CN108683176A - A method of 10 KV line branched lines of judgement have a power failure - Google Patents
A method of 10 KV line branched lines of judgement have a power failure Download PDFInfo
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- CN108683176A CN108683176A CN201810360870.8A CN201810360870A CN108683176A CN 108683176 A CN108683176 A CN 108683176A CN 201810360870 A CN201810360870 A CN 201810360870A CN 108683176 A CN108683176 A CN 108683176A
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- distribution transforming
- power failure
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- public distribution
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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
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- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Taken time and effort for the mode whether public distribution transforming belongs to same branched line that solves to have a power failure in 10 KV line of artificial judgment in the prior art, inefficiency the technical issues of, the present invention provides a kind of method judging that 10 KV line branched lines have a power failure using management system.Include the following steps：S1：Within the setting period, all public distribution transforming quantity N on the public distribution transforming quantity M and the circuit having a power failure in 10 KV line are obtained；S2：When M is more than or equal to 2, gradually other public distribution transforming public distribution transformings earliest with power off time that have a power failure are compared, will have a power failure and recorded into M1 groups with all power failure public affairs distribution transformings of telegram in reply time difference in 5 minutes；Above-mentioned judgement is repeated within the scope of the power failure public affairs distribution transforming other than M1, and corresponding qualified public distribution transforming is recorded into Mn groups；S3：When public distribution transforming the quantity m1 and mn for judging M1 groups and Mn groups are less than the 50% of N, branched line has a power failure where judging M1 or Mn.Compared with prior art, the present invention improves efficiency, has saved resource.
Description
Technical field
The present invention relates to the sides that electrical network analysis technical field more particularly to a kind of 10 KV line branched lines of judgement have a power failure
Method.
Background technology
As company's power system monitor is information-based, the continuous development of automatic technology, have dispatching automation, distribution automation
System realizes the grid operating monitoring function to emphasis urban area, but for the not covered outskirts of a town of distribution automation, township
Town and the vast rural areas, more power-off fault in 10 KV line, after still being fed back by user's repair call, ability
Repair personnel is sent to handle, and common processing mode, the public distribution transforming also broken down only for the bottom is that is, public
It with distribution transformer, is overhauled, since public distribution transforming is distributed in different places, it is difficult to be found by autoptical mode
The power-off fault of public distribution transforming whether be caused by branched line where public distribution transforming breaks down, for power failure coverage and
Rule lacks effective monitoring analysis, it is difficult to find existing fault correlation and most basic power failure between single failure public affairs distribution transforming
Failure cause.Therefore, the mode of live investigation is directly carried out whether through artificial on-the-spot investigation, or the artificial data that carry out are divided
The mode of analysis, to find the association between failure public affairs distribution transforming, all on business distribution transforming is widely distributed and electric network data is huge and will expend
Huge manpower and time, and inefficiency.Therefore, there is an urgent need for a management systems to be realized to power-off fault using automatic method
The analysis of relationship between public distribution transforming finds whether the public distribution transforming of power failure belongs to same branch line in 10 KV line, for fundamentally
It solves failure problems and foundation is provided.
Invention content
To solve to have a power failure in 10 KV line of artificial judgment in the prior art, whether public distribution transforming belongs to same branched line
The technical issues of mode takes time and effort, inefficiency, the present invention provides a kind of judging 10 KV line branches using management system
The method of line outage.
