CN107528729A - Heartbeat message mechanism modeling method based on the communication of OPNET transformer station process layer - Google Patents
Heartbeat message mechanism modeling method based on the communication of OPNET transformer station process layer Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
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Abstract
The present invention is a kind of heartbeat message mechanism modeling method based on the communication of OPNET transformer station process layer.It is modeled by process domain, nodes domains, network domains, in process domain, work out heartbeat judge module, mutually redirected between message sending module, in normal state, message module produces message, and into heartbeat judge module, next frame message output time is back to message sending module by heartbeat judge module;In nodes domains, heartbeat operational outfit and normal operation equipment are divided into according to equipment running status equipment, both follow identical message and sent judges with heartbeat;In network domains, heartbeat operational outfit is interconnected to constitute transformer station process layer network with normal operation equipment, and according to the different running status of distinct device, forms the network scenarios such as normal operating condition, accident running status, snowslide running status.The present invention can effectively simulate intelligent substation GOOSE message and send rule, and effective analysis method is provided for the analysis of transformer station process layer network.
Description
Technical field
The present invention is a kind of heartbeat message mechanism modeling method based on the communication of OPNET transformer station process layer, is belonged to
The innovative technology of heartbeat message mechanism modeling method based on the communication of OPNET transformer station process layer.
Background technology
With power industry and the development of communication network technology, intelligent substation gradually finds application and is widely popularized.Intelligence
Substation process-level replaces traditional direct-connected mode of cable using optical fiber exchange network, and process-level network operation follows IEC
61850 international standards, to ensure the reliability of message transmissions, standard proposes the transformer station to intelligent substation towards general object
The transmission of event GOOSE message sends mechanism, i.e., when not having GOOSE events, the transmission interval of GOOSE message using heartbeat
It is relatively long, carry out in regular intervals, but in the event of generation, data are changed, transmission time interval
It will be arranged to minimum, in this stage, transmission time interval can gradually increase, until state-event stabilization, the hair of GOOSE message
Send and be changed into fixing long interval of time.On the other hand, simulation analysis are carried out to COMMUNICATION NETWORK PERFORMANCES as dividing using emulation mode
The important means of intelligent substation communication networking is analysed, wherein OPNET emulation platforms can accurately emulate the communication row of complex network
For, while interfacial effect is good, device model storehouse is enriched, and obtains accreditation in the industry, however, at present, OPNET softwares can not simultaneously have
Effect supports heartbeat message to send mechanism, and its data packet sending method is only capable of supporting various common probability distribution function generators to determine
Data hardwood delivery time, therefore, it is necessary to heartbeat message mechanism emulation mode can be applied to based on OPNET Platform Developments,
Simulation analysis are carried out to heterogeneous networks running status.
Still provide the specifically heartbeat message based on OPNET emulation platforms without research at this stage and send mechanism modeling side
Method.Emulation for heartbeat mechanism, professional some use control node using 5ms as periodic broadcasting position of the switch GOOSE report
Text, protection node control GOOSE message by periodic broadcasting of 1 ms；Some are divided to two sections to be emulated, and measuring and controlling equipment is disconnected to intelligence
Road device sends first GOOSE message, second, third duplicate message is sent after being respectively separated 2ms, when re-establishing 1s afterwards
Between be spaced, emulated.Substation communication network operation is more also divided into small mode and big mode, and it is real by OPNET
Existing 1s stable state network simulation and 1ms interval burst message emulating.These methods have the drawback that：Using proper network
Running status analogue simulation heartbeat mechanism, simulation result can not accurately reflect the network performance under transformer substation case occurs, and adopt
It is then relatively conservative with small mode simulation run mode；Segmentation emulation mode can not show continuous network simulation result..
The content of the invention
There is provided a kind of based on the communication of OPNET transformer station process layer it is an object of the invention to consider above mentioned problem
Heartbeat message mechanism modeling method.The present invention can effectively simulate intelligent substation GOOSE message and send rule, be intelligent power transformation
Process-level network of standing analysis provides effective analysis method.
