CN107132410A - 10kV circuits line loss per unit abnormal cause detection method and system - Google Patents
10kV circuits line loss per unit abnormal cause detection method and system Download PDFInfo
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- CN107132410A CN107132410A CN201710146133.3A CN201710146133A CN107132410A CN 107132410 A CN107132410 A CN 107132410A CN 201710146133 A CN201710146133 A CN 201710146133A CN 107132410 A CN107132410 A CN 107132410A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/006—Measuring power factor
Abstract
The present invention relates to a kind of 10kV circuits line loss per unit abnormal cause detection method and system, this method includes：The basic source data of the abnormal 10kV circuits of line loss per unit is obtained from distribution production system, metering automation system and marketing system；The abnormal 10kV circuits of line loss per unit are carried out respectively according to basic source data any one or more in analysis below：Measure monitor anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user CT saturation analysis, line footpath analysis and the stealing analysis of causes；The abnormal cause of the abnormal 10kV circuits of line loss per unit is shown on display interface according to analysis result.The present invention is collected by the data source to marketing management system, metering automation system and production system, the abnormal cause of the abnormal 10kV circuits of line loss per unit is analyzed and positioned with reference to various analysis, line loss administrative staff can be efficiently aided in carry out the more accurately abnormal lean level for judging, improving Controlling line loss.
Description
Technical field
The present invention relates to grid line loss analysis field, more particularly to a kind of 10kV circuits line loss per unit abnormal cause detection side
Method and system.
Background technology
Line loss is the general designation of power network comprehensive electric energy loss, is that enterprises of managing electric wire netting occur in electric energy transmitting procedure
Whole electric energy losses.Line losses indices are to weigh planning and designing, production run and the management level of power grid enterprises and integrate real
The core index of power, be and advanced level dialogue " International Language ".The height of line loss directly affects the economic benefit of enterprise,
Turn into the important breakthrough mouthful for improving effectiveness of operation, strengthening core competitiveness.The daily Controlling line loss of current power supply enterprise only according to
By scene inspection, personal experience and technical ability discriminatory analysis, not only inefficiency, and analysis mistake easily occur so that taking not
When reducing loss measure a series of problems, such as.
The content of the invention
The present invention provides a kind of 10kV circuits line loss per unit abnormal cause detection method and system, can be to 10kV circuit line losses per unit
Abnormal cause is analyzed and positioned, and efficiently aids in line loss administrative staff to carry out more accurately abnormal judgement, so as to improve line
Damage the lean level of management.
The embodiment of the present invention uses following technical scheme：
A kind of 10kV circuits line loss per unit abnormal cause detection method, comprises the following steps：
The abnormal 10kV circuits of line loss per unit are obtained from distribution production system, metering automation system and marketing system
Basic source data；
Carry out any one or many in analysis below to the abnormal 10kV circuits of line loss per unit respectively according to basic source data
：Measure monitor anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user CT saturation analysis, line footpath analysis and stealing reason
Analysis；
The abnormal cause of the abnormal 10kV circuits of line loss per unit is shown on display interface according to analysis result.
A kind of line loss per unit abnormal cause detecting system, including：
Acquisition module, it is different for obtaining line loss per unit from distribution production system, metering automation system and marketing system
The basic source data of normal 10kV circuits；
Analysis module, for being carried out respectively to the abnormal 10kV circuits of line loss per unit in analysis below according to basic source data
It is any one or more：Measure monitor anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user CT saturation analysis, line footpath point
Analysis and the stealing analysis of causes；
Display module, for showing that the exception of the abnormal 10kV circuits of line loss per unit is former on display interface according to analysis result
Cause.
The present invention is collected by the data source to marketing management system, metering automation system and production system, for going out
The abnormal 10kV circuits of existing line loss per unit, are analyzed and are positioned to line loss per unit abnormal cause with reference to various analysis, this side
Method is objective, true, can efficiently aid in line loss administrative staff to carry out more accurately abnormal judgement, so as to improve the essence of Controlling line loss
Beneficialization level.
Brief description of the drawings
Fig. 1 is the flow signal of the 10kV circuit line loss per unit abnormal causes detection method of the present invention in one embodiment
Figure；
Fig. 2 is the schematic diagram of display interface in the embodiment of the present invention；
Fig. 3 shows for the flow of 10kV circuits progress measure monitor anomaly analysis abnormal to line loss per unit in the embodiment of the present invention
It is intended to；
Fig. 4 is the schematic flow sheet that abnormal to line loss per unit 10kV circuits in the embodiment of the present invention carry out rate of load condensate analysis；
Fig. 5 illustrates for the flow of 10kV circuits progress Power Factor Analysis abnormal to line loss per unit in the embodiment of the present invention
Figure；
Fig. 6 illustrates for the flow of 10kV circuits progress user's CT saturation analysis abnormal to line loss per unit in the embodiment of the present invention
Figure；
Fig. 7 is the schematic flow sheet that abnormal to line loss per unit 10kV circuits in the embodiment of the present invention carry out line footpath analysis；
Fig. 8 illustrates for the flow of the 10kV circuits progress stealing analysis of causes abnormal to line loss per unit in the embodiment of the present invention
Figure；
Structural representations of the Fig. 9 for line loss per unit abnormal cause detecting system of the invention in one embodiment.
Embodiment
Present disclosure is described in further detail below in conjunction with preferred embodiment and accompanying drawing.Obviously, hereafter institute
The embodiment of description is only used for explaining the present invention, rather than limitation of the invention.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made, belongs to what the present invention was protected
Scope.
