CN104779699A - Multifunctional station line loss management system - Google Patents
Multifunctional station line loss management system Download PDFInfo
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- CN104779699A CN104779699A CN201410014588.6A CN201410014588A CN104779699A CN 104779699 A CN104779699 A CN 104779699A CN 201410014588 A CN201410014588 A CN 201410014588A CN 104779699 A CN104779699 A CN 104779699A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The invention discloses a multifunctional station line loss management system, and belongs to the field of power generation, power transformation or power distribution. The system comprises an existing transformer area digitalization management system, wherein the transformer area digitalization management system reads power supply and sale quantity information of each outgoing line or each user of a transformer substation to compute line loss; a list of line loss rates of the users in a previous month is exported from the transformer area digitalization management system; a line loss distinguishing data model is established to screen high line loss rate transformer areas; line loss data exception transformer areas are locked; the users in the line loss data exception transformer areas are counted according to power quantity differences of the users during flat and peak load periods; and exceptional power utilization periods are automatically distinguished by comparing the power quantity differences during the flat and peak load periods. The system can increase a distinguishing success rate of transformer area/station line loss factors, can progressively improve an integral line loss control level of transformer areas/stations by virtue of a spiral rising working mode, can gradually reduce an integral line loss rate of a regional power supply network, and can be widely applied to the field of operation analysis and power utilization management of power systems.
Description
Technical field
The invention belongs to generating, power transformation or field of power distribution, particularly relate to a kind of line loss metering management system measured for user's power consumption and manage.
Background technology
In conveying with distribute in power process, the power loss that in power network, each element produces and energy loss and unknown losses, be referred to as line loss (loss of supply), be called for short line loss.
Concerning urban electricity supply department, line loss electricity generally includes from main transformer of transformer substation to all energy losses user's electric energy meter.
Line loss electricity can not directly measure, it with amount of power supply and electricity sales amount subtraction calculations out.
The percentage that line loss electricity accounts for amount of power supply is called rate of electricity loss from transmission line, is called for short line loss rate.
Line loss rate is a principal economic indicators of power supply enterprise, its concentrated expression planning and designing of electrical network, production technology and operation management level.
Controlling line loss is the key link of management in power supply enterprise.The important process that electric power enterprise performs national energy-saving and emission-reduction deployment does a good job of it line loss fine-grained management exactly, makes great efforts to reduce line losses indices.
Authorized announcement date is on December 11st, 2013, notification number is in the Chinese invention patent of CN102545213B, disclose one " the grid line loss real-time management method based on grid line loss real-time management system ", its system comprises Automated Data Management server, central database, in real time line loss administration module and multiple work station.The output of Automated Data Management server is connected with the input of central database by network, and communicate mutually between central database with real-time line loss administration module, the output of real-time line loss administration module is connected with each work station by network.It can realize the fine-grained management of line loss, the various metering fault of Timeliness coverage and transgression for using electricity behavior, to take measures in time, thus reaches the object reducing line loss.
Publication date is on June 20th, 2012, and publication number is the Chinese invention patent application of 102509161A, discloses one " construction method of line loss four points of management systems and dividing potential drop, bus and main transformer line loss ".This system comprises partition management system, dividing potential drop management system, hierarchical management system and point unit-area management system, and the stoichiometric point parameter input system to be connected respectively with partition management system, dividing potential drop management system, hierarchical management system and point unit-area management system, its dividing potential drop management system is used for all stoichiometric points of cycle criterion, according to parameters such as the electric pressure in stoichiometric point parameter input system, dress table position, dress apparent bearings, build the statistical item of the dividing potential drop line loss of each stoichiometric point.Adopt this technical scheme, can automatically build line loss statistical model according to the electrical network parameter of stoichiometric point, when power supply parameter changes, only need change relevant stoichiometric point parameter, and the computing formula of line loss statistical item can change automatically thereupon.It achieves on-line monitoring, more the line loss monitoring of closing to reality and statistics.
