CN107132410B - 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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- CN107132410B CN107132410B CN201710146133.3A CN201710146133A CN107132410B CN 107132410 B CN107132410 B CN 107132410B CN 201710146133 A CN201710146133 A CN 201710146133A CN 107132410 B CN107132410 B CN 107132410B
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R21/006—Measuring power factor
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Abstract
The present invention relates to a kind of 10kV circuits line loss per unit abnormal cause detection methods and system, this method to include：The basic source data of the 10kV circuits of line loss per unit exception is obtained from distribution production system, metering automation system and marketing system；The 10kV circuits of line loss per unit exception are carried out respectively according to basic source data any one or more in following analysis：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 10kV circuits of line loss per unit exception is shown on display interface according to analysis result.The present invention passes through the data source collection to marketing management system, metering automation system and production system, the abnormal cause of the 10kV circuits of line loss per unit exception is analyzed and positioned in conjunction with various analysis, line loss administrative staff can be efficiently assisted to carry out more accurately abnormal judgement, the lean for improving Controlling line loss is horizontal.
Description
Technical field
The present invention relates to grid line loss analysis fields, 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 are occurred in electric energy transmission process
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 is talked with " International Language " with advanced level.The height of line loss directly affects the economic benefit of enterprise,
Have become the important breakthrough mouth for improving effectiveness of operation, strengthening core competitiveness.At present the daily Controlling line loss of power supply enterprise only according to
By scene inspection, personal experience and technical ability discriminatory analysis, not only inefficiency, but also analysis mistake is susceptible to so that taking not
When reducing loss measure a series of problems, such as.
Invention content
A kind of 10kV circuits line loss per unit abnormal cause detection method of present invention offer and system, can be to 10kV circuit line losses per unit
Abnormal cause is analyzed and is positioned, and efficiently assists line loss administrative staff to carry out more accurately abnormal judgement, to improve line
The lean for damaging management is horizontal.
The embodiment of the present invention uses following technical scheme：
A kind of 10kV circuits line loss per unit abnormal cause detection method, includes the following steps：
The 10kV circuits of line loss per unit exception are obtained from distribution production system, metering automation system and marketing system
Basic source data；
Carry out any one or more in following analysis to the 10kV circuits of line loss per unit exception 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 10kV circuits of line loss per unit exception 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 in following analysis to the 10kV circuits of line loss per unit exception respectively 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 10kV circuits of line loss per unit exception is former on display interface according to analysis result
Cause.
The present invention is by the collection of the data source of marketing management system, metering automation system and production system, for going out
The 10kV circuits of existing line loss per unit exception, are analyzed and are positioned to line loss per unit abnormal cause in conjunction with various analysis, this side
Method is objective, true, can efficiently assist line loss administrative staff to carry out more accurately abnormal judgement, to improve the essence of Controlling line loss
Benefitization is horizontal.
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 is that the flow of the 10kV circuits progress measure monitor anomaly analysis to line loss per unit exception in the embodiment of the present invention is shown
It is intended to；
Fig. 4 is the flow diagram of the 10kV circuits progress rate of load condensate analysis to line loss per unit exception in the embodiment of the present invention；
Fig. 5 is that the flow of the 10kV circuits progress Power Factor Analysis to line loss per unit exception in the embodiment of the present invention is illustrated
Figure；
Fig. 6 is that the flow of 10kV circuits progress user's CT saturation analysis to line loss per unit exception in the embodiment of the present invention is illustrated
Figure；
Fig. 7 is the flow diagram of the 10kV circuits progress line footpath analysis to line loss per unit exception in the embodiment of the present invention；
Fig. 8 is that the flow of the 10kV circuits progress stealing analysis of causes to line loss per unit exception in the embodiment of the present invention is illustrated
Figure；
Fig. 9 is the structural schematic diagram of the line loss per unit abnormal cause detecting system of the present invention in one embodiment.
Specific implementation mode
Present disclosure is described in further detail below in conjunction with preferred embodiment and attached 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 embodiments of the present invention, this field is general
The every other embodiment that logical technical staff is obtained without making creative work belongs to what the present invention protected
Range.
It should be understood that although hereinafter describing various information using term " first ", " second " etc., these
Information should not necessarily be limited by these terms, 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 only the parts related to the present invention are shown for ease of description, in attached drawing 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 have data processing by computer CPU, embedded controller etc.
The device of function executes.As shown in Figure 1, the 10kV circuit line loss per unit abnormal cause detection methods in the present embodiment include 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 and line loss electricity and the relevant data of 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
It is detected, analyzes according to the abnormal cause of the 10kV circuits to line loss per unit exception.
