CN114113903A - System and method for positioning line loss of distribution network line - Google Patents
System and method for positioning line loss of distribution network line Download PDFInfo
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- CN114113903A CN114113903A CN202111450131.6A CN202111450131A CN114113903A CN 114113903 A CN114113903 A CN 114113903A CN 202111450131 A CN202111450131 A CN 202111450131A CN 114113903 A CN114113903 A CN 114113903A
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Abstract
The invention discloses a system and a method for positioning line loss of a distribution network line. The distribution network line loss positioning system comprises an acquisition terminal and a calculation terminal; the system comprises a plurality of acquisition terminals, a plurality of communication terminals and a plurality of communication terminals, wherein the acquisition terminals are all installed on a distribution network line and are used for acquiring current and voltage instantaneous values of the distribution network line at the installation position; the calculating terminal is in communication connection with the collecting terminals, and is used for acquiring current and voltage instantaneous values of distribution network lines collected by the collecting terminals at the installation position, determining whether line loss occurs to the distribution network lines between the collecting terminals according to the difference value of the current and voltage instantaneous values collected by the collecting terminals, and determining the line loss position based on the installation positions of the collecting terminals when the line loss occurs. By adopting the scheme, the line loss positioning efficiency and the accuracy and the real-time performance of line loss detection are improved.
Description
Technical Field
The embodiment of the invention relates to a line loss positioning technology, in particular to a system and a method for positioning line loss of a distribution network line.
Background
At present, because an electric power system can only test and read the output electric energy of a power supply end and the use electric energy of a user end, the line loss condition of a distribution network line can only be obtained through calculation, the line loss condition in the distribution network line cannot be accurately positioned, the line is not beneficial to maintenance, and the line loss condition of the line cannot be mastered in real time. At present, the line can be checked in a manual mode, but the environment of the line is complex, the manual checking is not only low in efficiency, but also the personal safety threat can be brought to the checking personnel due to the complex environment problem.
Disclosure of Invention
The invention provides a distribution network line loss positioning system and a distribution network line loss positioning method, which aim to improve line loss positioning efficiency and line loss detection accuracy and real-time performance.
In a first aspect, an embodiment of the present invention provides a distribution network line loss positioning system, where the distribution network line loss positioning system includes an acquisition terminal and a computation terminal;
the system comprises a plurality of acquisition terminals, a plurality of communication terminals and a plurality of communication terminals, wherein the acquisition terminals are all installed on a distribution network line and are used for acquiring current and voltage instantaneous values of the distribution network line at the installation position;
the calculating terminal is in communication connection with the collecting terminals, and is used for acquiring current and voltage instantaneous values of distribution network lines collected by the collecting terminals at the installation position, determining whether line loss occurs to the distribution network lines between the collecting terminals according to the difference value of the current and voltage instantaneous values collected by the collecting terminals, and determining the line loss position based on the installation positions of the collecting terminals when the line loss occurs.
In an optional embodiment of the invention, the acquisition terminal comprises a current and voltage acquisition module and a communication module;
the current and voltage acquisition module is used for acquiring a current and voltage instantaneous value of the distribution network line at the installation position;
the communication module is electrically connected with the current and voltage acquisition module, and the current and voltage acquisition module transmits the acquired current and voltage instantaneous value to the computing terminal through the communication module.
In an alternative embodiment of the invention, the communication module comprises a wireless communication module.
In an optional embodiment of the present invention, the wireless communication module includes at least one of an NB-IOT module and a GPRS communication module.
In an optional embodiment of the present invention, the acquisition terminal further includes a positioning module, and the positioning module is configured to obtain a current positioning position of the acquisition terminal;
the computing terminal is specifically configured to determine a line loss position based on the current positioning positions of the two adjacent acquisition terminals.
In an optional embodiment of the present invention, the acquisition terminal further includes at least one of:
the image acquisition module is used for acquiring image data of the installation position of the acquisition terminal, is electrically connected with the communication module and is used for transmitting the acquired image data to the computing terminal through the communication module;
the temperature acquisition module is used for acquiring temperature data of the installation position where the acquisition terminal is located; the temperature acquisition module is electrically connected with the communication module and is used for transmitting the acquired temperature data to the computing terminal through the communication module.
