CN1392518A - Real time monitoring and analyzing technology for power line damage - Google Patents
Real time monitoring and analyzing technology for power line damage Download PDFInfo
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- CN1392518A CN1392518A CN 02109483 CN02109483A CN1392518A CN 1392518 A CN1392518 A CN 1392518A CN 02109483 CN02109483 CN 02109483 CN 02109483 A CN02109483 A CN 02109483A CN 1392518 A CN1392518 A CN 1392518A
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Abstract
The present invention discloses a real-time monitoring and analysis technology of line loss in power line by means of the power load management system. There are power station managing terminal in the output of monitored line and load management terminal at each electric meter in the power accepting point; and the main station collects the power amount in both the output and the electric meter each 30 min via the said terminals. Based on the collected data, the computer calculates the line loss and draws the power supply curve, accepted power curve and line loss curve in the same window for analysis. The present invention may be used to find illegual use of electricity, error in power metering, etc.
Description
Technical field
The invention belongs to power load management system and carry out the real time monitoring and analyzing technology field.
Technical background
Discovery in time, elimination stealing and metering fault are electric industry department a great problems always.Be to install metering AC sampling comparative analysis and hand inspection stealing additional at electricity load management terminal, eliminate metering fault at present to this way to solve the problem.The shortcoming of this method is, manpower and materials are wasteful, it is little to produce effects.And can not guarantee in time to find and eliminate whole piece circuit stealing and metering fault.
Summary of the invention
The objective of the invention is, real time monitoring and analyzing technology for power line damage is provided.
The present invention is achieved through the following technical solutions:
Existing power load management system is formed (see figure 1) by main website equipment and the load management terminal that is contained in user side.Main website equipment is made up of radio station 3, front end processor 10, server 8 and master control management work station 6,7.Main website radio station 3 is by wireless channel and load management terminal communication.The signal that receives is sent to front end processor 10, server 8 successively; The command information of master control management work station 6,7 issues is sent to front end processor 10, radio station 3 through server 8, utilizes RTTY to deliver to terminal, realizes far distance controlled, functions such as remote electric energy meter data acquisition.
The present invention carries out following improvement (see figure 2) on this basis.
One, install the substation management terminal additional at monitored line outlet electric energy meter place, circuit respectively is subjected to electricity point electric energy meter place that load management terminal all is installed;
Two, the main website equipment that utilizes power load management system to the outlet delivery, is subjected to the electricity point to be subjected to electric weight to gather an electric quantity data in per 30 minutes by substation management terminal and customer charge office terminal, and diel is gathered 48 electric quantity datas;
Three, utilize the electric quantity data of collection to carry out the real-time line loss calculating of circuit by the program of establishment: line loss per unit=[(outlet delivery-respectively be subjected to electricity to put the electric weight sum) ÷ exports delivery] * 100% by computing machine, and draw out delivery, respectively in same form, analyzed by electric weight line loss curve (can get): when (1) obviously raises in line loss by printer, descended by electric quantity curve, the electricity point that is subjected to that electric weight descends is stealing user or metering fault point; When (2) curve does not have sudden change if line loss is big, show that being subjected to electricity to put metering in the circuit has the overproof problem of metering, the method for available power failure investigation is determined and the overproof point of processing metering.In addition, can also list the real-time line loss curve of circuit in a form, each is subjected to the electric quantity curve that is subjected to of electricity point to list adjacent form respectively separately in circuit, and the electricity point that is subjected to of the real-time line loss rising of corresponding line electric quantity curve decline constantly is the stealing or the metering fault target of searching.
More for a long time, adopt segmentation to install the measuring apparatus monitoring analysis that divides into groups additional at number of users that power circuit is with.
Advantage of the present invention is, implements easily, and feasibility is strong, has the low characteristics that drop into high production.Because the stealing and the metering fault of its may command whole piece circuit can guarantee that line loss per unit reaches perfect condition.Simultaneously can save a large amount of energy, social benefit is considerable.
