CN109683059B - Method and device for determining line loss abnormity, storage medium and processor - Google Patents
Method and device for determining line loss abnormity, storage medium and processor Download PDFInfo
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Abstract
The invention discloses a method and a device for determining line loss abnormity, a storage medium and a processor. The method for determining the line loss abnormity comprises the following steps: monitoring abnormal data of line loss in a preset time period through a preset system, wherein the preset system comprises at least one of the following data: a marketing system and a contemporaneous line loss system; analyzing the abnormal data to determine factors influencing line loss; the method and the device eliminate the factors influencing the line loss according to the preset sequence, adjust the abnormal phenomenon of the line loss, and achieve the purpose of determining the factors influencing the line loss based on the line loss data, thereby achieving the technical effect of adjusting the abnormal line loss by adjusting the factors influencing the line loss, and solving the technical problem that the abnormal line loss cannot be effectively adjusted in the related technology.
Description
Technical Field
The invention relates to the field of power consumption, in particular to a method and a device for determining line loss abnormity, a storage medium and a processor.
Background
The existing line loss analysis method needs to rely on a telecommunication system acquisition system of a power company and relevant data of an integrated electric quantity and line loss system, and after the data are acquired, line loss abnormity analysis of a 10kV transformer area, a 10kV line, a bus balance and a power transmission line is carried out.
Aiming at the problem that the line loss abnormity cannot be effectively adjusted in the related technology, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a method and a device for determining line loss abnormity, a storage medium and a processor, which are used for at least solving the technical problem that the line loss abnormity cannot be effectively adjusted in the related technology.
According to an aspect of the embodiments of the present invention, there is provided a method for determining a line loss abnormality, including: monitoring data of line loss abnormity in a preset time period through a preset system, wherein the preset system comprises at least one of the following components: a marketing system and a contemporaneous line loss system; analyzing the abnormal data to determine factors influencing the line loss; and eliminating factors influencing the line loss according to a preset sequence, and adjusting the line loss abnormal phenomenon.
Further, when analyzing the abnormal line loss data of the 10kV transformer area, determining that the factors influencing the line loss at least comprise one of the following factors: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box and an ammeter.
Further, the factors affecting the line loss are adjusted in a predetermined order, wherein the order comprises: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box and an ammeter.
Further, when analyzing the abnormal data of the line loss of the 10 kilovolt line, determining that the factors influencing the line loss at least comprise one of the following factors: whether the switch number of the transformer substation is correct or not, whether the line name is correct or not, whether the CT transformation ratio of the transformer substation switch is correct or not, whether the bottom of a user meter is missing or not, whether the user is missing or not and whether the meter hooking relation is correct or not are determined.
Further, when analyzing the abnormal data of the bus balance and the line loss of the power transmission line, determining that the factors influencing the line loss at least comprise one of the following factors: meter decompression problem, loss of flow detection problem.
According to another aspect of the embodiments of the present invention, there is also provided an apparatus for determining a line loss abnormality, including: the acquisition unit monitors abnormal line loss data in a preset time period through a preset system, wherein the preset system comprises at least one of the following components: a marketing system and a contemporaneous line loss system; the first determining unit is used for analyzing the abnormal data and determining factors influencing the line loss; and the adjusting unit is used for eliminating factors influencing the line loss according to a preset sequence and adjusting the line loss abnormal phenomenon.
Further, the above apparatus comprises: the second determining unit is used for determining that factors influencing the line loss at least comprise one of the following factors when the abnormal line loss data of the 10 kilovolt station area are analyzed: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box and an ammeter.
Further, the above apparatus comprises: the third determining unit is used for determining that factors influencing the line loss at least comprise one of the following factors when the abnormal line loss data of the 10 kilovolt line is analyzed: whether the switch number of the transformer substation is correct or not, whether the line name is correct or not, whether the CT transformation ratio of the transformer substation switch is correct or not, whether the bottom of a user meter is missing or not, whether the user is missing or not and whether the meter hooking relation is correct or not are determined.
According to another aspect of the embodiments of the present invention, there is also provided a storage medium, where the storage medium includes a stored program, where the program is executed to perform any one of the above methods for determining a line loss anomaly.
According to another aspect of the embodiments of the present invention, there is also provided a processor, configured to execute a program, where the program executes any one of the above methods for determining a line loss exception.