Step S12 respectively carries out the 10kV circuits of line loss per unit exception according to basic source data arbitrary in following analysis
It is 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；
After obtaining basic source data, can line loss per unit exception 10kV circuits as object is analyzed, by corresponding
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 10kV circuits of line loss per unit exception have corresponding anomalous event.Preferably, can be in conjunction with institute above
Some analysis methods perform an analysis to the 10kV circuits of line loss per unit exception, more accurately to position line loss per unit abnormal cause.
Wherein, measure monitor anomaly analysis is for determining it is different whether the 10kV circuits of line loss per unit exception occur electric energy meter metering
Ordinary affair part, such as measure event of uprushing, metering anticlimax event etc., it can be judged by analysis of history electricity data,
Other methods in the prior art may be used to be judged.
Rate of load condensate analysis can pass through for determining whether the 10kV circuits of line loss per unit exception occur the too low event of rate of load condensate
The ratio of analysis loss on transmission and circuit electricity sales amount is judged, can also be sentenced using other methods in the prior art
It is disconnected.
Power Factor Analysis is for determining whether the 10kV circuits of line loss per unit exception occur the too low event of power factor, user
CT saturation analysis for determining whether the 10kV circuits of line loss per unit exception occur user's CT saturation events, analyze for determining by line footpath
Whether line footpath is too small for the 10kV circuits of line loss per unit exception, and the stealing analysis of causes is used to determine that the 10kV circuits institute of line loss per unit exception to be right
Whether the special change user or public change user answered occurs stealing event.
Step S13 shows the abnormal cause of the 10kV circuits of line loss per unit exception according to analysis result on display interface.
After being analyzed by one or more 10kV circuits to line loss per unit exception in above-mentioned analysis method, root
The abnormal cause of the 10kV circuits of line loss per unit exception is shown on display interface according to corresponding analysis result, such as：Pass through metering
Monitoring anomaly analysis determines that the 10kV circuits L1 of some line loss per unit exception occurs to measure event of uprushing, and passes through rate of load condensate and analyzes determination
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 10kV circuits L1 occurs user CT and is saturated event 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 with reference to shown in Fig. 2, it can show that the exception of the 10kV circuits L1 of line loss per unit exception is former on display interface according to analysis result
Because：Electrical energy measurement is uprushed, rate of load condensate is too low, power factor is too low, user CT saturation event, line footpath occurs too small and special change
There are stealing suspicion by user U1.
It further, can be according to right when showing the abnormal cause of 10kV circuits of line loss per unit exception according to analysis result
The priority orders of analysis method are answered to be shown.Such as shown in Fig. 2, priority is set for each analysis method, on display circle
The abnormal cause corresponding to each analysis result is shown according to the sequence of analysis method priority from high to low on face.
The present invention is by collecting distribution production system, the basic source data of metering automation system and marketing system, to going out
The 10kV circuits of existing line loss per unit exception 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, to which the lean for improving Controlling line loss is horizontal.
Optionally, basic source data packet includes history electricity data corresponding to the 10kV circuits of line loss per unit exception and to be verified
Electricity data.A kind of method of specific measure monitor anomaly analysis is provided in the present embodiment.With reference to shown in Fig. 3, to line loss
The process that the 10kV circuits of rate exception carry out measure monitor anomaly analysis includes the following steps：
History electricity data is divided into four parts of data by step S31, and the maximum value in first part of data is kept to be less than the
Minimum value in two parts of data, the maximum value in second part of data are less than the minimum value in third part data, in third part data
Maximum value be less than the minimum value in the 4th part of data；
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 first part of data, Q2For the average value of second part of data, Q3For the flat of third part data
Mean value, Q4For the average value of the 4th part of data, IQR, min and max be median in calculating process；
Step S33, judges whether electricity data to be verified is more than max, if so, the 10kV lines of judgement line loss per unit exception
Road occurs electric energy meter and measures event of uprushing, if it is not, then entering step S304；
Step S34, judges whether the electricity data to be verified is less than kmin, if so, judgement line loss per unit is abnormal
10kV circuits occur electric energy meter measure anticlimax event.
Wherein, k is predetermined coefficient.Optionally, k values are 0.5.History electricity data can be the 10kV of line loss per unit exception
The electricity data of circuit in the month before, and data to be verified are then one day electricity data being selected in this month.
It should be noted that the sequence of two judgment steps (step S303 and S303) can be interchanged, i.e., first judge to be tested
Whether the electricity data of card is less than kmin, then judges whether electricity data to be verified is more than max.
