CN106100132A - The intelligent station combining unit control method of a kind of faulty action preventing and device - Google Patents
The intelligent station combining unit control method of a kind of faulty action preventing and device Download PDFInfo
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- CN106100132A CN106100132A CN201610651238.XA CN201610651238A CN106100132A CN 106100132 A CN106100132 A CN 106100132A CN 201610651238 A CN201610651238 A CN 201610651238A CN 106100132 A CN106100132 A CN 106100132A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012952 Resampling Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 abstract description 7
- 230000004075 alteration Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 241000272814 Anser sp. Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- H02J13/0006—
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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
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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
- 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
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Abstract
The invention belongs to intelligent substation technical field of relay protection, be specifically related to intelligent station combining unit control method and the device of a kind of faulty action preventing.First the method obtains the data (i.e. itself total evidence) of this combining unit and the data (i.e. assisting total evidence) of the another set of combining unit of double configurations, then by itself total according to total with auxiliary according to carrying out resampling, synchronization, heavier sampling, synchronize after itself total according to and assist total evidence: if after Tong Buing, the corresponding moment itself total according to and auxiliary total according between difference less than or equal to setting value, then normal send described evidence totally own；If more than setting value, then reporting to the police.The present invention, in order to solve the problem that in prior art, combining unit data are not accurate enough, improves the reliability and stability of intelligent station combining unit output data, and hardware cost is low, and software alteration is less, beneficially field conduct application.
Description
Technical field
The invention belongs to intelligent substation technical field of relay protection, the intelligent station being specifically related to a kind of faulty action preventing merges single
Unit's control method and device.
Background technology
The reliability of protective relaying device is the guarantee that power system safety and stability runs, power system relay protection device
Sampling is normally the basis of its reliability action.
The sampled data that conventional substation relay protection uses has been gathered by device itself, general by inside device
The redundancy structure using hardware improves reliability.In intelligent substation, the sampled data that protective relaying device uses is by merging
Unit collection completes, and shares to protective relaying device based on IEC61850 stipulations.Ac analog enters combining unit through handing over
It is divided into Liang Ge branch after stream head conversion, respectively by two A/D sample circuits, but is to be given to a transducer after double A/D sampling, turns
Carry out synchronization process by MU after changing and data are packed, be sent to protection device by optical fiber.
Therefore the whole sampling circuit of combining unit only has A/D circuit to be Redundancy Design, other link (such as exchange head,
Data transmission after A/D sampling) it is all single circuit design, considerably increase the risk that combining unit goes wrong, add protection
Error action of device or the probability of tripping, bring hidden danger to the reliability service of electrical network.
Summary of the invention
It is an object of the invention to provide intelligent station combining unit control method and the device of a kind of faulty action preventing, be used for solving now
There is the problem that in technology, combining unit data are not accurate enough, to improve reliability and the selectivity of intelligent station protection device.
For solving above-mentioned technical problem, the present invention proposes the intelligent station combining unit control method of a kind of faulty action preventing, the party
Method includes:
1) obtain the data of this combining unit, be referred to as total evidence itself；
2) obtain the data of the another set of combining unit of double configuration, be referred to as assisting total evidence；
3) by total with described auxiliary for itself total evidence described synchronize according to carrying out, itself the total evidence after synchronization is compared with auxiliary
Help total evidence；
4) if after Tong Buing, the corresponding moment itself total according to and auxiliary total according between difference less than or equal to setting value,
Then normal transmission total evidence described itself；If more than setting value, then reporting to the police.
Further, judge that itself is entirely by the ratio of the difference of total evidence own and the total evidence of auxiliary with total evidence own
Difference between data and the total evidence of auxiliary, ratio is 10%.
Further, itself total evidence above-mentioned includes the A/D data of this combining unit, cascade data.