Although it should be appreciated that hereinafter describe various information using term " first ", " second " etc., these
Information should not necessarily be limited by these terms, and these terms are only used for same type of information being distinguished from each other out.For example, not departing from this
In the case of invention scope, " first " information can also be referred to as " second " information, similar, and " second " information can also be claimed
For " first " information.
It also should be noted that, for the ease of description, illustrate only in accompanying drawing part related to the present invention rather than
Full content.
Fig. 1 is the flow signal of the 10kV circuit line loss per unit abnormal causes detection method of the present invention in one embodiment
Figure, the line loss per unit abnormal cause detection method of the present embodiment can possess data processing by computer CPU, embedded controller etc.
The device of function is performed.As shown in figure 1, the 10kV circuit line loss per unit abnormal causes detection method in the present embodiment is including following
Step：
Step S11, obtains line loss per unit exception from distribution production system, metering automation system and marketing system
The basic source data of 10kV circuits；
Basic source data refers to the data related to line loss electricity and line loss per unit.In the present embodiment, data can be passed through
Interface exports basic source data from distribution production system, metering automation system and marketing system, passes through the elementary sources number
Detected, analyzed according to the abnormal cause to the abnormal 10kV circuits of line loss per unit.
Step S12, is carried out any in analysis below to the abnormal 10kV circuits of line loss per unit respectively according to basic source data
One or more：Measure monitor anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user CT saturation analysis, line footpath analysis and
The stealing analysis of causes；
, just can be using the abnormal 10kV circuits of line loss per unit as analysis object, by corresponding after basic source data is obtained
Basic source data implement analysis.In the present embodiment, analysis method includes measure monitor anomaly analysis, rate of load condensate analysis, work(
Rate factor analysis, user CT saturation analysis, line footpath analysis and the stealing analysis of causes in any one or more.Each analysis
Method can determine whether the abnormal 10kV circuits of line loss per unit have corresponding anomalous event.It is preferred that institute above can be combined
Some analysis methods perform an analysis come the 10kV circuits to line loss per unit exception, more accurately to position line loss per unit abnormal cause.
Wherein, measure monitor anomaly analysis is used to determine whether the abnormal 10kV circuits of line loss per unit occur electric energy meter and measure different
Ordinary affair part, such as event, metering anticlimax event are uprushed in metering, can be judged by analysis of history electric quantity data,
It can be judged using other method of the prior art.
Rate of load condensate is analyzed for determining whether the abnormal 10kV circuits of line loss per unit occur the too low event of rate of load condensate, can be passed through
Loss on transmission is analyzed with the ratio of circuit electricity sales amount to be judged, can also be sentenced using other method of the prior art
It is disconnected.
Power Factor Analysis is used to determine whether the abnormal 10kV circuits of line loss per unit occur the too low event of power factor, user
CT saturation analysis is used to determine whether the abnormal 10kV circuits of line loss per unit occur user's CT saturation events, and line footpath is analyzed for determining
Whether line footpath is too small for the abnormal 10kV circuits of line loss per unit, and the stealing analysis of causes is used to determine that the abnormal 10kV circuits institute of line loss per unit is right
Whether the special change user or public change user answered occurs stealing event.
Step S13, the abnormal cause of the abnormal 10kV circuits of line loss per unit is shown according to analysis result on display interface.
After one or more 10kV circuits abnormal to line loss per unit in by above-mentioned analysis method are analyzed, root
The abnormal cause of the abnormal 10kV circuits of line loss per unit is shown on display interface according to corresponding analysis result, for example：Pass through metering
Monitoring anomaly analysis determines that the abnormal 10kV circuits L1 of some line loss per unit occurs metering and uprushed event, passes through rate of load condensate analysis and determines
The too low event of rate of load condensate occurs for 10kV circuits L1, determines that power factor mistake occurs for 10kV circuits L1 by Power Factor Analysis
Low event, determines that user's CT saturation events occur for 10kV circuits L1 by user's CT saturation analysis, is analyzed and determined by line footpath
The 10kV circuit L1 line footpaths are too small, determine that stealing thing occurs for the special change user U1 on 10kV circuits L1 by the stealing analysis of causes
Part；Then shown in reference picture 2, it can show that the abnormal 10kV circuits L1 of line loss per unit exception is former on display interface according to analysis result
Because：Electric energy metrical is uprushed, rate of load condensate is too low, power factor is too low, it is too small to occur user's CT saturations events, line footpath and special is become
There is stealing suspicion in user U1.
Further, can be according to right when showing the abnormal cause of the abnormal 10kV circuits of line loss per unit according to analysis result
The priority orders of analysis method are answered to be shown.It is each analysis method setting priority, on display circle for example shown in Fig. 2
On face the abnormal cause corresponding to each analysis result is shown according to analysis method priority order from high to low.
The present invention is by collecting distribution production system, metering automation system and the basic source data of marketing system, to going out
The abnormal 10kV circuits of existing line loss per unit carry out abnormal cause positioning analysis, and this method treatment effeciency is high and objective, true,
Efficiently auxiliary line loss administrative staff carry out more accurately abnormal judgement, so as to improve the lean level of Controlling line loss.
