CN105406473B - Method and system is uniformly processed in a kind of distribution network failure based on software defined network - Google Patents
Method and system is uniformly processed in a kind of distribution network failure based on software defined network Download PDFInfo
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- CN105406473B CN105406473B CN201511005191.1A CN201511005191A CN105406473B CN 105406473 B CN105406473 B CN 105406473B CN 201511005191 A CN201511005191 A CN 201511005191A CN 105406473 B CN105406473 B CN 105406473B
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- distribution network
- controller
- openflow interchangers
- failure
- breaker
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- 238000000034 method Methods 0.000 title abstract description 14
- 230000009471 action Effects 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000010586 diagram Methods 0.000 claims description 7
- 230000009466 transformation Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
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- H02J13/0017—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Abstract
The invention discloses a kind of distribution network failure based on software defined network to be uniformly processed method and system, wherein the system is included after a certain website breaks down in power distribution network, part breaker is acted according to the information of flow table in openflow interchangers or the order of controller, and the technology of software defined network is used so that can quickly control corresponding breaker by software after a failure, reconstruct the topological structure of localized power distribution net, so that fault zone reduces, the service restoration time shortens.Wherein this method includes, report to the openflow interchangers for managing this substation first after a Ge Zi substations node failure, if having recovered the action message of the failure in the openflow interchangers, the interchanger is instructed to corresponding breaker sending action.If the failure does not find matched processing flow table in the openflow interchangers.
Description
Technical field
The invention belongs to intelligent distribution network field of communication technology, more particularly to a kind of power distribution network based on software defined network
Method and system is uniformly processed in failure.
Background technology
With the continuous increase of national grid distribution network construction scale, the proportion that China's power distribution network occupies in power grid is more next
It is bigger, and the distribution more than power distribution network is relatively broad, results in power distribution network and is easier the problem of breaking down compared with power transmission network.Due to
The network topology structure of power grid is complex, is difficult to position rapidly and accurately after failure generation, more and then is fault zone
Power recovery cause bigger difficulty.Therefore cause a trouble point have a great influence region electric power thus supplied and be difficult to fast
Speed is investigated and recovered to it.
Software defined network（SDN）It is that network is purchased into plane across year（Controller）With data forwarding plane
（Openflow interchangers）Separated, and realize a kind of new network framework of programmable control.The characteristics of SDN network, is such as
Under：1）Datum plane is absorbed in forwarding, and control plane has global view to Internet resources；2）Network operating system and business feature
Communication division between adaptation and hardware device is realized by setting protocol programming；3）Can be according to the different business need of upper-layer user
Ask, flexibly and efficiently allocation schedule underlying network resources.
Domestic software defines network and just starts to walk at present, using very few in terms of power communication.But many thoughts of SDN
It can be good at solving the deficiency in current power communication, therefore SDN technologies be incorporated into power communication and seem particularly necessary.
The content of the invention
It is difficult to be accurately positioned rapidly to solve failure in power distribution network, and reduces fault zone and reduce asking for break period
The thought of software defined network is incorporated into distribution network failure processing by topic, the present invention so that all kinds of failures can be unified fast
Speed is collected and is handled.Therefore proposing a kind of distribution network failure based on software defined network is uniformly processed method and system.
To achieve the above object, the present invention adopts the following technical scheme that, the power distribution network of the invention based on software defined network
Failure unified processing system, failure of its structural feature to occur in the formal layout power distribution network of software defined network；Respectively
What openflow interchangers and controller unified all kinds of failures in power distribution network collects and handles；And each breaker root
Acted accordingly according to received instruction.
As a preferred embodiment, controller of the present invention is located in power transformation main website, and the openflow exchanges seat in the plane
In becoming in electronic station.
As another preferred solution, the power distribution network where controller of the present invention is safeguarded in power transformation main website supply district
Network topological diagram, and with other controllers or openflow interchangers by wired mode to being connected.
As another preferred solution, openflow interchangers of the present invention are responsible for the controller report institute connected to it
Change electronic station state, and according to controller instruction renewal self maintained flow table item, and to its connect open circuit
Device issues action command.
As another preferred solution, breaker of the present invention is connected with the openflow interchangers in corresponding substation
Connect, and the state of itself is reported to its openflow interchanger connected, and issued according to the openflow interchangers
Instruction is acted accordingly.
Method is uniformly processed in distribution network failure of the invention based on software defined network, its structural feature is worked as to be sent out in power distribution network
After raw failure, openflow interchanger alerts that substation connect to it, the openflow contrasts self maintained
Flow table information, according to the instruction of flow table item if having matched flow table item, be sent to corresponding breaker and acted；If institute
Stating does not have matched flow table item in openflow interchangers, then reports to the controller of its connection, controller is according to self maintained
Distribution network topology calculate new route, and be issued to corresponding breaker and acted.
As a preferred embodiment, the present invention comprises the following steps.
Step S401：Each sub- substation actively reports shape status information and failure to believe to connected openflow interchangers
Breath；Performed if having the flow table item to match with failure produced by substation in the openflow interchangers being attached thereto.
