CN217305382U - On-line monitoring device and on-line monitoring system for synchronous line loss and electricity stealing prevention - Google Patents
On-line monitoring device and on-line monitoring system for synchronous line loss and electricity stealing prevention Download PDFInfo
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- CN217305382U CN217305382U CN202220670661.5U CN202220670661U CN217305382U CN 217305382 U CN217305382 U CN 217305382U CN 202220670661 U CN202220670661 U CN 202220670661U CN 217305382 U CN217305382 U CN 217305382U
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- 238000004891 communication Methods 0.000 claims abstract description 19
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The utility model relates to a line loss and anti-electricity-stealing's on-line monitoring device and on-line monitoring system in same period, it includes: the mutual inductor is used for collecting line power frequency voltage and current; the processor is connected with the mutual inductor and used for receiving the voltage and the current and calculating the instantaneous power of the point to be detected on the circuit according to the voltage and the current; and the communication module is communicated with the processor and the master station, the communication module is used for sending the instantaneous power of the point locations to be detected to the master station, and the master station is used for calculating the line loss between the point locations to be detected according to the instantaneous power of the point locations to be detected. The utility model relates to a pair of on-line monitoring device and on-line monitoring system of line loss and anti-electricity-stealing in same period can real-time online monitoring line route loss, need not to rely on the ammeter, can independently gather line data, the problem of line loss rate calculated result neglecting high suddenly low can not appear.
Description
Technical Field
The utility model relates to a distribution network line technical field, in particular to on-line monitoring device and on-line monitoring system of contemporaneous line loss and anti-electricity-stealing.
Background
At present, in order to further improve the lean management level of the line loss of the power distribution network, national network companies start 'four-quarter' line loss management, and require to refine medium and low voltage line loss control and realize 10 kilovolt line distribution management.
In the related technology, the cycle of reading the power supply quantity and the power sale quantity is not uniform, so that the line loss rate is large in fluctuation, the high loss and negative loss conditions often occur, the objective indexes can seriously distort and cover the problems in the line loss management, great difficulty is brought to pertinently taking loss reduction measures, and the supervision and guidance functions of the line loss indexes in the power company are weakened.
Therefore, there is a need to design an on-line monitoring device and an on-line monitoring system for preventing line loss and electricity stealing in the same period so as to overcome the above problems.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an online monitoring device and online monitoring system of contemporaneous line loss and anti-electricity-stealing to statistics line loss supplies, selling the electric quantity cycle inequality and result in appearing the problem that line loss rate calculated result is suddenly high suddenly low in solving correlation technique.
In a first aspect, an on-line monitoring device for line loss and electricity stealing prevention in the same period is provided, which comprises: the mutual inductor is used for collecting line power frequency voltage and current; the processor is connected with the mutual inductor and used for receiving the voltage and the current and calculating the instantaneous power of the point to be detected on the circuit according to the voltage and the current; and the communication module is communicated with the processor and the master station, the communication module is used for sending the instantaneous power of the point locations to be detected to the master station, and the master station is used for calculating the line loss between the point locations to be detected according to the instantaneous power of the point locations to be detected.
In some embodiments, the transformers include a voltage transformer for collecting line power frequency voltage and a current transformer for collecting line power frequency current.
In some embodiments, the mutual inductor is connected with a signal processor, and the signal processor is used for amplifying, filtering and converting the analog quantity of the voltage and the current into a digital quantity; the on-line monitoring device also comprises a memory, wherein the memory is connected with the signal processor and the processor and is used for storing the digital quantity of the voltage and the current and sending the digital quantity of the voltage and the current to the processor.
In some embodiments, the online monitoring device further includes a bluetooth module, the bluetooth module is connected to the processor, and the bluetooth module is configured to send the voltage and the current, which are currently collected and processed by the online monitoring device, to the processor of the online detection device of another phase line.