Optionally, basic source data packet include the common transformer corresponding to the 10kV circuits of line loss per unit exception loss on transmission and specially
Further include the electricity sales amount of the 10kV circuits of line loss per unit exception with the loss on transmission of transformer.A kind of specific needle is provided in the present embodiment
For the rate of load condensate analysis method of the 10kV circuits of line loss per unit exception, with reference to shown in Fig. 4, to the 10kV circuits of line loss per unit exception into
The process of row rate of load condensate analysis includes the following steps：
Step S41 calculates the sum of the loss on transmission of common transformer corresponding to the 10kV circuits of line loss per unit exception WGWith it is special
The sum of loss on transmission of transformer WZ；
Step S42, judges whether the following conditions formula (4) meets, if so, entering step S403；
(WG-WZ*a)/WS>b (4)
In formula (4), WGThe sum of the loss on transmission of common transformer corresponding to 10kV circuits for line loss per unit exception, WZFor line loss
The sum of the loss on transmission of dedicated transformer corresponding to the 10kV circuits of rate exception, WSFor the sale of electricity of the 10kV circuits of line loss per unit exception
Amount, a and b are pre-set parameter.
After experimental verification, preferably, it is 0.05 that a values, which are 0.98, b values,.
The too low event of rate of load condensate occurs for the 10kV circuits of step S43, judgement line loss per unit exception.
Optionally, basic source data packet includes the 10kV circuits of line loss per unit exception each calculating week in the first set period of time
The total active energy and total capacity of idle power of phase.There is provided in the present embodiment a kind of 10kV circuits to line loss per unit exception carry out power because
The method of number analysis, referring to Figure 5, this method comprises the following steps：
Step S61 calculates the average power factor of each calculating cycle 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 judges that line loss per unit is different if the quantity for meeting the calculating cycle of first condition is more than the first setting number
Power factor seriously too low event 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
Calculating cycle quantity be more than first setting number, then judge line loss per unit exception 10kV circuits generation power factor in spend
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
Calculating cycle quantity be more than first setting number, then judge line loss per unit exception 10kV circuits generation the slight mistake of power factor
Low event；
Wherein, third condition is that average power factor is less than third threshold value, and third threshold value is more than the second threshold.
Further, first setting between section could be provided as one month, calculating cycle could be provided as one day, thus into
When row Power Factor Analysis, on the basis of one month data, the power factor of every day is calculated.First setting number can be arranged
It it is 15 days, first threshold is set as 0.65, and second threshold is set as 0.75, and third threshold value is set as 0.85.
According to above step, calculating in one month after the power factor of every day, if having more than 15 days power because
Number is less than 0.65, then judges that power factor seriously too low event occurs for the 10kV circuits of line loss per unit exception；If power factor is less than
0.65 number of days be less than 15 days, and power factor less than 0.75 number of days be more than 15 days, then line loss per unit exception 10kV circuits send out
The too low event of raw power factor moderate；If number of days of the power factor 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 power factor slightly too low event occurs for the 10kV circuits of line loss per unit exception.It can be seen that the present embodiment
In Power Factor Analysis method, it is too low with the presence or absence of power factor can not only to analyze the 10kV circuits of line loss per unit exception
Event, moreover it is possible to divide the severity of outgoing event.
Optionally, basic source data further includes that line loss per unit is abnormal in each measurement period in the second set period of time
The special actual motion electric current and rated current for becoming user's current transformer corresponding to 10kV circuits.The present embodiment also provides one kind
To the method that the 10kV circuits of line loss per unit exception carry out user's CT saturation analysis, with reference to shown in Fig. 6, this method includes following step
Suddenly：
Step S71, the 10kV circuits institute according to line loss per unit exception in each measurement period in the second set period of time are right
The special actual motion electric current and rated current for becoming user's current transformer answered, statistics meet the measurement period for presetting decision condition
Number；
Wherein, default decision condition is：The actual motion for occurring specially to become user's current transformer in the current statistic period is electric
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,
Enter step S703；
Step S73, the 10kV circuits of judgement line loss per unit exception occur user CT and are saturated event.
Further, the second set period of time may be set to be one month, and measurement period is set as one day.The present embodiment
The middle actual motion electric current according to dedicated transformer is compared judgement with the rated current of current transformer, real in one month
Border running current is more than total number of days of the rated current of current transformer as a magnitude criterion, the first threshold of default setting
Value is 15 days, i.e., when the actual motion electric current of dedicated transformer in one month is more than total number of days of the rated current of current transformer
When more than 15 days, the 10kV circuits of judgement line loss per unit exception occur user CT and are saturated event.
