CN108695974A - A method of 10 KV line basic routing lines of judgement have a power failure - Google Patents
A method of 10 KV line basic routing lines of judgement have a power failure Download PDFInfo
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Abstract
For solve in the prior art manual analysis failure public affairs distribution transforming come judge to take time and effort by way of whether 10 KV line backbones have a power failure, inefficiency the technical issues of, the present invention provide it is a kind of using management system judge 10 KV line basic routing lines have a power failure method.Include the following steps:S1:It sets in the period, obtains the public distribution transforming quantity M of all power failures and all public distribution transforming quantity N in 10 KV line;S2:When judging that M is more than or equal to the 50% of N, continue step S3;S4:It obtains at the beginning of above-mentioned 10 KV line substation exit side critical point meter electric current is zero and the end time, and the power off time for the public distribution transforming that has a power failure and telegram in reply time;S6:When the telegram in reply time match of the end time for being zero with the power off time matching for the public distribution transforming that has a power failure and electric current at the beginning of judging that critical point meter electric current is zero and the public distribution transforming of power failure, judge that the 10 KV line basic routing line has a power failure.Compared with prior art, the present invention improves efficiency, has saved resource.
Description
Technical field
The present invention relates to electric network fault analysis technical fields more particularly to a kind of 10 KV line basic routing lines of judgement to 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 handled, since public distribution transforming is distributed in different places, it is difficult to be found by autoptical mode
Caused by backbone where whether the power-off fault of public distribution transforming is public distribution transforming breaks down, for power failure coverage and rule
Lack effective monitoring analysis, it is difficult to find existing fault correlation and most basic power-off fault between single failure public affairs distribution transforming
Reason.Therefore, the mode of live investigation is directly carried out whether through artificial on-the-spot investigation, or manually carries out data analysis
Mode, 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
Big manpower and time, and inefficiency.Therefore, there is an urgent need for a management systems to be realized to power-off fault public affairs using automatic method
The analysis of relationship between distribution transforming, find in 10 KV line public distribution transforming have a power failure whether be caused by backbone has a power failure, for from root
Failure problems are solved in sheet, and foundation is provided.
Invention content
To solve to judge whether 10 KV line basic routing lines stop by manual analysis failure public affairs distribution transforming in the prior art
Electricity mode take time and effort, inefficiency the technical issues of, the present invention provide it is a kind of using management system judge 10 KV line
The method that basic routing line has a power failure.
In order to solve the above technical problems, the present invention provides a kind of judgement method that 10 KV line basic routing lines have a power failure, packet
Include following steps:
S1:It sets in the period, management system obtains the public distribution transforming quantity M of all power failures in 10 KV line automatically;
S2:Management system calls production management system to obtain all public affairs distribution transforming quantity N in above-mentioned 10 KV line automatically;
S3:Management system judges whether the public distribution transforming quantity M having a power failure is more than or equal to the 50% of all public distribution transforming quantity N,
When the public distribution transforming quantity M that judgement has a power failure is more than or equal to the 50% of all public distribution transforming quantity N, continue step S4;
S4:Management system calls power information acquisition system to obtain above-mentioned 10 KV line substation exit side critical point automatically
At the beginning of meter electric current is zero and the end time;
S5:Management system calling power information acquisition system obtains the power failure of the above-mentioned public distribution transforming of 10 KV line power failure automatically
Time and telegram in reply time;
S6:Management system judge at the beginning of 10 KV line substation exit side critical point meter electric current is zero and
Whether the telegram in reply time of whether the power off time of the public affairs that have a power failure distribution transforming matches and electric current is zero end time and the public distribution transforming that has a power failure
Matching, at the beginning of judging that 10 KV line substation exit side critical point meter electric current is zero and the public distribution transforming that has a power failure
When the telegram in reply time match for end time and the power failure public distribution transforming that power off time matches and electric current is zero, judgement described 10,000
Hint road basic routing line has a power failure.