For solving above-mentioned technical problem, the present invention also proposes the intelligent station combining unit of a kind of faulty action preventing and controls device, should
Device includes: for obtaining the module of this combining unit data, is referred to as total evidence itself；For obtaining another fit of double configuration
And the module of the data of unit, it is referred to as assisting total evidence；For by total to described total evidence own and described auxiliary same according to carrying out
Step, compares itself the total evidence after synchronization and the module assisting total evidence；For the module carrying out processing according to comparative result, if
Between the total evidence in after synchronization, corresponding moment own and the total evidence of auxiliary, difference is less than or equal to setting value, the most normally sends institute
State total evidence itself, if more than setting value, then reporting to the police.
Further, judge that itself is entirely by the ratio of the difference of total evidence own and the total evidence of auxiliary with total evidence own
Difference between data and the total evidence of auxiliary, above-mentioned ratio is 10%.
Further, itself total evidence above-mentioned includes the A/D data of this combining unit, cascade data.
The invention has the beneficial effects as follows: in the case of not introducing any hardware device, by redundancy is arranged another
The data of set combining unit are compared with the data of this combining unit, the most credible to judge the data of combining unit；Thus
Improve the reliability and stability of intelligent station combining unit output data；Hardware cost is low, and software alteration is less, is conducive to existing
Field practices.
Accompanying drawing explanation
Fig. 1 is the fiber cabling figure of the faulty action preventing intelligent station combining unit control method of the present invention；
Fig. 2 is the sampling schematic diagram of the faulty action preventing intelligent station combining unit control method of the present invention；
Fig. 3 is the schematic flow sheet of the faulty action preventing intelligent station combining unit control method of the present invention.
Detailed description of the invention
The present invention proposes the intelligent station combining unit control method of a kind of faulty action preventing, and step is as follows:
Obtain the data of this combining unit, be referred to as total evidence itself；Obtain the data of the another set of combining unit of double configuration,
It is referred to as assisting total evidence；Itself is total according to total with described auxiliary synchronize according to carrying out by described, compares itself after synchronization total
According to assist total evidence；If difference is less than or equal to setting between the total evidence in after Tong Buing, corresponding moment own and the total evidence of auxiliary
Definite value, then normal transmission total evidence described itself, if more than setting value, then reporting to the police.
Illustrate below in conjunction with the accompanying drawings, the faulty action preventing intelligent station combining unit control method of the present invention is described in detail.
The 220kV of configurations double for combining unit and above intelligent substation, and 110kV and following electric pressure intelligence
Transformer station, the combining unit of double configurations can be different producer, and the combining unit of double configurations is generally mounted to same screen body
Or on switch cubicle.
It is illustrated in figure 1 fiber cabling figure.1 and 2 is the two set combining units being installed on same Intelligent control cabinet, above
For A overlap combining unit, below for B overlap combining unit；3 and the 4 7#SV plug-in units being respectively A set combining unit and 6#SV insert
Part；5 and the 6 7#SV plug-in unit being respectively B set combining unit and 6#SV plug-in units.
It is used for receiving cascade data (voltage data that i.e. bus combining unit sends), 6# by the R1 light mouth of 7#SV plug-in unit
The R1 light mouth of SV plug-in unit is for receiving the total evidence of auxiliary of another combining unit.T6 light A set combining unit 7#SV plug-in unit
Mouth is connected by the R1 light mouth of multimode fibre stern fast 7 with the 6#SV plug-in unit of B set combining unit, and B is overlapped combining unit 7#SV plug-in unit
T6 light mouth be connected by the R1 light mouth of the 6#SV plug-in unit of multimode fibre stern fast 8 and A set combining unit.
In prior art, the data process method of A set combining unit or B set combining unit is: the number after A/D is sampled
Carry out resampling according to the data (by the total evidence of both synthesis itself) come with cascade, then carry out synchronizing and packing process after lead to
Cross optical fiber stern fast and be sent respectively to the protection device of correspondence.