The technical scheme is that：Heartbeat message mechanism of the present invention based on the communication of OPNET transformer station process layer
Modeling method, modeled respectively by three process domain, nodes domains, network domains levels, in process domain, establishment heartbeat judges
Module, mutually redirected between message sending module, in normal state, message module produces message, judges mould into heartbeat
Next frame message output time is back to message sending module by block, heartbeat judge module, and message sending module judges with heartbeat
Module, which connects each other, forms heartbeat device model;In nodes domains, heartbeat operational outfit is divided into according to equipment running status equipment
And normal operation equipment, both, which follow identical message and sent, judges have heartbeat basis for estimation to form difference with heartbeat;In net
In network domain, heartbeat operational outfit is interconnected to constitute transformer station process layer network with normal operation equipment, and according to difference
The different running status of equipment, form the network scenarios such as normal operating condition, accident running status, snowslide running status.
The present invention sends rule by analyzing message under heartbeat message transmission mechanism, builds heartbeat operational outfit, and to the heart
Jump configuration relation of the operational outfit under heterogeneous networks running status to be combed, it is proposed that heterogeneous networks running status emulation side
Method.The present invention can effectively simulate intelligent substation GOOSE message and send rule, be carried for the analysis of transformer station process layer network
For effective analysis method.The present invention is a kind of convenient and practical heartbeat report based on the communication of OPNET transformer station process layer
Literary mechanism modeling method.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention；
The heartbeat that Fig. 2 is the present invention judges redirect procedure figure；
Fig. 3 is smart machine OPNET nodal analysis method schematic diagrames of the present invention；
Fig. 4 is that inventive network running status distinguishes schematic diagram.
Embodiment
Embodiment：
The heartbeat message mechanism modeling method based on the communication of OPNET transformer station process layer of the present invention, pass through process domain, section
Point three domain, network domains levels are modeled respectively, in process domain, work out heartbeat judge module, message sending module it
Between mutually redirect, in normal state, message module produce message, into heartbeat judge module, heartbeat judge module will be next
Frame message output time is back to message sending module, and message sending module connects composition heartbeat each other with heartbeat judge module and set
Standby model;In nodes domains, heartbeat operational outfit and normal operation equipment, Liang Zhezun are divided into according to equipment running status equipment
Follow identical message and send and judge there is heartbeat basis for estimation to form difference with heartbeat;In network domains, heartbeat operational outfit with just
Normal operational outfit is interconnected to constitute transformer station process layer network, and according to the different running status of distinct device, is formed
The network scenarios such as normal operating condition, accident running status, snowslide running status.
The heartbeat message mechanism modeling method based on the communication of OPNET transformer station process layer of the present invention, specific implementation
Step is as follows：
1）Heartbeat process file is worked out；
2）Heartbeat device model is built；
3）Network scenarios is built.
In the present embodiment, above-mentioned steps 1）Heartbeat process file preparation method is as follows：
In message sends process file, heart beat status judgement and jump module are added, it is new to generate a frame in message generation module
Message after, redirect into heartbeat judge module, heartbeat module output next frame message sends the time, and returned packet sends mould
Block, specifically include following process；
11）Parameter setting is carried out first, main to include heartbeat initial time, minimum heartbeat message time, during maximum heartbeat message
Between and heart time expand multiple；In process field mark heartbeat initial time, establish Begin_time parameters and represent emulation mould
The heartbeat initial time of plan, establish Heart_time_max parameters and represent the maximum eartbeat interval time, establish Heart_time_
Min parameters represent the most careful jump space time, and initial heart time Heart_time is set to the minimum eartbeat interval time, passed through
op_sim_time（）Function obtains current simulation time and judges whether need to enter heartbeat message transmission with Begin_time
State, such as need not, heart beat flag Heart is set to 0, and message is normally sent, the message of the setting that gets parms send interval with it is current
Simulation time is added sends the time as next frame message：Pass through op_sim_time（）Function obtains current simulation time, parameter
Set transmission message interval to be added in intarrvl_time_dist_handle handles, and oms_dist_ can be passed through
positive_outcome_with_error_msg（）Function is obtained, and state, the heart are sent as that need to redirect into heartbeat message
Jump mark Heart and put 1, judge into next stage；
12）Such as enter heartbeat message and send state, then when first determining whether heart time Heart_time exceedes maximum heartbeat