Optionally, basic source data packet includes the actual measurement maximum current value and line security electricity of the 10kV circuits of line loss per unit exception
Flow valuve.A kind of method that the 10kV circuits to line loss per unit exception carry out line footpath analysis is provided in the present embodiment, with reference to shown in Fig. 7,
This method includes：
Step S91 determines the line loss per unit exception 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 the following conditions formula：
In formula (6), Z is load factor, IMAXTo survey maximum current value, IAFor line security current value.
Step S92, judges whether load factor is more than load factor threshold value, if so, entering step S93；
Step S93, the 10kV circuits of judgement line loss per unit exception occur line footpath and cross mishap.
Optionally, basic source data packet includes the line loss per unit and line loss electricity and line loss of the 10kV circuits of line loss per unit exception
The public electricity consumption for becoming taiwan area and specially become user corresponding to the 10kV circuits of rate exception.The embodiment of the present invention also provides a kind of to line
The method that the 10kV circuits of loss rate exception carry out the stealing analysis of causes, with reference to shown in Fig. 8, this method includes：
Step S111 filters out the line loss per unit for meeting setting alternative condition from the set of the 10kV circuits of line loss per unit exception
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 period
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 period 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 becomes taiwan area or the special electricity consumption for becoming user in a upper evaluation cycle and in Evaluation: Current to be public
The difference of electricity consumption in period.
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 the line of the public electricity consumption difference and corresponding 10kV circuits for becoming taiwan area or specially becoming user
Damage the ratio of incrementss.
Step S115, judges whether electricity consumption difference accounting is more than standard accounting, if so, entering step S116；
Wherein, standard accounting is preconfigured parameter.
Step S116, there are stealing suspicion by the corresponding public change taiwan area of judgement electricity consumption difference accounting or special change user.
In view of occurring if any stealing event, then will be reduced based on the electricity consumption that Electro-metering device is counted.Therefore,
In order to improve data-handling efficiency, in stealing analysis of causes method provided in this embodiment, electricity consumption difference can also calculated
Taiwan area is become to public affairs before and specially becomes user and is screened, is i.e. the 10kV lines from each line loss per unit exception for meeting setting alternative condition
For the public taiwan area that becomes corresponding to road in special change user, the public change taiwan area for filtering out electricity consumption decline becomes user with special, and counts respectively
Calculate the public electricity consumption difference for becoming taiwan area and specially become user that electricity consumption declines.Wherein, the public change taiwan area and special become that electricity consumption declines are used
Family refers to meeting the public of following condition to become taiwan area and specially become user：Public affairs become taiwan area or specially become use of the user within the Evaluation: Current period
Electricity is less than the electricity consumption in a upper evaluation cycle.
By the above stealing analysis of causes method, the public change taiwan area corresponding to the 10kV circuits of line loss per unit exception can be found out
Or specially become whether user has stealing suspicion, judge to which effectively auxiliary line loss administrative staff progress is more accurately abnormal, improves line
The lean for damaging management is horizontal.
It should be noted that for each method embodiment above-mentioned, describes, be all expressed as a series of for simplicity
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the described action sequence, because according to
According to the present invention, certain steps may be used other sequences or be carried out at the same time.
According to the 10kV circuit line loss per unit abnormal cause detection methods of aforementioned present invention, 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.
Fig. 9 is the structural representation of the 10kV circuit line loss per unit abnormal causes detecting system of the present 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 in following analysis to the 10kV circuits of line loss per unit exception respectively 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 of the 10kV circuits for showing line loss per unit exception 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 can line loss per unit
Abnormal 10kV circuits implement analysis as analysis object, by corresponding basic source data.In the present embodiment, analysis module
Analysis method used by 20 includes measure monitor anomaly analysis, rate of load condensate analysis, Power Factor Analysis, user's 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.Preferably, analysis module 20 can combine analysis method all of the above
It performs an analysis to the 10kV circuits of line loss per unit exception, more accurately to position line loss per unit abnormal cause.
It is carried out by one or more 10kV circuits to line loss per unit exception in above-mentioned analysis method in analysis module 20
After analysis, display module 30 shows the different of the 10kV circuits of line loss per unit exception according to corresponding analysis result on display interface
Normal reason, such as display module 30 is according to showing interface abnormal cause shown in Fig. 2.