Optionally, basic source data packet includes history electric quantity data corresponding to the abnormal 10kV circuits of line loss per unit and to be verified
Electric quantity data.A kind of method of specific measure monitor anomaly analysis is provided in the present embodiment.Shown in reference picture 3, to line loss
The process that the abnormal 10kV circuits of rate carry out measure monitor anomaly analysis comprises the following steps：
Step S31, four number evidences are divided into by history electric quantity data, and keep maximum of first number in be less than the
Minimum value of two numbers in, maximum of second number in is less than minimum value of the 3rd number in, and the 3rd number is in
Maximum be less than the 4th number according in minimum value；
Step S32, is handled according to following formula (1), (2), (3)：
IQR=Q3-Q1 (1)
Min=Q1-2IQR (2)
Max=Q3+2IQR (3)
Wherein, Q1For the average value of the first number evidence, Q2For the average value of the second number evidence, Q3For the flat of the 3rd number evidence
Average, Q4For the average value of the 4th number evidence, IQR, min and max be median in calculating process；
Step S33, judges whether electric quantity data to be verified is more than max, if so, then judging the abnormal 10kV lines of line loss per unit
Road occurs electric energy meter and measures event of uprushing, if it is not, then entering step S304；
Step S34, judges whether the electric quantity data to be verified is less than kmin, if so, then judging that line loss per unit is abnormal
10kV circuits occur electric energy meter metering anticlimax event.
Wherein, k is predetermined coefficient.Optionally, k values are 0.5.History electric quantity data can be the abnormal 10kV of line loss per unit
The electric quantity data of circuit in the month before, and the electric quantity data of one day of data to be verified then to be selected in this month.
It should be noted that the order of two judgment steps (step S303 and S303) can be exchanged, i.e., first judge to be tested
Whether the electric quantity data of card is less than kmin, then judges whether electric quantity data to be verified is more than max.
Optionally, basic source data packet includes the loss on transmission and specially of the common transformer corresponding to the abnormal 10kV circuits of line loss per unit
With the loss on transmission of transformer, include the electricity sales amount of the abnormal 10kV circuits of line loss per unit.A kind of specific pin is provided in the present embodiment
For the rate of load condensate analysis method of the abnormal 10kV circuits of line loss per unit, shown in reference picture 4, the abnormal 10kV circuits of line loss per unit are entered
The process of row rate of load condensate analysis comprises the following steps：
Step S41, calculates the loss on transmission sum W of the common transformer corresponding to the abnormal 10kV circuits of line loss per unitGWith it is special
The loss on transmission sum W of transformerZ；
Step S42, judges whether following conditional (4) meets, if so, then entering step S403；
(WG-WZ*a)/WS>b (4)
In formula (4), WGFor the loss on transmission sum of the common transformer corresponding to the abnormal 10kV circuits of line loss per unit, WZFor line loss
The loss on transmission sum of dedicated transformer corresponding to the abnormal 10kV circuits of rate, WSFor the sale of electricity of the abnormal 10kV circuits of line loss per unit
Amount, a and b are the parameter pre-set.
After experimental verification, it is preferred that it is 0.05 that a values, which are 0.98, b values,.
Step S43, judges that the too low event of rate of load condensate occurs for the abnormal 10kV circuits of line loss per unit.
Optionally, basic source data packet includes the abnormal 10kV circuits of line loss per unit each calculating week in the first setting time section
The total active energy and total capacity of idle power of phase.There is provided in the present embodiment a kind of 10kV circuit abnormal to line loss per unit carry out power because
The method of number analysis, shown in reference picture 5, this method comprises the following steps：
Step S61, the average power factor of each calculating cycle is calculated according to total active energy and total capacity of idle power；
Specifically, calculating average power factor by following expression (5)：
In formula (5), P is total active energy of current calculation cycle, and Q is total capacity of idle power of current calculation cycle,
For the average power factor of current calculation cycle.
Step S62, if the quantity for meeting the calculating cycle of first condition is more than the first setting number, judges that line loss per unit is different
The serious too low event of power factor occurs for normal 10kV circuits；
Wherein, first condition is that average power factor is less than first threshold.
Step S63, if the quantity for meeting the calculating cycle of first condition is less than the first setting number, and meets second condition
The quantity of calculating cycle be more than the first setting number, then judge that the abnormal 10kV circuits of line loss per unit occur to spend in power factor
Low event；
Wherein, second condition is that average power factor is less than Second Threshold, and Second Threshold is more than first threshold.
Step S64, if the quantity for meeting the calculating cycle of second condition is less than the first setting number, and meets third condition
The quantity of calculating cycle be more than the first setting number, then judge that the slight mistake of power factor occurs for the abnormal 10kV circuits of line loss per unit
Low event；
Wherein, third condition is that average power factor is less than the 3rd threshold value, and the 3rd threshold value is more than the Second Threshold.
Further, section could be arranged to one month between the first setting, and calculating cycle could be arranged to one day, therefore enter
During row Power Factor Analysis, on the basis of the data of one month, the power factor of every day is calculated.First setting number can be set
For 15 days, first threshold was set to 0.65, and Second Threshold is set to 0.75, and the 3rd threshold value is set to 0.85.
According to above step, calculating in one month after the power factor of every day, if having more than the power of 15 days because
Number is less than 0.65, then judges that the serious too low event of power factor occurs for the abnormal 10kV circuits of line loss per unit；If power factor is less than
0.65 number of days is less than 15 days, and the number of days that power factor is less than 0.75 is more than 15 days, then the abnormal 10kV circuits hair of line loss per unit
The too low event of raw power factor moderate；If the number of days that power factor is less than 0.75 is less than 15 days, and power factor is less than 0.85
Number of days was more than 15 days, then the slight too low event of power factor occurs for the abnormal 10kV circuits of line loss per unit.As can be seen here, the present embodiment
In Power Factor Analysis method, can not only analyze the abnormal 10kV circuits of line loss per unit too low with the presence or absence of power factor
Event, moreover it is possible to divide the order of severity of outgoing event.