Description of drawings:
Fig. 1 is existing load management system network diagram
2-substation management terminal 3-radio station, 1-customer charge office terminal 4,5-communication workstation 6, the 7-master control 8-of management work station server 9-backup server 10-front end processor 11-printer
Fig. 2 monitors synoptic diagram in real time for power line damage
The CZD-of BDZ-transformer station substation management terminal JL-measuring apparatus ZD-load management
Terminal A, B, C, D, E-power consumer
The substation management terminal is equipped with at monitored line outlet electric energy meter place among the figure, and user that circuit is with can be equipped with load management terminal in the table place, and main website gathers the electric energy meter electric weight by these terminals and carries out computational analysis.
Fig. 3 is battalion's field line simplification on June 22 line loss analyzing curve map
I-user's first electric quantity curve II-user second electric quantity curve III-adds up to electric quantity curve IV-outlet metering electric quantity curve V-difference electric quantity curve VI-line loss per unit (enlarging 10000 times) curve
Fig. 4 seeks field line line loss analyzing curve map on September 2
Fig. 5 covers bear second line line loss analyzing curve map on August 30
Fig. 6 bridge lid second line line loss analyzing curve map on November 13
I-user's first electric quantity curve II-user second electric quantity curve III-outlet metering electric quantity curve IV-adds up to electric quantity curve V-difference electric quantity curve VI-line loss per unit (Fig. 4,5 enlarges 100000 times, and Fig. 6 enlarges 10000 times) curve.
Embodiment
Calendar year 2001, the power line damage real time monitoring carried out inner practical application at seven circuits such as battalion's field line of Yingkou Power Supply Ltd., lid bear second line, bridge lid second line, battalion two wires, obtained the effect of good anti-electricity-theft line loss reducing.Specific embodiment is as follows:
The application of embodiment 1, battalion's field line
Battalion's field line is a 66kV transmission line of electricity that line loss is high.After utilizing the line loss on-line monitoring system that this circuit is monitored, drawn the line loss monitoring curve by system program: battalion's field line simplification on June 22 line loss analyzing curve map (Fig. 3), the line loss that can see most of these circuits of time of whole day on curve map is bigger, is about 9%.Have only that line loss per unit is low in 6: 30,18 o'clock to 19: 30 these several time points is about 1%.By comparative analysis, think that problem may go out user's second and user third to each bar curve.Because on the time point that line loss per unit is lower in 6: 30,18 o'clock to 19: 30 these several points, user's second and user third are in the low load condition of stopping production, and this moment other users and the load of stoichiometric point significant change does not take place; See that simultaneously battalion's field line line loss per unit can manage the desirable level that reaches and be 1%.
By continuing monitoring, we carried out site inspection to above-mentioned two users June 25, and the same day, user's second stopped the production electricity consumption, and user third stops stealing.The line loss curve recovers from the morning to night and keeps normal condition below 1%.
According to this result, these two users' measuring apparatus is tested, find the metering mutual inductor unreasonable allocation of user's second, when user's full load electricity consumption, can not accurately measure.Change, and after according to monitoring curve user's second being carried out serious caveat the line loss of this circuit descend greatly (reducing nearly 5 percentage points) at mutual inductor to this user.
After battalion's field line loss monitoring is administered normally, user third electricity filching means is up to one's old tricks again, monitoring system shows monitoring result exactly: battalion's field line line loss analyzing curve map on September 2 (Fig. 4): the line loss per unit curve in 7: 30 on the 2nd September rises to 10.5%, and user third electric weight is to drop to zero.Cooperate site inspection, find that this user draws back the mode stealing of metering PT secondary fuse.After this user having been carried out the corresponding transformation processing, it is normal that the line loss per unit of this circuit is recovered, and the per day line loss electric weight of this circuit is about 3000 kilowatt hours at present, and per day line loss per unit is the actual line loss value of tracing analysis less than 1% just.By system monitoring, this circuit 7-12 month amount of electricity saving more than 360 ten thousand kilowatt hours, but every year amount of electricity saving 7,000,000 kilowatt hours.