In a second aspect, an embodiment of the present invention further provides a method for positioning line loss of a distribution network, where the method for positioning line loss of a distribution network is applied to a computing terminal of a system for positioning line loss of a distribution network according to any embodiment of the present invention, and the method for positioning line loss of a distribution network includes:
acquiring current and voltage instantaneous values of distribution network lines acquired by a plurality of acquisition terminals at the installation positions;
and determining whether line loss occurs to a distribution network line between two adjacent acquisition terminals according to the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals, and determining the line loss position based on the installation positions of the two adjacent acquisition terminals when the line loss occurs.
In an optional embodiment of the present invention, the determining, according to a difference value between instantaneous values of current and voltage acquired by two adjacent acquisition terminals, whether a line loss occurs in a distribution network line between the two adjacent acquisition terminals, and determining, when the line loss occurs, a line loss position based on installation positions of the two adjacent acquisition terminals includes:
determining whether the difference value of the instantaneous values of the current and the voltage acquired by two adjacent acquisition terminals exceeds a preset line loss threshold value or not;
if yes, determining that the line loss occurs in the distribution network line between the two adjacent acquisition terminals, and determining the line loss position based on the installation positions of the two adjacent acquisition terminals.
In an optional embodiment of the present invention, before determining that a line loss occurs in a distribution network line between the two adjacent acquisition terminals, the method further includes:
determining whether the distance between the two adjacent acquisition terminals is within a preset distance;
and if so, executing the step of determining the line loss of the distribution network line between the two adjacent acquisition terminals.
In an optional embodiment of the present invention, after determining whether a distance between the two adjacent acquisition terminals is within a preset distance, the method further includes:
if not, determining whether the distance between the two adjacent acquisition terminals is greater than a preset multiple of a preset distance;
and if so, judging that at least one of the two adjacent acquisition terminals has the condition of an offset initial bit.
The method comprises the steps of acquiring current and voltage instantaneous values of distribution network lines at different installation positions through different positions of distribution network lines on which a plurality of acquisition terminals are installed, acquiring the current and voltage instantaneous values of the distribution network lines at the installation positions, acquired by the plurality of acquisition terminals, through a calculation terminal, determining whether line loss occurs in the distribution network lines between two adjacent acquisition terminals according to the difference value of the current and voltage instantaneous values acquired by the two adjacent acquisition terminals, and determining the line loss position based on the installation positions of the two adjacent acquisition terminals when the line loss occurs. Therefore, the line does not need to be checked in a manual mode, whether the line loss occurs in the distribution network line or not can be monitored on line, the line loss position can be determined, and the line loss positioning efficiency and the accuracy and the real-time performance of line loss detection are improved.
Drawings
Fig. 1 is a block diagram of a positioning system for line loss of a distribution network according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a plurality of acquisition terminals installed on a distribution network line in a first embodiment of the present invention;
fig. 3 is a block diagram of a distribution network line loss positioning system according to a second embodiment of the present invention;
fig. 4 is a flowchart of a method for positioning line loss of a distribution network according to a third embodiment of the present invention;
FIG. 5 is a flowchart of step S120 provided in the third embodiment of the present invention;
fig. 6 is a flowchart of a method for positioning line loss of a distribution network according to a fourth embodiment of the present invention.
1. Collecting a terminal; 11. a current and voltage acquisition module; 12. a communication module; 13. a positioning module; 14. an image acquisition module; 15. a temperature acquisition module; 2. and (4) calculating the terminal.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a structural block diagram of a distribution network line loss positioning system according to an embodiment of the present invention, which may be used in a distribution network line loss positioning situation, and as shown in fig. 1, the distribution network line loss positioning system includes an acquisition terminal 1 and a calculation terminal 2.
The number of the acquisition terminals 1 is multiple, the acquisition terminals 1 are all installed on the distribution network line, and the acquisition terminals 1 are used for acquiring the current and voltage instantaneous values of the distribution network line at the installation position.
The calculating terminal 2 is in communication connection with the collecting terminals 1, the calculating terminal 2 is used for obtaining current and voltage instantaneous values of the distribution network lines collected by the collecting terminals 1 at the installation positions, determining whether line loss occurs to the distribution network lines between the two adjacent collecting terminals 1 according to the difference value of the current and voltage instantaneous values collected by the two adjacent collecting terminals 1, and determining the line loss positions based on the installation positions of the two adjacent collecting terminals 1 when the line loss occurs.
The acquisition terminal 1 is a terminal capable of acquiring instantaneous values of current and voltage of the distribution network line, and the installation position is the position of the acquisition terminal 1 when the acquisition terminal is installed on the distribution network line. For example, in a specific embodiment, as shown in fig. 2, there are A, B, C, D acquisition terminals 1, A, B, C, D acquisition terminals are installed at different positions on the distribution network line, and A, B, C, D acquisition terminals are installed at different positions on the distribution network line, that is, A, B, C, D acquisition terminals.