In order to solve the above technical problems, the present invention provides a kind of judgement method that 10 KV line branched lines have a power failure, packet
Include following steps：
S1：Within the setting period, management system obtains the public distribution transforming quantity of all power failures in 10 KV line automatically
M, and M is stored to database；
S2：Management system calls production management system to obtain all public affairs distribution transforming quantity N in above-mentioned 10 KV line automatically, and
N is stored into database；
S3：Management system judges whether the public distribution transforming quantity M having a power failure is more than or equal to 2, in the public distribution transforming quantity M that judgement has a power failure
When more than or equal to 2, continue step S4；
S4：Management system obtains power off time and the telegram in reply time of all public distribution transformings that have a power failure, and will stop according to power off time
The public distribution transforming sequence of electricity；
S5：On the basis of the public distribution transforming earliest by power off time, gradually judges the power off time of remaining public distribution transforming that has a power failure and stop
The power off time time difference of earliest public distribution transforming of electric time whether in 5 minutes, the telegram in reply time of remaining public distribution transforming that has a power failure with stop
The telegram in reply time difference of earliest public distribution transforming of electric time whether in 5 minutes, by all power failure public affairs distribution transformings of time difference in 5 minutes
It records into M1 groups；
Above-mentioned judgement is repeated within the scope of the power failure public affairs distribution transforming other than M1 groups, until all public distribution transforming judgements terminate, and
Corresponding qualified public distribution transforming is recorded into Mn groups；
S6：Management system obtains public distribution transforming the quantity m1 and mn of M1 groups and each group of Mn groups
S7：When judging that m1 or mn is less than the 50% of all public distribution transforming quantity N, judge M or and Mn where branched line stop
Electricity.
When method through the invention judges that 10 kilovolts of branched lines have a power failure, it is known that the public distribution transforming of branched line subordinate stops
The generation of electric event is fundamentally caused by being broken down by the branch outlet switchgear of the public affairs distribution transforming upper level, therefore, if
The only public distribution transforming of simple maintenance, does not overhaul upper level, then in the short time, the public distribution transforming of power-off event, which occurs, frequently to stop
Electricity.Therefore, management system and method using the present invention, can quickly find public distribution transforming power-off fault whether by upper level point
Branch outlet switchgear causes.
Preferably, in step S1, before the public distribution transforming quantity M having a power failure on obtaining 10 KV line, first judge to set
Whether each public distribution transforming has a power failure in 10 KV line in fixed cycle, takes following steps：
S01：Management system calls power information acquisition system, obtains the power off time of public distribution transforming acquisition terminal record and multiple
The electric time；
S02：Management system calls power information acquisition system, obtains the public distribution transforming outlet side critical point meter voltage missing
Time started and voltage lack the end time；
S03：Management system judges power off time and the critical point meter voltage missing time started of the acquisition terminal record
Whether match and whether the telegram in reply time of acquisition terminal record matches with the critical point meter voltage missing end time, is judging
When the power off time of acquisition terminal record is matched with the critical point meter voltage missing time started and acquisition terminal records
When the telegram in reply time matches with the critical point meter voltage missing end time, judge that the public distribution transforming has a power failure.
The acquisition terminal of public distribution transforming outlet side installation, may be due to factors such as cell degradation, external disturbance, equipment qualities
It influences, has a power failure and telegram in reply logout has inaccurate, incomplete phenomenon, by field test, percentage of head rice can reach
70%；The critical point meter of public distribution transforming outlet side installation, there is also acquisitions to fail, transmits communication abnormality for the acquisition of voltage data
Shortage of data, by field test, accuracy rate can reach 98%.Acquisition terminal and Source of Gateway Meter are counted as independent setting for two
It is standby, time started and electricity are lacked by the power failure telegram in reply time and the voltage of critical point meter record that judge acquisition terminal record record
Whether the pressure missing end time matches, and can fall the insincere data filtering of exception that acquisition terminal and critical point meter record.
Power off time about acquisition terminal record lacks the matching of time started with critical point meter voltage, and management system is logical
Whether the difference for spending power off time and critical point meter voltage missing time started for judging acquisition terminal record is sentenced in 5 minutes
It is fixed, when judging that the power off time of acquisition terminal record lacks the difference of time started in 5 minutes with critical point meter voltage, i.e.,
The power off time of judgement acquisition terminal record matches with the critical point meter voltage missing time started；
Preferably, management system calls power information acquisition system to obtain in measurement period, management system judgement described 10
When KV line branched line frequency of power cut is more than 2 times, judge that the 10 KV line branched line frequently has a power failure.Judge branch
When circuit frequently has a power failure, needs to carry out emphasis maintenance to the branched line outlet device, point the direction for maintenance.
Preferably, the measurement period duration is less than or equal to one month.
