CN107817396A - Based on the method that electric energy meter phase angle false judgment line loss is abnormal - Google Patents
Based on the method that electric energy meter phase angle false judgment line loss is abnormal Download PDFInfo
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- CN107817396A CN107817396A CN201710825055.XA CN201710825055A CN107817396A CN 107817396 A CN107817396 A CN 107817396A CN 201710825055 A CN201710825055 A CN 201710825055A CN 107817396 A CN107817396 A CN 107817396A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
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- General Physics & Mathematics (AREA)
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Abstract
The present invention relates to based on the abnormal method of electric energy meter phase angle false judgment line loss, belong to technical field of electric power, by phase angle numerical value in determination methods, the line loss per unit section of abnormal occurrence number and affiliated taiwan area or circuit is as basis for estimation, and carry out a point situation to the gathered data of phase three-wire three and three-phase and four-line electric energy meter respectively to judge, according to phase angles data, the line loss per unit interval censored data of abnormal occurrence number and affiliated taiwan area or circuit carries out condition limitation, meet condition, then may determine that causes line loss abnormal for electric energy meter phase angle mistake, the method being related in the present invention can be filtered out precisely due to phase angle mistake caused by electrical energy meter fault or artificial stealing etc., strong data supporting is provided for field check personnel, improve the operating efficiency of line loss improvement.
Description
Technical field
The invention belongs to technical field of electric power, is related to the method for judging that line loss is abnormal, and in particular to based on electric energy meter phase
The abnormal method of angle false judgment line loss.
Background technology
Existing technology judges that foundation condition is single during line loss exception, i.e., the gathered data of electric energy meter current voltage occurs different
It is often it is assumed that abnormal for line loss, do not calculate electric energy meter phase angle using gathered data and analyze, and then judge connection box of electric energy meter
Mistake etc. is abnormal, not by exception and phase angle numerical value, abnormal occurrence number, affiliated taiwan area or the line loss per unit section of circuit and ripple
The many factors such as dynamic value consider, and add field check personnel's workload, reduce the operating efficiency of professional.
The content of the invention
Instant invention overcomes the shortcomings that prior art, there is provided one kind is abnormal based on electric energy meter phase angle false judgment line loss
Method, this method can be filtered out precisely due to phase angle mistake caused by electrical energy meter fault or artificial stealing etc., for scene
Check and data supporting is provided, significantly improve line loss control efficiency, ensure that the accuracy that line loss judges extremely.
The present invention concrete technical scheme be：
Based on the method that electric energy meter phase angle false judgment line loss is abnormal, this method be the critical point of filtering collection mistake,
The energy data of user, exclude due to the exceptional sample of harvester failure, exclude to exist and tear table open, change the number of users of surface low journey
According to excluding because phase angle is abnormal and by checking in User Profile information caused by capacitance compensation is abnormal, cable capacitance is excessive
Metering method, rated voltage electric current, the mode of connection of electric energy meter, exclude files on each of customers typing mistake the problem of on the basis of carry out
, key point is that described method judges the abnormal judgement operation of line loss, judgement operation step using the gathered data of electric energy meter
It is rapid as follows：
A, if the gathered data of three-phase three-wire electric energy meter, then step B is skipped to；If three-phase and four-line electric energy meter is adopted
Collect data, then skip to step C；Otherwise, step D is skipped to；
B, electric energy meter gathered data is analyzed, if there is any one following situation：
1. A, the phase angle of B phase voltages and A phase currents is less than 10 degree or more than 90 degree；
2. C, the phase angle of B phase voltages and C phase currents is less than -50 degree or more than 30 degree；
Also, occurrence number more than 6 times in a consecutive days, at the same affiliated taiwan area line loss per unit not in 0-9% sections or
Affiliated circuit line loss per unit is judged as that phase angle mistake causes line loss abnormal not in 0-5% sections；Otherwise, step is skipped to
D；
C, electric energy meter gathered data is analyzed, if there is any one following situation：
1. the phase angle of A phase voltages and A phase currents is less than -20 degree or more than 60 degree；
2. the phase angle of B phase voltages and B phase currents is less than -20 degree or more than 60 degree；
3. the phase angle of C phase voltages and C phase currents is less than -20 degree or more than 60 degree；
Also, occurrence number more than 6 times in a consecutive days, at the same affiliated taiwan area line loss per unit not in 0-9% sections or
Affiliated circuit line loss per unit is judged as that phase angle mistake causes line loss abnormal not in 0-5% sections；Otherwise, step is skipped to
D；
D, line loss is without exception, and operation terminates.
The beneficial effects of the invention are as follows：The present invention to three-phase three-wire electric energy meter and three-phase and four-line electric energy meter by being acquired
Data analysis, pass through the line loss per unit section relevant parameter bar of qualification phase angular data, abnormal occurrence number, affiliated taiwan area or circuit
Part, data supporting is provided for field check personnel, can be filtered out due to electrical energy meter fault or people using the method in the present invention
For phase angle mistake caused by stealing etc., so as to judge whether it is that electric energy meter phase angle mistake causes line loss abnormal, significantly improve
The operating efficiency that line loss is administered, ensure that the accuracy of judgement.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of method in the present invention.
