CN113720396A - Underground cable line nerve sensing system - Google Patents
Underground cable line nerve sensing system Download PDFInfo
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- CN113720396A CN113720396A CN202111156828.2A CN202111156828A CN113720396A CN 113720396 A CN113720396 A CN 113720396A CN 202111156828 A CN202111156828 A CN 202111156828A CN 113720396 A CN113720396 A CN 113720396A
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- 210000005036 nerve Anatomy 0.000 title claims abstract description 12
- 238000012806 monitoring device Methods 0.000 claims abstract description 39
- 238000012545 processing Methods 0.000 claims abstract description 31
- 230000005856 abnormality Effects 0.000 claims abstract description 7
- 239000013307 optical fiber Substances 0.000 claims description 39
- 238000005070 sampling Methods 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses an underground cable line nerve sensing system, which comprises a monitoring device, a data acquisition device and a data processing device, wherein the monitoring device is connected with the data processing device through the data acquisition device, the data acquisition device transmits acquired data of the monitoring device to the data processing device, the data processing device comprises a display, a fault analysis module, an alarm module and a GIS positioning system, the data of the monitoring device is analyzed and processed through the fault analysis module and displayed through the display, when abnormality occurs, the alarm module can give an alarm, and the GIS positioning system can be used for positioning the fault position; the invention can save the manpower and time for detecting and positioning the fault point, is beneficial to improving the safety of the cable line and reducing the maintenance cost of the cable line.
Description
Technical Field
The invention belongs to the technical field of power systems, and particularly relates to a nerve sensing system for an underground cable line.
Background
The buried cable line of 10 kilovolts or less has no mark on the path of the buried cable line (from a power supply point of a transformer substation to user terminal equipment), the path of the cable line is not easy to find after running for a period of time, when a certain point of the cable line has faults such as insulation breakdown fault, external damage (digging and hurting the cable in ground construction) and the like, the fault point of the cable line needs to be subjected to positioning flaw detection, the cable path needs to be measured firstly for the cable line of which the path is unknown, and then the cable line is subjected to flaw detection after the path of the cable line is clear.
Therefore, in order to solve the above problems, it is necessary to develop a nerve sensing system for underground cable lines.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an underground cable line nerve sensing system, which is based on the comprehensive application of optical fiber sensing and a GIS geographic information system, establishes a cable line path and a direction graph with nerve sensing of the underground cable line, grasps the running real-time state of the cable line, achieves the purposes of foreknowledge, rapidness and accurate positioning, sets the functions of early warning and alarming, saves the manpower and time for detecting and positioning fault points, is favorable for improving the safety of the cable line and reduces the maintenance cost of the cable line.
The purpose of the invention is realized as follows: the underground cable line nerve sensing system comprises a monitoring device, a data acquisition device and a data processing device, wherein the monitoring device is connected with the data processing device through the data acquisition device, the data acquisition device transmits acquired data of the monitoring device to the data processing device, the data processing device comprises a display, a fault analysis module, an alarm module and a GIS positioning system, the data of the monitoring device is analyzed and processed through the fault analysis module and displayed through the display, when abnormality occurs, the alarm module can give an alarm, and the GIS positioning system can be used for positioning the fault position; the monitoring device comprises a plurality of current transformers and voltage transformers which are arranged on different cable sections, the current transformers and the voltage transformers are used for measuring current and voltage on the cable sections and connecting current and voltage data to a data acquisition device, the data acquisition device connects real-time current and voltage data to a fault analysis module of a data processing device, the fault analysis module compares the real-time voltage and current proportional relation data with the upper limit and the lower limit of the set voltage and current proportional relation data, when abnormality occurs, an alarm can be given through an alarm module, the fault position is positioned through a GIS positioning system, and the received current and voltage data and the analysis result can be displayed through a display; the monitoring device also comprises a distributed optical fiber sensor which is laid along with the cable line, the distributed optical fiber sensor is connected with a data acquisition device, the data acquisition device transmits data transmitted by the distributed optical fiber sensor to a fault analysis module of a data processing device for analysis, when the data acquisition device is abnormal, an alarm module can give an alarm, a GIS positioning system can be used for positioning the fault position, and the received data and the analysis result can be displayed through a display; the monitoring device also comprises an arrester grounding monitoring device arranged at the head end and the terminal of the cable line, the lightning arrester grounding monitoring device comprises a current sensor connected with the lightning arrester and a voltage sensor connected with the grounding end of the lightning arrester, the current sensor and the voltage sensor are connected with an arrester data collector, the arrester data collector is connected with an arrester data processor, the lightning arrester data processor is connected with a voltage comparator, the voltage comparator is connected with a data acquisition device, the data acquisition device transmits the data of the lightning arrester grounding monitoring device to the data processing device, the data processing device analyzes and processes the data through the fault analysis module, when the abnormal condition occurs, the alarm module can be used for alarming, and the received lightning arrester grounding monitoring device data can be displayed through the display.
