CN106899001A - A kind of intelligent substation secondary N in-one devices - Google Patents
A kind of intelligent substation secondary N in-one devices Download PDFInfo
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- CN106899001A CN106899001A CN201710081966.6A CN201710081966A CN106899001A CN 106899001 A CN106899001 A CN 106899001A CN 201710081966 A CN201710081966 A CN 201710081966A CN 106899001 A CN106899001 A CN 106899001A
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- devices
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- computing unit
- information
- universal computing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
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- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Evolutionary Computation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of intelligent substation secondary N in-one devices; there is abnormal module in the secondary N in-one devices protected are performed; then call standby universal computing unit of the mirror image to other in normal secondary N in-one devices comprising more relevant information to perform overriding protection algorism, complete the defencive function to electrical equipment.The risk that protection equipment inner member single point failure brings is avoided, the reliability of intelligent substation equipment station domain protection is improve.
Description
Technical field
The present invention relates to a kind of intelligent substation secondary N in-one devices, belong to intelligent substation station domain protection field.
Background technology
First and second equipment integration is the important directions of intelligent grid future development, will be provided with sensing measurement, logic fortune
Calculate, the secondary intelligent cell of communication collaboration capabilities is encapsulated in electric power primary equipment, equipment room is using optical fiber as information exchange branch
Support, so as to build the interactive protection control system of transformer station of networking, self-organizing.According to modularized design principle, first and second
Equipment integration will simplify the process of construction of tradition transformer station secondary system, significantly reduce the assembling being likely to occur in work progress
Mistake.Relative to the design that traditional transforming plant primary equipment, secondary device are separate, transformer station's total solution of the program
With the advantage for hardly matching.
Existing ripe centralized or distributed station domain and wide area protection scheme, have that some are difficult in adapt to.
Protected for centralization, due to its unicity, once certain protection equipment breaks down, will cause that protection scheme is unreliable in itself,
And the structure of the centralization objective integrated with first and second equipment is disagreed.For distributed protection, domain protection of standing rarely has should
With, but there is more ripe application in wide area protection field.Though distributed unit have followed the integration of first and second equipment
Objective, but directly merged with primary equipment as distributed unit using single secondary device, it is placed under outdoor operating mode, now
Still disturbed for intense electromagnetic and disliked without the intelligent secondary device device that can be well matched with the primary equipment life-span on the market
The adaptability of bad running environment is not also by the inspection at scene.Therefore, by primary equipment and secondary device within the short time
It is integrated in the also once-existing feasibility for being difficult to overcome and integrity problem in same equipment.
If by be integrated in primary equipment it is secondary be partially stripped out, configured on the spot according to geographical position, be integrated into
In the relatively good outdoor rack of environmental condition, it is respectively installed near main primary equipment.In this case can improve because
Intense electromagnetic is disturbed, but with the rising of voltage class, electromagnetic interference is gradually increased, and the reliability of equipment can not still be protected
Card.
Also, the integration of first and second equipment also brings other problemses, and protection system is adopted under severe outdoor operating mode
The links such as sample, logic judgment, information transfer are all likely to occur failure.
The content of the invention
It is an object of the invention to provide a kind of intelligent substation secondary N in-one devices, for solving device interior element
Single point failure, and the not enough problem of protection reliability in existing station.
To achieve the above object, the solution of the present invention includes：A kind of intelligent substation secondary N in-one devices, including：Information
Acquisition module, universal computing unit, information exchange module, memory module and performing module；Information acquisition module is used for real-time
Gather the service data of the primary equipment of two or more electrical separation；Universal computing unit is used for the fortune according to information acquisition module
Row data, carry out Fault Identification, generate action command；It is dynamic that performing module carries out protection to primary equipment according to the action command
Make；Information exchange module be used for station communication network connection, carry out information exchange with other secondary N in-one devices；Storage
Module is used for storage protection program and protection point information, and the corresponding electrical separation of the secondary N in-one devices of surrounding is once
Facility information；
When performing defencive function, if universal computing unit fails, according to the secondary N in-one devices corresponding of surrounding
Secondary device information, selects secondary N in-one devices around most with current execution defencive function relevant information, overrides around described
The universal computing unit of secondary N in-one devices, and receive the universal computing unit generation of secondary N in-one devices around described
Action command.
The memory module is also stored with the routing iinformation of the station communication network, and secondary N unifications set around described
When having two or more, prioritizing selection route nearest secondary N in-one devices.
The universal computing unit includes more than one common calculation module, when a common calculation module fails,
The common calculation module not failed in prioritizing selection universal computing unit.