The present invention makes following amendment relative to prior art, as shown in Figure 2: A or B set combining unit is except to A/ own
The data (by the total evidence of both synthesis itself) that data after D sampling come with cascade carry out outside resampling, also to other set
The auxiliary that combining unit sends is total according to carrying out resampling, then two total evidences after resampling (i.e. after resampling
Itself is total according to evidence total with the auxiliary after resampling) carry out synchronize, it is combined the total evidence of unit itself on this basis again
Total according to being made whether to judge normally according to auxiliary.
If the value of A set combining unit passage is mi, it is n that B set combining unit is sent to A set combining unit channel valuei,
The error of two groups of total evidences is calculated, it is judged that SV data are the most normal according to equation below (1).
If e≤10% (i=1,2,3 ...), the error of the value of arbitrary passage all in the range of 10%, then judges this
The data of combining unit are normal, send normal SV data, and the analog data quality that now combining unit sends is normal.Then sentence
Whether disconnected SV data are at alarm status, if former SV data are in alarm status, then relevant alarm resetted, including sent
GOOSE alarm data resets and device panel stand by lamp extinguishes；If former SV data are not at alarm status, then enter next and follow
Ring.
If e ＞ 10% (i=1,2,3 ...), as long as having the error of a passage more than 10%, then judge this combining unit
Data exception, sends abnormal SV data, and the analog data quality that now combining unit sends is invalid.Then judge that SV data are
No at alarm status, if former SV data are in alarm status, then enter subsequent cycle；If SV data are not at alarm status, then
Relevant alarm is resetted, resets including the GOOSE alarm data sent and device panel stand by lamp extinguishes.
About resampling and synchronization, belong to prior art, the most do not do too much introduction.
In the present embodiment, using the ratio of evidence totally own and the difference of the total evidence of auxiliary and total evidence own as judgement itself
Total according to and auxiliary total according between the foundation of difference, as other embodiments, it is also possible to directly the total evidence of employing itself with
The ratio or the difference that assist total evidence as the total evidence of judgement itself and assist the foundation of difference between total evidence.
Combining unit in the present embodiment is interval combining unit, and therefore itself is total according to including that coming from bus merges single
The cascade data of unit.If bus combining unit, then itself is total according to not including cascade data.
The present invention also provides for the intelligent station combining unit of a kind of faulty action preventing and controls device, and this device includes: be used for obtaining this
The module of the data of combining unit, is referred to as total evidence itself；For obtaining the mould of the data of the another set of combining unit of double configuration
Block, is referred to as assisting total evidence；For by total with described auxiliary for itself total evidence described synchronize according to carrying out, comparing the basis after synchronization
Body is total according to the module with the total evidence of auxiliary；For the module carrying out processing according to comparative result, if after Tong Buing, the corresponding moment
Itself total according to and auxiliary total according between difference less than or equal to setting value, then normal send itself total evidence described, if greatly
In setting value, then report to the police.
The intelligent station combining unit of above-mentioned faulty action preventing controls device, is actually based on a kind of meter of the inventive method flow process
Calculation machine solution, i.e. a kind of software architecture, above-mentioned various modules are each treatment progress corresponding with method flow or journey
Sequence.Due to complete to the introduction sufficiently clear of said method, therefore it is described the most in detail.
Finally should be noted that above example is only in order to illustrate technical scheme rather than to limit it
System, although being described in detail the present invention with reference to above-described embodiment, it will be understood by those skilled in the art that: still
The detailed description of the invention of the present invention can be modified or equivalent, without departing from the scope of the invention any amendment or
Equivalent, it all should be contained in the middle of scope of the presently claimed invention.
Claims (6)
1. the intelligent station combining unit control method of a faulty action preventing, it is characterised in that comprise the steps:
1) obtain the data of this combining unit, be referred to as total evidence itself；
2) obtain the data of the another set of combining unit of double configuration, be referred to as assisting total evidence；
3) by described itself total according to total with described auxiliary according to carry out resampling and Tong Bu after, compare；
4) process according to comparative result: if resampling and after synchronizing, the corresponding moment itself is total according to total with auxiliary
Between according to, difference is less than or equal to setting value, then normal transmission total evidence described itself；If more than setting value, then reporting to the police.