In some embodiments, the online monitoring device further includes a watchdog, the watchdog is connected to the processor, and the watchdog is configured to send an automatic reset signal to the processor when it is monitored that the program of the processor is abnormally operated.
In some embodiments, the on-line monitoring device further comprises a reset circuit connected to the processor, the reset circuit for manually resetting the processor.
In some embodiments, the online monitoring device further includes a Beidou time service module, and the Beidou time service module is connected to the processor and is configured to provide a time service signal for the online monitoring device, so as to implement synchronous sampling.
In some embodiments, the online monitoring device further comprises a power module, the power module is connected to the communication module, and the power module is connected to the processor.
In a second aspect, an online monitoring system for a power grid is provided, which includes: the on-line monitoring device comprises a circuit and on-line monitoring devices installed on different point positions to be measured of the circuit, wherein the on-line monitoring devices adopt the on-line monitoring devices with the synchronous line loss and the electricity stealing prevention.
In some embodiments, one online monitoring device is respectively installed on each phase line of the same point to be detected of the circuit, the online monitoring device on one phase line of the point to be detected collects voltages and currents of all the online monitoring devices at the point to be detected, and the instantaneous power of the point to be detected is calculated according to the voltages and currents of all the online monitoring devices.
The utility model provides a beneficial effect that technical scheme brought includes:
the embodiment of the utility model provides a synchronous line loss and anti-electricity-stealing's on-line monitoring device and on-line monitoring system, because the mutual-inductor can gather the power frequency voltage and the electric current of circuit, and can send voltage and current information to the treater, the instantaneous power of this position department of awaiting measuring can be calculated according to voltage and current information to the treater, the main website can calculate the line loss between the position of awaiting measuring according to the instantaneous power of each position of awaiting measuring, therefore, can real-time online monitoring line route loss, need not to rely on the ammeter, can independently gather circuit data, the problem of line loss rate computational result neglecting high and neglecting low can not appear.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an online monitoring device for simultaneous line loss and electricity stealing prevention according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an online power grid monitoring system provided by an embodiment of the present invention.
In the figure:
1. a transformer; 11. a voltage transformer; 12. a current transformer;
2. a processor; 3. a communication module; 4. a master station; 5. a signal processor; 6. a memory; 7. a Bluetooth module; 8. a watchdog; 9. a reset circuit; 10. a Beidou time service module; 13. a power supply module;
100. provided is an online monitoring device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in 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 obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a with line loss and anti-electricity-stealing's on-line monitoring device and on-line monitoring system, it can solve statistics line loss supply among the correlation technique, sell electric quantity cycle inequality and result in appearing the problem that the line loss rate calculated result is neglected to hang down suddenly.
Referring to fig. 1, an online monitoring device 100 for monitoring power loss and preventing electricity stealing in the same period provided by an embodiment of the present invention may include: the transformer 1 is used for collecting line power frequency voltage and current, when the transformer 1 is used, the transformer 1 can be connected with a line, and the transformer 1 can output collected voltage and current signals; the processor 2 is connected with the transformer 1, wherein the processor 2 preferably adopts an embedded processor 2, and the processor 2 may be directly connected with the transformer 1 or indirectly connected with the transformer 1, so that the processor 2 can receive voltage and current information, and the processor 2 can calculate instantaneous power of a point to be detected on a circuit according to the voltage and the current, where the point to be detected is also the installation position of the on-line monitoring device 100; the communication module 3 can be communicated with the processor 2 and the main station 4 to realize remote communication with the main station 4; that is to say, the communication module 3 is connected to both the processor 2 and the master station 4, so that information in the processor 2 can be sent to the master station 4 through the communication module 3, in this embodiment, a 4G or 5G communication module 3 is preferred, the communication module 3 is configured to send the instantaneous power of the point to be detected to the master station 4, and the master station 4 is configured to calculate line loss between the point to be detected according to the instantaneous power of each point to be detected; that is to say, the master station 4 can be connected with the communication modules 3 of the plurality of online monitoring devices 100, so that the master station 4 can receive the instantaneous power measured by the plurality of online monitoring devices 100, and the master station 4 can calculate the line loss between at least two points to be measured, and when the line loss difference between two points to be measured is greater than a set threshold, it is determined that there is an electricity stealing behavior between the two points to be measured.