A kind of intelligent substation secondary N in-one devices that the present invention is provided, the universal computing unit in secondary N in-one devices
Failure, suitable secondary N in-one devices around selection, the universal computing unit of secondary N in-one devices, performs appearance around overriding
The protection work function of the secondary N in-one devices of problem, the dual for realizing hardware and software aspect in the case of limited resources is superfluous
It is remaining, effectively evaded the risk that inner member single point failure brings, cope with protection system severe open air operating mode down-sampling,
The failure that the links such as logic judgment, information transfer are likely to occur, improves the reliability of intelligent substation equipment protection.
Brief description of the drawings
Fig. 1 is secondary N in-one devices internal module figure；
Fig. 2 is the secondary N in-one devices topological diagram of the embodiment of the present invention；
Fig. 3 is the communication network of secondary N in-one devices in the present embodiment.
Specific embodiment
In intelligent grid, single secondary N in-one devices of the present invention, the multiple electrical separations of management are same electric
Primary equipment in interval can also be managed by multiple secondary N in-one devices.
A kind of secondary N in-one devices of present invention design, the equipment includes：Information acquisition module, universal computing unit, information
Interactive module, memory module and performing module；Information acquisition module is used for Real-time Collection two or more electrical separation once
The service data of equipment；Universal computing unit is used for the service data according to information acquisition module, carries out Fault Identification, and generation is dynamic
Order；Performing module carries out protection act according to the action command to primary equipment；Information exchange module is used for interior with station
Communication network is connected, and information exchange is carried out with other secondary N in-one devices；Memory module is used for storage protection program and protection
Point information, and the corresponding electrical separation of other secondary N in-one devices of surrounding primary equipment information.
The technical scheme is that：When performing defencive function, if the universal computing unit failure of secondary N in-one devices,
Then according to the corresponding primary equipment information of other secondary N in-one devices around described, selection is to current to perform defencive function related
Secondary N in-one devices around information is most, override the universal computing unit of secondary N in-one devices around described, using selection
Secondary N in-one devices in the universal computing unit that overrides carry out treatment and the Fault Identification of facility information, produce action command,
The secondary N in-one devices of universal computing unit failure receive the universal computing unit generation of secondary N in-one devices around described
Action command, the normal protection of primary equipment is realized using itself normal other elements.The present invention is realized in secondary N unifications
When universal computing unit goes wrong in equipment, available other secondary N in-one devices are called to carry out function overriding immediately, so that
The defencive function to primary equipment is not influenceed, improves the reliability of electric network protection.
The present invention will be further described below in conjunction with the accompanying drawings：
Secondary N in-one devices of the present invention are built upon power system primary equipment, secondary device integration conception
On the basis of, gather the function of various secondary devices, near distribution to primary equipment.On the one hand secondary N in-one devices collect one
The on-off model such as the electrical quantity such as voltage, the electric current of secondary side and breaker, disconnecting switch nodes of locations, using its own processor
The quick defencive function at its corresponding interval is realized in the form of directly adopting straight jump；On the other hand for the protection in station across interval is provided
The integrated information of this side, multiple secondary N in-one devices are adopted in the form of net is jumped by quick protection communication network structure in station with net
Into the protection across interval, such as transformer differential protection, bus differential protecting etc..
As shown in figure 1, it is the structure of secondary N in-one devices, the primary equipment of N in-one devices includes but is not limited to power transformation
The primary equipments such as bus, circuit, transformer in standing.Two second part of emphasis N in-one devices of the invention, it is illustrated that secondary N is closed
One equipment includes information acquisition module, information exchange module, universal computing unit module and storage module.Certainly, secondary N unifications
Equipment includes but is not limited to above-mentioned module.The secondary N in-one devices have multiple universal computing units, standby each other.Secondary N unifications
Cluster tool communication module, designs with hardware from redundancy and memory image.
By information acquisition module, the service data of secondary N in-one devices energy Real-time Collection power network, mainly including electric current,
Information of voltage and circuit-breaker status information.Meanwhile, it is pre- that the data to collecting carry out the protection module based on GPF (General Protection False principle
Treatment, then by certain format organization's data, there is provided to the universal computing unit of secondary N in-one devices.
By information exchange module, secondary N in-one devices are shared the fault message in region by communication network, are obtained
Take failure decision-making order and realize failure removal.Secondary N in-one devices need to possess the message capacity of nargin high, high traffic rate
With powerful information processing capability, handle up with the classification treatment of inside and outside magnanimity information of supporting to stand and in real time, and then fast and reliable
Respond the request and cooperation of other equipment.
By universal computing unit, secondary N in-one devices read electricity required in Ethernet according to program maps relation
Gas information, Fault Identification function.Secondary N in-one devices are based on the fault message that communication network is obtained in protection zone, with reference to comprehensive
Closing decision discernment algorithm carries out system failure identification.When recognition result is uncertain, start the negotiation of a new round, and using fault-tolerant
Measure recognizes fault element.