The intelligent station combining unit control method of faulty action preventing the most according to claim 1, it is characterised in that complete by itself
Data and auxiliary total according to difference and the ratio of total evidence itself judge itself total according to and auxiliary total according between difference, institute
Stating ratio is 10%.
The intelligent station combining unit control method of faulty action preventing the most according to claim 1, it is characterised in that described own complete
Data include A/D data and the cascade data of this combining unit.
4. the intelligent station combining unit of a faulty action preventing controls device, it is characterised in that include such as lower module:
1) for obtaining the module of the data of this combining unit, it is referred to as total evidence itself；
2) for obtaining the module of the data of the another set of combining unit of double configuration, it is referred to as assisting total evidence；
3) for by total with described auxiliary for itself total evidence described synchronize according to carrying out, comparing itself the total evidence after synchronization with auxiliary
Help the module of total evidence；
4) for carrying out, according to comparative result, the module that processes: if after Tong Buing, the corresponding moment itself is total according to auxiliary entirely
Between data, difference is less than or equal to setting value, then normal transmission total evidence described itself；If more than setting value, then reporting to the police.
The intelligent station combining unit of faulty action preventing the most according to claim 4 controls device, it is characterised in that complete by itself
Data and auxiliary total according to difference and the ratio of total evidence itself judge itself total according to and auxiliary total according between difference, institute
Stating ratio is 10%.
The intelligent station combining unit of faulty action preventing the most according to claim 4 controls device, it is characterised in that described own complete
Data include the A/D data after the resampling of this combining unit and cascade data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651238.XA CN106100132A (en) | 2016-08-10 | 2016-08-10 | The intelligent station combining unit control method of a kind of faulty action preventing and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651238.XA CN106100132A (en) | 2016-08-10 | 2016-08-10 | The intelligent station combining unit control method of a kind of faulty action preventing and device |
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| CN106100132A true CN106100132A (en) | 2016-11-09 |
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| CN201610651238.XA Pending CN106100132A (en) | 2016-08-10 | 2016-08-10 | The intelligent station combining unit control method of a kind of faulty action preventing and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655076A (en) * | 2016-12-29 | 2017-05-10 | 许继集团有限公司 | On-site relay protection reliability control apparatus and relay protection method |
| CN106684838A (en) * | 2016-12-29 | 2017-05-17 | 许继集团有限公司 | Local relay protection control device and relay projection method |
| CN106896282A (en) * | 2017-01-06 | 2017-06-27 | 许继集团有限公司 | A kind of data sampling method and the combining unit for data sampling |
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| EP2779341A1 (en) * | 2011-11-11 | 2014-09-17 | Kabushiki Kaisha Toshiba | Protection control system and merging unit |
| CN104753038A (en) * | 2015-03-27 | 2015-07-01 | 广州至德电力科技有限公司 | Intelligent substation centralized relay protection system and method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2779341A1 (en) * | 2011-11-11 | 2014-09-17 | Kabushiki Kaisha Toshiba | Protection control system and merging unit |
| CN102684145A (en) * | 2012-04-28 | 2012-09-19 | 辽宁省电力有限公司朝阳供电公司 | Sampling data exception detecting method and relay protection method based on redundant CT windings |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655076A (en) * | 2016-12-29 | 2017-05-10 | 许继集团有限公司 | On-site relay protection reliability control apparatus and relay protection method |
| CN106684838A (en) * | 2016-12-29 | 2017-05-17 | 许继集团有限公司 | Local relay protection control device and relay projection method |
| CN106655076B (en) * | 2016-12-29 | 2019-05-14 | 许继集团有限公司 | Site reliability of relay protection control device and relay protecting method |
| CN106896282A (en) * | 2017-01-06 | 2017-06-27 | 许继集团有限公司 | A kind of data sampling method and the combining unit for data sampling |
| CN106896282B (en) * | 2017-01-06 | 2019-05-14 | 许继集团有限公司 | A kind of data sampling method and the combining unit for data sampling |
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Application publication date: 20161109 |