CN116223966A - Line loss monitoring and positioning system and line loss monitoring and positioning method - Google Patents
Line loss monitoring and positioning system and line loss monitoring and positioning method Download PDFInfo
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- CN116223966A CN116223966A CN202211550658.0A CN202211550658A CN116223966A CN 116223966 A CN116223966 A CN 116223966A CN 202211550658 A CN202211550658 A CN 202211550658A CN 116223966 A CN116223966 A CN 116223966A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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Abstract
The invention discloses a line loss monitoring and positioning system, which belongs to the field of power equipment and data processing, and solves the problems that the monitoring efficiency is low and an error line cannot be positioned. The invention is mainly used for effectively improving the efficiency of line loss monitoring and realizing quick and accurate positioning of the error line. Still another object of the present invention is to disclose a line loss monitoring and positioning method.
Description
Technical Field
The invention relates to the field of power equipment and data processing, in particular to a line loss monitoring and positioning system and a line loss monitoring and positioning method.
Background
The line loss management is an important business content of power consumption management of a power supply enterprise, the line loss rate is used as an important economic and technical index of the power supply enterprise, reflects the comprehensive management level of the electric power, and is one of core indexes for developing energy conservation and emission reduction. Under the condition of normal power consumption of the line, the line loss rate of the line is basically stable, and the fluctuation of the daily electric quantity of a single user under the line has little influence on the line loss rate. If a line is wrongly maintained, a user with a line change attribution error is added into a line, the larger the electricity consumption of the user is, the lower the line loss rate of the line is, and a strong negative correlation exists between the electricity consumption of the user and the line loss rate of the line.
In the prior art, a power supply enterprise monitors line loss, usually monitors all electric meters in a family-close manner, then calculates data of collected electric meters one by one to obtain line loss rate, the period of obtaining the line loss is longer, the workload of basic staff is larger, the monitoring efficiency is lower, the situation that the line loss is abnormal can not be located and prevented in time is caused, the waste of the loss is larger, and an error line can not be located.
Disclosure of Invention
The invention aims to provide a line loss monitoring and positioning system, which solves the problems that the monitoring efficiency is low and an error line cannot be positioned in the prior art, effectively improves the efficiency of line loss monitoring and realizes quick and accurate positioning of the error line.
In order to achieve the above purpose, the invention adopts the following technical scheme: the line loss monitoring and positioning system comprises a data acquisition unit, a data storage unit, a data analysis unit and a display alarm unit, wherein the data acquisition unit is used for acquiring branch node data and converting the branch node data into electric signals, the data storage unit comprises a theoretical line loss storage unit, a real-time data storage unit and a comparison result storage unit, the real-time data storage unit is used for receiving the electric signals sent by the data acquisition unit and storing the electric signals, the data analysis unit comprises a grading unit, a calculation unit and a comparison unit, the grading unit is used for dividing the data stored by the real-time data storage unit according to the layers of the subareas, the partial pressures, the branching and the separation areas, the calculation unit is used for calculating the actual line loss rate of the subareas, the partial pressures, the branching and the separation areas, the comparison unit is used for comparing the actual line loss rate of the subareas, the partial pressures, the branching and the separation areas with the theoretical line loss rate and storing the comparison result into the comparison result storage unit, and the display alarm unit is used for positioning abnormal subareas, the partial pressures, the branching and sending an alarm to remind a system administrator according to the comparison result.
After the technical scheme is adopted, the invention has the following advantages: firstly, set up data acquisition unit and be used for automatic acquisition electric power data, need not basic unit staff and just check the meter reading to all ammeter from home to home, alleviate work load, it is higher to gather electric power data effect, also can reduce the human cost, secondly, carry out the classification with data according to subregion, bleeder, separated time, subregion district, then calculate step by step, compare to data, form the unusual tracking analysis of link formula, more quick, accurately fix the wrong circuit that causes the line loss rate unusual, thereby can in time, effectively administer wrong circuit, make line loss management more scientific, be favorable to improving the benefit of energy-conserving loss reduction.
Further, the data acquisition unit comprises a voltage transformer for acquiring the voltage of the branch node and a current transformer for acquiring the current of the branch node. After the technical scheme is adopted, the result is simple, the cost is lower, and the branch node data can be acquired more accurately, so that the monitoring is more accurate.