In existing grid information system, power grid GIS system topological model shows the topological relation of equipment on power network line,
By called data, confirm whether public distribution transforming belongs to same branched line；Production management system is equipment O＆M lean management system
System obtains the quantity information of public distribution transforming on circuit by transferring the data of the system；Power information acquisition system passes through installation
Stop time of sending a telegram in reply, and the Source of Gateway Meter mounted on public distribution transforming outlet side in the acquisition terminal record public distribution transforming of public distribution transforming outlet side
The output voltage values of the public distribution transforming of meter record.
When public distribution transforming has a power failure, the acquisition terminal of outlet side installation is less than rated voltage 60% in three-phase input voltage
And when continuing one minute, power-off event and time of origin are recorded, restores in acquisition terminal input voltage, is higher than rated voltage 80%
When, record telegram in reply event.Meanwhile the critical point meter of public distribution transforming outlet side installation, when public distribution transforming has a power failure, every 15 minutes to three-phase
The acquisition of voltage is null value, i.e. voltage missing time.The acquisition terminal and critical point meter recorded data of public distribution transforming outlet side,
Automatically it is uploaded to power information acquisition system；The management system of the present invention is judging the step of 10 KV line branched lines have a power failure
In, power information acquisition system, production management system and power grid GIS topological model are called as needed, obtain relevant information, and
It is carried out according to determination method.
Advantageous effect of the present invention includes：
Whether belong to the mode phase of same branched line with power failure equipments in 10 KV line of artificial judgment in the prior art
Than the present invention calls power information acquisition system, production management system automatically by management system, obtains relevant information, automatically
Judge that whether power failure equipments belong to same branched line in 10 KV line, improve efficiency, have saved resource.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, is implemented with the present invention
Example is used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the method and step for judging 10 KV line branched lines in the present invention and having a power failure；
Fig. 2 is the method and step for judging public distribution transforming in the present invention and having a power failure.
Specific implementation mode
Below in conjunction with the accompanying drawings, method provided by the invention is described in detail with specific embodiment.
Refering to fig. 1 with shown in Fig. 2, it is provided by the invention judgement 10 KV line branched lines have a power failure method, including with
Lower step：
S1：Interior for 24 hours in the setting period, management system obtains the public distribution transforming quantity M having a power failure in 10 KV line automatically；
S2：Management system obtains all public affairs distribution transforming quantity N in above-mentioned 10 KV line automatically；
S3：When the public distribution transforming quantity M that judgement has a power failure is more than or equal to 2, continue step S4；
S4：Power off time and the telegram in reply time of all public distribution transformings that have a power failure are obtained, and matches the public affairs of power failure according to power off time
Become sequence；
S5：On the basis of the public distribution transforming earliest by power off time, gradually judges the power off time of remaining public distribution transforming that has a power failure and stop
The power off time time difference of earliest public distribution transforming of electric time whether in 5 minutes, the telegram in reply time of remaining public distribution transforming that has a power failure with stop
The telegram in reply time difference of earliest public distribution transforming of electric time whether in 5 minutes, by all power failure public affairs distribution transformings of time difference in 5 minutes
It records into M1 groups；
Above-mentioned judgement is repeated within the scope of the power failure public affairs distribution transforming other than M1 groups, until all public distribution transforming judgements terminate, and
Corresponding qualified public distribution transforming is recorded into Mn groups；
S6：Obtain public distribution transforming the quantity m1 and mn of M1 groups and each group of Mn groups；
S7：Judge whether m1 and mn is less than the 50% of all public distribution transforming quantity N respectively, is less than in judgement m1 or mn all
Public distribution transforming quantity N 50% when, branched line has a power failure where judging M1 or Mn.
Preferably, in above-mentioned steps S1, before the public distribution transforming quantity M having a power failure on obtaining above-mentioned 10 KV line, first sentence
Whether each public distribution transforming has a power failure in above-mentioned 10 KV line of breaking, and takes following steps：
S01：Obtain power off time and the telegram in reply time of public distribution transforming acquisition terminal record；
S02：Obtain above-mentioned public distribution transforming outlet side critical point meter voltage missing time started and voltage missing end time；
S03：Judge the power off time of above-mentioned public distribution transforming acquisition terminal record is with the critical point meter voltage missing time started
Whether the telegram in reply time of no matching and acquisition terminal record matches with the critical point meter voltage missing end time, is adopted in judgement
When the power off time of collection terminal record is matched with the critical point meter voltage missing time started and when the telegram in reply of acquisition terminal record
Between with critical point meter voltage missing the end time match when, judge the public affairs distribution transforming power failure.Preferably, management system calling telecommunications
Acquisition system is ceased to obtain in measurement period, when management system judges that 10 KV line branched line frequencies of power cut are more than 2 times, judgement
10 KV line branched lines frequently have a power failure.
Preferably, measurement period duration is less than or equal to one month.
