CN203705534U - On-line monitoring device for lightning current of overhead transmission line - Google Patents
On-line monitoring device for lightning current of overhead transmission line Download PDFInfo
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- CN203705534U CN203705534U CN201320770421.3U CN201320770421U CN203705534U CN 203705534 U CN203705534 U CN 203705534U CN 201320770421 U CN201320770421 U CN 201320770421U CN 203705534 U CN203705534 U CN 203705534U
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- lightning
- transmission line
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- power supply
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000012806 monitoring device Methods 0.000 title abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 13
- 230000003278 mimic effect Effects 0.000 claims description 12
- 239000012212 insulator Substances 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 208000025274 Lightning injury Diseases 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
An on-line monitoring device for lightning current of an overhead transmission line is composed of an Msp430 single-chip microcomputer, an FPGA (field-programmable gate array), a trigger circuit, an AD acquisition and matching circuit, an AD converter, a GPS module, a GPRS communication module, a solar cell panel, a charge controller, a storage battery, Rogowski coils, a digital circuit power supply and an analog circuit power supply assembly. The on-line monitoring device is installed at a cross arm of a pole tower and is powered by solar batteries, and sensors are installed on insulator strings of the pole tower of the power transmission line and a lightning conductor of the pole tower. When a place near a monitoring point is subjected to lightning stroke, the Rogowski coils output inducted voltage. When the voltage reaches a certain threshold value, the trigger circuit of the device starts to acquire lightning current signals, and measuring results are sent to a terminal computer through a wireless communication method. A lightning current oscillogram and waveform parameters of each path are obtained through comprehensive analysis of the terminal computer, thereby guiding operation and maintenance work for the pole tower.
Description
Technical field
The utility model relates to the lightning current measuring device of a kind of transmission line of electricity and lightning conducter.
Background technology
The lightning strike accident of transmission line of electricity brings massive losses to electrical network every year, in 10kV-35kV equipment breakdown, lightning stroke trip number of times ratio accounts for first of equipment for power transmission and distribution tripping operation total degree, cause the unplanned stoppage in transit number of times of equipment for power transmission and distribution ratio to account for second, had a strong impact on safety and the reliability service of electrical network.Due to the uncertainty in thunder-strike current amplitude and orientation, the protection effect difference of same lightning-protection system to different thunderbolts, lightning failure point is difficult to search.Lightning stream testing apparatus in the past, as Chinese patent CN201087843Y " a kind of lightning stream testing apparatus ", can not locate time and amplitude that thunderbolt occurs, more can not measure lightning current waveform; Chinese patent CN101937015A " a kind of overhead transmission line lightning current and lightning voltage waveform parameter on-Line Monitor Device " need to install a set ofly on every wire, and cost is high, and the employing of its technology path and components and parts is different from the utility model.
Summary of the invention
The purpose of this utility model is exactly to be subject to thunderbolt for transmission line of electricity and lightning conducter at thunderstorm weather, a kind of overhead transmission line lightning current on-Line Monitor Device of low-power consumption is provided, make operations staff just can accurately understand in control center the situation that transmission line of electricity and lightning conducter are struck by lightning, thereby search pointedly the rear trouble spot of circuit thunderbolt, improve safe operation of power system level.
The technical scheme of employing of the present utility model is: a kind of overhead transmission line lightning current on-Line Monitor Device, by Msp430 single-chip microcomputer, FPGA field programmable gate array, trigger circuit, AD gathers match circuit, AD converter, GPS module, GPRS communication module, solar panel, charge controller, accumulator, Luo-coil, digital circuit power source, mimic channel power supply unit composition, is characterized in that: Luo-coil is connected with trigger circuit trigger circuit and Msp430 single-chip microcomputer, AD gathers match circuit, mimic channel power supply is connected, Msp430 single-chip microcomputer and GPS module, GPRS communication module, digital circuit power source, FPGA field programmable gate array is connected, and AD gathers match circuit and AD converter, mimic channel power supply is connected, FPGA field programmable gate array and AD converter, digital circuit power source is connected, digital circuit power source and accumulator, GPRS communication module is connected, mimic channel power supply and accumulator, AD converter is connected, and accumulator is connected with solar panel by charge controller.
This monitoring device is installed in cross arm of tower place, with solar cell for supplying power, on power transmission line shaft tower insulator chain and shaft tower lightning conducter, install sensor, respectively the insulator chain to power transmission line shaft tower and lightning conducter carry out contactless on-line monitoring, sensor adopts rigidity Luo-coil.In the time being struck by lightning near point being monitored, Luo-coil output induced voltage, when voltage reaches certain threshold value, the trigger circuit of device start the collection to lightning current signals, after collection completes, device is sent to terminal computer by communication by the measurement result of lightning current and time and latitude and longitude information that when thunderbolt GPS record occurs, by the comprehensive analysis of terminal computer, the lightning current waveform figure and the waveform parameter that provide each road, instruct pole tower operation maintenance work.