When method through the invention judges that 10 KV line basic routing lines have a power failure, it is known that the public affairs in 10 KV line are matched
The generation for becoming power-off event is fundamentally caused by the failure of basic routing line where the public affairs distribution transforming, therefore, if only simple inspection
Public distribution transforming is repaiied, basic routing line is not overhauled, then in the short time, the public distribution transforming of power-off event, which will occur, frequently to have a power failure.Therefore,
Management system and method using the present invention can quickly find whether the power-off fault of public distribution transforming is led by basic routing line failure
It causes, indicates invention for trouble hunting, improve the ability of operation management.
Preferably, in step S1, before the public distribution transforming quantity M having a power failure on obtaining 10 KV line, institute is first judged
It states whether each public distribution transforming in 10 KV line has a power failure, takes following steps:
S01:Management system calls power information acquisition system, obtains the power off time of the public distribution transforming acquisition terminal record
With the telegram in reply time;
S02:Management system calls power information acquisition system, and the voltage missing for obtaining public distribution transforming critical point meter starts
Time 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, by judge power failure telegram in reply time of acquisition terminal record record and critical point meter record voltage missing time whether
Match, the insincere data filtering of exception that acquisition terminal and critical point meter record can be fallen.
The telegram in reply time about acquisition terminal record lacks the matching of end time with critical point meter voltage, and management system is logical
Whether the difference for spending telegram in reply time and critical point meter voltage missing end time for judging acquisition terminal record is sentenced in 5 minutes
It is fixed, when judging that the telegram in reply time of acquisition terminal record lacks the difference of end time in 5 minutes with critical point meter voltage, i.e.,
The telegram in reply time of judgement acquisition terminal record matches with the critical point meter voltage missing end time.
Preferably, management system calls power information acquisition system to obtain in measurement period, management system judgement described 10
When KV line basic routing line frequency of power cut is more than 2 times, judge that the 10 KV line basic routing line frequently has a power failure.
Have a power failure each time preferably, management system calls power information acquisition system to obtain the public distribution transforming in measurement period
The power failure duration of event and the frequency of power-off event judge that the power failure duration of the public distribution transforming is more than 2 hours and has a power failure
When number is more than or equal to 3 times, judge that the public distribute-electricity transformer district frequently has a power failure.When the public distribution transforming of judgement frequently has a power failure, need to the public affairs
Distribution transforming carries out emphasis maintenance, points 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 basic routing lines have a power failure
In, power information acquisition system, production management system are called as needed, obtain relevant information, and carry out according to determination method.
Advantageous effect of the present invention includes:
With judge what whether 10 KV line basic routing lines had a power failure by manual analysis failure public affairs distribution transforming in the prior art
Mode is compared, and the present invention calls power information acquisition system, production management system automatically by management system, obtains related letter
Breath, the data by automatically analyzing failure public affairs distribution transforming judge whether 10 KV line basic routing lines have a power failure, improve efficiency, save
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 basic routing 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.
As shown in fig.1, the method that 10 KV line basic routing lines of judgement provided by the invention have a power failure, including following step
Suddenly:
S1:The setting period is interior for 24 hours, and management system obtains the public distribution transforming quantity of all power failures in 10 KV line automatically
M;
S2:Management system calls production management system to obtain all public affairs distribution transforming quantity N in above-mentioned 10 KV line automatically;
S3:Management system judges whether the public distribution transforming quantity M having a power failure is more than or equal to the 50% of all public distribution transforming quantity N,
When the public distribution transforming quantity M that judgement has a power failure is more than or equal to the 50% of all public distribution transforming quantity N, continue step S4;
S4:Management system calls power information acquisition system to obtain above-mentioned 10 KV line substation exit side critical point automatically
At the beginning of meter electric current is zero and the end time;
S5:When management system calls production management system to obtain the power failure for the public distribution transforming that has a power failure in above-mentioned 10 KV line automatically
Between and telegram in reply the time;
S6:Management system judge at the beginning of 10 KV line substation exit side critical point meter electric current is zero and
Whether the telegram in reply time of whether the power off time of the public affairs that have a power failure distribution transforming matches and electric current is zero end time and the public distribution transforming that has a power failure
Matching, at the beginning of judging that 10 KV line substation exit side critical point meter electric current is zero and the public distribution transforming that has a power failure
When the telegram in reply time match for end time and the power failure public distribution transforming that power off time matches and electric current is zero, judgement described 10,000
Hint road basic routing line has a power failure.