When the line loss does not occur on the line, the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals 1 should be within a specific range, so that whether the line loss occurs on the distribution network line between the two adjacent acquisition terminals 1 can be determined according to the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals 1.
The installation position of the acquisition terminal 1 is generally fixed, and therefore, the installation position of the acquisition terminal 1 can be pre-stored in the computing terminal 2 in advance. Of course, according to different use requirements, the acquisition terminal 1 may also have a positioning function, and send the current installation position to the computing terminal 2. The method for determining the installation position of the acquisition terminal 1 by the computing terminal 2 is not specifically limited, and is only an example.
According to the scheme, the current and voltage instantaneous values of the distribution network line at different installation positions are acquired through different positions of the acquisition terminals 1 which are all installed on the distribution network line, then the current and voltage instantaneous values of the distribution network line at the installation position, acquired by the acquisition terminals 1, are acquired through the calculation terminal 2, whether line loss occurs in the distribution network line between the two adjacent acquisition terminals 1 is determined according to the difference value of the current and voltage instantaneous values acquired by the two adjacent acquisition terminals 1, and the line loss position is determined based on the installation positions of the two adjacent acquisition terminals 1 when the line loss occurs. Therefore, the line does not need to be checked in a manual mode, whether the line loss occurs in the distribution network line or not can be monitored on line, the line loss position can be determined, and the line loss positioning efficiency and the accuracy and the real-time performance of line loss detection are improved.
Example two
Fig. 3 is a structural block diagram of a distribution network line loss positioning system according to a second embodiment of the present invention, which is optimized based on the first embodiment. As shown in fig. 3, the collection terminal 1 includes a current and voltage collection module 11 and a communication module 12.
The current and voltage acquisition module 11 is used for acquiring a current and voltage instantaneous value of the distribution network line at the installation position.
The communication module 12 is electrically connected with the current and voltage acquisition module 11, and the current and voltage acquisition module 11 transmits the acquired current and voltage instantaneous value to the computing terminal 2 through the communication module 12.
The current and voltage acquisition module 11 is a module capable of acquiring current and voltage, and the communication module 12 is a module capable of performing data communication with the computing terminal 2. The current and voltage instantaneous value of the distribution network line at the installation position of the current and voltage acquisition module 11 can be conveniently acquired by arranging the current and voltage acquisition module 11. The instantaneous value of the current and voltage can be conveniently sent to the computing terminal 2 through the communication module 12.
Illustratively, the communication module 12 includes a wireless communication module.
The wireless communication module supports GPRS and short message two-channel data transmission; supporting multi-center data communication, by making the communication module 12 include a wireless communication module, the data communication of the communication module 12 with the computing terminal 2 is facilitated.
Specifically, the wireless communication module includes at least one of an NB-IOT module and a GPRS communication module.
Among them, the narrowband Band Internet of Things (NB-IoT) becomes an important branch of the Internet of everything. The NB-IoT is constructed in a cellular network, only consumes about 180kHz bandwidth, and can be directly deployed in a GSM network, a UMTS network or an LTE network so as to reduce the deployment cost and realize smooth upgrading. NB-IoT is an emerging technology in the IoT domain that supports cellular data connectivity for low power devices over wide area networks, also known as Low Power Wide Area Networks (LPWANs). NB-IoT supports efficient connectivity for devices with long standby time and high requirements for network connectivity.
The GPRS communication module adopts a high-performance industrial wireless module and an embedded processor, takes a real-time operating system as a software supporting platform, is embedded with a TCP/IP protocol with independent intellectual property rights, and provides a high-speed, stable and reliable online transparent data transmission channel for users.
By making the wireless communication module include at least one of the NB-IOT module and the GPRS communication module, data communication between the wireless communication module and the computing terminal 2 is facilitated.
In an optional embodiment of the present invention, the acquisition terminal 1 further includes a positioning module 13, where the positioning module 13 is configured to obtain a current positioning position of the acquisition terminal 1; the computing terminal 2 is specifically configured to determine a line loss position based on the current positioning positions of the two adjacent acquisition terminals 1.
The positioning module 13 is a module capable of obtaining the position of the acquisition terminal 1, in a specific embodiment, the positioning module 13 may include at least one of a GPS module and a GLONASS navigation positioning module 13, and the specific structure of the positioning module 13 is not specifically limited, but is merely an example.