In the embodiment of the present invention, a preset system is used to monitor data of line loss abnormality in a predetermined time period, where the preset system includes at least one of the following: a marketing system and a contemporaneous line loss system; analyzing the abnormal data to determine factors influencing line loss; the method and the device eliminate the factors influencing the line loss according to the preset sequence, adjust the abnormal phenomenon of the line loss and achieve the purpose of determining the factors influencing the line loss based on the line loss data, thereby realizing the technical effect of adjusting the abnormal line loss by adjusting the factors influencing the line loss and further solving the technical problem that the abnormal line loss cannot be effectively adjusted in the related technology.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow diagram of a method of determining a loss anomaly according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an apparatus for determining a line loss anomaly according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
There is also provided, in accordance with an embodiment of the present invention, an embodiment of a method for determining line loss anomalies, it being noted that the steps illustrated in the flowchart of the accompanying figures may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different than here.
The method for determining a line loss abnormality according to the embodiment of the present invention will be described in detail below.
Fig. 1 is a flowchart of a method for determining a line loss abnormality according to an embodiment of the present invention, and as shown in fig. 1, the method for determining a line loss abnormality includes the following steps:
step S102, monitoring abnormal data of line loss in a preset time period through a preset system, wherein the preset system comprises at least one of the following components: marketing system and contemporaneous line loss system.
The predetermined time period may be a day or a month. For example, the daily loss is used as a grip for analysis, after the daily loss of the current day is derived from a marketing system or a contemporaneous line loss system, the daily loss of one month is used as a grip, and the reason for disqualification is analyzed by the daily loss depending on the power consumption information acquisition system.
And step S104, analyzing the abnormal data and determining factors influencing line loss.
It should be noted that, when analyzing the abnormal line loss data of the 10kv station area, the factors determining the line loss at least include one of the following: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box and an ammeter. Wherein, adjust the factor that influences the line loss according to predetermined order, wherein the order includes: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box and an ammeter.
When analyzing the abnormal data of the line loss of the 10 kilovolt line, determining that the factors influencing the line loss at least comprise one of the following factors: whether the switch number of the transformer substation is correct or not, whether the line name is correct or not, whether the CT transformation ratio of the transformer substation switch is correct or not, whether the bottom of a user meter is missing or not, whether the user is missing or not and whether the meter hooking relation is correct or not are determined.
When analyzing the abnormal data of the bus balance and the line loss of the power transmission line, determining that the factors influencing the line loss at least comprise one of the following factors: meter decompression problem, loss of flow detection problem.
And step S106, eliminating factors influencing the line loss according to a preset sequence, and adjusting the line loss abnormal phenomenon.
Through the steps, monitoring abnormal data of line loss in a preset time period through a preset system, wherein the preset system comprises at least one of the following steps: a marketing system and a contemporaneous line loss system; analyzing the abnormal data to determine factors influencing line loss; the method and the device eliminate the factors influencing the line loss according to the preset sequence, adjust the abnormal phenomenon of the line loss and achieve the purpose of determining the factors influencing the line loss based on the line loss data, thereby realizing the technical effect of adjusting the abnormal line loss by adjusting the factors influencing the line loss and further solving the technical problem that the abnormal line loss cannot be effectively adjusted in the related technology.
The invention also provides a preferred embodiment, and the preferred embodiment provides a line loss abnormity analysis method for the 10kV transformer area. The method is described in detail as follows:
analyzing by taking daily loss as a grip, after the daily loss of the current day is derived from a marketing system or a contemporaneous line loss system, analyzing unqualified reasons by taking the daily loss of a continuous month as the grip and relying on an electricity utilization information acquisition system; checking the user-variable relationship (distribution room and pole transformer), checking the meter information (meter number, multiplying power and running state), the meter wiring, and the user meter information (meter number, multiplying power and running state); making a field inspection problem statistical table, and issuing a problem correction task book (covering wrong wiring, acquisition and marketing archive problems); PMS system line-to-line relation, GIS system file information, marketing system user-to-change relation and field problem rectification; whether the loss is qualified or not is continuously observed for several days.
The main problem analysis is as follows:
1. the problem of the station-to-house relationship
The observation system finds that uncertainty exists in data updating time and accuracy from marketing to marketing and from marketing to acquisition of data updating of the corresponding relation between the station and the user. Moreover, the line loss rate data is unstable, qualified during trial calculation, and not always qualified after being imported into the system, so that the improvement rate is not obvious. The problem of the station-household relationship is treated by checking the power supply relationship of each power supply station, running through the power supply station and modifying the hanging relationship; the collection problem is mainly adjusted and communicated by metering-assisted power supply; the meter wrong wiring problem can be solved by each power supply station; the CT multiplying power problem of the current transformer is mainly to check the file information error of the meter and to solve the problem through correction.