Embodiment
It is an important component in aggregation of data analysis platform to calculate analysis phase angle mistake, and aggregation of data analysis is flat
Platform is framed in power information acquisition system, sales service application system, the data mining on the electric energy system of critical point and analysis system
System.The gathered data provided using power information acquisition system and critical point electric energy system, with reference in sales service application system
Line becomes relation, becomes family relation, critical point and files on each of customers and operation flow modification information, by electric energy meter current voltage, collection
Equipment etc. is monitored on-line, comprehensive analysis and intelligent diagnostics, can position metering device failure accurately, in time, stealing triggers
Circuit, taiwan area line loss are abnormal, and metering device running status is monitored on-line, and raising business is ageing, reduce operating loss, reduce
Customer complaint risk.
The present invention relates to based on the abnormal method of electric energy meter phase angle false judgment line loss, this method is wrong in filtering collection
Critical point, the energy data of user, exclude due to the exceptional sample of harvester failure, exclude to exist and tear table open, change surface low journey by mistake
User data, it is abnormal and by checking user's shelves to exclude the phase angle caused by capacitance compensation is abnormal, cable capacitance is excessive
The metering method of electric energy meter, rated voltage electric current, the mode of connection in case information, exclude files on each of customers typing mistake the problem of base
Carried out on plinth, key point is that described method judges the abnormal judgement operation of line loss using the gathered data of electric energy meter.
Specific embodiment, as shown in figure 1, carrying out data inspection first and removing wrong data, then gathered for user
Data are analyzed, and are judged whether it is that data acquisition device breaks down, if there is failure, are then terminated sentencing for line loss exception
It is disconnected, if do not broken down, customer service flow and archives are checked, judge whether flow or archives problem, if it is,
Then terminate the abnormal judgement of line loss, if it is not, then carrying out electric energy meter phase angle mistake causes the abnormal judgement of line loss, judge to grasp
That makees comprises the following steps that：
A, if the gathered data of three-phase three-wire electric energy meter, then step B is skipped to；If three-phase and four-line electric energy meter is adopted
Collect data, then skip to step C；Otherwise, step D is skipped to；
B, electric energy meter gathered data is analyzed, if there is any one following situation：1. A, B phase voltages and A phases
The phase angle of electric current is less than 10 degree or more than 90 degree；2. C, the phase angle of B phase voltages and C phase currents is less than -50 degree or more than 30
Degree；And occurrence number more than 6 times in a consecutive days, while affiliated taiwan area line loss per unit is not in 0-9% sections or affiliated line
Route loss rate is judged as that phase angle mistake causes line loss abnormal not in 0-5% sections；Otherwise, step D is skipped to；Table 1 is
Using line loss abnormal user quantitative comparison's table under different judgement Parameter Conditions during to electric energy meter analysis of data collected；
Table 1
As shown in Table 1, impose a condition and be less than 0 degree or more than 95 degree for the phase angle of 1. A, B phase voltage and A phase currents；②
C, the phase angle of B phase voltages and C phase currents is less than -60 degree or during more than 35 degree, and it is more to filter out line loss abnormal user quantity, through existing
Field selective examination, it is found that wherein redundancy is more (i.e. actual is that line loss is normal), accuracy is low；Impose a condition as 1. A, B phase voltage and A
The phase angle of phase current is less than 10 degree or more than 95 degree；2. C, the phase angle of B phase voltages and C phase currents is less than -50 degree or is more than
At 35 degree, it is more to filter out line loss abnormal user quantity, through spot check, find wherein redundancy it is more (i.e. it is actual be line loss just
Often), accuracy is low；Impose a condition and be less than 10 degree or more than 90 degree for the phase angle of 1. A, B phase voltage and A phase currents；2. C, B phases
The phase angle of voltage and C phase currents is less than -50 degree or during more than 30 degree, and it is normal to filter out line loss abnormal user quantity, through scene
Selective examination, discovery are line loss abnormal user, and accuracy is high；
C, electric energy meter gathered data is analyzed, if there is any one following situation：1. A phase voltages and A phases electricity
The phase angle of stream is less than -20 degree or more than 60 degree；2. the phase angle of B phase voltages and B phase currents is less than -20 degree or more than 60 degree；
3. the phase angle of C phase voltages and C phase currents is less than -20 degree or more than 60 degree；And in a consecutive days occurrence number 6 times with
On, while affiliated taiwan area line loss per unit is not in 0-9% sections or affiliated circuit line loss per unit is not in 0-5% sections, that is, judges
Cause line loss abnormal for phase angle mistake；Otherwise, step D is skipped to；Table 2 is sentenced when being to electric energy meter analysis of data collected using difference
Line loss abnormal user quantitative comparison's table in the case of disconnected parameter；
Table 2
As shown in Table 2, impose a condition and be less than -30 degree or more than 65 degree for the phase angle of 1. A phase voltages and A phase currents；②B
The phase angle of phase voltage and B phase currents is less than -30 degree or more than 65 degree；3. C phase voltages and the phase angle of C phase currents are less than -30
Degree or during more than 65 degree, it is more to filter out line loss abnormal user taiwan area quantity, through spot check, it is found that wherein redundancy is more (i.e.