The distributed optical fiber sensor comprises a laser, an acousto-optic modulator, an optical fiber amplifier, a circulator, a sampling optical fiber and a photoelectric detector.
The laser adopts a continuous narrow linewidth laser light source to emit continuous light waves, the optical fiber amplifier adopts an erbium-doped optical fiber amplifier, and the laser, the acousto-optic modulator, the optical fiber amplifier, the circulator, the sampling optical fiber and the photoelectric detector are connected by single-mode optical fibers.
The current sensors and the voltage sensors are respectively arranged in three.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
(1) the current transformer and the voltage transformer are arranged on different cable line sections, the bearing current and voltage of the cable line in real-time operation are monitored, the bearing current and the bearing voltage are transmitted to the data acquisition device and the data processing device from the secondary side of the cable line, the upper limit and the lower limit of voltage and current proportional relation data are set for each cable line according to the cable model and the maximum current allowed to bear, the upper limit and the lower limit of the real-time voltage and current proportional relation and the set voltage and current proportional relation data are compared, when abnormity occurs, an alarm can be directly given and transmitted to operation and maintenance personnel, and then operations such as limitation, load adjustment and the like can be directly adopted, and the stable reliability of the operation of the cable line is ensured;
(2) according to the path of the buried cable line, distributed light sensors are arranged at different positions, optical signals are used as sensing media, different physical quantities such as stress, vibration, temperature and humidity, electromagnetic fields and the like of each point on a sampling optical fiber can be measured on the optical fibers with continuous two ends at the same time, abnormal or out-of-limit data are timely alarmed and transmitted to operation and maintenance personnel, and particularly when the cable line has faults such as external force destructiveness and the like, the faults can be timely discovered;
(3) by arranging the lightning arrester grounding monitoring device, the head end of a cable line, the efficacy of a terminal lightning arrester and the grounding reliability can be monitored in real time, and the dynamic states of the lightning arrester and the grounding reliability can be mastered in real time;
(4) through being equipped with GIS geographic information system at data processing apparatus, can walk the footpath according to the cable run, combine information such as monitoring data, judge unusual fault point fast, practice thrift troubleshooting time, improve maintenance efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of the distributed optical fiber sensor according to the present invention.
Fig. 3 is a schematic structural diagram of the lightning arrester grounding monitoring device in the invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3, a neural perception system of underground cable run, including monitoring devices, data acquisition device and data processing device, monitoring devices passes through data acquisition device and connects data processing device, data acquisition device is with the data transmission to data processing device of the monitoring devices who gathers, data processing device includes display, failure analysis module, alarm module and GIS positioning system, carries out analysis processes and shows through the display to monitoring devices' data through failure analysis module, and when appearing unusually, accessible alarm module reports to the police to fix a position trouble through GIS positioning system.
The monitoring device comprises a plurality of current transformers and voltage transformers which are arranged on different cable line sections, the current transformers and the voltage transformers are used for measuring current and voltage on the cable line sections and accessing the current and voltage data into the data acquisition device, the data acquisition device accesses the real-time current and voltage data into the fault analysis module of the data processing device, the fault analysis module compares the real-time voltage and current proportional relation data with the upper limit and the lower limit of the set voltage and current proportional relation data, when abnormality occurs, the alarm module gives an alarm, the fault position is positioned through the GIS positioning system, and the received current and voltage data and the analysis result can be displayed through the displayer.
The monitoring device also comprises a distributed optical fiber sensor which is laid along with the cable line, the distributed optical fiber sensor is connected with a data acquisition device, the data acquisition device transmits data transmitted by the distributed optical fiber sensor to a fault analysis module of a data processing device for analysis, when abnormality occurs, the monitoring device can give an alarm through an alarm module and position the fault position through a GIS positioning system, and the received data and the analysis result can be displayed through a display; preferably, the distributed optical fiber sensor comprises a laser, an acousto-optic modulator, an optical fiber amplifier, a circulator, a sampling optical fiber and a photoelectric detector, wherein the laser adopts a continuous narrow-linewidth laser light source to emit continuous light waves, the optical fiber amplifier adopts an erbium-doped optical fiber amplifier, and the laser, the acousto-optic modulator, the optical fiber amplifier, the circulator, the sampling optical fiber and the photoelectric detector are connected by a single-mode optical fiber; continuous laser light wave of laser instrument output is the pulse light through acousto-optic modulator conversion, enlargies pulse light intensity through the fiber amplifier, injects into sampling optical fiber through the circulator, and the backward rayleigh scattered light that produces in the sampling optical fiber is received the back by photoelectric detector through the circulator, is gathered the light intensity signal by data acquisition device, transmits to data processing device and carries out data processing analysis.