Aiming at the area with unqualified line loss, firstly, judging whether the hitching relation of the 'change-house' is complete and accurate, if not, checking the acquisition on site as follows:
1) transformer net: the name, pole number, position number, common name of the transformer (such as five districts in village on forest), capacity, use property and the like of the 10kV line.
2) Collecting device account: recording the number of the examination table and the CT value; verifying whether the secondary wiring is correct or not, and verifying whether the polarity is reverse or not; and checking whether the lead wires of the meter and the collector are in virtual connection or not, checking whether the screws are screwed down or not by using a screwdriver, and immediately processing after a problem is found.
3) Low-voltage line account: drawing a low-voltage circuit diagram, verifying the total amount of users carried on each branch line by the rural power grid and the comprehensive transformer, dividing according to a single-phase table and a three-phase table, and verifying the number of single-phase users carried by each phase (A, B, C phases); verifying the number and the capacity of the motor-pumped wells by using a water conservancy transformer; the condition of the same-pole parallel operation is checked by the low-voltage line, whether the condition that the high-voltage line and the low-voltage line are different power supplies are arranged on the same pole or not is checked, and whether a low-voltage dual power supply exists or not is checked.
4) Low-voltage user metering box-ammeter: and the test checking meter and the low-voltage user meter box meter information in the distribution area are adopted and recorded as well as the asset information and the geographic coordinate information of the low-voltage user metering box. Relation information between the metering box and the electric energy meter and relation information between the metering box and the power supply of the low-pressure rod.
5) After the field data acquisition is finished, drawing low-voltage line paper, checking whether the number and the CT value of an examination and check table in a station area are consistent with those of an SG186 system, and simultaneously checking whether the examination and check table has voltage and current in an acquisition system and whether the reading is normal. And carrying out system entry or modification on the line information of the station area collected and recorded on site, including entry and modification of graphs and accounts. And then, importing the collected low-voltage user metering box-electric meter data into a GIS1.6 and a marketing SG186 system, and establishing a correct 'variable-user' relationship.
6) If the data checking and inputting are completed and the correct 'variable-household' relationship is established, checking the electric quantity acquisition condition of the electric meter under the transformer area through a line loss system, if the electric quantity acquisition condition does not have a bottom display number, using an electricity utilization information acquisition system, counting, inquiring, report managing and electric meter data inquiring functions, selecting important checking of active power, voltage, current and the like, if the near time of the checking time point has a frozen bottom display number, the electric meter is temporary and has no data, if the near time has a display number, the electric meter mainly checks whether the A, B, C three-phase voltage and current are balanced or not, whether the voltage is in short of the phase or not, if the field possibly has a virtual connection or a terminal box is in short of the connection A, B, C and whether the negative current exists or not, and if the field exists, the field is determined to have the reverse connection; and checking a reverse active reading, wherein a non-photovoltaic platform area is not subjected to word walking in the reverse direction, otherwise, a possibility of wrong line connection exists, and debugging of the metering and collecting device is carried out on site until the normal collection is carried out.
2. Problems of meter
The abnormal line loss in the stage area is mainly caused by the fact that the hooking relation of the meters is not consistent with the actual condition, and the condition of wrong wiring or meter fault exists in the running meters. The marketing specialty monitors and analyzes the daily loss collection and copy-through condition of the full-coverage area through the power consumption information collection system, combs through the collection condition twice a day, and monitors the working quality and efficiency of the collection operation and maintenance personnel. And requiring measurement professions to make corresponding working plans and organizing and developing the work of all acquisition, reloading and additional acquisition in the distribution area. The meter-total-acquisition work scheduling is organized every week, each power supply station reports the progress condition of acquisition coverage, and the metering major uniformly arranges the condition that the whole cell is not changed, so that the total-acquisition coverage work can be performed as soon as possible. Meanwhile, 5-10 detail tables of 'inedible' and 'unqualified' transformer areas are issued to the power supply station every week to supervise and urge the power supply station to carry out the treatment work of the line loss abnormal transformer areas, and the treatment work effect is brought into a standard checking system of the power supply station industry according to the treatment condition every month to be reflected. Visit 2-3 power supply stations every week and develop the technical support work of GIS1.6 and SG186 systems, and intensively develop the field guidance work of problem data about the power supply stations.