Technique scheme all lays particular emphasis on the real-time online metering of line loss, added up by factors such as the quantity to line loss platform district, amount of power supply, electricity sales amount, line loss ratees with quantitative method, quantize the numerical value of each link, achieve the real-time calculating of practical line loss, for inquiry, Report form application lay the foundation.But, because line loss calculation is with the time period particularity that is computing cycle, result in prior art all can only according to different time space requirement inquiry line loss situation, usually can only monthly inquire about at present, making information in the discovery of the abnormal line loss (usually meaning the generation of user's electricity filching behavior) of user seriously delayed, there is hysteresis quality in the monitoring for the user power utilization exception in distributed district.
Distributed the district that the present invention mentions, main confession under directions electric line fork is many, and supply terminals disperses, and platform district topological diagram display electricity consumer is what concentrate, the platform district of erratic distribution.In conjunction with the actual concrete condition of applicant place power supply area, distributed district mainly comprises shanty town, the husband room of the eighties, the new-type public housing etc. of the nineties, and platform district type has resident's platform district, business platform district, business and resident's mixing station district, resident and supporting district, business, supporting with resident's platform district etc.Owing to being subject to the factor impacts such as age, building structure, public area, mostly use old-fashioned table case, wiring is also more lack of standardization; The old-fashioned community of part, the architecture against regulations is many, and population mobility is strong, and disorderly draw and disorderly connect phenomenon seriously, stealing is various informative and hidden, and this is also one of reason causing line loss high.
Because distributed district is low-voltage power distribution station area, and the residential electricity consumption amount of low-voltage platform area is many, power supply stoichiometric point many and dispersion, table meter loss large; In the theoretical line loss caluclation of low-voltage platform area, the loss of table meter is larger on the impact of three-phase imbalance on line loss; And when the degree of unbalance of three-phase load is greater than 20%, conductor wire losses is by increase by more than 30%.So Controlling line loss pattern and the theoretical line loss caluclation formula of existing 10KV and above electrical network all can not be applicable to low-voltage power distribution station area completely.
How on the basis of existing user's power consumption metering system and meter reading management system, find the abnormal electricity consumption situation of electricity consumption user as early as possible, its electricity filching behavior is controlled in the starting stage just starting to occur, by the real-time monitoring of related data, set up fast a kind of, early warning mechanism qualitatively, for inspecting of opposing electricity-stealing makes the rapid examination of instruction and key high line loss rate user timely, set up a kind of multi-functional website mode of operation of " falling damage ", and corresponding data supporting is provided, " line loss " management work is accomplished " controlled ", " in control ", improve accuracy and the promptness of line loss analyzing, unit-area management is converted into active from passive-type, " line loss " bad point is eliminated in final realization, make up the blind area of Controlling line loss work, that actual power manages and a major issue anxious to be resolved in operation of power networks work.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of multifunction station point line loss management system of local electric network, it carries out data analysis by means of existing district's line loss digital management system, the abnormal platform district/website of locking line loss, by platform district/website that automatic screening doubtful short of electricity user is more, provide the emphasis electricity consumption ownership goal carrying out on-the-spot investigation, and can according to the roughly period judging short of electricity, instruct power utility check staff to carry out site inspection in suitable working hour, determine whether electricity consumption ownership goal exists electricity filching behavior; It contributes to the differentiation success rate improving platform district/website line loss origin cause of formation, the Controlling line loss working level of whole electric company is had to the raising of a matter; By means of the mode of operation of spiral formula, improve the overall line loss level of control of platform district/website ladderingly, progressively reduce the overall wire loss rate of block supply network.