Further, the line loss monitoring and positioning system also comprises a remote communication unit for sending an alarm to the base staff. After the technical scheme is adopted, the alarm can be sent to the base staff in time, so that the base staff can reach the abnormal position of the line loss more in time and stop in time.
Further, the remote communication unit comprises a WiFi unit and a 4G/5G unit. After the technical scheme is adopted, the data transmission is more stable and high-speed, and the basic staff is informed in time.
Further, the line loss monitoring and positioning system further comprises a timer, wherein the timer is used for controlling the time interval of the acquisition unit for acquiring the data of the branch node twice. After the technical scheme is adopted, the time interval for monitoring the line loss is more reasonable, and the abnormal condition of the line loss can be found in time and prevented.
It is still another object of the present invention to provide a line loss monitoring and positioning method, which overcomes the problems of low monitoring efficiency and no need of timely positioning line loss abnormality in the prior art, further improves the efficiency of line loss monitoring, and more timely positions line loss abnormality.
In order to achieve the above purpose, the invention adopts the following technical scheme: the invention relates to a line loss monitoring and positioning method, which adopts the line loss monitoring and positioning system, and comprises the following steps: step S1, a timer controls an acquisition unit to acquire data of a branch node at regular time, and converts the acquired data into an electric signal to be stored in a real-time data storage unit;
step S2: the grading unit divides the data stored in the real-time data storage unit according to the levels of the subareas, the partial pressures, the branching lines and the subareas;
step S3: the calculation unit calculates the actual line loss rate of the partition, the comparison unit compares the actual line loss rate of the partition with the theoretical line loss rate of the partition in the theoretical line loss storage unit, and if the actual line loss rate of the partition is abnormal, the step S4 is carried out;
step S4: the calculation unit calculates the actual line loss rate of the partial pressure, the comparison unit compares the actual line loss rate of the partial pressure with the theoretical line loss rate of the partial pressure in the theoretical line loss storage unit, if the actual line loss rate is normal, the display alarm unit locates the abnormal partition in the step S3 according to the comparison result and sends out an alarm to remind a system administrator, and if the actual line loss rate of the partial pressure is abnormal, the step S5 is carried out;
step S5: the calculation unit calculates the actual line loss rate of the branching, the comparison unit compares the actual line loss rate of the branching with the theoretical line loss rate of the branching in the theoretical line loss storage unit, if the actual line loss rate of the branching is normal, the display alarm unit locates abnormal partial pressure in the step S4 according to the comparison result and gives an alarm to remind a system administrator, and if the actual line loss rate of the branching is abnormal, the step S5 is carried out;
step S6: the calculation unit calculates the actual line loss rate of the branch area, the comparison unit compares the actual line loss rate of the branch area with the theoretical line loss rate of the branch area in the theoretical line loss storage unit, if the actual line loss rate is normal, the display alarm unit positions the abnormal branching line in the step S5 according to the comparison result and gives an alarm to remind a system administrator, and if the actual line loss rate is abnormal, the display alarm unit positions the abnormal branch area according to the comparison result to give an alarm to remind the system administrator.
After the technical scheme is adopted, the invention has the following advantages: the data are classified according to the partition, the partial pressure, the branching and the partition, then the data are calculated and compared step by step, so that a link type anomaly tracking analysis is formed, and an error line causing the line loss rate anomaly is more rapidly and accurately positioned, so that the error line can be timely and effectively treated, all the data are not required to be analyzed, the efficiency is higher, and the line loss anomaly is more timely positioned.
Further, in the steps S3, S4, S5 and S6, the actual line loss rate of the subareas, partial pressures, branching lines and branch areas is D1, the theoretical line loss rate of the subareas, partial pressures, branching lines and branch areas is D2, if D1 is more than 6% and D2 is more than 6%, D1-D2 is less than 2%, the line loss is judged to be abnormal, and if D1 is less than or equal to 6% or D2 is less than or equal to 6% or D1-D2 is less than or equal to 2%, the line loss is judged to be no abnormality. After the technical scheme is adopted, the line loss rate and the difference value between the line loss rate and the target line loss rate are reasonably set, so that an error line causing line loss abnormality is more accurately positioned.