As shown in fig.2, preferably, in step S1, before the public distribution transforming quantity M having a power failure on obtaining 10 KV line,
First judge that whether each public distribution transforming has a power failure in 10 KV line, 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.
Preferably, management system calls power information acquisition system to obtain in measurement period, management system judges 10 kilovolts
When circuit basic routing line frequency of power cut is more than 2 times, 10 KV line basic routing lines of judgement frequently have a power failure.
Preferably, management system calls power information acquisition system to obtain in measurement period public distribution transforming power-off event each time
Power failure duration and power-off event frequency, judge that the power failure duration of public distribution transforming is more than 2 hours and frequency of power cut is big
When equal to 3 times, judge that public distribute-electricity transformer district frequently has a power failure.
Preferably, measurement period duration is less than or equal to one month.
In conclusion with being to judge 10 KV line basic routing lines by manual analysis failure public affairs distribution transforming in the prior art
The mode of no power failure is compared, and the present invention calls power information acquisition system, production management system automatically by management system, is obtained
Relevant information, the data by automatically analyzing failure public affairs distribution transforming judge whether 10 KV line basic routing lines have a power failure, improve effect
Rate 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 basic routing lines of judgement have a power failure, which is characterized in that include the following steps:
S1:It sets in the period, obtains the public distribution transforming quantity M having a power failure in 10 KV line;
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 the 50% of all public distribution transforming quantity N, in the public affairs that judgement has a power failure
When distribution transforming quantity M is more than or equal to the 50% of all public distribution transforming quantity N, continue step S4;
S4:It obtains at the beginning of above-mentioned 10 KV line substation exit side critical point meter electric current is zero and the end time;
S5:Obtain power off time and the telegram in reply time of the public distribution transforming that has a power failure in above-mentioned 10 KV line;
S6:Judge at the beginning of 10 KV line substation exit side critical point meter electric current is zero and the public distribution transforming that has a power failure
Whether the telegram in reply time of whether power off time matches and electric current is zero end time and the public distribution transforming that has a power failure match, and are judging
At the beginning of 10 KV line substation exit side critical point meter electric current is zero and the power off time for the public distribution transforming that has a power failure
Match and when the telegram in reply time match of end time that electric current is zero and the public distribution transforming that has a power failure, judges the 10 KV line trunk
Line outage.
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 basic routing line
When frequency of power cut is more than 2 times, judge that the 10 KV line basic routing line frequently has a power failure.
4. method as claimed in claim 3, which is characterized in that the measurement period duration is less than or equal to one month.
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| CN201810360867.6A CN108695974B (en) | 2018-04-20 | 2018-04-20 | Method for judging power failure of 10 KV line trunk line |
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| CN201810360867.6A CN108695974B (en) | 2018-04-20 | 2018-04-20 | Method for judging power failure of 10 KV line trunk line |
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| CN111813825A (en) * | 2020-06-02 | 2020-10-23 | 国网江西省电力有限公司电力科学研究院 | Distribution transformer outlet power failure event missing report automatic detection method and system |
| CN112766636A (en) * | 2020-12-23 | 2021-05-07 | 国网河南省电力公司电力科学研究院 | Distribution transformer power failure judgment method based on electric quantity information acquired by power consumption information acquisition terminal |
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