Technical scheme of the present invention is: provide a kind of multifunction station point line loss management system of local electric network, comprise existing district's digital management system, described platform district digital management system comprises supply side data acquisition unit and sale of electricity side data collecting unit, described confession, sale of electricity side data collecting unit is connected with power information acquisition system with GPRS public network through concentrator, be connected with platform district digital management system through 230M wireless private network simultaneously, its collection Allocation transformer monitoring, remote meter reading, rate of qualified voltage, electric energy quality monitoring and multiplexing electric abnormality alert analysis function are integrated, realize the remote copying of low-voltage customer metrical information, for replacement, manual site checks meter, it is characterized in that:
A, described platform district digital management system read amount of power supply, the electricity sales amount information of each bar outlet of transformer station or each user, carry out line loss calculation;
B, from platform district digital management system, derive the line loss rate inventory of previous each user of the moon;
C, set up line loss differentiate data model, carry out line loss data correlation distinguishing validity, carry out the screening in high line loss rate platform district, locking line loss data exception platform district; For described line loss data exception platform district, by mating electricity sales amount, associating information data, day carrying out error correction to checking meter, supply side is checked, realize the correctness of data correlation;
D, user for described line loss data exception platform district, put down according to user, the electricity difference of paddy period add up, by comparison that is flat, paddy section electricity difference, and the period of automatic discrimination multiplexing electric abnormality;
E, automatically determine and send best site inspection time period of line loss data exception platform district user, notice power utility check personnel carry out on-site examination by the determined multiplexing electric abnormality period, whether there is electricity filching behavior to examine user;
F, by excavating the blind spot in Controlling line loss process, in mode qualitatively, each line loss data value being differentiated qualitatively, corresponding data supporting being provided, making " line loss " management work accomplish " controlled ", " in control ";
G, improve judgement speed to line loss and validity, increase accuracy and the promptness of line loss analyzing, form effective closed loop management pattern, platform district " line loss " management is converted into active from passive-type, thus carry out circulation improvement, improve the overall line loss level of control of platform district/website ladderingly, progressively reduce the overall wire loss rate of block supply network, " line loss " bad point is eliminated in final realization, makes up the blind area of Controlling line loss work.
Concrete, the line loss described in it differentiates that data model adopts following manner to carry out line loss data correlation distinguishing validity:
According to confession, the sale of electricity side data curve of 30 days of a middle of the month, comparison every day, the electricity for, sale of electricity was poor, and mean value fluctuation ranges as poor in the electricity of average 30 days in 10% scope of electricity difference, then judge there is fixing loss electricity in platform district; Namely
Wherein, n≤i;
X
i-be the confession on the same day, sale of electricity electricity difference and the ratio of 30 days electricity mean value;
A
i---the same day, the forward of summary table was gained merit total electricity, namely the same day electricity sales amount;
B
i---the same day, the forward of summary table was gained merit total electric energy indicating value, namely the same day amount of power supply;
A
n---the forward of n days summary tables is gained merit total electricity, i.e. n days electricity sales amounts;
B
n---the forward of n days summary tables is gained merit total electric energy indicating value, i.e. n days amount of power supply.
Further, if described every day was greater than the fluctuation in 20 times 10% in 30 days for, sale of electricity electricity difference, then there is associated errors in preferential judgement, otherwise then line loss flow process conveniently differentiates, that is:
Wherein, Y
i---the frequency of the total electricity difference fluctuation in 20 days;
If
then there is associated errors in preferential judgement;
If
then line loss flow process conveniently differentiates.
Further, described in it, the screening in high line loss rate platform district adopts following decision logic relational expression to carry out automatic Logic judgment:
If line loss rate >=︱ 50% is ︱, as the platform district of primary defect elimination;
If ︱ 10% ︱ < line loss rate < ︱ 50% is ︱, as alternative district;
If line loss rate≤︱ 10% is ︱, wouldn't process.