Because in the time of in-service use, the condition of skew may appear in the mounted position of collection terminal 1, consequently, through setting up orientation module 13, the position of collection terminal 1 that orientation module 13 obtained is the position that collection terminal 1 actually was in on the circuit this moment, so can make the line loss position of confirming comparatively accurate.
In an optional embodiment of the present invention, the collection terminal 1 further includes an image collection module 14, the image collection module 14 is configured to collect image data of an installation location where the collection terminal 1 is located, and the image collection module 14 is electrically connected to the communication module 12 and configured to send the collected image data to the computing terminal 2 through the communication module 12.
The image capturing module 14 is a hardware device that can acquire, store, and play back digital video image information, and the specific structure of the image capturing module 14 is not specifically limited, as long as an image can be captured. The image data of the installation position where the acquisition terminal 1 is located is acquired through the image acquisition module 14, and the condition of the distribution network line at the installation position can be seen from the image corresponding to the image data, so that the distribution network line can be timely found when the distribution network line is damaged by people, animals and the like, and data support is provided for subsequent processing.
In an optional embodiment of the present invention, the acquisition terminal 1 further includes a temperature acquisition module 15, and the temperature acquisition module 15 is configured to acquire temperature data of an installation position where the acquisition terminal 1 is located; the temperature acquisition module 15 is electrically connected with the communication module 12 and is used for transmitting the acquired temperature data to the computing terminal 2 through the communication module 12.
The temperature acquisition module 15 is a module capable of acquiring temperature data, in a specific embodiment, the temperature acquisition module 15 includes a temperature sensor, and the temperature sensor (temperature transducer) is a sensor capable of sensing temperature and converting into a usable output signal. The temperature data of the installation position where the corresponding acquisition terminal 1 is located is acquired by arranging the temperature acquisition module 15, and the early warning effect is realized on the condition that the distribution network line is damaged due to overhigh temperature or overlow temperature.
For example, the collection terminal 1 may include a housing, and the positioning module 13 may be disposed on the housing, and then the housing is fixed to the distribution network line, so that the position obtained by the positioning module 13 is the installation position of the collection terminal 1 on the distribution network line.
In addition, the image acquisition module 14 and/or the temperature acquisition module 15 may also be disposed on the housing, so that the image acquisition module 14 and the temperature acquisition module 15 can respectively acquire image data and temperature data of the installation position of the terminal 1 on the distribution network line.
EXAMPLE III
Fig. 4 is a flowchart of a method for positioning line loss of a distribution network according to a third embodiment of the present invention, where this embodiment may be used in a situation of positioning line loss of a distribution network, and the method for positioning line loss of a distribution network is applied to a computing terminal of a positioning system for line loss of a distribution network according to any embodiment of the present invention, as shown in fig. 4, the method for positioning line loss of a distribution network includes:
and S110, acquiring current and voltage instantaneous values of the distribution network lines acquired by the plurality of acquisition terminals at the installation positions.
The method for acquiring the instantaneous current and voltage values includes various methods, for example, the computing terminal is directly electrically connected with the plurality of acquisition terminals, and the instantaneous current and voltage values of the distribution network line acquired by the plurality of acquisition terminals at the installation position are acquired; or the computing terminal can be in wireless communication with the plurality of acquisition terminals, and the instantaneous values of the current and the voltage of the distribution network lines acquired by the plurality of acquisition terminals at the installation positions are acquired in a communication mode with the acquisition terminals.
S120, determining whether line loss occurs to a distribution network line between two adjacent acquisition terminals according to the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals, and determining the line loss position based on the installation positions of the two adjacent acquisition terminals when the line loss occurs.
When the line loss does not occur on the line, the difference value of the instantaneous values of the current and the voltage acquired by two adjacent acquisition terminals is within a specific range, so that whether the line loss occurs on the distribution network line between the two adjacent acquisition terminals can be determined according to the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals.
The installation position of the acquisition terminal is usually fixed, so that the installation position of the acquisition terminal can be prestored in the computing terminal in advance. Of course, according to different use requirements, the acquisition terminal can also have a positioning function and send the current installation position to the computing terminal. The method for determining the installation position of the acquisition terminal by the computing terminal is not specifically limited, but is merely an example.