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The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a line loss monitoring and positioning system according to the present invention;
in the figure, 1, a data acquisition unit; 2. a timer; 31. a theoretical line loss storage unit; 32. a real-time data storage unit; 33. a comparison result storage unit; 41. a classifying unit; 42. a calculation unit; 43. a comparison unit; 5. a display alarm unit; 6. a remote communication unit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of each process is not meant to indicate the order of execution, and the order of execution of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present invention, "comprising" and "having" and any variations thereof are intended to cover 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 that are expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present invention, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, for example, X and/or Y may represent: x alone, X and Y together, and Y alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising X, Y and Z", "comprising X, Y, Z" means that all three of X, Y, Z comprise, "comprising X, Y or Z" means that one of the three comprises X, Y, Z, and "comprising X, Y and/or Z" means that any one or any two or three of the three comprise X, Y, Z.
The technical scheme of the invention is described in detail below by specific examples. The following specific embodiments may be combined with or replaced with each other according to actual situations, and the same or similar concepts or processes may not be described in detail in some embodiments.
Embodiment one:
as shown in fig. 1, the invention provides a line loss monitoring and positioning system, which comprises a data acquisition unit 1, a data storage unit, a data analysis unit and a display alarm unit 5, wherein the data acquisition unit 1 is used for acquiring branch node data and converting electrical signals, the data storage unit comprises a theoretical line loss storage unit 31, a real-time data storage unit 32 and a comparison result storage unit 33, the real-time data storage unit 32 is used for receiving and storing the electrical signals sent by the data acquisition unit 1, the data analysis unit comprises a grading unit 41, a calculation unit 42 and a comparison unit 43, the grading unit 41 is used for dividing the data stored by the real-time data storage unit 32 according to the levels of the partition, the partial pressure, the branching and the partition area, the calculation unit 42 is used for calculating the actual line loss rate of the partition, the partial pressure, the branching and the partition area, the comparison unit 43 is used for comparing the actual line loss rate of the partition area with the theoretical line loss rate and storing the comparison result to the comparison result storage unit 33, and the display alarm unit 5 is used for positioning abnormal partition, the partial pressure, branching and the partition area according to the comparison result and sending an alarm system administrator.
Firstly, set up data acquisition unit 1 and be used for automatic acquisition electric power data, need not basic unit staff and just check the meter reading to all ammeter from home to home, alleviate work load, it is higher to gather electric power data effect, also can reduce human cost, secondly, carry out the classification with data according to subregion, bleeder, separated time, subregion district, then calculate step by step, compare to data, form the unusual tracking analysis of link formula, more quick, pinpoint to the wrong circuit that causes the line loss rate unusual, thereby can in time, effectively administer wrong circuit, make line loss management more scientific, be favorable to improving the benefit of energy-conserving loss reduction.
The back end of the line loss monitoring and positioning system is constructed based on the SpringBoot, integrates the SpringCloud technology to establish a micro-server system, and integrates the Mybatis persistent layer framework to provide access to a database. The front-end uses VUE+ELEUI mutual flow network popular technology, and maintains the technical advancement and the front-end system.
Specifically, the data acquisition unit 1 includes a voltage transformer for acquiring the voltage of the branch node and a current transformer for acquiring the current of the branch node. The method has the advantages of simple result and lower cost, and can also collect branch node data more accurately, thereby ensuring more accurate monitoring.
In order to timely troubleshoot and refrain from line loss anomalies, the line loss monitoring and positioning system further includes a remote communication unit 6 for sending an alarm to the base level staff. The alarm can be sent to the basic staff in time, so that the basic staff can arrive at the abnormal position of the line loss more in time and stop in time.
In this embodiment, the remote communication unit 6 includes a WiFi unit and a 4G/5G unit. The data transmission is more stable and high-speed, and the basic staff is informed in time.
It will be appreciated that reasonable units such as Beidou satellite units may also be employed by the remote communication unit 6.