The multiplexing electric abnormality period described in it, by Duan Yugu period at ordinary times sell, the ratio of electricity difference of powering determines, that is:
H
i=(a
paddy-b
paddy)
L
i=(a
flat-b
flat)
According to (H
i-L
i) difference size select different execution contents, that is:
Wherein, α
paddy---the forward of paddy section is gained merit total electricity, i.e. paddy section electricity sales amount;
B
paddythe forward of-paddy section is gained merit total electric energy indicating value, i.e. paddy section amount of power supply;
α
flatthe forward of-flat section is gained merit total electricity, i.e. flat section electricity sales amount;
B
flatthe forward of-flat section is gained merit total electric energy indicating value, i.e. flat section amount of power supply;
H
i-paddy period average electricity difference;
L
i-section average electricity difference at ordinary times;
I step---" putting down " period sends work;
Ii step---" paddy " period sends work;
Iii step---all the period of time all can send work.
Multifunction station point line loss management system of local electric network described in the technical program obtains based on the amount of power supply of each bar outlet of transformer station or each user, electricity sales amount information data, carry out data analysis, lock abnormal platform district, electricity sales amount being mated, information data is associated, day carrying out error correction to checking meter, supply side is checked, realizes the correctness of data correlation; And pass through the more platform district of system automatic screening doubtful short of electricity user, carry out scene investigation, determine whether stealing, then follow the tracks of investigation process, realize investigation rate 100%.
Compared with the prior art, advantage of the present invention is:
1. obtain based on the amount of power supply of each bar outlet of transformer station or each user, electricity sales amount information data, carry out data analysis, lock abnormal platform district, electricity sales amount being mated, information data is associated, day carrying out error correction to checking meter, supply side is checked, realize the correctness of data correlation, whole process adopts PDCA circulation pattern, adopt the defect elimination processing mode that spiral goes forward one by one, improve the differentiation of the line loss origin cause of formation, contribute to the target that Controlling line loss realizes integration, high efficiency, real-time, validity;
2. by the platform district that system automatic screening doubtful short of electricity user is more, specify the investigation period, carry out scene investigation by inspector, determine whether stealing, then follow the tracks of investigation process, get rid of the impact of human factor, realize improving constantly of investigation rate;
3. make full use of network configuration and the data message of existing district's digital management system platform, maximally utilise the relevant information of various service data, in mode qualitatively, the confession of each user, power consumption parameter value are differentiated qualitatively, greatly improve the judgement speed to line loss and validity, utilize the theory of " closed loop ", " all standing ", removing management blind spot, providing beneficial support for better carrying out Controlling line loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing district's digital management system;
Fig. 2 is the schematic flow sheet of line loss data correlation distinguishing validity of the present invention;
Fig. 3 is that the present invention opposes electricity-stealing and investigates and prosecutes the schematic flow sheet of flow process.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
In Fig. 1, the multifunction station point line loss management system of local electric network of the technical program, comprises existing district's digital management system.Platform district digital management system described in it comprises supply side data acquisition unit and sale of electricity side data collecting unit, described confession, sale of electricity side data collecting unit are connected with power information acquisition system with GPRS public network through concentrator, be connected with platform district digital management system through 230M wireless private network simultaneously, it integrates Allocation transformer monitoring, remote meter reading, rate of qualified voltage, electric energy quality monitoring and multiplexing electric abnormality alert analysis function, realize the remote copying of low-voltage customer metrical information, for replacement, manual site checks meter.
Platform district digital management system described in the technical program is that a set of Ji Tai district Controlling line loss, distribution transformer monitoring, remote meter reading, rate of qualified voltage, electric energy quality monitoring, multiplexing electric abnormality and the functions such as alert analysis of checking meter are integrated.This system has following features:
1) by 230M wireless private network mode, the electricity of electric supply meter is gathered, electricity, voltage, the electric current of platform district summary table, the various information such as platform temperature;
2) platform district line loss and line loss rate programming count are calculated, can the line loss forms such as hour, day, month be realized; Such as: user's information about power platform district line loss monitoring system that can obtain 24 hours
3) low-voltage platform area distribution automation management is realized;
4) analyzed by Various types of data, realize the digital management of platform district; Realize platform district Controlling line loss, distribution transformer monitoring, remote meter reading, rate of qualified voltage, electric energy quality monitoring, multiplexing electric abnormality and the functions such as alert analysis of checking meter:
The form that can generate in system also meet check meter, requirement that livelihood, some division datas such as marketing gather and report.