Wherein, the monitoring device also comprises an arrester grounding monitoring device arranged at the head end and the terminal of the cable line, the lightning arrester grounding monitoring device comprises a current sensor connected with the lightning arrester and a voltage sensor connected with the grounding end of the lightning arrester, the number of the current sensors and the number of the voltage sensors are respectively three, the current sensors and the voltage sensors are connected with a lightning arrester data acquisition unit, the lightning arrester data acquisition unit is connected with a lightning arrester data processor, the lightning arrester data processor is connected with a voltage comparator, the voltage comparator is connected with a data acquisition device, the data acquisition device transmits the data of the lightning arrester grounding monitoring device to a data processing device, the data processing device analyzes and processes the data through a fault analysis module, and when an abnormity occurs, the alarm module can be used for alarming, and the received lightning arrester grounding monitoring device data can be displayed through the display.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the specific embodiments of the present invention without departing from the spirit and scope of the present invention, and all the modifications or equivalent substitutions should be covered in the claims of the present invention.
Claims (4)
1. An underground cable line nerve sensing system, comprising: the monitoring device is connected with the data processing device through the data acquisition device, the data acquisition device transmits acquired data of the monitoring device to the data processing device, the data processing device comprises a display, a fault analysis module, an alarm module and a GIS positioning system, the data of the monitoring device is analyzed and processed through the fault analysis module and displayed through the display, when abnormality occurs, the alarm module can give an alarm, and the fault position is positioned through the GIS positioning system;
the monitoring device comprises a plurality of current transformers and voltage transformers which are arranged on different cable sections, the current transformers and the voltage transformers are used for measuring current and voltage on the cable sections and connecting current and voltage data to a data acquisition device, the data acquisition device connects real-time current and voltage data to a fault analysis module of a data processing device, the fault analysis module compares the real-time voltage and current proportional relation data with the upper limit and the lower limit of the set voltage and current proportional relation data, when abnormality occurs, an alarm can be given through an alarm module, the fault position is positioned through a GIS positioning system, and the received current and voltage data and the analysis result can be displayed through a display;
the monitoring device also comprises a distributed optical fiber sensor which is laid along with the cable line, the distributed optical fiber sensor is connected with a data acquisition device, the data acquisition device transmits data transmitted by the distributed optical fiber sensor to a fault analysis module of a data processing device for analysis, when the data acquisition device is abnormal, an alarm module can give an alarm, a GIS positioning system can be used for positioning the fault position, and the received data and the analysis result can be displayed through a display;
the monitoring device also comprises an arrester grounding monitoring device arranged at the head end and the terminal of the cable line, the lightning arrester grounding monitoring device comprises a current sensor connected with the lightning arrester and a voltage sensor connected with the grounding end of the lightning arrester, the current sensor and the voltage sensor are connected with an arrester data collector, the arrester data collector is connected with an arrester data processor, the lightning arrester data processor is connected with a voltage comparator, the voltage comparator is connected with a data acquisition device, the data acquisition device transmits the data of the lightning arrester grounding monitoring device to the data processing device, the data processing device analyzes and processes the data through the fault analysis module, when the abnormal condition occurs, the alarm module can be used for alarming, and the received lightning arrester grounding monitoring device data can be displayed through the display.
2. The underground cabled nerve sensing system according to claim 1, wherein: the distributed optical fiber sensor comprises a laser, an acousto-optic modulator, an optical fiber amplifier, a circulator, a sampling optical fiber and a photoelectric detector.
3. A subterranean cabled nerve sensing system according to claim 2, wherein: the laser adopts a continuous narrow linewidth laser light source to emit continuous light waves, the optical fiber amplifier adopts an erbium-doped optical fiber amplifier, and the laser, the acousto-optic modulator, the optical fiber amplifier, the circulator, the sampling optical fiber and the photoelectric detector are connected by single-mode optical fibers.
4. The underground cabled nerve sensing system according to claim 1, wherein: the current sensors and the voltage sensors are respectively arranged in three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156828.2A CN113720396A (en) | 2021-09-30 | 2021-09-30 | Underground cable line nerve sensing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156828.2A CN113720396A (en) | 2021-09-30 | 2021-09-30 | Underground cable line nerve sensing system |
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| Publication Number | Publication Date |
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| CN113720396A true CN113720396A (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111156828.2A Withdrawn CN113720396A (en) | 2021-09-30 | 2021-09-30 | Underground cable line nerve sensing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900232A (en) * | 2022-04-26 | 2022-08-12 | 杭州东方通信软件技术有限公司 | Method and system for positioning fault point of transmission optical cable based on GIS engine |
| CN115616341A (en) * | 2022-09-29 | 2023-01-17 | 众芯汉创（北京）科技有限公司 | Operation and maintenance monitoring system for remotely and automatically searching power cable line based on Internet of things |
-
2021
- 2021-09-30 CN CN202111156828.2A patent/CN113720396A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900232A (en) * | 2022-04-26 | 2022-08-12 | 杭州东方通信软件技术有限公司 | Method and system for positioning fault point of transmission optical cable based on GIS engine |
| CN115616341A (en) * | 2022-09-29 | 2023-01-17 | 众芯汉创（北京）科技有限公司 | Operation and maintenance monitoring system for remotely and automatically searching power cable line based on Internet of things |
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Application publication date: 20211130 |