In order to make the line loss monitoring more reasonable, the line loss monitoring and positioning system further comprises a timer 2 for controlling the time interval between two adjacent acquisition units for acquiring the data of the branch nodes. After the technical scheme is adopted, the time interval for monitoring the line loss is more reasonable, and the abnormal condition of the line loss can be found in time and prevented.
In the invention, the time interval between two adjacent collection branch nodes is half an hour. Of course, in other embodiments, it may be a reasonable time interval of 10 minutes, 20 minutes, etc.
Embodiment two:
in this embodiment, a line loss monitoring and positioning method is provided, and the line loss monitoring and positioning system provided by the invention includes the following steps: step S1, a timer 2 controls an acquisition unit to acquire data of a branch node at fixed time, and converts the acquired data into an electric signal to be stored in a real-time data storage unit 32;
step S2: the classifying unit 41 classifies the data stored in the real-time data storage unit 32 according to the hierarchy of the division, partial pressure, branching, and the partition area;
step S3: the calculation unit 42 calculates the actual line loss rate of the partition, the comparison unit 43 compares the actual line loss rate of the partition with the theoretical line loss rate of the partition in the theoretical line loss storage unit 31, and if not, S4 is performed;
step S4: the calculation unit 42 calculates the actual line loss rate of the partial pressure, the comparison unit 43 compares the actual line loss rate of the partial pressure with the theoretical line loss rate of the partial pressure in the theoretical line loss storage unit 31, if normal, the display alarm unit 5 locates the abnormal partition in the step S3 according to the comparison result and sends out an alarm to remind the system administrator, if abnormal, the step S5 is performed;
step S5: the calculation unit 42 calculates the actual line loss rate of the branching, the comparison unit 43 compares the actual line loss rate of the branching with the theoretical line loss rate of the branching in the theoretical line loss storage unit 31, if normal, the display alarm unit 5 locates the abnormal partial pressure in the step S4 according to the comparison result and gives an alarm to remind the system administrator, if abnormal, the step S5 is performed;
step S6: the calculation unit 42 calculates the actual line loss rate of the branch area, the comparison unit 43 compares the actual line loss rate of the branch area with the theoretical line loss rate of the branch area in the theoretical line loss storage unit 31, if normal, the display alarm unit 5 locates the abnormal branching line in the step S5 according to the comparison result and gives an alarm to remind the system administrator, and if abnormal, the display alarm unit 5 locates the abnormal branch area according to the comparison result to give an alarm to remind the system administrator.
The method is adopted: the data are classified according to the partition, the partial pressure, the branching and the partition, then the data are calculated and compared step by step, so that a link type anomaly tracking analysis is formed, and an error line causing the line loss rate anomaly is more rapidly and accurately positioned, so that the error line can be timely and effectively treated, all the data are not required to be analyzed, the efficiency is higher, and the line loss anomaly is more timely positioned.
In the invention, the actual line loss rate of the subareas, the partial pressures, the branching lines and the branch areas in the steps S3, S4, S5 and S6 is D1, the theoretical line loss rate of the subareas, the partial pressures, the branching lines and the branch areas is D2, if D1 is more than 6 percent and D2 is more than 6 percent, D2 percent is less than-2 percent and less than 1-D2 percent, the line loss is judged to be abnormal, and if D1 is less than or equal to 6 percent, D2 is less than or equal to 6 percent, D1-D2 is less than or equal to-2 percent, or D1-D2 is more than or equal to 2 percent, and the line loss is judged to be no abnormality. By reasonably setting the line loss rate and the difference value between the line loss rate and the target line loss rate, an error line causing line loss abnormality is more accurately positioned.
It should be noted that the power supply amount of the line detected by the invention is more than 100kWh.
Other matters not described in this embodiment can refer to embodiment one.
In addition to the preferred embodiments described above, other embodiments of the present invention are also contemplated as falling within the scope of the claimed invention, as well as all other embodiments that may be made by one of ordinary skill in the art without making any inventive effort based on the embodiments of the present invention.