Optionally, basic source data is additionally included in the second setting time section line loss per unit exception in each measurement period
The actual motion electric current and rated current of special change user current transformer corresponding to 10kV circuits.The present embodiment also provides one kind
The method for carrying out user's CT saturation analysis to the abnormal 10kV circuits of line loss per unit, shown in reference picture 6, this method includes following step
Suddenly：
Step S71 is right according to the 10kV circuits institute that line loss per unit in each measurement period in the second setting time section is abnormal
The actual motion electric current and rated current for the special change user current transformer answered, statistics meet the measurement period of default decision condition
Number；
Wherein, default decision condition is：The actual motion electricity for specially becoming user's current transformer occurs in the current statistic cycle
Event of the stream more than rated current.
Step S72, judges whether the number for meeting the measurement period of default decision condition is more than first threshold；If so, then
Into step S703；
Step S73, judges that user's CT saturation events occur for the abnormal 10kV circuits of line loss per unit.
Further, the second setting time section is it can also be provided that one month, and measurement period is set to one day.The present embodiment
It is middle to be compared judgement according to the actual motion electric current of dedicated transformer and the rated current of current transformer, real in one month
Total number of days that border running current exceedes the rated current of current transformer is used as a value criterion, the threshold of default setting first
It is worth for 15 days, i.e., when the actual motion electric current of dedicated transformer in one month exceedes total number of days of the rated current of current transformer
During more than 15 days, judge that user's CT saturation events occur for the abnormal 10kV circuits of line loss per unit.
Optionally, basic source data packet includes the actual measurement maximum current value and line security electricity of the abnormal 10kV circuits of line loss per unit
Flow valuve.A kind of method that 10kV circuit abnormal to line loss per unit carries out line footpath analysis is provided in the present embodiment, shown in reference picture 7,
This method includes：
Step S91, the line loss per unit exception is determined according to the ratio of actual measurement maximum current value and line security current value
The load factor of 10kV circuits；
Specifically, load factor can be determined according to following conditional：
In formula (6), Z is load factor, IMAXFor actual measurement maximum current value, IAFor line security current value.
Step S92, judges whether load factor is more than load factor threshold value, if so, then entering step S93；
Step S93, judges that the abnormal 10kV circuits of line loss per unit occur line footpath and cross mishap.
Optionally, basic source data packet includes the line loss per unit and line loss electricity of the abnormal 10kV circuits of line loss per unit, and line loss
Gong Biantai areas and the special power consumption for becoming user corresponding to the abnormal 10kV circuits of rate.The embodiment of the present invention also provides a kind of to line
The method that the abnormal 10kV circuits of loss rate carry out the stealing analysis of causes, shown in reference picture 8, this method includes：
Step S111, filters out the line loss per unit for meeting setting alternative condition from the set of the abnormal 10kV circuits of line loss per unit
Abnormal 10kV circuits；
Wherein, set alternative condition as：The line loss per unit of 10kV circuits is more than 0, and the 10kV circuits are in the Evaluation: Current cycle
Interior line loss per unit is more than the line loss per unit in a upper evaluation cycle.
Step S112, calculates the line loss incrementss of the 10kV circuits of each line loss per unit exception for meeting setting alternative condition；
Wherein, line loss incrementss are for line loss electricity of the 10kV circuits within the Evaluation: Current cycle and in a upper evaluation cycle
Line loss electricity difference.
Step S113, calculates the public change platform corresponding to the 10kV circuits of each line loss per unit exception for meeting setting alternative condition
Area and the electricity consumption difference for specially becoming user；
Wherein, electricity consumption difference is for Gong Biantai areas or the special power consumption for becoming user in a upper evaluation cycle and in Evaluation: Current
The difference of power consumption in cycle.
Step S114, calculates the public change platform corresponding to the 10kV circuits of each line loss per unit exception for meeting setting alternative condition
Area and it is special become user electricity consumption difference accounting；
Wherein, electricity consumption difference accounting is Gong Biantai areas or specially becomes the electricity consumption difference and the line of corresponding 10kV circuits of user
Damage the ratio of incrementss.
Step S115, judges whether electricity consumption difference accounting is more than standard accounting, if so, then entering step S116；
Wherein, standard accounting is the parameter being pre-configured with.
Step S116, judges the corresponding Gong Biantai areas of electricity consumption difference accounting or specially becomes user there is stealing suspicion.
In view of occurring if any stealing event, then it will be reduced based on the power consumption that Electro-metering device is counted.Therefore,
In order to improve data-handling efficiency, in the stealing analysis of causes method that the present embodiment is provided, electricity consumption difference can also calculated
Become user to Gong Biantai areas and specially before to screen, i.e., from the abnormal 10kV lines of the line loss per unit of each satisfaction setting alternative condition
In Gong Biantai areas and special change user corresponding to road, the Gong Biantai areas of power consumption decline and specially change user, and counting respectively are filtered out
Calculate Gong Biantai areas and the special electricity consumption difference for becoming user that power consumption declines.Wherein, power consumption declines Gong Biantai areas and specially become use
Family refers to the Gong Biantai areas for meeting following condition and specially becomes user：Gong Biantai areas specially become use of the user within the Evaluation: Current cycle
Electricity is less than the power consumption in a upper evaluation cycle.
By above stealing analysis of causes method, the Gong Biantai areas corresponding to the abnormal 10kV circuits of line loss per unit can be found out
Or specially become whether user has stealing suspicion, judge so that effectively auxiliary line loss administrative staff progress is more accurately abnormal, improve line
Damage the lean level of management.
It should be noted that for foregoing each method embodiment, for simplicity description, it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to
According to the present invention, some steps can use other orders or carry out simultaneously.
According to the 10kV circuit line loss per unit abnormal cause detection methods of the invention described above, the present invention also provides a kind of 10kV lines
Route loss rate abnormal cause detecting system, below in conjunction with the accompanying drawings and preferred embodiment is abnormal to the 10kV circuits line loss per unit of the present invention
Reason detecting system is described in detail.