Between Heart_time_max, if it exceeds the maximum heartbeat message time, then again by oms_dist_positive_
outcome_with_error_msg（）Function get parms setting message send interval with the heartbeat initial time time
Begin_time is added sends the time as next frame message, and it is minimum heart time to recover heart time Heart_time
Heart_time_min, and be clearing by heart beat flag Heart；
13）As heart time Heart_time is less than maximum heart time Heart_time_max, illustrate that equipment is still operated in the heart
Message transmission phase is jumped, then obtains heartbeat time interval Heart_time this moment and is added with current simulation time and be used as next frame report
Text sends the time, and the current heartbeat time is expanded, and it is that set heartbeat message expands multiple, under normal circumstances, root to expand multiple
According to IEC61850 standards, it is 2 that heartbeat, which expands multiple, until heart time exceeds maximum heart time, into step 12）；
In the present embodiment, above-mentioned steps 2）Heartbeat device model building method is as follows：
The difference for rule of giving out a contract for a project according to smart machine during heartbeat, heartbeat device model is built, as illustrated, heartbeat equipment is mainly wrapped
Include with lower module, data frame generation module, Queue module, statistical module, and sending/receiving module；Because smart machine is one
In the case of subsystem failure, processing bag principle is basically unchanged with processing bag principle under normal circumstances, therefore, keeps smart machine
Queue module, statistical module, sending/receiving module is constant, is modified mainly for data frame generation module, load step 1）
Heartbeat process file.
In the present embodiment, above-mentioned steps 3）Network scenarios building method is as follows：
31）Network operation state is distinguished
Intelligent substation is different due to the running status of equipment, in fact it could happen that different network operation states, for transformer station's net
The analysis of network performance needs to consider the possible running status feature of distinct device, can be by network according to the operation characteristic of equipment
Simulating scenes are divided into, normal operating condition, event running status and snowslide running status, normal operating condition, event operation
State and snowslide running status are described as follows：
Under normal circumstances, the communication conditions of intelligent substation, in the feelings for not having any transformer substation case or substation accident
Under condition, all devices send message information according to certain rule, such as with the combining unit of 80 points/cycle, are sent out every 0.00025s
A frame SV data messages are sent, the node such as protection and intelligent terminal sends status information, information flow with 1s or 5s time interval
Stable state is maintained, the flow and transmission delay of network are basically unchanged, normal operating condition reflection intelligent substation communication group
Net basic network behavior pattern；
Event running status describes electrical secondary system under normal circumstances, the network traffic conditions that equipment is under accident running status,
Monospace event running status represents that a certain interval is in time running status, can show as a certain line fault, protection dress
Put transmission heartbeat message, intelligent terminal reversion switch state heartbeat message, or control device reception superior instructions and perform control
Situations such as making instruction, sending heartbeat message is all subordinated to monospace event running status；Multi-compartment event running status represents more
Individual interval is in event running status simultaneously, reflects intelligent substation communication networking extreme case lower network behavior pattern；
Snowslide running status is described under electrical secondary system abnormal conditions, the network equipment largely sent to communication network it is various effectively/
Invalid packet, it is corresponding with single node snowslide running status and multinode snowslide running status；Under monospace snowslide running status,
Spacing devices snowslide is run, under multi-compartment snowslide running status, multi-compartment equipment snowslide operation；
32）Heterogeneous networks running status device model configures to be chosen with parameter, and detailed process is as follows：
321）Under proper network running status
Equipment Begin_time is arranged to infinitely great so that for equipment in simulation time, heartbeat position is always 0, and message is according to setting
The message put, which sends interval, to carry out data transmission；
322）Under accident network running status；
The equipment for selecting the operation of entry event state, sets heartbeat initial time, and other operational outfits are made normal operation, emulated
After time reaches set Begin_time, selected device enters heartbeat running status, and message is according to heartbeat message transmitter
System carries out data frame transmission；
323）Under snowslide network running mode
The equipment into avalanche condition operation to be selected, heartbeat initial time is set, other operational outfits make normal operation, in addition,
Set up minimum heart time and send the time for snowslide message, it is 1, thus, snowslide operational outfit to set heart time to expand multiple
It will repeat to enter heartbeat running status.