By storage module, storage two classes protection point information：Storage protection program and protection point information, and surrounding
The primary equipment information of the corresponding electrical separation of other secondary N in-one devices.
The single secondary multiple electrical separations of N in-one devices management, the equipment in same electrical separation is unified by multiple secondary N
Equipment control, multiple secondary N in-one devices are connected by station communication net, and high-speed communication is realized between secondary N in-one devices.
There is secondary N in-one devices description to understand that single secondary N in-one devices generally comprise several universal computing units.
When secondary N in-one devices realize its whole relay protective scheme algorithm, it is only necessary to use part universal computing unit, remaining is general
Computing unit can be used as standby.
Based on secondary N in-one devices, transformer station is considered as by several regions, individual equipment manages some intervals concentratedly
Design reduces the sum of secondary device.Protect control function directly will realize in the secondary N in-one devices of distributed installing,
The protection system based on secondary N in-one devices is formed in transformer station.The installing of device distribution formula improves the reliability of protection, cancels
Transformer station's master control room, reduces transformer station's floor space.General transformer station is all bus section operation, and single secondary N unifications
Equipment centralized management geographical position close two to four interval, multiple secondary N in-one devices cooperate composition bus protection jointly.
As shown in Fig. 2 being based on a kind of typical substation topology structure of the invention, secondary N in-one devices 1 are in charge of transformation
Device low-pressure side, secondary N in-one devices 2 are in charge of high-voltage side outlet wire L1 and L2, and secondary N in-one devices 3 are in charge of outlet L3 and L4, equipment
1st, 2 and 3 the protection of bus 1 has been collectively constituted；
Similarly, secondary N in-one devices 11 are in charge of step down side, secondary N in-one devices 5 be in charge of high-voltage side outlet wire L5 and
L6, secondary N in-one devices 6 are in charge of high-voltage side outlet wire L7, L8 and L9, and equipment 11,5 and 6 has collectively constituted the protection of bus 2；
Secondary N in-one devices 12 are in charge of step down side, and secondary N in-one devices 5 are in charge of high-voltage side outlet wire L5 and L6, two
Secondary N in-one devices 6 are in charge of high-voltage side outlet wire L10 and L11, and equipment 12,7 and 9 has collectively constituted the protection of bus 3；
Secondary N in-one devices 10,11,12 constitute the protection of bus 0 again；
Wherein, secondary N in-one devices 1 have primary equipment b1 with secondary N in-one devices 10, and secondary N in-one devices 4 divide again
Primary equipment b6, b8, b14 not total with secondary N in-one devices 1,11 and 8, secondary N in-one devices 12 and secondary N in-one devices 8
Total primary equipment b16.
Other secondary N in-one devices around secondary N in-one devices can be all of secondary N unifications in station communication net
Equipment, it is preferred that other the secondary N in-one devices with the total primary equipment of the secondary N in-one devices, or route is being limited
Secondary N in-one devices in hop count, can need to be set according to actual motion.
For example, other secondary N in-one devices can be all secondary N in station communication net around secondary N in-one devices 4
In-one device, selects to have the secondary N in-one devices 1,8 and 11 of primary equipment as around it with secondary N in-one devices 4 here
Secondary N in-one devices, not limited to this are selected certainly.
When the universal computing unit of secondary N in-one devices 4 fails, then according to described other secondary N in-one devices of surrounding
1st, 8 and 11 corresponding primary equipment information, selects secondary N unifications around most with current execution defencive function relevant information to set
It is standby, such as secondary N in-one devices 11, the universal computing unit of secondary N in-one devices 11 around described is override, and receive the week
The action command of the universal computing unit generation of secondary N in-one devices 11 is enclosed, so as to be protected by the performing module of equipment
Action.
Memory module is also stored with the routing iinformation of the station communication network, and secondary N in-one devices have around described
During two or more, prioritizing selection route nearest secondary N in-one devices.
It is illustrated in figure 3 the communication network of each secondary N in-one device, it is illustrated that be the side of VLAN Virtuals working group
Case.Certainly, specific networking plan includes but is not limited to VLAN networking plans.Using the VLAN partition modes based on port, according to
Actual demand, same port can be divided in the different vlans.According to the VLAN networking modes for building, identical point is constituted
The secondary N in-one devices of section bus protection can carry out high-speed traffic by virtual vlan network, realize and other sectionalized busbars letter
The isolation of breath；The secondary N in-one devices of different sectionalized busbars can realize information transfer by station communication net.