The online monitoring device 100 of the embodiment can monitor whether the line is damaged or not and whether the anti-electricity-stealing behavior exists on the line or not in real time, and the online monitoring device 100 can adopt an integrated design, does not need to depend on an ammeter, can automatically acquire line data, and has the characteristics of high integration level, high power supply reliability and the like; the problem that the line loss rate calculation result is not high or low can not occur.
Preferably, the processor 2 may select a powerful STM32F103 chip as the device main controller, so as to control the operation of each module. And the processor 2 calculates the instantaneous power of the point to be measured to be the four-quadrant power.
Further, in some embodiments, referring to fig. 1, the transformer 1 may include a voltage transformer 11 and a current transformer 12, where the voltage transformer 11 is configured to collect line power frequency voltage, and the current transformer 12 is configured to collect line power frequency current; the voltage transformer 11 and the current transformer 12 are arranged independently, and can collect voltage and current independently without mutual interference.
In some alternative embodiments, referring to fig. 1, the transformer 1 may be connected to a signal processor 5, and the signal processor 5 is configured to amplify, filter and then convert analog quantities of voltage and current into digital quantities, where, when the transformer 1 includes a voltage transformer 11 and a current transformer 12, the voltage transformer 11 is connected to the voltage signal processor 5, and the current transformer 12 is connected to the current signal processor 5, that is, two signal processors 5 are correspondingly disposed; the signal processor 5 may include a signal amplifying circuit, a filtering circuit, an a/D conversion circuit, and the like, so that the signal processor 5 may convert the collected analog values of the voltage and the current into digital values after operations such as amplification and filtering; the on-line monitoring device 100 may further include a memory 6, the memory 6 is connected to the signal processor 5 and the processor 2, the memory 6 is configured to store the digital values of the voltage and the current and transmit the digital values of the voltage and the current to the processor 2, that is, the signal processor 5 may transmit the converted digital values to the memory 6 for storage, and when the device is needed to be used, the memory 6 may transmit the digital values of the voltage and the current to the processor 2 again.
Referring to fig. 1, preferably, the online monitoring device 100 may further include a bluetooth module 7, the bluetooth module 7 is connected to the processor 2, the bluetooth module 7 may receive the voltage and current information, and the bluetooth module 7 may send the processed voltage and current currently collected by the online monitoring device to the processor 2 of the online detection device of the other phase line; specifically, the bluetooth module 7 is mainly used for communication between two adjacent on-line monitoring devices 100 in a short distance, for example, communication between two on-line monitoring devices 100 on different phase lines at the same position (the same position, that is, the same point to be measured) of a line.
The on-line monitoring device 100 may be separately disposed on different phase lines at the same position of the line, the voltage and current information on the different phase lines at the same position may be sent to the on-line monitoring device 100 on one of the phase lines, and the processor 2 of the on-line monitoring device 100 is used to calculate the instantaneous power of the point to be detected. In this embodiment, the line may include an a-phase line, a B-phase line, and a C-phase line, and each of the a-phase lines is installed with one online monitoring device 100, wherein voltage and current information acquired by the respective online monitoring devices 100 may be respectively sent to the online monitoring devices 100 on the a-phase line at the same position through the bluetooth modules 7 on the B-phase line and the C-phase line, and the instantaneous power of the point location is calculated in the processor 2 of the online monitoring devices 100 on the a-phase line.