Structural representations of the Fig. 9 for 10kV circuit line loss per unit abnormal causes detecting system of the invention in one embodiment
Figure.As shown in figure 9, the 10kV circuit line loss per unit abnormal cause detecting systems in the embodiment include：
Acquisition module 10, for obtaining line loss per unit from distribution production system, metering automation system and marketing system
The basic source data of abnormal 10kV circuits；
Analysis module 20, for being carried out respectively to the abnormal 10kV circuits of line loss per unit in analysis below according to basic source data
It is any one or more：Measure monitor anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user CT saturation analysis, line footpath
Analysis and the stealing analysis of causes；
Display module 30, the exception for showing the abnormal 10kV circuits of line loss per unit on display interface according to analysis result
Reason.
Specifically, acquisition module 10 can be by data-interface from distribution production system, metering automation system and battalion
Basic source data is obtained in pin system.After acquisition module 10 obtains basic source data, analysis module 20 just can be with line loss per unit
Abnormal 10kV circuits are implemented to analyze as analysis object by corresponding basic source data.In the present embodiment, analysis module
20 analysis methods used include measure monitor anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user CT saturations point
Analysis, line footpath analysis and the stealing analysis of causes in any one or more.Each analysis method can determine that line loss per unit is different
Whether normal 10kV circuits have corresponding anomalous event.It is preferred that analysis module 20 can combine analysis method all of the above
To be performed an analysis to the abnormal 10kV circuits of line loss per unit, more accurately to position line loss per unit abnormal cause.
Carried out in analysis module 20 by one or more 10kV circuits abnormal to line loss per unit in above-mentioned analysis method
After analysis, display module 30 shows the different of the abnormal 10kV circuits of line loss per unit according to corresponding analysis result on display interface
Normal reason, such as display module 30 is according to the showing interface abnormal cause shown in Fig. 2.
Further, the abnormal cause of the abnormal 10kV circuits of line loss per unit is shown according to analysis result in display module 30
When, it can be shown according to the priority orders of corresponding analysis method.For example, each analysis method setting priority, shows mould
Block 30 shows that the exception corresponding to each analysis result is former on display interface according to the order of analysis method priority from high to low
Cause.
In a kind of optional embodiment, basic source data packet includes the history corresponding to the abnormal 10kV circuits of line loss per unit
Electric quantity data and electric quantity data to be verified；Analysis module includes measure monitor anomaly analysis module, measure monitor anomaly analysis
Module includes：
Electric quantity data division module, for history electric quantity data to be divided into four number evidences, and keeps the first number in
Maximum be less than the second number according in minimum value, the second number according in maximum be less than the 3rd number according in minimum
Value, maximum of the 3rd number in is less than minimum value of the 4th number in；
Electric quantity data processing module, for being handled according to following formula：IQR=Q3-Q1, min=Q1-2IQR, max
=Q3+2IQR；Wherein Q1For the average value of the first number evidence, Q2For the average value of the second number evidence, Q3For the flat of the 3rd number evidence
Average, Q4For the average value of the 4th number evidence, IQR, min and max be median in calculating process；
Electric quantity data authentication module, for when electric quantity data to be verified is more than max, judging the abnormal 10kV of line loss per unit
Circuit occurs electric energy meter and measures event of flying away；When electric quantity data to be verified is less than kmin, line loss per unit exception is judged
Electric energy meter metering decrement event occurs for 10kV circuits；Wherein, k is predetermined coefficient.
Optionally, basic source data packet includes the loss on transmission and specially of the common transformer corresponding to the abnormal 10kV circuits of line loss per unit
With the loss on transmission of transformer, include the electricity sales amount of the abnormal 10kV circuits of line loss per unit；Analysis module is analyzed including line load rate
Module, line load rate analysis module includes：
Circuit loss on transmission difference calculating module, for calculating the common transformer corresponding to the 10kV circuits of line loss per unit exception
Loss on transmission sum WGWith the loss on transmission sum W of dedicated transformerZ；
The too low determination module of line load rate, for when following conditional is met, judging the abnormal 10kV lines of line loss per unit
The too low event of rate of load condensate occurs for road：
(WG-WZ*a)/WS>b
Wherein, WGFor the loss on transmission sum of the common transformer corresponding to the abnormal 10kV circuits of line loss per unit, WZIt is different for line loss per unit
The loss on transmission sum of dedicated transformer corresponding to normal 10kV circuits, WSFor the electricity sales amount of the abnormal 10kV circuits of line loss per unit, a and
B is the parameter pre-set.
Optionally, basic source data packet includes the abnormal 10kV circuits of line loss per unit each calculating week in the first setting time section
The total active energy and total capacity of idle power of phase, analysis module includes Power Factor Analysis module, and Power Factor Analysis module includes：
Average power factor computing module, for calculating each calculating cycle according to total active energy and total capacity of idle power
Average power factor；
The too low determination module of first power factor, for being set in the quantity for meeting the calculating cycle of first condition more than first
When determining number, judge that the serious too low event of power factor occurs for the abnormal 10kV circuits of line loss per unit；First condition is mean power
Factor is less than first threshold；
The too low determination module of second power factor, for being set in the quantity for meeting the calculating cycle of second condition less than first
When determining number, and meeting the quantity of the calculating cycle of second condition and be more than the first setting number, the abnormal 10kV of line loss per unit is judged
The too low event of power factor moderate occurs for circuit；Second condition is that average power factor is less than Second Threshold, and Second Threshold is big
In first threshold；
The 3rd too low determination module of power factor, for being set in the quantity for meeting the calculating cycle of second condition less than first
When determining number, and meeting the quantity of the calculating cycle of third condition and be more than the first setting number, the abnormal 10kV of line loss per unit is judged
The slight too low event of power factor occurs for circuit；Third condition is that average power factor is less than the 3rd threshold value, and the 3rd threshold value is big
In Second Threshold.