Step S402：Corresponding breaker sending action information is given according to flow table item content.
Step S403：The interchanger is to the new road construction information of connected controller report after breaker actuation.
Step S404：The power distribution network topological structure of the controller renewal self maintained.
If no failure that produces therewith is to matched flow table item in the openflow interchangers being connected with the sub- substation
Then perform.
Step S405：The controller that the interchanger is extremely connected fault information reporting.
Step S406：The controller calculates new link according to the distribution network topological diagram of self maintained.
Step S407：The action command of respective circuit breakers is sent to the openflow interchangers being related to by controller.
Step S408：The interchanger sends control information to corresponding short-circuiting device and completes new link building process.
Step S409：The flow table of the openflow interchangers renewal self maintained after completion road construction, the controller is more
The new distribution network topology of itself.
Beneficial effect of the present invention.
The thought of software defined network is dissolved into the troubleshooting of power distribution network, utilizes product in openflow interchangers
The a large amount of flow table information got off are tired out and distribution network topological diagram that controller is safeguarded, to handle the failure letter that substation reports
Breath so that being difficult to the trouble point of fast positioning and recovery originally can be quickly found out, and trouble point is isolated so that failure
Try one's best the break period reduced so as to shorten system in region.
Brief description of the drawings
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of herein below.
Fig. 1 is a kind of structure chart of the distribution network failure unified processing system based on software defined network.
Fig. 2 is an abstract power distribution network part-structure exemplary plot.
Respective circuit breakers act situation exemplary plot after Fig. 3 breaks down for a certain substation.
Fig. 4 is the block diagram that method is uniformly processed in a kind of distribution network failure based on software defined network.
Embodiment
Fig. 1 is a kind of structure chart of the distribution network failure unified processing system based on software defined network, the figure shows
The position of each openflow interchangers and controller in power distribution network, and the connection mode before them, while also mark
The each breaker that can be controlled among each substation by software.The breaker and each power transformation website are just
The status information of operation is often actively sent during work to corresponding openflow interchangers or controller, so that upper layer device is to it
Carry out unified monitoring and management.Failure website crosses controller to its openflow interchanger connected immediately after breaking down
Warning information is sent, corresponding openflow interchangers respond rapidly according to itself flow table situation, while are reported to corresponding
Controller.After warning information is uploaded to controller, the controller is true rapidly according to the power distribution network topological structure of self maintained
Determine the position of trouble point, and the topological link of re-computation newly makes other region quickly resume power supplies with isolated fault point.The control
The action command of respective circuit breakers is reached down the breaker by device processed successively by openflow interchangers.Breaker is according to life
After order is acted, controller is reported to update existing topological structure or resend action to the breaker acted for success
Order.
If the flow table that this failure matches is already present in the openflow interchangers of failure website after breaking down
Xiang Shi is rapid to command respective circuit breakers to be acted.It is if corresponding after whole fault treating procedure is completed without occurrence
Openflow exchange opportunities update itself flow table item, can be acted rapidly after same fault occurs so as to next time.Therefore based on soft
The distribution network failure processing system that part defines network can be fast and accurately process part trouble point, make its influence scope
Further reduce to reduce the mean down time of power supply.
Fig. 2 is an abstract power distribution network part-structure exemplary plot, clearly to explain the present invention, chooses power distribution network herein
In a simple and typical networking structure and voltage class, be abstracted and analyzed.Wherein use regular hexagon
The Bulk Supply Substation of 220kv/20kv ranks is represented, the sub- substation of 20kv/0.4kv ranks is represented with square.Each circuit of outer shroud
For 220kv transmission lines of electricity, each circuit of inner ring is 20kv circuits, and having in Bulk Supply Substation and sub- substation junction being capable of software control
Breaker, while have between sub- substation and the connection of sub- substation and meet switch.Each switch can be carried out by software
Control, to promptly isolate trouble point after breaking down.
Respective circuit breakers act situation exemplary plot after Fig. 3 breaks down for a certain substation, when this regional distribution network is normal
During work, breaker D, F disconnect, E, G closure, therefore main website B is supply station for substation J, H, K and main website A is spare
Stand.On the left of the J of substation during line failure, substation H, J reporting fault situation, sending instruction by software after treatment makes
Breaker D closures are obtained, respective on-load switch is disconnected so as to which isolated fault circuit makes other regions normally supply between substation H, J
Electricity, substation H is powered by main website A at this time, and substation J, K are powered by main website B.
The openflow interchangers that substation H, J, K are connected to it after J breaks down when substation send alarm, while on
Report is handled and calculated to controller.Controller gives breaker D to send close command, between H, J, the load between J, K
Switch sends the instruction disconnected, then can isolate the substation J to break down without influencing other regions, substation H is supplied by main website A at this time
Electricity, substation K are powered by main website B.
When main website B breaks down, the controller positioned at main website can receive the alarm signal of main website B at once, pass through at the same time
The instruction for sending and disconnecting to each on-load switch positioned at main website B is handled, the instruction of closure is sent to breaker D.At this time substation H,
J, K powers by main website A.