In some embodiments, referring to fig. 1, the online monitoring apparatus 100 may further include a watchdog 8, the watchdog 8 is connected to the processor 2, the watchdog 8 may monitor whether the program in the processor 2 runs normally, when it is monitored that the program in the processor 2 runs abnormally, the input of the watchdog 8 will not be triggered, and the output of the watchdog 8 generates an automatic reset signal and sends the automatic reset signal to the processor 2, so that the processor 2 is automatically reset, and the processor 2 is placed in program dead loop.
Preferably, referring to fig. 1, the online monitoring device 100 may further include a reset circuit 9, the reset circuit 9 is connected to the processor 2, and the reset circuit 9 is configured to manually reset the processor 2; that is, when it is found that the processor 2 is not operating normally, the reset circuit 9 may be manually operated by a human, so that the reset circuit 9 controls the processor 2 to reset.
As shown in fig. 1, further, the online monitoring device 100 may further include a big dipper time service module 10, the big dipper time service module 10 is connected to the processor 2, wherein the big dipper time service module 10 is configured to provide time service signals for all online monitoring devices 100 on the line, so as to implement time synchronization of the online monitoring devices 100, enable the online monitoring devices 100 to implement synchronous sampling, and improve the synchronization accuracy of each online monitoring device 100.
In some embodiments, referring to fig. 1, the online monitoring device 100 may further include a power module 13, the power module 13 is connected to the communication module 3, the power module 13 is connected to the processor 2, and the power module 13 may include a coupling power-taking circuit, a solar power supply circuit, a backup battery, and the like, and stably outputs 12V/24V dc for each of the modules. In other embodiments, the power module 13 may also be connected to the storage module, the signal processor 5, the beidou timing module 10, the reset circuit 9, the watchdog 8 and the bluetooth module 7.
Preferably, the master station 4 may have an alarm module, and when the master station 4 calculates that the line loss difference between the two point locations to be detected is greater than the line loss preset value, the alarm module may send an alarm signal to indicate that there is an electricity stealing behavior between the two point locations to be detected.
Referring to fig. 2, the embodiment of the present invention further provides an online monitoring system for power grid, which may include: the system comprises a line and online monitoring devices 100 arranged on different points to be detected of the line, namely, at least one online monitoring device 100 can be arranged on different points to be detected; the online monitoring device 100 adopts the online monitoring device 100 for the simultaneous line loss and the electricity stealing prevention provided in any one of the above embodiments.
Further, referring to fig. 2, in this embodiment, an online monitoring device is respectively installed on the phase line a, the phase line B and the phase line C of the same point to be detected, the online monitoring devices 100 on the phase line a, the phase line B and the phase line C can all acquire voltage and current information, the online monitoring device on one phase line of the point to be detected can acquire voltage and current of all the online monitoring devices at the point to be detected, and calculate instantaneous power of the point to be detected according to the voltage and current of all the online monitoring devices, specifically, the voltage and current information acquired by each online monitoring device 100 can be respectively sent to the online monitoring devices 100 on the phase line a of the same point to be detected through the bluetooth modules 7 on the phase line B and the phase line C, after receiving the voltage and current information, the bluetooth module 7 on the phase line a can transmit the information to the processor 2 of the device through a serial port, the processor 2 of the on-line monitoring device 100 on the phase line a calculates the instantaneous power of the point to be detected by combining the voltage and current information collected by all the on-line monitoring devices 100.
The master station 4 can quickly calculate the line loss between the point locations to be detected by combining the line topology structure according to the instantaneous power information uploaded by the point locations to be detected.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a contemporaneous line loss reaches anti-electricity-stealing's on-line monitoring device which characterized in that, it includes:
the transformer (1) is used for collecting line power frequency voltage and current;
the processor (2), the processor (2) is connected with the mutual inductor (1), and the processor (2) is used for receiving the voltage and the current and calculating the instantaneous power of the point to be detected on the line according to the voltage and the current;
communication module (3), its intercommunication processor (2) and main website (4), communication module (3) are used for sending the instantaneous power of the point location of awaiting measuring to main website (4), main website (4) are used for calculating the line loss between each point location of awaiting measuring according to the instantaneous power of each point location of awaiting measuring.