According to the scheme, the current and voltage instantaneous values of the distribution network line at the installation position, which are acquired by the acquisition terminals, are acquired, whether line loss occurs in the distribution network line between the two adjacent acquisition terminals is determined according to the difference value of the current and voltage instantaneous values acquired by the two adjacent acquisition terminals, and the line loss position is determined based on the installation positions of the two adjacent acquisition terminals when the line loss occurs. Therefore, the line does not need to be checked in a manual mode, whether the line loss occurs in the distribution network line or not can be monitored on line, the line loss position can be determined, and the line loss positioning efficiency and the accuracy and the real-time performance of line loss detection are improved.
In an optional embodiment of the present invention, as shown in fig. 5, S120, determining whether a line loss occurs in a distribution network line between two adjacent collection terminals according to a difference value between instantaneous values of current and voltage collected by the two adjacent collection terminals, and determining a line loss position based on installation positions of the two adjacent collection terminals when the line loss occurs, includes:
s121, determining whether the difference value of the instantaneous values of the current and the voltage acquired by two adjacent acquisition terminals exceeds a preset line loss threshold value.
If yes, go to step S122.
And S122, determining that the line loss occurs in the distribution network line between the two adjacent acquisition terminals, and determining the line loss position based on the installation positions of the two adjacent acquisition terminals.
The preset line loss threshold value is a value when the difference value of the instantaneous values of the current and the voltage collected by the two adjacent collection terminals is at the maximum when no line loss occurs in a line between the two adjacent collection terminals. Therefore, whether the line loss occurs to the distribution network line between the two adjacent acquisition terminals can be conveniently determined by determining whether the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals exceeds a preset line loss threshold value.
Example four
Fig. 6 is a flowchart of a method for positioning line loss of a distribution network according to a fourth embodiment of the present invention, and the embodiment of the present invention is optimized based on the third embodiment.
As shown in fig. 6, the method includes:
and S210, acquiring current and voltage instantaneous values of the distribution network lines acquired by the plurality of acquisition terminals at the installation positions.
S220, determining whether the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals exceeds a preset line loss threshold value.
If yes, go to step S230.
And S230, determining whether the distance between the two adjacent acquisition terminals is within a preset distance.
The preset distance refers to a relative distance between two adjacent acquisition terminals when the two adjacent acquisition terminals are located at the initial position.
If yes, go to step S240; if yes, go to step S250.
S240, determining that line loss occurs in a distribution network line between the two adjacent acquisition terminals, and determining the line loss position based on the installation positions of the two adjacent acquisition terminals.
If the distance between the two adjacent acquisition terminals is within the preset distance, it is indicated that the two adjacent acquisition terminals do not shift relatively, and the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals exceeds the preset line loss threshold value, so that it is indicated that the line loss occurs in the distribution network line between the two adjacent acquisition terminals, and the accuracy and the real-time performance of line loss detection are improved.
And S250, determining whether the distance between the two adjacent acquisition terminals is greater than a preset multiple of a preset distance.
The preset multiple of the preset distance refers to a distance which should not be exceeded by two adjacent acquisition terminals within a reasonable offset range.
If yes, go to step S260.
And S260, judging the condition that at least one of the two adjacent acquisition terminals has an offset initial bit.
When the distance between the two adjacent acquisition terminals is greater than the preset multiple of the preset distance, the distance between the two adjacent acquisition terminals is far greater than the relative distance between the two adjacent acquisition terminals when the two adjacent acquisition terminals are both located at the initial position, and the condition that at least one of the two adjacent acquisition terminals has the initial position of offset is explained, so that the condition that at least one of the two adjacent acquisition terminals has the initial position of offset can be judged, and an operator can timely process the offset acquisition terminals.
In an optional embodiment of the present invention, the determining a line loss position based on the installation positions of the two adjacent acquisition terminals includes: and determining the line loss position based on the current positioning positions of the two adjacent acquisition terminals.
The current positioning position refers to a position where the acquisition module acquired through the positioning module is actually located on the line at the moment, and since the installation position of the acquisition terminal may deviate during actual use, the line loss position is determined through the current positioning position based on the two adjacent acquisition terminals, so that the determined line loss position can be more accurate.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A distribution network line loss positioning system is characterized by comprising an acquisition terminal (1) and a calculation terminal (2);
the device comprises a plurality of acquisition terminals (1), wherein the acquisition terminals (1) are all installed on a distribution network line, and the acquisition terminals (1) are used for acquiring current and voltage instantaneous values of the distribution network line at the installation position;
the utility model discloses a line loss detection device, including acquisition terminal (1), calculation terminal (2) with acquisition terminal (1) communication connection, calculation terminal (2) are used for obtaining the current-voltage instantaneous value of the distribution network circuit that a plurality of acquisition terminals (1) were gathered in this mounted position department, and according to adjacent two the current-voltage instantaneous value's that acquisition terminal (1) was gathered difference value confirms this adjacent two whether line loss appears in the distribution network circuit between acquisition terminal (1) to when line loss appears based on this adjacent two the mounted position of acquisition terminal (1) confirms the line loss position.