3. Influence problem of overhead ground-entering engineering
The method comprises the steps that the line loss checking and governing work of the aerial underground platform area is carried out, the working flow of a construction part, an operation and inspection part and an operation and marketing part is coordinated, the construction part and an external cooperation construction unit are matched to complete the platform-household relationship checking work of a new power generation platform area on site, a completed work drawing is transferred to the operation and inspection part within 15 days after power generation, the operation and inspection part completes the entry of a PMS system and a GIS system within 10 working days after receiving the completed work drawing, old sales households and new installation households are disassembled on 186 platform areas, the operation and inspection of the marketing and management of the marketing parts are prepared, and after the operation and inspection part receives the notice that the platform area establishment is completed, checked platform-household relationship lists are led into the GIS and 186 system, and the qualification condition of the line loss rate of the platform area is monitored and analyzed.
4. Collection coverage and operation and maintenance aspects
In the areas which do not realize full collection, the area ratio of the number of the electric meters which are not collected within 5 households is the largest. And (4) combining the intelligent meter replacing project and the low-voltage non-residential project, developing the full-acquisition covering work of the transformer area, and completing the installation, acquisition and debugging of the on-site meter. By comprehensive analysis of the power supply and sales amount and the acquisition rate, the line loss of the transformer area is not qualified aiming at the transformer area with the verified power supply relation, and the line loss of the transformer area is regulated by pertinently verifying the problems of CT transformation ratio, meter and the like.
5. Aspects of data governance
And the marketing and distribution consistency rate is combed, and the unification of the marketing system and the production system is completed by combining the management work of the marketing and distribution consistency rate, so that the consistency of data is ensured.
6. Coal to electricity aspect
For the transformer area affected by incremental transaction of 'coal to electricity', organizing a 'coal to electricity' construction team to comprehensively carry out on-site mining and recording, meter wiring investigation and system ledger carding, and finishing the primary treatment work of all transformer areas; and for the area with unqualified storage, the organization power supply station develops problem troubleshooting from station to station and from family to family, and supervises to implement daily work plans. Effectively improve the qualification rate of the line loss of the sub-station area.
7. Cause analysis of negative damage distribution area
And the line loss treatment of the negative loss transformer area preferentially checks whether the check meter is in fault, whether the wiring is wrong and other general meter problems. And the negative loss transformer area needs to check the checking meter information on site, record the meter number and the CT transformation ratio in the system, check whether the meter number and the CT transformation ratio are consistent with the on-site checking, check whether the wiring is correct or not, use the clamp-on ammeter to measure the current and check the current (the current displayed by the ammeter and the CT transformation ratio) on the electric energy meter, check the wiring of the junction box CT of the electric energy meter if the difference exists, have problems and power failure and change, and consider replacing the meter and the CT if the difference does not exist.
1) The summary terminal block is not opened, resulting in a power supply of 0, which needs to be verified and processed on site.
2) The secondary wiring errors of the general meter, including wrong connection of a voltage line and a current line, cause less electric quantity of the general meter, and need to be checked and processed on site.
3) Photovoltaic platform district: the photovoltaic household self-generating power part is added into the sub-meter and not added into the general meter, so that the photovoltaic platform area is lower than the actual line loss and even has negative loss.
4) And the power relation is wrong, more households hang in the area, and the electric quantity of the sub-meter is more than that of the actual meter.
5) The CT transformation ratio is wrong, and the CT transformation ratio is not updated in the capacity increasing platform area, so that the summary table is smaller than the actual table.
8. Cause analysis of high-loss transformer area
The high-loss transformer area management mainly checks whether the system power relation is consistent with the site. The power relation is wrong, the number of hung households in the transformer area is small, and the electric quantity of the sub-meter is small. And checking whether the users of the PMS2.0(GIS1.6), the 186 system and the power utilization information acquisition system are consistent, if the users are inconsistent, checking the accurate user power relation on site, opening boxes to check all the metering boxes, and checking whether the power stealing behavior exists or not.
For a user or a metering box with a hanging error, under the 186 system acquisition and recording tool and the low-voltage filing data deleting function, the relation between the metering box and the electric energy meter is deleted, the metering box is deleted, data are re-introduced, and the meter box is deleted and the data are re-introduced in the GIS.
Changing the table: the meter change in the month causes that the electric quantity before the meter change is not counted by the acquisition system, and the station area occupation is large, thereby influencing the qualification rate.
The following two points need to be noted: firstly, a GIS system articulates a wrong metering box to delete tasks in a PMS2.0 system, so that the problem that a middle database cannot be synchronized is avoided; the second is that low voltage subscriber access points must be added to the PMS2.0 graph.
9. Special area processing proposal
1) Street lamp platform district: the preferential treatment is suggested, the users are few and simple, and the line loss is easy to be normal after the treatment.