Actual is that line loss is normal), accuracy is low；Impose a condition and spend or be more than less than -30 for the phase angle of 1. A phase voltages and A phase currents
60 degree；2. the phase angle of B phase voltages and B phase currents is less than -30 degree or more than 60 degree；3. C phase voltages and the phase angle of C phase currents
Less than -30 degree or during more than 60 degree, it is more to filter out line loss abnormal user taiwan area quantity, through spot check, finds wherein redundancy
More (i.e. actual is that line loss is normal), accuracy is low；Impose a condition and be less than -20 degree for the phase angle of 1. A phase voltages and A phase currents
Or more than 60 degree；2. the phase angle of B phase voltages and B phase currents is less than -20 degree or more than 60 degree；3. C phase voltages and C phase currents
Phase angle is less than -20 degree or during more than 60 degree, and it is normal to filter out line loss abnormal user taiwan area quantity, through spot check, finds equal
It is high for line loss abnormal user taiwan area, accuracy；
D, line loss is without exception, and operation terminates.
Comprehensive analysis quickly can be carried out to electric energy meter phase angle mistake using the determination methods being related in the present invention, to phase
Parallactic angle is calculated, by multiple restriction bars such as the line loss per unit section of phase angle numerical value, abnormal occurrence number, affiliated taiwan area or circuit
Part can be filtered out precisely due to phase angle mistake caused by electrical energy meter fault or artificial stealing etc., for scene as basis for estimation
Inspection personnel provides strong data supporting, improves the operating efficiency of line loss improvement.
Claims (1)
1. based on the method that electric energy meter phase angle false judgment line loss is abnormal, this method is at the critical point of filtering collection mistake, used
The energy data at family, exclude due to the exceptional sample of harvester failure, exclude to exist and tear table open, change the user data of surface low journey,
It is abnormal and by checking electric energy in User Profile information to exclude the phase angle caused by capacitance compensation is abnormal, cable capacitance is excessive
Metering method, rated voltage electric current, the mode of connection of table, carried out on the basis of the problem of excluding files on each of customers typing mistake,
Characterized in that, described method judges the abnormal judgement operation of line loss, judgement operation step using the gathered data of electric energy meter
It is rapid as follows：
A, if the gathered data of three-phase three-wire electric energy meter, then step B is skipped to；If the collection number of three-phase and four-line electric energy meter
According to then skipping to step C；Otherwise, step D is skipped to；
B, electric energy meter gathered data is analyzed, if there is any one following situation：
1. A, the phase angle of B phase voltages and A phase currents is less than 10 degree or more than 90 degree；
2. C, the phase angle of B phase voltages and C phase currents is less than -50 degree or more than 30 degree；
Also, occurrence number more than 6 times in a consecutive days, while affiliated taiwan area line loss per unit is not in 0-9% sections or affiliated
Circuit line loss per unit is judged as that phase angle mistake causes line loss abnormal not in 0-5% sections；Otherwise, step D is skipped to；
C, electric energy meter gathered data is analyzed, if there is any one following situation：
1. the phase angle of A phase voltages and A phase currents is less than -20 degree or more than 60 degree；
2. the phase angle of B phase voltages and B phase currents is less than -20 degree or more than 60 degree；
3. the phase angle of C phase voltages and C phase currents is less than -20 degree or more than 60 degree；
Also, occurrence number more than 6 times in a consecutive days, while affiliated taiwan area line loss per unit is not in 0-9% sections or affiliated
Circuit line loss per unit is judged as that phase angle mistake causes line loss abnormal not in 0-5% sections；Otherwise, step D is skipped to；
D, line loss is without exception, and operation terminates.
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| CN201710825055.XA CN107817396B (en) | 2017-09-14 | 2017-09-14 | Method based on electric energy meter phase angle false judgment line loss exception |
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| CN201710825055.XA CN107817396B (en) | 2017-09-14 | 2017-09-14 | Method based on electric energy meter phase angle false judgment line loss exception |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113077359A (en) * | 2021-04-29 | 2021-07-06 | 广东电网有限责任公司梅州供电局 | Line loss abnormity troubleshooting method, device, equipment and storage medium |
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| JPS51129112A (en) * | 1975-05-02 | 1976-11-10 | Anritsu Corp | Transmission quality measuring device |
| CN102253359A (en) * | 2011-04-28 | 2011-11-23 | 深圳市锐能微科技有限公司 | Method and system for correcting false wiring of three-phase four-wire watt-hour meter and watt-hour meter |
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Cited By (2)
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| CN113077359A (en) * | 2021-04-29 | 2021-07-06 | 广东电网有限责任公司梅州供电局 | Line loss abnormity troubleshooting method, device, equipment and storage medium |
| CN113077359B (en) * | 2021-04-29 | 2023-10-24 | 广东电网有限责任公司梅州供电局 | Line loss abnormity investigation method, device, equipment and storage medium |
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