2. The distribution network line loss positioning system according to claim 1, wherein the acquisition terminal (1) comprises a current and voltage acquisition module (11) and a communication module (12);
the current and voltage acquisition module (11) is used for acquiring a current and voltage instantaneous value of the distribution network line at the installation position;
the communication module (12) is electrically connected with the current and voltage acquisition module (11), and the current and voltage acquisition module (11) transmits the acquired current and voltage instantaneous value to the computing terminal (2) through the communication module (12).
3. The system for locating line loss of a distribution network according to claim 2, wherein the communication module (12) comprises a wireless communication module.
4. The distribution network line loss positioning system according to claim 3, wherein the wireless communication module (12) comprises at least one of an NB-IOT module and a GPRS communication module.
5. The distribution network line loss positioning system according to claim 1, wherein the acquisition terminal (1) further comprises a positioning module (13), and the positioning module (13) is configured to obtain a current positioning position of the acquisition terminal (1);
the computing terminal (2) is specifically configured to determine a line loss position based on the current positioning positions of the two adjacent acquisition terminals (1).
6. The system for locating the line loss of the distribution network according to claim 1, wherein the collection terminal (1) further comprises at least one of:
the image acquisition module (14) is used for acquiring image data of an installation position where the acquisition terminal (1) is located, and the image acquisition module (14) is electrically connected with the communication module (12) and is used for sending the acquired image data to the computing terminal (2) through the communication module (12);
the temperature acquisition module (15), the temperature acquisition module (15) is used for acquiring the temperature data of the installation position where the acquisition terminal (1) is located; the temperature acquisition module (15) is electrically connected with the communication module (12) and is used for transmitting the acquired temperature data to the computing terminal (2) through the communication module (12).
7. A distribution network line loss positioning method applied to the computing terminal of the distribution network line loss positioning system of any one of claims 1 to 6, comprising:
acquiring current and voltage instantaneous values of distribution network lines acquired by a plurality of acquisition terminals at the installation positions;
and determining whether line loss occurs to a distribution network line between two adjacent acquisition terminals according to the difference value of the instantaneous values of the current and the voltage acquired by the two adjacent acquisition terminals, and determining the line loss position based on the installation positions of the two adjacent acquisition terminals when the line loss occurs.
8. The method according to claim 7, wherein the determining whether the line loss occurs in the distribution network line between two adjacent collection terminals according to the difference between the instantaneous values of the current and the voltage collected by the two adjacent collection terminals, and determining the line loss position based on the installation positions of the two adjacent collection terminals when the line loss occurs comprises:
determining whether the difference value of the instantaneous values of the current and the voltage acquired by two adjacent acquisition terminals exceeds a preset line loss threshold value or not;
if yes, determining that the line loss occurs in the distribution network line between the two adjacent acquisition terminals, and determining the line loss position based on the installation positions of the two adjacent acquisition terminals.
9. The method for positioning the line loss of the distribution network according to claim 7 or 8, wherein before determining that the line loss of the distribution network line between the two adjacent acquisition terminals occurs, the method further comprises:
determining whether the distance between the two adjacent acquisition terminals is within a preset distance;
and if so, executing the step of determining the line loss of the distribution network line between the two adjacent acquisition terminals.
10. The method for positioning the line loss of the distribution network according to claim 9, wherein after determining whether the distance between the two adjacent acquisition terminals is within a preset distance, the method further comprises:
if not, determining whether the distance between the two adjacent acquisition terminals is greater than a preset multiple of a preset distance;
and if so, judging that at least one of the two adjacent acquisition terminals has the condition of an offset initial bit.
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| CN202111450131.6A CN114113903A (en) | 2021-11-30 | 2021-11-30 | System and method for positioning line loss of distribution network line |
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| CN202111450131.6A CN114113903A (en) | 2021-11-30 | 2021-11-30 | System and method for positioning line loss of distribution network line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023164895A1 (en) * | 2022-03-03 | 2023-09-07 | 广东电网有限责任公司广州供电局 | Line loss detection load balancing method and apparatus used for gateway and gateway device |
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