2) Residential area: on the premise of accurate power supply, the line loss value of the transformer area is easy to be qualified due to stable electricity consumption of residents, and priority treatment is suggested. All residential district districts of valley are all qualified, and the residential district of horse mill promotes by a wide margin.
3) Photovoltaic platform district: photovoltaic households are prone to negative losses.
4) Coal power transformation district: most of the coal power transformation areas are newly added, and the number of hung households in the coal power transformation areas is relatively small, so that the coal power transformation areas are easy to process.
5) Seasonal platform area (water conservancy, etc.): some electric quantity exists in a certain period of time, and the electric quantity is not qualified easily in small electric quantity.
The invention also provides a preferred embodiment, and the preferred embodiment provides a line loss abnormity analysis method for the 10kV line. The method is described in detail as follows:
1. main flow of branch line loss control
According to the basic principle of daily analysis, weekly scheduling and monthly summary, daily meeting analysis problem data is held every day, discussion experience is exchanged together, and the promotion indexes are decomposed to each person in the working group according to the unit of power supply to perform individual benchmarking assessment; and coordinating and scheduling the contact list feedback condition and the issuing condition every week, finding out the deficiency, following up in time, making up the gap, and organizing and calling development strategy, operation and inspection, marketing, scheduling and power supply station coordination meetings for many times by a working group.
1) And exporting the monthly branch output electric quantity information, and analyzing the unqualified reason of the line by daily loss according to an electric quantity information acquisition system. Firstly, checking whether the switch number, the line name and the like of the transformer substation are correct or not, and if not, submitting the transformer substation to production professional processing.
2) And checking whether the CT transformation ratio of the transformer substation switch is correct, whether the meter bottom is missing, whether the meter bottom is abnormal, whether the meter bottom is dead, and the like, and if so, submitting to a regulation and control center for processing.
3) And checking whether the user table bottom has a deficiency, and if so, submitting to professional metering processing.
4) And checking whether the user is absent, and if the user is absent, checking whether the linear transformation relation is correct, and submitting the production professional treatment. And if the linear transformation relation is not problematic, checking 186 the condition of the system transformer area, if the transformer area is not split, submitting the reward part for splitting the transformer area, and if the transformer area special change is inconsistent with the PMS, submitting the special treatment for inspection.
5) Checking whether the meter hooking relation is correct or not, and if not, submitting the meter professional processing. And the line loss working group and the power supply station can be jointly subjected to field treatment to correct hanging errors.
6) Aiming at the influences of distribution network transformation and coal-to-electricity engineering, the related lines are timely treated after the engineering is finished, attention is continuously paid, and the problem of repeated disqualification is prevented while the line loss is qualified.
7) Aiming at the public problem of the special transformer, the public transformer, the conversion quantity and the user of the line to be managed are checked repeatedly, and are adjusted correctly in time and continuously paid attention to.
2. Problems in system management
The method mainly focuses on the prominent line-to-line transformation relation of the special transformer, the hanging error of high-voltage users and the line connection of low-voltage users are more, and the problems account for 50% of the checking problems. The operation inspection part uniformly issues unqualified branching treatment details to the information system room, and the information system room carries out line loss system searching for the power supply relation and acquisition condition of high-level users and transformer areas at the power selling end of the line according to the wire-to-wire relation table by taking an approval book, SCDCA and power supply drawing materials as the basis. The operation detection part is used for managing the line-to-transformer relation error problem, feeding back a high-rise client file, a metering point error and a high-rise collection problem to the marketing part, and supervising the marketing part to gradually improve basic data of a line-to-transformer area-metering point-meter relation in a PMS2.0 and SG186 system.
3. Collection and field verification aspects
The method aims at the problem of high-rise collection and the problem of missing the upper and lower bottoms of a signal unstable line. With meter failures accounting for approximately 50%, signal problems accounting for 30%, and the other 20% for meters operating with the marketing display off. The project group is expected to strengthen the functions of forward inquiry and backward inquiry; aiming at the situation that the underground station room cannot be collected for a long time, a signal amplifier is additionally arranged after approval; mainly aiming at the multiplying power of the meter and the wiring problem, if the debugging is not successful, the meter is replaced and the amplifier is arranged; the problem of the acquisition device is verified to be solved by survey; and the meter wiring errors are solved by adjusting the wiring.
In the process of managing the branch line loss, the data acquisition of the substation gateway table is found to have direct influence on the branch line loss. When the substation gateway meter is collected, the point sequence numbers of the collection points of the substation and the master station are inconsistent, so that the branching line loss is unbalanced.