Embodiment 2: the application of lid bear second line
Lid bear second line also is the high circuit that decreases of another 66kV, these circuit accumulative total in 1～June of this year line loss electric weight 3,230,000 kilowatt hours, and loss percentage is 3.92%, and the whole piece circuit has 2 offices electric substation and 2 rural power electric substations, and month delivery is about 1,400 ten thousand kilowatt hours.After utilizing the line loss monitoring system that this circuit is monitored, drawn the line loss monitoring curve: lid bear second line line loss analyzing curve map on August 30 (Fig. 5) by system program.Because the big curve of line loss per unit of this circuit does not have sudden change, the load of each stoichiometric point is also more stable, can't directly obtain analysis result from curve map.But judge that tentatively reason is likely that certain stoichiometric point error in dipping of existence is bigger.So adopted the investigation method of testing of " out of service at times respectively ": respectively with each electric substation out of service two hours, only obviously descend, so we judge that the metering of reed village electric substation exists than mistake in reed village electric substation back out of service circuit line loss per unit.On-the-spot test exceeds standard for the CT impedance loop.
Embodiment 3: the application of bridge lid second line
After the monitoring system operation, the line loss per unit of 66kV bridge lid second line is always below 1%.9-15 day November calendar year 2001, find that by the system monitoring analytic curve this circuit line loss uprushes, hope the electric quantity curve drop by half of horse electric substation simultaneously: bridge lid second line 11.13 line loss curve maps (Fig. 6).Can assert measuring apparatus B phase decompression according to tracing analysis.
The professional carried out site inspection November 15 to prestige horse electric substation, found the voltage transformer (VT) B of this electric substation phase cartridge fuse access failure.In time fault is eliminated, and remedied electric weight 220,000 kilowatt hours by curve calculation, the line loss curve of bridge lid second line recovers normal level.Lose electric weight 610,000 kilowatt hours half a year less.
Only six months are just lost electric weight 4,250,000 kilowatt hours, more than 170 ten thousand yuan of incomes to above application example less.And investment only is 220,000 yuan, rate of return on investment 773%.Estimate to lose electric weight 1,000 ten thousand kilowatt hours less in 2002, increase more than 400 ten thousand yuan of electricity charge incomes, year rate of return on investment 1818%.Economic benefit is considerable, has very high use value.
Claims (2)
1, real time monitoring and analyzing technology for power line damage, utilize power load management system to carry out the real-time monitoring analysis of power line damage, it is characterized in that monitored line outlet electric energy meter place installs the substation management terminal additional, circuit is subjected to electricity point electric energy meter place that load management terminal all is installed
Utilize power load management system main website equipment, by substation management terminal and user management terminal to the outlet delivery, be subjected to the electricity point to be subjected to electric weight to gather an electric quantity data in per 30 minutes, diel is gathered 48 electric quantity datas,
Utilizing the electric quantity data of gathering to carry out the real-time line loss of circuit by computing machine by the program of establishment calculates, and draw out automatically delivery, respectively be subjected to electric weight, line loss curve, in same form, analyze: if line loss obviously raises, must be subjected to the electricity point descended by electric quantity curve, the electricity point that is subjected to that electric weight descends is stealing user or metering fault point, curve does not have sudden change if line loss is big, shows to be subjected to the metering of electricity point to have metering overproof in the circuit, and investigation can have a power failure, to determine and to handle and measure overproof point
Can also list the real-time line loss curve of circuit in a form, and each is subjected to the electric quantity curve that is subjected to of electricity point to list adjacent form respectively separately in circuit, and the real-time line loss of the corresponding line electricity point that is subjected to that electric quantity curve constantly descends that obviously raises is the stealing or the metering fault target of searching.