The present invention is primarily based on OPNET emulation platform buildings and can adapt to send in the heartbeat of intelligent substation GOOSE message
The heartbeat operational outfit of rule, and provided for this and simulate various intelligent substation network operation states using heartbeat operational outfit
Emulation mode.
Claims (5)
1. a kind of heartbeat message mechanism modeling method based on the communication of OPNET transformer station process layer, it is characterised in that pass through
Three process domain, nodes domains, network domains levels are modeled respectively, in process domain, are worked out heartbeat judge module, are sent out in message
Send and mutually redirect between module, in normal state, message module produces message, and into heartbeat judge module, heartbeat judges mould
Next frame message output time is back to message sending module by block, and message sending module connects structure each other with heartbeat judge module
Into heartbeat device model;In nodes domains, heartbeat operational outfit is divided into according to equipment running status equipment and normal operation is set
Standby, both, which follow identical message and sent, judges have heartbeat basis for estimation to form difference with heartbeat;In network domains, heartbeat fortune
Row equipment is interconnected to constitute transformer station process layer network with normal operation equipment, and according to the different operation of distinct device
State, form the network scenarios such as normal operating condition, accident running status, snowslide running status.
2. the heartbeat message mechanism modeling method according to claim 1 based on the communication of OPNET transformer station process layer,
It is characterized in that specific implementation step is as follows：
1）Heartbeat process file is worked out；
2）Heartbeat device model is built；
3）Network scenarios is built.
3. the heartbeat message mechanism modeling method according to claim 2 based on the communication of OPNET transformer station process layer,
It is characterized in that above-mentioned steps 1）Heartbeat process file preparation method is as follows：
In message sends process file, heart beat status judgement and jump module are added, it is new to generate a frame in message generation module
Message after, redirect into heartbeat judge module, heartbeat module output next frame message sends the time, and returned packet sends mould
Block, specifically include following process；
11）Parameter setting is carried out first, main to include heartbeat initial time, minimum heartbeat message time, during maximum heartbeat message
Between and heart time expand multiple；In process field mark heartbeat initial time, establish Begin_time parameters and represent emulation mould
The heartbeat initial time of plan, establish Heart_time_max parameters and represent the maximum eartbeat interval time, establish Heart_time_
Min parameters represent the most careful jump space time, and initial heart time Heart_time is set to the minimum eartbeat interval time, passed through
op_sim_time（）Function obtains current simulation time and judges whether need to enter heartbeat message transmission with Begin_time
State, such as need not, heart beat flag Heart is set to 0, and message is normally sent, the message of the setting that gets parms send interval with it is current
Simulation time is added sends the time as next frame message：Pass through op_sim_time（）Function obtains current simulation time, parameter
Set transmission message interval to be added in intarrvl_time_dist_handle handles, and oms_dist_ can be passed through
positive_outcome_with_error_msg（）Function is obtained, and state, the heart are sent as that need to redirect into heartbeat message
Jump mark Heart and put 1, judge into next stage；
12）Such as enter heartbeat message and send state, then when first determining whether heart time Heart_time exceedes maximum heartbeat
Between Heart_time_max, if it exceeds the maximum heartbeat message time, then again by oms_dist_positive_
outcome_with_error_msg（）Function get parms setting message send interval with the heartbeat initial time time
Begin_time is added sends the time as next frame message, and it is minimum heart time to recover heart time Heart_time
Heart_time_min, and be clearing by heart beat flag Heart；
13）As heart time Heart_time is less than maximum heart time Heart_time_max, illustrate that equipment is still operated in the heart
Message transmission phase is jumped, then obtains heartbeat time interval Heart_time this moment and is added with current simulation time and be used as next frame report
Text sends the time, and the current heartbeat time is expanded, and it is that set heartbeat message expands multiple, under normal circumstances, root to expand multiple
According to IEC61850 standards, it is 2 that heartbeat, which expands multiple, until heart time exceeds maximum heart time, into step 12）.
4. the heartbeat message mechanism modeling method according to claim 2 based on the communication of OPNET transformer station process layer,
It is characterized in that step 2）Heartbeat device model building method is as follows：
The difference for rule of giving out a contract for a project according to smart machine during heartbeat, heartbeat device model is built, as illustrated, heartbeat equipment is mainly wrapped
Include with lower module, data frame generation module, Queue module, statistical module, and sending/receiving module；Because smart machine is one
In the case of subsystem failure, processing bag principle is basically unchanged with processing bag principle under normal circumstances, therefore, keeps smart machine
Queue module, statistical module, sending/receiving module is constant, is modified mainly for data frame generation module, load step 1）
Heartbeat process file.