4. High voltage user metering point hanging problem
For the hanging problem of the high-voltage user metering point, the hanging problem mainly exists in a double-way incoming line of a cable line, and the metering point serial number of a user field meter is inconsistent with the power utilization acquisition system acquisition serial number or a marketing 186 system metering point file. In the existing governing lines, high households with 60 lines need to shift gears, which account for about 40% of the governing lines; during the gear shifting work, the gear shifting accounts for 100 percent due to the hanging problem of the metering point.
5. Influence of changes in the operating mode of the power grid
The change of the power grid mode has great influence on the line loss. Firstly, a new transmission line generally has no upper surface freezing number, so that the calculation is influenced; and secondly, the circuit is changed, and each time one circuit is changed, the line loss of two circuits is influenced at least. Under the influence of a large number of coal power transformation and distribution network transformation projects in 2017, due to the fact that the accuracy of a model and the accuracy of collection in line loss management and the fact that relevant data are not maintained in a PMS2.0 and a marketing system in time due to freezing of a meter bottom, the relation between integrated electric quantity and lack of households, lack of lines or line variation in a line loss management system is incorrect, and the qualification level of 10 kilovolt branch line loss is influenced. Marketing business expansion projects also have similar common problems. And thirdly, the lines are mutually inverted and mutually brought. For example: when the Liujia river road has a fault in 10 months and 9 days, the flat K1035 switch rear section load is used for inverting the cavia road belt, so that the calculation accuracy of the line loss is influenced to a certain extent, and the qualified level of the 10 kilovolt line loss is influenced.
6. Integrated line loss system model inaccuracy problem
The inaccuracy of the calculation model is a main reason for the low line loss yield at present. The calculation model is derived from a linear variable relation of a PMS system, a table-table relation of a marketing 186 system and a freezing table bottom of an acquisition system, the three aspects are all unavailable, and inaccurate calculation can be caused by any one factor. Therefore, the emphasis of the current governance is still on governance of the system data.
7. Problem of special user
The existing system does not support special users, and the wireless variable relation is caused by no meter or meter, so that the line loss can not be calculated; and secondly, the power supply condition of an abnormal mode in the user is not supported, and line loss errors are caused when the user transformer is temporarily stopped and the transformer and a metering point are not on the same line.
8. Problem of line loss influenced by photovoltaic power generation
Photovoltaic power generation has a certain influence on 10kv line loss. For example: the line loss rates of the circuit in the one way of warming in the front of the water heater in the 9 months and the 10 months are respectively-1.96% and-13.33%, and the line is analyzed to have long-term negative line loss due to photovoltaic power generation.
9. Street lamp variable influence line loss problem
At present, the integrated electric quantity and line loss management system lacks a street lamp change, the problems belong to common problems by consulting a technical support background of Beijing company, and national network companies are organizing and researching, and then concentrate on a feedback solution.
10. Long-term high loss problem of line
For example, the long-term high line loss of 10 kilovolt lines such as seven-star electronic one, Zhongluoxing and the like is detected, and the detected integrated electric quantity and line loss management system does not cause user loss, and possibly meter hanging errors or electricity stealing and leakage behaviors need to be detected by related responsibility departments and units.
11. Public problem of special transformer
The problem of public use of a plurality of transformers is solved, and part of lines only have power supply quantity and do not sell electric quantity. Through analysis, the users carried under the line are all special changes. By checking the GIS1.6 system and the SG186 system, the inconsistent line-variable relations in the two systems are found, and users with inconsistent line-variable relations are not involved in a line loss system. And then, the problems are rectified through combing, and the line variation relationship between the GIS1.6 system and the SG186 system is consistent according to the actual site.
The private transformer is not officially used for title reception by companies, but with resident users, some transformer area general tables are not installed, so that transformer electric quantity data cannot be collected. Such problems need to be solved by a uniform arrangement scheme.
The invention also provides a preferable embodiment, and the preferable embodiment provides a bus balance line loss abnormity treatment method. The method is described in detail as follows:
the bus balance and the voltage and current loss monitoring of the gateway meter are carried out by continuously regulating and controlling the acquisition master station system of the transformer substation, the lack of fault positions of the meter in the station is coordinated and carried out in time, and the bus balance qualified rate is maintained to be 100%.