As the secondary N in-one devices 1,2,3,4 in bus section 1 can realize high-speed traffic, the secondary N in bus section 2
In-one device 4,5,6 can also realize high-speed traffic, and the secondary N in-one devices 5,6,7,8,9 in bus section 3 can also be realized quickly
Communication, and the communication of bus section 1 and bus section 3 can be realized by secondary N in-one devices 4, and when being communicated,
The segmentation of process is more, and equipment route is more remote.
When universal computing unit in secondary N in-one devices 4 fails, selection performs defencive function relevant information with current
Secondary N in-one devices around at most, if all comprising protection in secondary N in-one devices 4 in secondary N in-one devices 1,8 and 11
The related information of function, prioritizing selection is override comprising the more equipment of relevant information, if comprising relevant information it is identical,
According to networking diagram as shown in Figure 3, prioritizing selection route nearest secondary N in-one devices 1 and is override.
As a further improvement, universal computing unit includes more than one common calculation module, in a general-purpose computations
During Module Fail, the common calculation module not failed in prioritizing selection universal computing unit.
As universal computing unit includes n common calculation module, when common calculation module 1 fails, and other general-purpose computations
When module is normal, remaining the normal common calculation module in selection equipment carries out function overriding, realizes that the function in equipment is protected
Shield.
Specific embodiment is presented above, but the present invention is not limited to described implementation method.Base of the invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in teaching of the invention
The hardware configuration of shape, software flow.The change that is carried out to implementation method without departing from the principles and spirit of the present invention,
Modification, replacement and deformation are still fallen within protection scope of the present invention.
Claims (3)
1. a kind of intelligent substation secondary N in-one devices, it is characterised in that including：Information acquisition module, universal computing unit,
Information exchange module, memory module and performing module；
Information acquisition module is used for the service data of the primary equipment of Real-time Collection two or more electrical separation；
Universal computing unit is used for the service data according to information acquisition module, carries out Fault Identification, generates action command；
Performing module carries out protection act according to the action command to primary equipment；
Information exchange module be used for station communication network connection, carry out information exchange with other secondary N in-one devices；
Memory module is used for storage protection program and protection point information, and the corresponding electric equipment compartment of the secondary N in-one devices of surrounding
Every primary equipment information；
When performing defencive function, if universal computing unit fails, once set according to secondary N in-one devices are corresponding around described
Standby information, selects secondary N in-one devices around most with current execution defencive function relevant information, overrides secondary around described
The universal computing unit of N in-one devices, and receive the action of the universal computing unit generation of secondary N in-one devices around described
Order.
2. a kind of intelligent substation secondary N in-one devices according to claim 1, it is characterised in that the memory module
Also be stored with the routing iinformation of the station communication network, when secondary N in-one devices have two or more around described, preferential choosing
Routing is by nearest secondary N in-one devices.
3. a kind of intelligent substation secondary N in-one devices according to claim 1, it is characterised in that the general-purpose computations
Unit includes more than one common calculation module, when a common calculation module fails, prioritizing selection universal computing unit
In the common calculation module that does not fail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710081966.6A CN106899001B (en) | 2017-02-15 | 2017-02-15 | A kind of intelligent substation secondary N in-one device |
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| CN201710081966.6A CN106899001B (en) | 2017-02-15 | 2017-02-15 | A kind of intelligent substation secondary N in-one device |
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| CN106899001A true CN106899001A (en) | 2017-06-27 |
| CN106899001B CN106899001B (en) | 2019-04-09 |
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| CN203660662U (en) * | 2013-11-08 | 2014-06-18 | 国家电网公司 | Single-space five-in-one device for intelligent transformer station |
| CN104795897A (en) * | 2015-04-23 | 2015-07-22 | 广东电网有限责任公司电力调度控制中心 | Intelligent substation configurable relay protecting method and system |
| CN105871064A (en) * | 2016-04-29 | 2016-08-17 | 华北电力大学 | Station territory and wide territory integrated protection structure mode system and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102132469A (en) * | 2008-08-29 | 2011-07-20 | Abb研究有限公司 | Substation automation wiht redundant protection |
| CN102474095A (en) * | 2009-07-07 | 2012-05-23 | Abb研究有限公司 | Substation automation system with remote redundant protection function |
| CN101847865A (en) * | 2010-05-06 | 2010-09-29 | 安徽省电力公司合肥供电公司 | Electric network relay protection and fault analysis system |
| CN102118061A (en) * | 2011-01-07 | 2011-07-06 | 中国电力技术装备有限公司 | Method and system for centralized control of regional power grid |
| CN103269125A (en) * | 2013-05-08 | 2013-08-28 | 国家电网公司 | Multifunctional integrated configuration platform system of secondary equipment of intelligent substation |
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