5. the heartbeat message mechanism modeling method according to claim 2 based on the communication of OPNET transformer station process layer,
It is characterized in that step 3）Network scenarios building method is as follows：
31）Network operation state is distinguished
Intelligent substation is different due to the running status of equipment, in fact it could happen that different network operation states, for transformer station's net
The analysis of network performance needs to consider the possible running status feature of distinct device, can be by network according to the operation characteristic of equipment
Simulating scenes are divided into, normal operating condition, event running status and snowslide running status, normal operating condition, event operation
State and snowslide running status are described as follows：
Under normal circumstances, the communication conditions of intelligent substation, in the feelings for not having any transformer substation case or substation accident
Under condition, all devices send message information according to certain rule, such as with the combining unit of 80 points/cycle, are sent out every 0.00025s
A frame SV data messages are sent, the node such as protection and intelligent terminal sends status information, information flow with 1s or 5s time interval
Stable state is maintained, the flow and transmission delay of network are basically unchanged, normal operating condition reflection intelligent substation communication group
Net basic network behavior pattern；
Event running status describes electrical secondary system under normal circumstances, the network traffic conditions that equipment is under accident running status,
Monospace event running status represents that a certain interval is in time running status, can show as a certain line fault, protection dress
Put transmission heartbeat message, intelligent terminal reversion switch state heartbeat message, or control device reception superior instructions and perform control
Situations such as making instruction, sending heartbeat message is all subordinated to monospace event running status；Multi-compartment event running status represents more
Individual interval is in event running status simultaneously, reflects intelligent substation communication networking extreme case lower network behavior pattern；
Snowslide running status is described under electrical secondary system abnormal conditions, the network equipment largely sent to communication network it is various effectively/
Invalid packet, it is corresponding with single node snowslide running status and multinode snowslide running status；Under monospace snowslide running status,
Spacing devices snowslide is run, under multi-compartment snowslide running status, multi-compartment equipment snowslide operation；
32）Heterogeneous networks running status device model configures to be chosen with parameter, and detailed process is as follows：
321）Under proper network running status
Equipment Begin_time is arranged to infinitely great so that for equipment in simulation time, heartbeat position is always 0, and message is according to setting
The message put, which sends interval, to carry out data transmission；
322）Under accident network running status
The equipment for selecting the operation of entry event state, sets heartbeat initial time, and other operational outfits are made normal operation, emulated
After time reaches set Begin_time, selected device enters heartbeat running status, and message is according to heartbeat message transmitter
System carries out data frame transmission；
323）Under snowslide network running mode
The equipment into avalanche condition operation to be selected, heartbeat initial time is set, other operational outfits make normal operation, in addition,
Set up minimum heart time and send the time for snowslide message, it is 1, thus, snowslide operational outfit to set heart time to expand multiple
It will repeat to enter heartbeat running status.
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Citations (3)
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| CN104243293A (en) * | 2014-08-21 | 2014-12-24 | 深圳市合信自动化技术有限公司 | Automatic heartbeat interval adjustment method, gateway device and server |
| US20160156481A1 (en) * | 2014-04-09 | 2016-06-02 | State Grid Corporation Of China (Sgcc) | Automatic interlocking logic detection method based on goose communication mechanism |
| CN106685748A (en) * | 2015-11-05 | 2017-05-17 | 中移（杭州）信息技术有限公司 | Heartbeat information sending methods, server and terminal |
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2017
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| US20160156481A1 (en) * | 2014-04-09 | 2016-06-02 | State Grid Corporation Of China (Sgcc) | Automatic interlocking logic detection method based on goose communication mechanism |
| CN104243293A (en) * | 2014-08-21 | 2014-12-24 | 深圳市合信自动化技术有限公司 | Automatic heartbeat interval adjustment method, gateway device and server |
| CN106685748A (en) * | 2015-11-05 | 2017-05-17 | 中移（杭州）信息技术有限公司 | Heartbeat information sending methods, server and terminal |
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