In conclusion whether belonging to same branch line with the public distribution transforming that has a power failure in 10 KV line of artificial judgment in the prior art
The mode on road is compared, scheme provided in an embodiment of the present invention, and power information acquisition system, production are called automatically by management system
Management system obtains relevant information, automatic to judge that whether the public distribution transforming of power failure belongs to same branched line in 10 KV line, improves
Efficiency, has saved resource.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (4)
1. the method that a kind of 10 KV line branched lines of judgement have a power failure, which is characterized in that include the following steps：
S1：Within the setting period, the public distribution transforming quantity M having a power failure in 10 KV line is obtained；
S2：Obtain all public affairs distribution transforming quantity N in above-mentioned 10 KV line；
S3：Judge whether the public distribution transforming quantity M having a power failure is more than or equal to 2, when the public distribution transforming quantity M that judgement has a power failure is more than or equal to 2,
Continue step S4；
S4：Power off time and the telegram in reply time of all public distribution transformings that have a power failure are obtained, and arranges the public distribution transforming of power failure according to power off time
Sequence carries out following judgement：
On the basis of the public distribution transforming earliest by power off time, gradually judge the power off time of remaining public distribution transforming that has a power failure with power off time most
The power off time time difference of early public distribution transforming, in 5 minutes whether the telegram in reply time of remaining public distribution transforming that has a power failure and power off time were most
In 5 minutes whether the telegram in reply time difference of early public distribution transforming, all power failure public affairs distribution transformings of time difference in 5 minutes are recorded into M1
Group；
Above-mentioned judgement is repeated within the scope of the power failure public affairs distribution transforming other than M1 groups, until all public distribution transforming judgements terminate, and phase
Qualified public distribution transforming is answered to record into Mn groups；
S5：Obtain public distribution transforming the quantity m1 and mn of M1 groups and each group of Mn groups；Judge whether m1 and mn is less than institute respectively
There is the 50% of public distribution transforming quantity N, when judging that m1 or mn is less than the 50% of all public distribution transforming quantity N, judges the places point M1 or Mn
Branch line has a power failure.
2. the method as described in claim 1, which is characterized in that in step S1, have a power failure on obtaining 10 KV line
Before public distribution transforming quantity M, first judge that whether each public distribution transforming has a power failure in 10 KV line, takes following steps：
S01：Obtain power off time and the telegram in reply time of public distribution transforming acquisition terminal record；
S02：Obtain the public distribution transforming outlet side critical point meter voltage missing time started and voltage missing end time；
S03：Judge whether the power off time of the acquisition terminal record matches with the critical point meter voltage missing time started, and
Whether the telegram in reply time of acquisition terminal record matches with the critical point meter voltage missing end time, is judging the acquisition terminal note
When the power off time of record and critical point meter voltage the missing time started matchs and telegram in reply time that acquisition terminal records and critical point
When meter voltage lacks end time matching, judge that the public distribution transforming has a power failure.
3. the method as described in claim 1, which is characterized in that in measurement period, judge the 10 KV line branched line
When frequency of power cut is more than 2 times, judge that the 10 KV line branched line frequently has a power failure.
4. method as claimed in claim 3, which is characterized in that the measurement period is less than or equal to one month.
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| CN201810360870.8A CN108683176B (en) | 2018-04-20 | 2018-04-20 | Method for judging power failure of 10 kV line branch line |
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| CN201810360870.8A CN108683176B (en) | 2018-04-20 | 2018-04-20 | Method for judging power failure of 10 kV line branch line |
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Cited By (1)
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| CN110990387A (en) * | 2019-11-29 | 2020-04-10 | 广东电网有限责任公司 | Method and device for processing power failure record error of electric energy metering equipment |
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