When main website A, B break down, the controller positioned at main website can receive the alarm signal of main website A, B at once, together
When through processing give positioned at main website A, B each on-load switch send disconnect instruction, to breaker F send closure instruction.This
Shi Zizhan H, J, K power by main website C.
With this main website standby usage each other, calculated by the distribution network topological diagram of controller most close when an error occurs
The recovery link of reason and each switch motion order, trouble point is accurately positioned and quickly isolates to reach.Each control process is led at the same time
The mode of software is crossed to realize, reaches long-range, quick, accurate so that the mean down time of power supply has declined.
Fig. 4 is the block diagram that method is uniformly processed in a kind of distribution network failure based on software defined network, when each power transformation website
During normal operation, each website can periodically upload self-operating state, so that unified managing and control system is monitored and safeguards.Work as distribution
After certain is broken down in net, the adjacent website in trouble point or affected region are exchanged to connected openflow
Machine or controller send warning information such as step S401,；After the openflow interchangers receive warning message, first with from
The flow table that body is safeguarded matches, if finding to have and break down the flow table item to match, according to the content of flow table item to specified
Breaker or meet switch sending action information such as step S402, while the openflow exchange opportunities in time to its connect
Controller report action message such as step, controller, which receives, updates the power distribution network topological structure of self maintained such as after action message
Step S404.
If there is no and breaking down the flow table item to match in the openflow interchangers, the control of its connection is reported
Device, after the controller receives the information reported, new link is calculated according to the network topology structure of self maintained, enabling
It is effectively isolated fault zone such as step S406.And the action command of each breaker and on-load switch is handed down in time each corresponding
Openflow interchangers such as step S407, action command is issued to the switch by each interchanger again afterwards.When whole
After the completion of a troubleshooting is long, the distribution network topological structure of the controller renewal self maintained.It is corresponding at the same time
Openflow interchangers update itself flow table, and failure can be handled rapidly when identical failure occurs again.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
The described technical solution of inventive embodiments, it will be understood by those of ordinary skill in the art that, still the present invention can be carried out
Modification or equivalent substitution, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (1)
1. the distribution network failure unified processing system based on software defined network, it is characterised in that in the form of software defined network
The failure occurred in processing power distribution network；What each openflow interchangers and controller unified all kinds of failures in power distribution network
Collect and handle；And each breaker is acted accordingly according to received instruction；
The controller is located in power transformation main website, and the openflow interchangers are in change electronic station；
Distribution network topological diagram where the controller is safeguarded in power transformation main website supply district, and with other controllers or
Openflow interchangers are connected by wired mode；
The openflow interchangers are responsible for the state to the change electronic station where the controller report of its connection, and according to control
The flow table item of the instruction renewal self maintained of device, and issue action command to its breaker connected；
The breaker is connected with the openflow interchangers in phase electrostrictive strain substation, and the openflow connected to it is exchanged
Machine reports the state of itself, and is acted accordingly according to the instruction that the openflow interchangers issue；
After breaking down in power distribution network, openflow interchanger alerts that substation connects to it are described
Openflow interchangers contrast the flow table information of self maintained, according to the instruction of flow table item if having matched flow table item, send
Acted to corresponding breaker；If there is no matched flow table item in the openflow interchangers, its connection is reported to
Controller, controller calculates new route according to the distribution network topology of self maintained, and is issued to corresponding breaker
Acted.
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| CN201511005191.1A CN105406473B (en) | 2015-12-29 | 2015-12-29 | Method and system is uniformly processed in a kind of distribution network failure based on software defined network |
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| CN201511005191.1A CN105406473B (en) | 2015-12-29 | 2015-12-29 | Method and system is uniformly processed in a kind of distribution network failure based on software defined network |
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| CN105406473B true CN105406473B (en) | 2018-04-20 |
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| CN107528715A (en) * | 2016-06-22 | 2017-12-29 | 中兴通讯股份有限公司 | The determination method and apparatus of fault type |
| CN112003719B (en) * | 2020-07-08 | 2022-11-11 | 国网浙江省电力有限公司宁波供电公司 | SDN method for smart grid remote protection suitable for post-disaster recovery |
| CN112290672B (en) * | 2020-09-10 | 2022-11-04 | 国电南瑞科技股份有限公司 | Power distribution network control system and method based on node coding mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103428031A (en) * | 2013-08-05 | 2013-12-04 | 浙江大学 | Inter-domain link fast failure recovery method based on software defined network |
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| JP5441786B2 (en) * | 2010-03-29 | 2014-03-12 | 三菱電機株式会社 | Control device for power system stabilizer |
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| CN103428031A (en) * | 2013-08-05 | 2013-12-04 | 浙江大学 | Inter-domain link fast failure recovery method based on software defined network |
Non-Patent Citations (1)
| Title |
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| 变电设备在线监测系统功能与性能测试的研究;李烁;《中国优秀硕士学位论文全文数据库工程科技II辑》;20150503;第1-45页 * |
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