Because each data acquisition unit above-mentioned and whole digital management system are existing equipment and system, therefore it specifically forms and the course of work no longer describes at this, those skilled in the art, can REFERENCE TO RELATED people apply for before this, publication date is on October 10th, 2012, publication number is the Chinese invention patent application " a kind of majority based on intelligent power grid technology is according to interface synthesis line loss management system of local electric network " of CN102722851A and publication date is on October 03rd, 2012, publication number is the related content in the Chinese invention patent application " a kind of line loss based on intelligent power grid technology become more meticulous precise alignment method " of CN102707156A.
In Fig. 2, give the flow process of line loss data correlation distinguishing validity, its idiographic flow comprises the following steps:
1. data acquisition:
Previous moon line loss rate inventory is derived from grid line loss fine-grained management system.
2. data analysis:
According to line loss rate descending, carry out the Preliminary screening in high line loss rate platform district.
Its discrimination formula is as follows:
Line loss rate >=︱ 50% ︱, as the platform district of primary defect elimination; Reason is that quantity is few, line loss is high, outstanding problem, instant effect.
︱ 10% ︱ < line loss rate < ︱ 50% ︱, as alternative district;
Line loss rate≤︱ 10% ︱, wouldn't process.
3. lock abnormal platform district:
Determine according to data results the platform district list needing defect elimination, carry out platform district Validation of Data.CIS mates with the power consumption of the platform that becomes more meticulous, associated errors, working day of checking meter mate and amount of power supply detects and distributes simultaneously.
4.CIS mates with the power consumption of the platform that becomes more meticulous:
Whether unanimously differentiate that CIS and the agreement platform district of the platform that becomes more meticulous add up electricity.Discrimination formula: IF ' (SUM (PMS electricity)=SUM (PMS electricity)), " unanimously ", " inconsistent "); Again differentiate if " unanimously " gets back to data analysis link; The words of " inconsistent " need to forward to analyzes client's link;
5. analyze client:
The platform district inconsistent to electricity carries out electricity reduction, and flow process is again got back to data analysis and again differentiated.And the reason causing electricity inconsistent mainly contain following some.
1) to metering mistakes such as scene table meter fault, multiplying power mistake, mode of connection mistake, table room mistake, copper iron loss mistakes; The subsequent collection of benefit and mistake table, black table is moved back in the electricity charge of the charging mistakes such as electricity price mistake, requirement limit mistake, power factor mistake.
2) Small Amount user, " adjustment sale of electricity increases, subtracts advice note " is filled according to the qualification of table meter list, site inspection situation etc. by power utility check personnel, fill in and clearly should move back benefit reason, move back benefit month, computing formula, move back benefit mode, table meter quality problems need subordinate list meter to measure testimonial.
3) more than 100KW large user, filled in " large user's electricity charge mistake (adjustment) processes advice note " by power utility check personnel, other fill requests are the same.
6. whether associated errors:
Differentiate whether synchronous the association between PMS and CIS system is coordinated.Judge in two steps.
The first step, differentiates that whether the information in PMS and CIS is consistent.Discrimination formula: IF (COUNTIF (PMS ' " family number "=CIS " table number ")=0, " unanimously ", " inconsistent "; Again differentiate if " unanimously " gets back to data analysis; The words of " inconsistent " carry out association adjustment with regard to needs
Second step, whether differentiation scene exists associated errors, and concrete discrimination standard and formula are shown in 4.3.
7. association adjustment:
After data correlation correction is carried out to the wrong information of association, get back to " data analysis " link and again differentiate.
