzing,Still during communicating process analysis during either it being carried out Internet analysis,If judging, MMS message does not meets MMS application protocol requirement,Then this MMS message is classified as error message,Identify its type of error,And shown,For error message,If erroneous effects subsequent treatment,After being then identified,Directly process next message;For correct message, then this message is carried out applied analysis, it is judged that whether single message or application of electronic report process exist mistake.
null7. as claimed in claim 1 a kind of online、The intelligent substation analysis test method of off-line integral type,It is characterized in that,Use communications records information module、What communication synchronization sending module and synchronized transmission mixed-media network modules mixed-media realized off-line analysis method specifically comprises the following steps that communications records information module obtains information from communications records equipment or testing ground are by synchronized transmission equipment,These communication message contents and temporal information thereof are saved in the middle of specific region in a file format,Then from file, extract message content and temporal information,Carry out integrated treatment,Then it is sent to target communication network and equipment from the network interface specified by communication synchronization sending module,Synchronized transmission mixed-media network modules mixed-media is then in the case of objective network condition possesses,Communication synchronization sending module can be attached with objective network,Need first to determine when connecting in transmission information,The target of every kind of message and send port information accordingly,By each transmission port of communication synchronization sending module,The corresponding port of the network equipment corresponding with objective network and the equipment of operation couples together,Reappear network state at that time.
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