1. Problem of collection
The acquisition problem is interrupted to carry out field defect removal, and the variable ratio correction multiplying power can be corrected by checking and the formula is corrected, and the mother is qualified. In order to ensure the qualification rate of the prior master plate; the daily monitoring on all the switch electric quantity acquisition channels is enhanced, particularly the acquisition state of a key time point at the end of the early month and the end of the month is enhanced, and the defects are found in time, reported in time, processed in time and recovered in time. For example, the power acquisition of the next eight-family and east-minor-camp total stations is interrupted, the parent is qualified after the defects are processed on site, and the parent is qualified after the 110kV buses of the Anning village station and the zoo station are corrected by checking the transformation ratio and modifying the formula.
2. Computing model errors
And for the data model error of the bus balance calculation system, combing the theoretical calculation model station by contrasting the primary wiring diagram of the regional power grid.
3. Multiplying power problem
And checking the correction multiplying power of each switch device of the transformer substation one by combining the original marketing part, the OMS protection constant value list of the order management system and the transformer substation protection constant value list.
4. Problems of meter
The regulation and control center can deduce the metering problem of a certain metering point of a certain station by means of continuous monitoring of the electric quantity acquisition system and calculation and analysis of buses station by station and bus by bus, and arrange a maintenance team to timely finish the lack of the site. For example: because two meters on the 10kV bus side in the 110kV Von village transformer substation are not timely accessed to the electric quantity acquisition system after being replaced, the 10kV bus is unqualified. The regulation and control center finishes the electric quantity access, and the current mother average qualification rate is 100 percent.
5. Collector failure
Mainly through the incessant monitoring discovery problem of electric quantity collection system, especially whole station acquisition data's interruption, regulation and control center arranges that the maintenance team accomplishes the department and lacks within three days.
The invention also provides a preferable embodiment, and the preferable embodiment provides a method for treating the abnormal loss of the transmission line. The method is described in detail as follows:
according to the main network topology of the SCADA system, the power transmission line gateway inspection is carried out, meanwhile, the gateway meter voltage loss and current loss monitoring is carried out by means of the regulation and control substation collection master station system, the lack of fault positions of the meter meters entering the station is coordinated and developed in time, and the qualification rate of the branch line loss of the power transmission line is improved.
1. Problem of lack of voltage transformer PT in station
According to the actual conditions in the substation, the lack of PT in the substation is divided into two types, one type is a line (including bridge type connection, unit connection and abnormal connection) in a special connection mode in the substation; another is the absence of PTs in the substation due to historical legacy problems. Aiming at the condition that no PT exists in the substation, the dispatching control center reestablishes the relation of the buses without the PT in the substation in an opposite-end replacement mode, and sends the combed corresponding result to the background of the electric quantity system for maintenance, so that the bus leveling rate is improved after the white list is cancelled.
2. Problem of calculation model
And for the line with the problem of the calculation model, the trend of the line load flow is combed one by contrasting the regional power grid structure diagram, and the correction model is redefined.
3. Problem of measurement
The meter without feeding and feeding out is not in a word-out state theoretically, but in practice, the meter has word-out due to mechanical loss in the meter, and particularly for the meter with relatively large multiplying power, the word-out at each point generates great power consumption loss, so that the line calculation loss is overlarge; for the user station, the opposite party attendant is called one by one, and the in-station connection mode and the used metering meter are verified; for the calculation problem caused by the same supply and sale table, the regulation and control center and the reward part are verified one by one to make a description,
compared with the prior art, the embodiment can effectively improve the line loss qualification rate by applying the line loss abnormity analysis method, so that the line loss rate is more real and reliable, the actual situation of a field is reflected as much as possible, a technical basis is provided for subsequent cost reduction and efficiency improvement, and a technical support is provided for actual production and management and lean management.
According to the embodiment of the present invention, an embodiment of an apparatus for determining a line loss anomaly is further provided, and it should be noted that the apparatus for determining a line loss anomaly may be used to execute the method for determining a line loss anomaly in the embodiment of the present invention, that is, the method for determining a line loss anomaly in the embodiment of the present invention may be executed in the apparatus for determining a line loss anomaly.
Fig. 2 is a schematic diagram of an apparatus for determining a line loss abnormality according to an embodiment of the present invention, and as shown in fig. 2, the apparatus for determining a line loss abnormality may include:
the obtaining unit 21 monitors data of line loss abnormality in a predetermined time period through a preset system, where the preset system includes at least one of: marketing system and contemporaneous line loss system.
And the first determining unit 23 is configured to analyze the abnormal data and determine a factor affecting the line loss.
And an adjusting unit 25, configured to eliminate factors affecting the line loss according to a predetermined sequence, and adjust the line loss abnormal phenomenon.