8. check meter and mate working day:
Whether unanimously check meter day, if inconsistent turn of assistant director's adjustment of checking meter in data automatic discrimination same district.Its decision rule is as follows:
(1) same district must enroll in the same section of checking meter,
Can have multiple section of checking meter in (2) one Ge Tai districts, but day of checking meter is necessary for one day.
9. check meter and adjust day:
The data inconsistent for day of checking meter adjust, and reduce electricity.Mainly have in same district large user check meter day and Small Amount user inconsistent, bag lamp client needs Quantitative reduction, and moving back that table meter fault causes is mended electricity, opposed electricity-stealing and investigate and prosecute reduction electricity etc.
10. amount of power supply detects:
When flow process is initial, turns production division and check and approve, three working days reply; Listed by main inspection, whether supply terminals is complete, whether there is road power consumption equipment, improves PMS system figure, load measuring-recording instrument defect elimination, confirmation low-voltage customer related information.If data are correctly directly got back to, " data analysis " is checked and approved again; Data are incorrect, carry out defect elimination process, mainly to the installation of load measuring-recording instrument, debugging, defect elimination.Reduce amount of power supply, until data are correctly effective simultaneously.
11. Data Update:
After defect elimination, the amount of power supply data of error fed back, flow process is got back to, and " data analysis " is checked and approved again.
Next circulation is proceeded to after flow process.
Further, above-mentioned line loss differentiates that data model adopts following manner to carry out line loss data correlation distinguishing validity:
According to confession, the sale of electricity side data curve of 30 days of a middle of the month, comparison every day, the electricity for, sale of electricity was poor, and mean value fluctuation ranges as poor in the electricity of average 30 days in 10% scope of electricity difference, then judge there is fixing loss electricity in platform district; Namely
Wherein, n≤i;
X
i-be the confession on the same day, sale of electricity electricity difference and the ratio of 30 days electricity mean value;
A
i---the same day, the forward of summary table was gained merit total electricity, namely the same day electricity sales amount;
B
i---the same day, the forward of summary table was gained merit total electric energy indicating value, namely the same day amount of power supply;
A
n---the forward of n days summary tables is gained merit total electricity, i.e. n days electricity sales amounts;
B
n---the forward of n days summary tables is gained merit total electric energy indicating value, i.e. n days amount of power supply.
Wherein, if described every day was greater than the fluctuation in 20 times 10% in 30 days for, sale of electricity electricity difference, then there is associated errors in preferential judgement, otherwise then line loss flow process conveniently differentiates, that is:
Wherein, Y
i---the frequency of the total electricity difference fluctuation in 20 days;
If
then there is associated errors in preferential judgement;
If
then line loss flow process conveniently differentiates.
In Fig. 3, giving opposes electricity-stealing investigates and prosecutes the flow process of flow process, and detailed process is as follows:
A, mentality of designing:
Carry out the period of statistic discriminance stealing according to the electricity difference of stealing family Pinggu period, be conducive to the more effective investigation of power utility check personnel.
B, computing formula and discrimination standard:
The electricity of stealing family Pinggu period is poor, by Duan Yugu period at ordinary times sell, the ratio of electricity difference of powering determines, that is:
H
i=(a
paddy-b
paddy)
L
i=(a
flat-b
flat)
According to (H
i-L
i) difference size select different execution contents, that is:
Wherein, α
paddy---the forward of paddy section is gained merit total electricity, i.e. paddy section electricity sales amount;
B
paddythe forward of-paddy section is gained merit total electric energy indicating value, i.e. paddy section amount of power supply;
α
flatthe forward of-flat section is gained merit total electricity, i.e. flat section electricity sales amount;
B
flatthe forward of-flat section is gained merit total electric energy indicating value, i.e. flat section amount of power supply;
H
i-paddy period average electricity difference;
L
i-section average electricity difference at ordinary times;
I step---" putting down " period sends work;
Ii step---" paddy " period sends work;
Iii step---all the period of time all can send work.