The beneficial effects of the utility model are:
(1) situation can be struck by lightning to the transmission line of electricity of monitoring device and lightning conducter are housed in control center time is monitored;
(2) in the time that overhead transmission line produces fault due to thunderbolt, monitoring result can provide direct guidance for the operation maintenance of transmission line of electricity;
(3) low-power consumption, has reduced accumulator capacity, has increased service time, uses possibility is provided for large-scale promotion;
(4) operation of monitoring device and system does not produce any negative effect to the original device of electric system;
(5) monitoring terminal can be checked the duty of each monitoring device at any time, guarantees the long-term normal work of monitoring device.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present embodiment overhead transmission line lightning current on-Line Monitor Device.
Accompanying drawing 2 is the schematic diagram of control center's terminal computer and multiple monitoring device composition systems.
Embodiment
Accompanying drawing 1 is the structural representation of the present embodiment overhead transmission line lightning current on-Line Monitor Device, and accompanying drawing 2 is the schematic diagram of control center's terminal computer and multiple monitoring device composition systems.This device is by Msp430 single-chip microcomputer, FPGA field programmable gate array, trigger circuit, AD gathers match circuit, AD converter, GPS module, GPRS communication module, solar panel, charge controller, accumulator, Luo-coil, digital circuit power source, mimic channel power supply unit composition, the Luo-coil being enclosed within on power transmission line shaft tower insulator chain and shaft tower lightning conducter is connected with trigger circuit, trigger circuit and Msp430 single-chip microcomputer, AD gathers match circuit, mimic channel power supply is connected, Msp430 single-chip microcomputer and GPS module, GPRS communication module, digital circuit power source, FPGA field programmable gate array is connected, and AD gathers match circuit and AD converter, mimic channel power supply is connected, FPGA field programmable gate array and AD converter, digital circuit power source is connected, digital circuit power source and accumulator, GPRS communication module is connected, mimic channel power supply and accumulator, AD converter is connected, and accumulator is connected with solar panel by charge controller.This monitoring device is using Msp430 and FPGA field programmable gate array as controlling and logic core, and first the voltage signal that Luo-coil produces enters trigger circuit, when voltage signal is greater than trigger circuit threshold value, and monitoring device entering signal acquisition state.Each road lightning current signals gathers match circuit by AD and enters AD converter, and simulating signal becomes digital signal, is temporarily stored in FPGA field programmable gate array.The lightning current data on the time that Msp430 integration GPS provides and latitude and longitude information, each road, are sent to terminal computer by GPRS wireless communication module and carry out state estimation.Monitoring device adopts and wakes work up, and the pattern of dormancy while work, to reach the object that reduces power consumption.
Claims (1)
1. an overhead transmission line lightning current on-Line Monitor Device, by Msp430 single-chip microcomputer, FPGA field programmable gate array, trigger circuit, AD gathers match circuit, AD converter, GPS module, GPRS communication module, solar panel, charge controller, accumulator, Luo-coil, digital circuit power source, mimic channel power supply unit composition, is characterized in that: Luo-coil is connected with trigger circuit trigger circuit and Msp430 single-chip microcomputer, AD gathers match circuit, mimic channel power supply is connected, Msp430 single-chip microcomputer and GPS module, GPRS communication module, digital circuit power source, FPGA field programmable gate array is connected, and AD gathers match circuit and AD converter, mimic channel power supply is connected, FPGA field programmable gate array and AD converter, digital circuit power source is connected, digital circuit power source and accumulator, GPRS communication module is connected, mimic channel power supply and accumulator, AD converter is connected, and accumulator is connected with solar panel by charge controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320770421.3U CN203705534U (en) | 2013-11-30 | 2013-11-30 | On-line monitoring device for lightning current of overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320770421.3U CN203705534U (en) | 2013-11-30 | 2013-11-30 | On-line monitoring device for lightning current of overhead transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705534U true CN203705534U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320770421.3U Expired - Lifetime CN203705534U (en) | 2013-11-30 | 2013-11-30 | On-line monitoring device for lightning current of overhead transmission line |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592506A (en) * | 2013-11-30 | 2014-02-19 | 国家电网公司 | On-line monitoring device for lightning current of overhead transmission line |
| CN104184395A (en) * | 2014-07-18 | 2014-12-03 | 安徽荃富信息科技有限公司 | Solar power supplying system supplying power to monitoring system of power transmission tower |
| CN107831354A (en) * | 2017-12-10 | 2018-03-23 | 南京宁普防雷设备制造有限公司 | Low-power consumption lightning current peak value acquisition system |
-
2013
- 2013-11-30 CN CN201320770421.3U patent/CN203705534U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592506A (en) * | 2013-11-30 | 2014-02-19 | 国家电网公司 | On-line monitoring device for lightning current of overhead transmission line |
| CN104184395A (en) * | 2014-07-18 | 2014-12-03 | 安徽荃富信息科技有限公司 | Solar power supplying system supplying power to monitoring system of power transmission tower |
| CN107831354A (en) * | 2017-12-10 | 2018-03-23 | 南京宁普防雷设备制造有限公司 | Low-power consumption lightning current peak value acquisition system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
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| CX01 | Expiry of patent term |