Further, the abnormal cause of the 10kV circuits of line loss per unit exception 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 sets priority, shows mould
Block 30 shows that the exception corresponding to each analysis result is former on display interface according to the sequence 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 10kV circuits of line loss per unit exception
Electricity data and electricity data to be verified；Analysis module includes measure monitor anomaly analysis module, measure monitor anomaly analysis
Module includes：
Electricity data division module for history electricity data to be divided into four parts of data, and is kept in first part of data
Maximum value be less than the minimum value in second part of data, the maximum value in second part of data is less than the minimum in third part data
It is worth, the maximum value in third part data is less than the minimum value in the 4th part of data；
Electricity 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 first part of data, Q2For the average value of second part of data, Q3For the flat of third part data
Mean value, Q4For the average value of the 4th part of data, IQR, min and max be median in calculating process；
Electricity data authentication module, for when electricity data to be verified is more than max, judging the 10kV of line loss per unit exception
Circuit occurs electric energy meter and measures event of flying away；When electricity data to be verified is less than kmin, judgement line loss per unit exception
10kV circuits occur electric energy meter and measure decrement event；Wherein, k is predetermined coefficient.
Optionally, basic source data packet include the common transformer corresponding to the 10kV circuits of line loss per unit exception loss on transmission and specially
Further include the electricity sales amount of the 10kV circuits of line loss per unit exception with the loss on transmission of transformer；Analysis module includes the analysis of line load rate
Module, line load rate analysis module include：
Circuit loss on transmission difference calculating module, for calculating the common transformer corresponding to the 10kV circuits of line loss per unit exception
The sum of loss on transmission WGWith the sum of the loss on transmission of dedicated transformer WZ；
The too low determination module of line load rate, for when the following conditions formula meets, judging the 10kV lines of line loss per unit exception
The too low event of rate of load condensate occurs for road：
(WG-WZ*a)/WS>b
Wherein, WGThe sum of the loss on transmission of common transformer corresponding to 10kV circuits for line loss per unit exception, WZIt is different for line loss per unit
The sum of the loss on transmission of dedicated transformer corresponding to normal 10kV circuits, WSFor the electricity sales amount of the 10kV circuits of line loss per unit exception, a and
B is pre-set parameter.
Optionally, basic source data packet includes the 10kV circuits of line loss per unit exception each calculating week in the first set period of time
The total active energy and total capacity of idle power of phase, analysis module include 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 is set for the quantity in the calculating cycle for meeting first condition more than first
When determining number, power factor seriously too low event occurs for the 10kV circuits of judgement line loss per unit exception；First condition is mean power
Factor is less than first threshold；
The too low determination module of second power factor is set for the quantity in the calculating cycle for meeting second condition less than first
When the quantity determined number, and meet the calculating cycle of second condition is more than the first setting number, the 10kV of line loss per unit exception 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 too low determination module of third power factor is set for the quantity in the calculating cycle for meeting second condition less than first
When the quantity determined number, and meet the calculating cycle of third condition is more than the first setting number, the 10kV of line loss per unit exception is judged
Power factor slightly too low event occurs for circuit；Third condition is that average power factor is less than third threshold value, and third 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 set period of time
The special actual motion electric current and rated current for becoming user's current transformer corresponding to circuit, analysis module include user's CT saturations
Analysis module, user's CT saturation analysis modules include：
Statistical module, for the 10kV circuits according to line loss per unit exception in each measurement period in the second set period of time
The corresponding special actual motion electric current and rated current for becoming user's current transformer, statistics meet the statistics for presetting decision condition
Whether the number in period is more than first threshold；Default decision condition is：Occur specially to become user's Current Mutual Inductance in the current statistic period
The actual motion electric current of device is more than the event of rated current；
User CT is saturated determination module, for being more than first threshold in the number for meeting the measurement period for presetting decision condition
When, the 10kV circuits of judgement line loss per unit exception occur user CT and are saturated event.
Optionally, analysis module 20 further includes：
Line footpath analysis module, for carrying out line footpath analysis to the 10kV circuits of line loss per unit exception according to basic source data.
Optionally, basic source data packet includes the actual measurement maximum current value and line security electricity of the 10kV circuits of line loss per unit exception
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 10kV circuits of loss rate exception；
The too small determination module of line footpath, for when load factor is more than load factor threshold value, judging the 10kV lines of line loss per unit exception
Road occurs line footpath and crosses mishap.