2. The on-line monitoring device for the simultaneous line loss and the electric larceny prevention of claim 1, wherein:
the transformer (1) comprises a voltage transformer (11) and a current transformer (12), wherein the voltage transformer (11) is used for collecting line power frequency voltage, and the current transformer (12) is used for collecting line power frequency current.
3. The on-line monitoring device for the simultaneous line loss and the electric larceny prevention of claim 1, wherein:
the mutual inductor (1) is connected with a signal processor (5), and the signal processor (5) is used for amplifying, filtering and converting analog quantities of voltage and current into digital quantities;
the on-line monitoring device further comprises a memory (6), wherein the memory (6) is connected with the signal processor (5) and the processor (2), and the memory (6) is used for storing the digital quantity of the voltage and the current and sending the digital quantity of the voltage and the current to the processor (2).
4. The on-line monitoring device for the simultaneous line loss and the electric larceny prevention of claim 1, wherein:
the online monitoring device further comprises a Bluetooth module (7), the Bluetooth module (7) is connected with the processor (2), and the Bluetooth module (7) is used for sending the current collected and processed voltage and current of the online monitoring device to the processor (2) of the online detection device of another phase line.
5. The on-line monitoring device for the simultaneous line loss and the electric larceny prevention of claim 1, wherein:
the on-line monitoring device further comprises a watchdog (8), the watchdog (8) is connected with the processor (2), and the watchdog (8) is used for sending an automatic reset signal to the processor (2) when monitoring that the program of the processor (2) runs abnormally.
6. The on-line monitoring device for the simultaneous line loss and the electric larceny prevention of claim 1, wherein:
the on-line monitoring device further comprises a reset circuit (9), the reset circuit (9) is connected with the processor (2), and the reset circuit (9) is used for manually resetting the processor (2).
7. The on-line monitoring device for the simultaneous line loss and the electric larceny prevention of claim 1, wherein:
the on-line monitoring device further comprises a Beidou time service module (10), wherein the Beidou time service module (10) is connected with the processor (2) and is used for providing time service signals for the on-line monitoring device and achieving synchronous sampling.
8. The on-line monitoring device for the simultaneous line loss and the electric larceny prevention of claim 1, wherein:
the on-line monitoring device further comprises a power module (13), wherein the power module (13) is connected with the communication module (3), and the power module (13) is connected with the processor (2).
9. An on-line monitoring system for a power grid, comprising:
the on-line monitoring device adopts the on-line monitoring device for the contemporaneous line loss and the electricity stealing prevention according to any one of claims 1 to 8.
10. The grid on-line monitoring system of claim 9, wherein:
and the online monitoring device on one phase line of the point location to be detected collects the voltage and the current of all the online monitoring devices at the point location to be detected, and calculates the instantaneous power of the point location to be detected according to the voltage and the current of all the online monitoring devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220670661.5U CN217305382U (en) | 2022-03-23 | 2022-03-23 | On-line monitoring device and on-line monitoring system for synchronous line loss and electricity stealing prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220670661.5U CN217305382U (en) | 2022-03-23 | 2022-03-23 | On-line monitoring device and on-line monitoring system for synchronous line loss and electricity stealing prevention |
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| Publication Number | Publication Date |
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| CN217305382U true CN217305382U (en) | 2022-08-26 |
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| CN202220670661.5U Expired - Fee Related CN217305382U (en) | 2022-03-23 | 2022-03-23 | On-line monitoring device and on-line monitoring system for synchronous line loss and electricity stealing prevention |
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| Country | Link |
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| CN (1) | CN217305382U (en) |
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- 2022-03-23 CN CN202220670661.5U patent/CN217305382U/en not_active Expired - Fee Related
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Granted publication date: 20220826 |