Optionally, basic source data packet includes the 10kV of the line loss per unit exception in each measurement period in the second setting time section
The actual motion electric current and rated current of special change user current transformer corresponding to circuit, analysis module include user's CT saturations
Analysis module, user's CT saturation analysis modules include：
Statistical module, for according to the abnormal 10kV circuits of line loss per unit in each measurement period in the second setting time section
The actual motion electric current and rated current of corresponding special change user current transformer, statistics meet the statistics of default decision condition
Whether the number in cycle is more than first threshold；Default decision condition is：Occur specially to become user's Current Mutual Inductance in the current statistic cycle
The actual motion electric current of device is more than the event of rated current；
User's CT saturation determination modules, for being more than first threshold in the number for the measurement period for meeting default decision condition
When, judge that user's CT saturation events occur for the abnormal 10kV circuits of line loss per unit.
Optionally, analysis module 20 also includes：
Line footpath analysis module, for carrying out line footpath analysis to the abnormal 10kV circuits of line loss per unit according to basic source data.
Optionally, basic source data packet includes the actual measurement maximum current value and line security electricity of the abnormal 10kV circuits of line loss per unit
Flow valuve；Line footpath analysis module includes：
Line load rate computing module, for determining line according to the ratio of actual measurement maximum current value and line security current value
The load factor of the abnormal 10kV circuits of loss rate；
The too small determination module of line footpath, for when load factor is more than load factor threshold value, judging the abnormal 10kV lines of line loss per unit
Road occurs line footpath and crosses mishap.
Optionally, basic source data packet includes the line loss per unit and line loss electricity of the abnormal 10kV circuits of line loss per unit, and line loss
Gong Biantai areas and the special power consumption for becoming user corresponding to the abnormal 10kV circuits of rate, analysis module include circuit stealing reason point
Module is analysed, circuit stealing analysis of causes module includes：
Anomalous line screening module, for filtering out satisfaction setting selection from the set of the abnormal 10kV circuits of line loss per unit
The abnormal 10kV circuits of the line loss per unit of condition；Set alternative condition as：The line loss per unit of 10kV circuits is more than 0, and the 10kV circuits
Line loss per unit within the Evaluation: Current cycle is more than the line loss per unit in a upper evaluation cycle；
Line loss incrementss computing module, the 10kV circuits for calculating each line loss per unit exception for meeting setting alternative condition
Line loss incrementss；Line loss incrementss are for line loss electricity of the 10kV circuits within the Evaluation: Current cycle and in a upper evaluation cycle
Line loss electricity difference；
Electricity consumption difference calculating module, the 10kV circuits institute for calculating each line loss per unit exception for meeting setting alternative condition
Corresponding Gong Biantai areas and the electricity consumption difference for specially becoming user；Electricity consumption difference is Gong Biantai areas or specially becomes user in a upper evaluation cycle
The difference of interior power consumption and the power consumption within the Evaluation: Current cycle；
Electricity consumption difference accounting computing module, the 10kV lines for calculating each line loss per unit exception for meeting setting alternative condition
Gong Biantai corresponding to road be area and the special electricity consumption difference accounting for becoming user；Electricity consumption difference accounting is Gong Biantai areas or specially becomes user
Electricity consumption difference and the line loss incrementss of corresponding 10kV circuits ratio；
Stealing event determination module, for when electricity consumption difference accounting is more than standard accounting, judging electricity consumption difference accounting pair
There is stealing suspicion in the Gong Biantai areas or special change user answered.
Wherein, standard accounting is the parameter being pre-configured with.
Specifically, evaluation cycle can be one month, i.e., evaluated with data monthly.
In view of occurring if any stealing event, then it will be reduced based on the power consumption that Electro-metering device is counted.Therefore,
In order to improve data-handling efficiency, in the circuit stealing analysis of causes module that the present embodiment is provided, user's sieve can also be included
Modeling block, is screened for becoming user to Gong Biantai areas and specially before electricity consumption difference is calculated, i.e., from each satisfaction setting choosing
In Gong Biantai areas and special change user corresponding to the 10kV circuits for the line loss per unit exception for selecting condition, screened by user's screening module
Go out power consumption decline Gong Biantai areas and specially become user, and calculate power consumption decline Gong Biantai areas and specially become user electricity consumption it is poor
Value.Wherein, power consumption declines Gong Biantai areas and specially change user refers to the Gong Biantai areas for meeting following condition and specially becomes user：It is public
Bian Tai areas specially become power consumption of the user within the Evaluation: Current cycle less than the power consumption in a upper evaluation cycle.
Above-mentioned 10kV circuits line loss per unit abnormal cause detecting system can perform the 10kV circuits that the embodiment of the present invention is provided
Line loss per unit abnormal cause detection method, possesses the corresponding functional module of execution method and beneficial effect, as wherein each function
Module realizes the specific method of its function, can refer to the description in above-mentioned line loss per unit abnormal cause detection method embodiment, herein
Repeat no more.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield, is all considered to be the scope of this specification record.
Above example only expresses the several embodiments of the present invention, and it describes more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art,
On the premise of not departing from present inventive concept, various modifications and improvements can be made, these belong to protection scope of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of 10kV circuits line loss per unit abnormal cause detection method, it is characterised in that comprise the following steps：
The basis of the abnormal 10kV circuits of line loss per unit is obtained from distribution production system, metering automation system and marketing system
Source data；
The abnormal 10kV circuits of line loss per unit are carried out respectively according to basic source data any one or more in analysis below：Meter
Amount monitoring anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user CT saturation analysis, line footpath analysis and the stealing analysis of causes；
The abnormal cause of the abnormal 10kV circuits of line loss per unit is shown on display interface according to analysis result.
2. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, it is characterised in that the elementary sources
Data include the history electric quantity data and electric quantity data to be verified corresponding to the abnormal 10kV circuits of the line loss per unit；
The process that the abnormal 10kV circuits of line loss per unit carry out measure monitor anomaly analysis is comprised the following steps：
The history electric quantity data is divided into four number evidences, and keeps maximum of first number in be less than the second number evidence
In minimum value, the second number according in maximum be less than the 3rd number according in minimum value, the 3rd number according in maximum
Less than minimum value of the 4th number in；
Handled according to following formula：IQR=Q3-Q1, min=Q1-2IQR, max=Q3+2IQR；Wherein Q1For the first number
According to average value, Q2For the average value of the second number evidence, Q3For the average value of the 3rd number evidence, Q4For being averaged for the 4th number evidence
Value, IQR, min and max be median in calculating process；
If the electric quantity data to be verified is more than max, judge that electric energy meter occurs for the abnormal 10kV circuits of the line loss per unit
Event of uprushing is measured, if the electric quantity data to be verified is less than kmin, the abnormal 10kV circuits hair of the line loss per unit is judged
Raw electric energy meter metering anticlimax event；Wherein, k is predetermined coefficient.
3. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, it is characterised in that the elementary sources
Data include the loss on transmission and the loss on transmission of dedicated transformer of the common transformer corresponding to the abnormal 10kV circuits of the line loss per unit, also
Include the electricity sales amount of the abnormal 10kV circuits of the line loss per unit；
The process that the abnormal 10kV circuits of line loss per unit carry out rate of load condensate analysis is comprised the following steps：
Calculate the loss on transmission sum W of the common transformer corresponding to the abnormal 10kV circuits of the line loss per unitGWith the change of dedicated transformer
Damage sum WZ；
If following conditional is met, judge that the too low event of rate of load condensate occurs for the abnormal 10kV circuits of the line loss per unit：
(WG-WZ*a)/WS>b
Wherein, WGFor the loss on transmission sum of the common transformer corresponding to the abnormal 10kV circuits of the line loss per unit, WZFor the line loss
The loss on transmission sum of dedicated transformer corresponding to the abnormal 10kV circuits of rate, WSFor selling for the abnormal 10kV circuits of the line loss per unit
Electricity, a and b are the parameter pre-set.
4. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, it is characterised in that the elementary sources
Data include the abnormal 10kV circuits of the line loss per unit in the first setting time section total active energy of each calculating cycle and
Total capacity of idle power；
The process that the abnormal 10kV circuits of line loss per unit carry out Power Factor Analysis is comprised the following steps：
The average power factor of each calculating cycle is calculated according to total active energy and total capacity of idle power；
If the quantity for meeting the calculating cycle of first condition is more than the first setting number, the abnormal 10kV of the line loss per unit is judged
The serious too low event of power factor occurs for circuit；The first condition is that average power factor is less than first threshold；
If the quantity of the calculating cycle of first condition is met less than the first setting number, and meet the calculating cycle of second condition
Quantity is more than the first setting number, then judges that the too low event of power factor moderate occurs for the abnormal 10kV circuits of the line loss per unit；
The second condition is that average power factor is less than Second Threshold, and the Second Threshold is more than the first threshold；
If the quantity of the calculating cycle of second condition is met less than the first setting number, and meet the calculating cycle of third condition
Quantity is more than the first setting number, then judges that the slight too low event of power factor occurs for the abnormal 10kV circuits of the line loss per unit；
The third condition is that average power factor is less than the 3rd threshold value, and the 3rd threshold value is more than the Second Threshold.
5. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, it is characterised in that the elementary sources
Data are included in the second setting time section the special change corresponding to the abnormal 10kV circuits of line loss per unit described in each measurement period
The actual motion electric current and rated current of user's current transformer；
The process that the abnormal 10kV circuits of line loss per unit carry out user's CT saturation analysis is included respectively according to basic source data following
Step：
Special change according to each measurement period in the second setting time section corresponding to the abnormal 10kV circuits of line loss per unit
The actual motion electric current and rated current of user's current transformer, statistics meet the number of the measurement period of default decision condition；
The default decision condition is：The actual motion electric current for specially becoming user's current transformer occurs in the current statistic cycle more than specified
The event of electric current；
If the number for meeting the measurement period of the default decision condition is more than the first threshold, judge that the line loss per unit is different
User's CT saturation events occur for normal 10kV circuits.
6. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, it is characterised in that the elementary sources
Data include the actual measurement maximum current value and line security current value of the abnormal 10kV circuits of the line loss per unit；According to the basis
The process that source data carries out line footpath analysis to the abnormal 10kV circuits of the line loss per unit includes：
The abnormal 10kV of the line loss per unit is determined according to the ratio of the actual measurement maximum current value and the line security current value
The load factor of circuit；
If the load factor is more than load factor threshold value, judge that the abnormal 10kV circuits of the line loss per unit occur line footpath and cross minor matter
Part.
7. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, it is characterised in that the elementary sources
Data include the line loss per unit and line loss electricity of the abnormal 10kV circuits of line loss per unit, and corresponding to the abnormal 10kV circuits of line loss per unit
Gong Biantai areas and specially become user power consumption；
Included according to the process that basic source data carries out the stealing analysis of causes to the abnormal 10kV circuits of line loss per unit：
Filtered out from the set of the abnormal 10kV circuits of the line loss per unit and meet the line loss per unit exception for setting alternative condition
10kV circuits；It is described set alternative condition as：The line loss per unit of 10kV circuits is more than 0, and the 10kV circuits are in the Evaluation: Current cycle
Interior line loss per unit is more than the line loss per unit in a upper evaluation cycle；
Calculate the line loss incrementss of the 10kV circuits of each line loss per unit exception for meeting the setting alternative condition；The line loss increases
Dosage is the difference of line loss electricity of the 10kV circuits within the Evaluation: Current cycle and the line loss electricity in a upper evaluation cycle；
Calculate the Gong Biantai areas corresponding to the 10kV circuits of each line loss per unit exception for meeting the setting alternative condition and specially change
The electricity consumption difference of user；The electricity consumption difference is Gong Biantai areas or specially becomes power consumption of the user in a upper evaluation cycle with working as
The difference of power consumption in preceding evaluation cycle；
Calculate Gong Biantai corresponding to the abnormal 10kV circuits of line loss per unit that each meets the setting alternative condition area and special
Become the electricity consumption difference accounting of user；The electricity consumption difference accounting is Gong Biantai areas or the special electricity consumption difference for becoming user and corresponding
The ratio of the line loss incrementss of 10kV circuits；
If the electricity consumption difference accounting is more than standard accounting, judges the corresponding Gong Biantai areas of the electricity consumption difference accounting or specially become
There is stealing suspicion in user.
8. a kind of 10kV circuits line loss per unit abnormal cause detecting system, it is characterised in that including：
Acquisition module, for obtaining line loss per unit exception from distribution production system, metering automation system and marketing system
The basic source data of 10kV circuits；
Analysis module, it is any in analysis below for being carried out respectively to the abnormal 10kV circuits of line loss per unit according to basic source data
One or more：Measure monitor anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user CT saturation analysis, line footpath analysis and
The stealing analysis of causes；
Display module, the abnormal cause for showing the abnormal 10kV circuits of line loss per unit on display interface according to analysis result.
9. 10kV circuits line loss per unit abnormal cause detecting system according to claim 8, it is characterised in that the elementary sources
Data include the abnormal 10kV circuits of the line loss per unit in the first setting time section total active energy of each calculating cycle and
Total capacity of idle power, the analysis module includes Power Factor Analysis module, and the Power Factor Analysis module includes：
Average power factor computing module, for calculating each calculating cycle according to total active energy and total capacity of idle power
Average power factor；
The too low determination module of first power factor, for being more than the first setting in the quantity for meeting the calculating cycle of first condition
During number, judge that the serious too low event of power factor occurs for the abnormal 10kV circuits of the line loss per unit；The first condition is average
Power factor is less than first threshold；
The too low determination module of second power factor, for being less than the first setting in the quantity for meeting the calculating cycle of second condition
Number, and when meeting the quantity of the calculating cycle of second condition and being more than the first setting number, judge the abnormal 10kV of the line loss per unit
The too low event of power factor moderate occurs for circuit；The second condition is that average power factor is less than Second Threshold, and described the
Two threshold values are more than the first threshold；
The 3rd too low determination module of power factor, for being less than the first setting in the quantity for meeting the calculating cycle of second condition
Number, and when meeting the quantity of the calculating cycle of third condition and being more than the first setting number, judge the abnormal 10kV of the line loss per unit
The slight too low event of power factor occurs for circuit；The third condition is that average power factor is less than the 3rd threshold value, and described the
Three threshold values are more than the Second Threshold.
10. 10kV circuit line loss per unit abnormal cause detecting systems according to claim 8 or claim 9, it is characterised in that the base
Plinth source data includes the line loss per unit and line loss electricity of the abnormal 10kV circuits of line loss per unit, and the abnormal 10kV circuits institute of line loss per unit
Corresponding Gong Biantai areas and the power consumption for specially becoming user, the analysis module include circuit stealing analysis of causes module, the line
Road stealing analysis of causes module includes：
Anomalous line screening module, for filtering out satisfaction setting selection from the set of the abnormal 10kV circuits of the line loss per unit
The abnormal 10kV circuits of the line loss per unit of condition；It is described set alternative condition as：The line loss per unit of 10kV circuits is more than 0, and the 10kV
Line loss per unit of the circuit within the Evaluation: Current cycle is more than the line loss per unit in a upper evaluation cycle；
Line loss incrementss computing module, the 10kV circuits for calculating each line loss per unit exception for meeting the setting alternative condition
Line loss incrementss；The line loss incrementss are for line loss per unit of the 10kV circuits within the Evaluation: Current cycle and in a upper evaluation cycle
The difference of interior line loss electricity；
Electricity consumption difference calculating module, the 10kV circuits institute for calculating each line loss per unit exception for meeting the setting alternative condition
Corresponding Gong Biantai areas and the electricity consumption difference for specially becoming user；The electricity consumption difference is Gong Biantai areas or specially becomes user in upper one evaluation
The difference of power consumption and the power consumption within the Evaluation: Current cycle in cycle；
Electricity consumption difference accounting computing module, the 10kV lines for calculating each line loss per unit exception for meeting the setting alternative condition
Gong Biantai corresponding to road be area and the special electricity consumption difference accounting for becoming user；The electricity consumption difference accounting is Gong Biantai areas or specially become
The ratio of the electricity consumption difference of user and the line loss incrementss of corresponding 10kV circuits；
Stealing event determination module, for when the electricity consumption difference accounting is more than standard accounting, judging that the electricity consumption difference is accounted for
Than corresponding Gong Biantai areas or specially become user and occur stealing event.
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