Optionally, basic source data packet includes the line loss per unit and line loss electricity and line loss of the 10kV circuits of line loss per unit exception
The public electricity consumption for becoming taiwan area and specially become user corresponding to the 10kV circuits of rate exception, analysis module includes circuit stealing reason point
Module is analysed, circuit stealing analysis of causes module includes：
Anomalous line screening module meets setting selection for being filtered out from the set of the 10kV circuits of line loss per unit exception
The 10kV circuits of the line loss per unit exception 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 period 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 period 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
The corresponding public electricity consumption difference for becoming taiwan area and specially become user；Electricity consumption difference is public change taiwan area or specially becomes user in a upper evaluation cycle
The difference of interior electricity consumption and the electricity consumption within the Evaluation: Current period；
Electricity consumption difference accounting computing module, the 10kV lines for calculating each line loss per unit exception for meeting setting alternative condition
Public affairs corresponding to road become taiwan area the and special electricity consumption difference accounting for becoming user；Electricity consumption difference accounting is public change taiwan area 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 are stealing suspicion by the public change taiwan area answered or special change user.
Wherein, standard accounting is preconfigured parameter.
Specifically, evaluation cycle can be one month, i.e., evaluated with data monthly.
In view of occurring if any stealing event, then will be reduced based on the electricity consumption that Electro-metering device is counted.Therefore,
Can also include that user sieves in circuit stealing analysis of causes module provided in this embodiment to improve data-handling efficiency
Modeling block screens for becoming taiwan area before calculating electricity consumption difference to public affairs and specially becoming user, i.e., sets and select from each satisfaction
The public taiwan area that becomes corresponding to the 10kV circuits of the line loss per unit exception of condition is selected in specially change user, is screened by user's screening module
Go out the public of electricity consumption decline to become taiwan area and specially become user, and the public electricity consumption for becoming taiwan area and specially becoming user for calculating electricity consumption decline is poor
Value.Wherein, the public taiwan area and special change user of becoming of electricity consumption decline refers to meeting the public of following condition to become taiwan area and special change user：It is public
Become taiwan area or specially become electricity consumption of the user within the Evaluation: Current period and is less than the electricity 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 has the corresponding function module of execution method and advantageous 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
It repeats no more.
Each technical characteristic of above example can be combined arbitrarily, to keep 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 range of this specification record.
Only several embodiments of the present invention are expressed for above example, the description thereof is 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 those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, these are all within the scope of protection of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of 10kV circuits line loss per unit abnormal cause detection method, which is characterized in that include the following steps：
The basis of the 10kV circuits of line loss per unit exception is obtained from distribution production system, metering automation system and marketing system
Source data；
The 10kV circuits of line loss per unit exception are carried out respectively according to basic source data any one or more in following analysis：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 10kV circuits of line loss per unit exception is shown on display interface according to analysis result；
It, can be according to the excellent of corresponding analysis method when showing the abnormal cause of 10kV circuits of line loss per unit exception according to analysis result
First grade sequence is shown, and priority is set for each analysis method, according to analysis method priority by height on display interface
The abnormal cause corresponding to each analysis result is shown to low sequence；The basis source data packet includes：
History electricity data corresponding to the 10kV circuits of line loss per unit exception and electricity data to be verified；
The loss on transmission of common transformer and the loss on transmission of dedicated transformer corresponding to the 10kV circuits of the line loss per unit exception and line
The electricity sales amount of the 10kV circuits of loss rate exception；
The 10kV circuits of line loss per unit exception total active energy of each calculating cycle and total idle electricity in the first set period of time
Amount；
Special change user in the second set period of time corresponding to the 10kV circuits of line loss per unit exception described in each measurement period
The actual motion electric current and rated current of the mutual sensor of electric current；
The actual measurement maximum current value and line security current value of the 10kV circuits of line loss per unit exception；
Public affairs corresponding to the line loss per unit and line loss electricity of the 10kV circuits of line loss per unit exception and the 10kV circuits of line loss per unit exception
Become taiwan area and changes the electricity consumption of user；
The measure monitor anomaly analysis includes the following steps：
The history electricity data is divided into four parts of data, and the maximum value in first part of data is kept to be less than second part of data
In minimum value, the maximum value in second part of data is less than the minimum value in third part data, the maximum value in third part data
Less than the minimum value in the 4th part of data；
It is handled according to following formula：IQR=Q3-Q1, min=Q1-2IQR, max=Q3+2IQR；Wherein Q1For the first number
According to average value, Q3For the average value of third part data, IQR, min and max be intermediate quantity in calculating process；
If the electricity data to be verified is more than max, judge that electric energy meter occurs for the 10kV circuits of the line loss per unit exception
Event of uprushing is measured, if the electricity data to be verified is less than kmin, judges the 10kV circuits hair of the line loss per unit exception
Raw electric energy meter measures anticlimax event；Wherein, k is predetermined coefficient.
2. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, which is characterized in that the elementary sources
Data include the loss on transmission of the loss on transmission and dedicated transformer of the common transformer corresponding to the 10kV circuits of the line loss per unit exception, also
The electricity sales amount of 10kV circuits including line loss per unit exception；
The process that rate of load condensate analysis is carried out to the 10kV circuits of line loss per unit exception includes the following steps：
Calculate the sum of the loss on transmission of common transformer corresponding to the 10kV circuits of line loss per unit exception WGWith the change of dedicated transformer
The sum of damage WZ；
If the following conditions formula meets, judge that the too low event of rate of load condensate occurs for the 10kV circuits of the line loss per unit exception：
(WG-Wz*a)/WS＞ b
Wherein, WGThe sum of the loss on transmission of common transformer corresponding to 10kV circuits for line loss per unit exception, WZFor the line loss
The sum of the loss on transmission of dedicated transformer corresponding to the 10kV circuits of rate exception, WSIt is sold for the 10kV circuits of line loss per unit exception
Electricity, a and b are pre-set parameter.
3. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, which is characterized in that the elementary sources
Data include the line loss per unit exception 10kV circuits in the first set period of time total active energy of each calculating cycle and
Total capacity of idle power；
The process that Power Factor Analysis is carried out to the 10kV circuits of line loss per unit exception includes 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 10kV of the line loss per unit exception is judged
Power factor seriously too low event occurs for circuit；The first condition is that average power factor is less than first threshold；
If the quantity for meeting the calculating cycle of first condition is 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 10kV circuits of the line loss per unit exception；
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 for meeting the calculating cycle of second condition is 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 power factor slightly too low event occurs for the 10kV circuits of the line loss per unit exception；
The third condition is that average power factor is less than third threshold value, and the third threshold value is more than the second threshold.
4. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, which is characterized in that the elementary sources
Data include the special change corresponding to the 10kV circuits of line loss per unit exception described in each measurement period in the second set period of time
The actual motion electric current and rated current of user's current transformer；
The process for carrying out user's CT saturation analysis to the 10kV circuits of line loss per unit exception respectively according to basic source data includes following
Step：
According to the special change corresponding to the 10kV circuits of line loss per unit exception described in each measurement period in the second set period of time
The actual motion electric current and rated current of user's current transformer, statistics meet the number for the measurement period for presetting decision condition；
The default decision condition is：The actual motion electric current of specially change user's current transformer occurs in the current statistic period 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
Normal 10kV circuits occur user CT and are saturated event.
5. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, which is characterized in that the elementary sources
Data include the actual measurement maximum current value and line security current value of the 10kV circuits of the line loss per unit exception；According to the basis
The process that source data carries out the 10kV circuits of the line loss per unit exception line footpath analysis includes：
The 10kV of the line loss per unit exception 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 10kV circuits of the line loss per unit exception occur line footpath and cross minor matter
Part.
6. 10kV circuits line loss per unit abnormal cause detection method according to claim 1, which is characterized in that the elementary sources
Data include the 10kV circuits of line loss per unit exception line loss per unit and line loss electricity and the 10kV circuits of line loss per unit exception corresponding to
The public electricity consumption for becoming taiwan area and specially become user；
Include to the process of the 10kV circuits progress stealing analysis of causes of line loss per unit exception according to basic source data：
The line loss per unit exception for meeting setting alternative condition is filtered out from the set of the 10kV circuits of line loss per unit exception
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 period
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 period and the line loss electricity in a upper evaluation cycle；
The public taiwan area that becomes corresponding to the 10kV circuits of each line loss per unit exception for meeting the setting alternative condition is calculated with special to become
The electricity consumption difference of user；The electricity consumption difference is the public electricity consumption for becoming taiwan area or special change user in a upper evaluation cycle and is working as
The difference of electricity consumption in preceding evaluation cycle；
It calculates the public affairs corresponding to the 10kV circuits of each line loss per unit exception for meeting the setting alternative condition and becomes taiwan area and special
Become the electricity consumption difference accounting of user；The electricity consumption difference accounting be the public electricity consumption difference for becoming taiwan area or specially becoming user with it is 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 public change taiwan area of the electricity consumption difference accounting or specially become
There are stealing suspicion by user.