2, real time monitoring and analyzing technology for power line damage according to claim 1 is characterized in that number of users that power circuit is with more for a long time, can adopt segmentation to install measuring apparatus additional, carries out the sectional monitoring analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021094837A CN1170258C (en) | 2002-04-13 | 2002-04-13 | Real time monitoring and analyzing technology for power line damage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021094837A CN1170258C (en) | 2002-04-13 | 2002-04-13 | Real time monitoring and analyzing technology for power line damage |
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| CN1392518A true CN1392518A (en) | 2003-01-22 |
| CN1170258C CN1170258C (en) | 2004-10-06 |
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| CNB021094837A Expired - Fee Related CN1170258C (en) | 2002-04-13 | 2002-04-13 | Real time monitoring and analyzing technology for power line damage |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086787A (en) * | 2007-06-07 | 2007-12-12 | 朱桂永 | A method for quickly drawing power line map or geographical roadmap |
| CN101477163B (en) * | 2009-01-04 | 2011-05-04 | 保定市三川电气有限责任公司 | Method for monitoring electric consumption |
| CN102280874A (en) * | 2010-06-10 | 2011-12-14 | 上海市电力公司 | Platform-area line loss rate detecting system |
| CN103399222A (en) * | 2013-07-19 | 2013-11-20 | 国家电网公司 | Line loss reduction method for unreasonable-line-loss distribution room |
| CN104280714A (en) * | 2014-10-17 | 2015-01-14 | 国家电网公司 | Running abnormality detecting method of metering device |
| CN109239498A (en) * | 2018-10-29 | 2019-01-18 | 国网江苏省电力有限公司江阴市供电分公司 | A kind of power supply line's line loss detection method |
| CN110601360A (en) * | 2019-09-09 | 2019-12-20 | 贵州蜂能科技发展有限公司 | Power monitoring method for monitoring illegal power charging |
| CN111524025A (en) * | 2019-12-06 | 2020-08-11 | 国网天津静海供电有限公司 | Electricity stealing check and treatment method based on time-sharing electricity quantity calculation |
| CN113554286A (en) * | 2021-07-06 | 2021-10-26 | 安徽明生恒卓科技有限公司 | 10kV line loss fine calculation analysis method |
| CN113985204A (en) * | 2021-10-27 | 2022-01-28 | 国网陕西省电力公司铜川供电公司 | Low-voltage line loss segmented supervision method |
| CN114114121A (en) * | 2021-11-19 | 2022-03-01 | 四川九州电子科技股份有限公司 | Method for quickly and automatically calibrating WIFI static test link line loss |
-
2002
- 2002-04-13 CN CNB021094837A patent/CN1170258C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086787B (en) * | 2007-06-07 | 2015-09-09 | 朱桂永 | A kind of method of Fast Drawing power circuit figure or geographical wiring diagram |
| CN101086787A (en) * | 2007-06-07 | 2007-12-12 | 朱桂永 | A method for quickly drawing power line map or geographical roadmap |
| CN101477163B (en) * | 2009-01-04 | 2011-05-04 | 保定市三川电气有限责任公司 | Method for monitoring electric consumption |
| CN102280874A (en) * | 2010-06-10 | 2011-12-14 | 上海市电力公司 | Platform-area line loss rate detecting system |
| CN103399222A (en) * | 2013-07-19 | 2013-11-20 | 国家电网公司 | Line loss reduction method for unreasonable-line-loss distribution room |
| CN104280714B (en) * | 2014-10-17 | 2015-12-30 | 国家电网公司 | A kind of measuring apparatus operation exception detection method |
| CN104280714A (en) * | 2014-10-17 | 2015-01-14 | 国家电网公司 | Running abnormality detecting method of metering device |
| CN109239498A (en) * | 2018-10-29 | 2019-01-18 | 国网江苏省电力有限公司江阴市供电分公司 | A kind of power supply line's line loss detection method |
| CN110601360A (en) * | 2019-09-09 | 2019-12-20 | 贵州蜂能科技发展有限公司 | Power monitoring method for monitoring illegal power charging |
| CN111524025A (en) * | 2019-12-06 | 2020-08-11 | 国网天津静海供电有限公司 | Electricity stealing check and treatment method based on time-sharing electricity quantity calculation |
| CN113554286A (en) * | 2021-07-06 | 2021-10-26 | 安徽明生恒卓科技有限公司 | 10kV line loss fine calculation analysis method |
| CN113985204A (en) * | 2021-10-27 | 2022-01-28 | 国网陕西省电力公司铜川供电公司 | Low-voltage line loss segmented supervision method |
| CN113985204B (en) * | 2021-10-27 | 2024-06-18 | 国网陕西省电力公司铜川供电公司 | Low-voltage line loss sectionalized supervision method |
| CN114114121A (en) * | 2021-11-19 | 2022-03-01 | 四川九州电子科技股份有限公司 | Method for quickly and automatically calibrating WIFI static test link line loss |
| CN114114121B (en) * | 2021-11-19 | 2023-08-08 | 四川九州电子科技股份有限公司 | Method for rapidly and automatically calibrating line loss of WIFI static test link |
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| CN1170258C (en) | 2004-10-06 |
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