Above-mentioned " putting down " period, refer to peak of power consumption period or usual electricity consumption period, above-mentioned " paddy " period, refer to electricity consumption offpeak period, this (also has and is referred to as electricity consumption " peak ", " paddy " period) for being commonly called as in the industry.
Further, being described below to flow process as shown in the figure:
1. screen the more platform district of doubtful stealing number of users:
Preliminary screening is carried out to power information acquisition system derived data; Screening 5 days≤this month electricity consumption number of days < 20 days and the less information of the section of checking meter repeat number, use extraction system inner analysis, see figure, look for rule, screen.
2. locking step district:
Result according to screening locks the platform district that need investigate.
3. on-the-spot investigation:
Before sending single looking into, first carry out the screening (see above and state B item content) of period; Judge the roughly period of short of electricity, then send work scene to be checked and verify;
4. whether stealing:
According to screening inventory scene investigation; Check according to " stealing, promise breaking power utility check job instruction "." not stealing " information returns to source and again screens; " if stealing ", turning opposes electricity-stealing carries out internal field process.
5. to oppose electricity-stealing process:
Following the tracks of checking and verify work order, processing according to " stealing Treatment for Default job instruction ", until filing.
6. whether successfully process:
To needing work order to be processed, by the whether processed filing of CIS distinguish of system flow process, if do not have process to turn back to " process of opposing electricity-stealing " continue supervisor, until flow process filing closed loop.
Along with the deepening continuously and exploitation of concrete manifestation form of Controlling line loss model application, Controlling line loss pattern will inevitably change thereupon.To adhere to holding on the constant basis of Controlling line loss pattern essence, constantly bring forth new ideas concrete mode, method, Controlling line loss pattern constantly to be enriched and perfect.Along with the development of technology and distribution automation and the perfect of marketing CIS system are copied, far copied to digital power grid collection, and the application of line loss digital Platform, realize the integration of Controlling line loss, high efficiency.
The present invention can be widely used in operating analysis and the management of power use field of electric power system.
Claims (6)
1. a multifunction station point line loss management system of local electric network, comprise existing district's digital management system, described platform district digital management system comprises supply side data acquisition unit and sale of electricity side data collecting unit, described confession, sale of electricity side data collecting unit is connected with power information acquisition system with GPRS public network through concentrator, be connected with platform district digital management system through 230M wireless private network simultaneously, its collection Allocation transformer monitoring, remote meter reading, rate of qualified voltage, electric energy quality monitoring and multiplexing electric abnormality alert analysis function are integrated, realize the remote copying of low-voltage customer metrical information, for replacement, manual site checks meter, it is characterized in that:
A, described platform district digital management system read amount of power supply, the electricity sales amount information of each bar outlet of transformer station or each user, carry out line loss calculation;
B, from platform district digital management system, derive the line loss rate inventory of previous each user of the moon;
C, set up line loss differentiate data model, carry out line loss data correlation distinguishing validity, carry out the screening in high line loss rate platform district, locking line loss data exception platform district; For described line loss data exception platform district, by mating electricity sales amount, associating information data, day carrying out error correction to checking meter, supply side is checked, realize the correctness of data correlation;
D, user for described line loss data exception platform district, put down according to user, the electricity difference of paddy period add up, by comparison that is flat, paddy section electricity difference, and the period of automatic discrimination multiplexing electric abnormality;
E, automatically determine and send best site inspection time period of line loss data exception platform district user, notice power utility check personnel carry out on-site examination by the determined multiplexing electric abnormality period, whether there is electricity filching behavior to examine user;
F, by excavating the blind spot in Controlling line loss process, in mode qualitatively, each line loss data value being differentiated qualitatively, corresponding data supporting being provided, making " line loss " management work accomplish " controlled ", " in control ";
G, improve judgement speed to line loss and validity, increase accuracy and the promptness of line loss analyzing, form effective closed loop management pattern, platform district " line loss " management is converted into active from passive-type, thus carry out circulation improvement, improve the overall line loss level of control of platform district/website ladderingly, progressively reduce the overall wire loss rate of block supply network, " line loss " bad point is eliminated in final realization, makes up the blind area of Controlling line loss work.