It should be noted that the obtaining unit 21 in this embodiment may be configured to execute step S102 in this embodiment of the present invention, the first determining unit 23 in this embodiment may be configured to execute step S104 in this embodiment of the present invention, and the adjusting unit 25 in this embodiment may be configured to execute step S106 in this embodiment of the present invention. The modules are the same as the corresponding steps in the realized examples and application scenarios, but are not limited to the disclosure of the above embodiments.
Optionally, the apparatus may further include: the second determining unit is used for determining that factors influencing the line loss at least comprise one of the following factors when the abnormal line loss data of the 10 kilovolt station area are analyzed: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box and an ammeter.
Optionally, the apparatus may further include: and the third determining unit is used for determining that factors influencing the line loss at least comprise one of the following factors when the abnormal line loss data of the 10 kilovolt line is analyzed: whether the switch number of the transformer substation is correct or not, whether the line name is correct or not, whether the CT transformation ratio of the transformer substation switch is correct or not, whether the bottom of a user meter is missing or not, whether the user is missing or not and whether the meter hooking relation is correct or not are determined.
According to another aspect of the present invention, there is also provided a storage medium including a stored program, where the program is executed to control a device on which the storage medium is located to perform the above method for determining a loss anomaly.
According to another aspect of the present invention, an embodiment of the present invention further provides a processor, where the processor is configured to execute a program, where the program executes the method for determining a line loss exception described above.
According to another aspect of the embodiments of the present invention, there is also provided a storage medium including a stored program, where the program when executed controls a device on which the storage medium is located to perform the following operations: monitoring abnormal data of line loss in a preset time period through a preset system, wherein the preset system comprises at least one of the following data: a marketing system and a contemporaneous line loss system; analyzing the abnormal data to determine factors influencing line loss; and eliminating factors influencing the line loss according to a preset sequence, and adjusting the line loss abnormal phenomenon.
According to another aspect of the embodiments of the present invention, there is also provided a processor, configured to execute a program, where the program executes the following operations: monitoring abnormal data of line loss in a preset time period through a preset system, wherein the preset system comprises at least one of the following data: a marketing system and a contemporaneous line loss system; analyzing the abnormal data to determine factors influencing line loss; and eliminating factors influencing the line loss according to a preset sequence, and adjusting the line loss abnormal phenomenon.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A method of determining line loss anomalies, comprising:
monitoring data of line loss abnormity in a preset time period through a preset system, wherein the preset system comprises at least one of the following components: a marketing system and a contemporaneous line loss system;
analyzing the abnormal data to determine factors influencing the line loss;
eliminating factors influencing the line loss according to a preset sequence, and adjusting the line loss abnormal phenomenon;
when analyzing the abnormal line loss data of the 10kV transformer area, determining that factors influencing the line loss at least comprise one of the following factors: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box-ammeter;
when analyzing abnormal line loss data of a 10kV transformer area, adjusting factors influencing the line loss according to a preset sequence, wherein the preset sequence comprises the following steps: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box and an ammeter.
2. The method of claim 1,
when analyzing the abnormal data of the bus balance and the line loss of the power transmission line, determining that the factors influencing the line loss at least comprise one of the following factors: meter decompression problem, loss of flow detection problem.
3. An apparatus for determining line loss anomalies, comprising:
the acquisition unit monitors abnormal line loss data in a preset time period through a preset system, wherein the preset system comprises at least one of the following components: a marketing system and a contemporaneous line loss system;
the first determining unit is used for analyzing the abnormal data and determining factors influencing the line loss;
the adjusting unit is used for eliminating factors influencing the line loss according to a preset sequence and adjusting the line loss abnormal phenomenon;
the second determining unit is used for determining factors influencing the line loss when the abnormal line loss data of the 10kV transformer area are analyzed, wherein the factors influencing the line loss at least comprise one of the following factors: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box-ammeter;
wherein the apparatus is further configured to: when analyzing abnormal line loss data of a 10kV transformer area, adjusting factors influencing the line loss according to a preset sequence, wherein the preset sequence comprises the following steps: the system comprises a transformer-household hanging relation, a transformer machine account, an acquisition device machine account, a low-voltage line machine account, a low-voltage user metering box and an ammeter.
4. A storage medium, characterized in that the storage medium comprises a stored program, wherein when the program is run, a device in which the storage medium is located is controlled to execute the method for determining a line loss abnormality according to claim 1 or 2.
5. A processor for running a program, wherein the program is run to perform the method of determining a line loss anomaly of claim 1 or 2.
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