Claims (7)
1. The line loss monitoring and positioning system is characterized by comprising a data acquisition unit, a data storage unit, a data analysis unit and a display alarm unit, wherein the data acquisition unit is used for acquiring branch node data and converting the branch node data into electric signals, the data storage unit comprises a theoretical line loss storage unit, a real-time data storage unit and a comparison result storage unit, the real-time data storage unit is used for receiving the electric signals sent by the data acquisition unit and storing the electric signals, the data analysis unit comprises a grading unit, a calculation unit and a comparison unit, the grading unit is used for dividing the data stored by the real-time data storage unit according to the levels of the subareas, the partial pressures, the branching lines and the subareas, the calculation unit is used for calculating the actual line loss rates of the subareas, the partial pressures, the branching lines and the subareas, the comparison unit is used for comparing the actual line loss rates of the subareas, the partial pressures, the branching lines and the subareas with the theoretical line loss rates and storing the comparison result into the comparison result storage unit, and the display alarm unit is used for positioning abnormal subareas, the partial pressures, the branching lines and the subareas and giving an alarm system manager according to the comparison result.
2. The line loss monitoring and positioning system of claim 1, wherein the data acquisition unit comprises a voltage transformer for acquiring the voltage of the branch node and a current transformer for acquiring the current of the branch structure.
3. The line loss monitoring and positioning system of claim 1, further comprising a remote communication unit for sending an alert to a base level worker.
4. The line loss monitoring and positioning system of claim 3, wherein the remote communication unit comprises a WiFi unit and a 4G/5G unit.
5. The line loss monitoring and positioning system of claim 1, further comprising a timer for controlling a time interval between two adjacent acquisition units to acquire data of the branch node.
6. A line loss monitoring and positioning method, which adopts the line loss monitoring and positioning system as claimed in any one of claims 1 to 5, and is characterized by comprising the following steps: step S1, a timer controls an acquisition unit to acquire data of a branch node at regular time, and converts the acquired data into an electric signal to be stored in a real-time data storage unit;
step S2: the grading unit divides the data stored in the real-time data storage unit according to the levels of the subareas, the partial pressures, the branching lines and the subareas;
step S3: the calculation unit calculates the actual line loss rate of the partition, the comparison unit compares the actual line loss rate of the partition with the theoretical line loss rate of the partition in the theoretical line loss storage unit, and if the actual line loss rate of the partition is abnormal, the step S4 is carried out;
step S4: the calculation unit calculates the actual line loss rate of the partial pressure, the comparison unit compares the actual line loss rate of the partial pressure with the theoretical line loss rate of the partial pressure in the theoretical line loss storage unit, if the actual line loss rate is normal, the display alarm unit locates the abnormal partition in the step S3 according to the comparison result and sends out an alarm to remind a system administrator, and if the actual line loss rate of the partial pressure is abnormal, S5 is carried out;
step S5: the calculation unit calculates the actual line loss rate of the branching, the comparison unit compares the actual line loss rate of the branching with the theoretical line loss rate of the branching in the theoretical line loss storage unit, if the actual line loss rate of the branching is normal, the display alarm unit locates abnormal partial pressure in the step S4 according to the comparison result and gives an alarm to remind a system administrator, and if the actual line loss rate of the branching is abnormal, the step S5 is carried out;
step S6: the calculation unit calculates the actual line loss rate of the branch area, the comparison unit compares the actual line loss rate of the branch area with the theoretical line loss rate of the branch area in the theoretical line loss storage unit, if the actual line loss rate is normal, the display alarm unit positions the abnormal branching line in the step S5 according to the comparison result and gives an alarm to remind a system administrator, and if the actual line loss rate is abnormal, the display alarm unit positions the abnormal branch area according to the comparison result to give an alarm to remind the system administrator.
7. The line loss monitoring and positioning method according to claim 6, wherein the actual line loss rate of the subareas, the partial pressures, the branching lines and the branch areas in the steps S3, S4, S5 and S6 is D1, the theoretical line loss rate of the subareas, the partial pressures, the branching lines and the branch areas is D2, if D1 is more than 6% and D2 is more than 6%, and-2% < D1-D2 is less than 2%, the line loss is judged to be abnormal, and if D1 is less than or equal to 6%, or D2 is less than or equal to 6%, or-2% is less than or equal to D1-D2, or D1-D2 is less than or equal to 2%, the line loss is judged to be abnormal.
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