2., according to multifunction station point line loss management system of local electric network according to claim 1, it is characterized in that described line loss differentiates that data model adopts following manner to carry out line loss data correlation distinguishing validity:
According to confession, the sale of electricity side data curve of 30 days of a middle of the month, comparison every day, the electricity for, sale of electricity was poor, and mean value fluctuation ranges as poor in the electricity of average 30 days in 10% scope of electricity difference, then judge there is fixing loss electricity in platform district; Namely
Wherein, n≤i;
X
i-be the confession on the same day, sale of electricity electricity difference and the ratio of 30 days electricity mean value;
A
i---the same day, the forward of summary table was gained merit total electricity, namely the same day electricity sales amount;
B
i---the same day, the forward of summary table was gained merit total electric energy indicating value, namely the same day amount of power supply;
A
n---the forward of n days summary tables is gained merit total electricity, i.e. n days electricity sales amounts;
B
n---the forward of n days summary tables is gained merit total electric energy indicating value, i.e. n days amount of power supply.
3. according to multifunction station point line loss management system of local electric network according to claim 2, in 30 days, be greater than described every day the fluctuation in 20 times 10% for, sale of electricity electricity difference if it is characterized in that, then there is associated errors in preferential judgement, otherwise, then line loss flow process conveniently differentiates, that is:
Wherein, Y
i---the frequency of the total electricity difference fluctuation in 20 days;
If
then there is associated errors in preferential judgement;
If
then line loss flow process conveniently differentiates.
4., according to multifunction station point line loss management system of local electric network according to claim 1, it is characterized in that the screening in described high line loss rate platform district adopts following decision logic relational expression to carry out automatic Logic judgment:
If line loss rate >=︱ 50% is ︱, as the platform district of primary defect elimination;
If ︱ 10% ︱ < line loss rate < ︱ 50% is ︱, as alternative district;
If line loss rate≤︱ 10% is ︱, wouldn't process.
5., according to multifunction station point line loss management system of local electric network according to claim 1, it is characterized in that the described multiplexing electric abnormality period, by Duan Yugu period at ordinary times sell, the ratio of electricity difference of powering determines, that is:
H
i=(a
paddy-b
paddy)
L
i=(a
flat-b
flat)
According to (H
i-L
i) difference size select different execution contents, that is:
Wherein, α
paddy---the forward of paddy section is gained merit total electricity, i.e. paddy section electricity sales amount;
B
paddythe forward of-paddy section is gained merit total electric energy indicating value, i.e. paddy section amount of power supply;
α
flatthe forward of-flat section is gained merit total electricity, i.e. flat section electricity sales amount;
B
flatthe forward of-flat section is gained merit total electric energy indicating value, i.e. flat section amount of power supply;
H
i-paddy period average electricity difference;
L
i-section average electricity difference at ordinary times;
I step---" putting down " period sends work;
Ii step---" paddy " period sends work;
Iii step---all the period of time all can send work.
6. according to multifunction station point line loss management system of local electric network according to claim 1, it is characterized in that described multifunction station point line loss management system of local electric network obtains based on the amount of power supply of each bar outlet of transformer station or each user, electricity sales amount information data, carry out data analysis, lock abnormal platform district, electricity sales amount being mated, information data is associated, day carrying out error correction to checking meter, supply side is checked, realizes the correctness of data correlation; And pass through the more platform district of system automatic screening doubtful short of electricity user, carry out scene investigation, determine whether stealing, then follow the tracks of investigation process, realize investigation rate 100%.
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