7. a kind of 10kV circuits line loss per unit abnormal cause detecting system, which is characterized 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 arbitrary in following analysis for being carried out respectively to the 10kV circuits of line loss per unit exception according to basic source data
It is 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 of the 10kV circuits for showing line loss per unit exception on display interface according to analysis result；
It, can be according to correspondence analysis when showing the abnormal cause of the 10kV circuits of line loss per unit exception according to analysis result in display module
The priority orders of method are shown, for each analysis method set priority, display module on display interface according to point
The sequence of analysis method priority from high to low shows the abnormal cause corresponding to each analysis result；
The basis source data packet includes：
History electricity data corresponding to the 10kV circuits of line loss per unit exception and electricity data to be verified；
The loss on transmission of common transformer and the loss on transmission of dedicated transformer corresponding to the 10kV circuits of the line loss per unit exception and line
The electricity sales amount of the 10kV circuits of loss rate exception；
The 10kV circuits of line loss per unit exception total active energy of each calculating cycle and total idle electricity in the first set period of time
Amount；
Special change user in the second set period of time corresponding to the 10kV circuits of line loss per unit exception described in each measurement period
The actual motion galvanometer rated current of the mutual sensor of electric current；
The actual measurement maximum current value and line security current value of the 10kV circuits of line loss per unit exception；
Public affairs corresponding to the line loss per unit and line loss electricity of the 10kV circuits of line loss per unit exception and the 10kV circuits of line loss per unit exception
Become taiwan area and changes the electricity consumption of user；
The analysis module includes measure monitor anomaly analysis module, and measure monitor anomaly analysis module includes：
Electricity data division module for history electricity data to be divided into four parts of data, and is kept in first part of data most
Big value is less than the minimum value in second part of data, and the maximum value in second part of data is less than the minimum value in third part data, the
Maximum value in three parts of data is less than the minimum value in the 4th part of data；
Electricity 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 first part of data, Q3For the average value of third part data, IQR, min and max be to calculate
Median in journey；
Electricity data authentication module, for when electricity data to be verified is more than max, judging the 10kV circuits of line loss per unit exception
Electric energy meter occurs and measures event of flying away；When electricity data to be verified is less than kmin, the 10kV lines of line loss per unit exception are judged
Road occurs electric energy meter and measures decrement event；Wherein, k is predetermined coefficient.
8. 10kV circuits line loss per unit abnormal cause detecting system according to claim 7, which is characterized in that the elementary sources
Data include the line loss per unit exception 10kV circuits in the first set period of time total active energy of each calculating cycle and
Total capacity of idle power, the analysis module include 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 is more than the first setting for the quantity in the calculating cycle for meeting first condition
When number, judge that power factor seriously too low event occurs for the 10kV circuits of the line loss per unit exception；The first condition is average
Power factor is less than first threshold；
The too low determination module of second power factor is less than the first setting for the quantity in the calculating cycle for meeting first condition
When the quantity for counting, and meeting the calculating cycle of second condition is more than the first setting number, the 10kV of the line loss per unit exception is judged
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 too low determination module of third power factor is less than the first setting for the quantity in the calculating cycle for meeting second condition
When the quantity for counting, and meeting the calculating cycle of third condition is more than the first setting number, the 10kV of the line loss per unit exception is judged
Power factor slightly too low event occurs for circuit；The third condition is that average power factor is less than third threshold value, and described the
Three threshold values are more than the second threshold.
9. 10kV circuits line loss per unit abnormal cause detecting system according to claim 7 or 8, which is characterized in that the base
Plinth source data includes the 10kV circuits institute of the line loss per unit and line loss electricity and line loss per unit exception of the 10kV circuits of line loss per unit exception
The corresponding public electricity consumption for becoming taiwan area and specially become user, the analysis module includes circuit stealing analysis of causes module, the line
Road stealing analysis of causes module includes：
Anomalous line screening module meets setting selection for being filtered out from the set of the 10kV circuits of line loss per unit exception
The 10kV circuits of the line loss per unit exception 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 period 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 period 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
The corresponding public electricity consumption difference for becoming taiwan area and specially become user；The electricity consumption difference is public change taiwan area or specially becomes user in a upper evaluation
The difference of electricity consumption and the electricity consumption within the Evaluation: Current period in period；
Electricity consumption difference accounting computing module, the 10kV lines for calculating each line loss per unit exception for meeting the setting alternative condition
Public affairs corresponding to road become taiwan area the and special electricity consumption difference accounting for becoming user；The electricity consumption difference accounting is public change taiwan area or specially becomes
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 accounts for
Become than corresponding public change taiwan area or specially user's generation stealing event.
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| WO2020194534A1 (en) * | 2019-03-26 | 2020-10-01 | 東芝三菱電機産業システム株式会社 | Abnormality determination assistance device |
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