CN201277997Y - Full parameter on-line monitoring apparatus for overhead transmission line and lightning arrester current - Google Patents
Full parameter on-line monitoring apparatus for overhead transmission line and lightning arrester current Download PDFInfo
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- CN201277997Y CN201277997Y CNU2008201914823U CN200820191482U CN201277997Y CN 201277997 Y CN201277997 Y CN 201277997Y CN U2008201914823 U CNU2008201914823 U CN U2008201914823U CN 200820191482 U CN200820191482 U CN 200820191482U CN 201277997 Y CN201277997 Y CN 201277997Y
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Abstract
The utility model discloses an on-line monitoring device for the lightning current full-parameters of an overhead transmission line and a lightning rod, belonging to the lightning protection technology of electric devices in the electric system. The on-line monitoring device adopts the structure that a current sensor (1), a lightning signal sampling unit (9), a data receiving and GPRS and BT transmission unit (5), an Internet (6) and a user terminal (7) which are communicated in sequence; a FTP server (8) is connected with the Internet (6); a solar panel (4), a storage battery (3) and a voltage converter (2) are connected in sequence; and the voltage converter (2) is respectively connected with the lightning signal sampling unit (9) and the data receiving and GPRS and BT transmission unit (5). The utility model has the advantages of simple structure, automatic operation, stable detection and accurate data; lightning data after being processed by a single-chip microcomputer can be transmitted to the Internet through a mobile network; and a user can directly transfer the transmission data of the Internet.
Description
Technical field
The utility model relates to electric system electrical equipment shocking preventing technology, relate in particular to a kind of overhead transmission line and lightning rod lightning current population parameter on-Line Monitor Device, be applicable to that the form that overhead transmission line or lightning rod are struck by lightning is judged and the measurement of lightning current parameter and waveform.
Background technology
Lightning disturbance every year of extra high voltage network is in service very outstanding electrical network.Along with the swift and violent increase of line length, transmission line caused by lightning strike accident showed increased.Shielding and counterattack do not have clear and definite criterion, and searching of trouble spot is very difficult, and be especially extremely difficult especially in mountain area and high altitude localities.And it is few as the getable actual measurement lightning current waveform of the present institute of the lightning rod of direct striking thunder prevention device.
Atmospheric electrical phenomena is extremely complicated, and electric geometric method (EGM) commonly used has provided too optimistic estimation to the lightning shielding performance of circuit.Because thunder-strike current can be from several kA to hundreds of kA under the actual conditions, come the orientation of thunder also to alter a great deal, same guard system is very different to the protection effect of different thunderbolts, adding influences the complicated and changeable of significant topography and geomorphology and meteorologic factor to protection effect, transmission line of electricity protection usually occurs and lost efficacy in some location, become the easily section of hitting of shielding tripping operation accident.
Is the shielding angle of overhead transmission line lightning conducter got much suitable actually? do much lightning currents make transmission line of electricity shielding or counterattack occur? flashover which take place in insulator chain mutually? is the amplitude of lightning current of thunderbolt circuit much? how is actual lightning current waveform? or the like, be the question in dispute in the world always.
A kind of lightning current population parameter on-Line Monitor Device is installed on extra high voltage network or lightning rod; be convenient in time find fault; give power department according to metrical information with take the lightning protection measure targetedly; for iron tower design from now on provides the firsthand information; also the formulation for lightning current waveform and amplitude standard provides strong support, and there is very positive effect the shocking preventing technology status in the world of improving China.
Summary of the invention
The purpose of this utility model just is to overcome the shortcoming and defect that prior art exists, and a kind of overhead transmission line and lightning rod lightning current population parameter on-Line Monitor Device are provided; The utlity model has the parameters such as amplitude of lightning current, time and waveform of monitoring transmission line of lightning strike; Can judge thunderbolt overhead line structures number, thunderbolt lightning conducter automatically or lead is separate, lightning current polarity and thunderbolt form (counterattack or shielding), realize location fast; Simple in structure, operation automation, monitoring is stable, and data are accurate.
The purpose of this utility model is achieved in that
This device comprises current sensor, voltage changer, accumulator, solar panel, Data Receiving and GPRS, BT transmission unit, INTERNET net, user terminal, ftp server and lightning strike signals sampling unit;
Current sensor, lightning strike signals sampling unit, Data Receiving and GPRS, BT transmission unit, INTERNET net and user terminal are communicated with successively, and ftp server is connected with the INTERNET net;
Solar panel, accumulator and voltage changer are connected successively, and voltage changer is connected with lightning strike signals sampling unit, Data Receiving and GPRS, BT transmission unit respectively.
Principle of work of the present utility model is:
When thunderbolt takes place, after the current sensor of installing on transmission tower or the lightning rod collects the lightning current waveform by electromagnetic induction principle, be transformed to voltage signal and arrive the lightning strike signals sampling unit input end of being made up of front end processor through cable transmission, this input end support is no more than 6 road signal input channels at most.The lightning current waveform sends Data Receiving and GPRS, BT transmission unit to after lightning strike signals sampling unit mould/number is handled, provide the lightning stroke flashover data by the GPRS common platform to far-end computer, or, realize fast judgement to separate, the position of the far-end wireless monitor of the caused flashover phenomenon of thunderbolt shaft tower and " counterattack ", " shielding " etc. by Bluetooth antenna wireless receiving on the spot.Selected communication mode has taken into full account the wireless transmission of fast and reliable and with low cost, and communication cost is low, is easy to characteristics such as realization.
The utlity model has following advantage and good effect:
(1) current measuring range is ± (3～150) kA, has comprised that transmission line of electricity and lightning rod may suffer the almost four corner of lightning current, satisfy the needs of actual engineering;
(2) totally digitilized data handling system, A/D switching rate 10M time/second, the sampling of 5 channel parallels, every passage record word length 1s satisfies multiple thunder record needs;
(3) each passage can be measured the lightning current that flows through phase line and ground wire simultaneously, and the moment takes place for record lightning current waveform and thunderbolt, intelligent decision thunderbolt circuit form, the accurate fast location of realizing the thunderbolt circuit;
(4) adopt GPRS Radio Transmission Technology and Bluetooth technology, realize that the spread of the rumours of sampled data file to the take over party, makes things convenient for data in real time monitoring and shared;
(5) be provided with and simulate dash current self test mode and outdoor equipment power supply Report mode every day, guarantee the long-term operate as normal of device.
In a word, the utility model is simple in structure, and operation automation detects and stablizes, and data are accurate; Thunderbolt data after single-chip microcomputer is handled can be sent to the INTERNET net by the mobile network, and the user can directly call the transmission data of INTERNET net, also can directly receive data by the bluetooth sending and receiving device at the scene simultaneously.
Description of drawings
Fig. 1 is this monitoring device block diagram;
Fig. 2 is the current sensor structural representation;
Fig. 3 is lightning strike signals sampling unit (front end processor) block diagram;
Wherein:
The 1-current sensor;
The 2-supply convertor;
The 3-accumulator;
The 4-solar panel;
5-Data Receiving and GPRS, BT transmission unit;
The 6-INTERNET net;
The 7-user terminal;
The 8-FTP server;
9-lightning strike signals sampling unit;
9.1-high-speed sampling channel signal conditioning;
9.2-high-Speed Data-Acquisition Module;
9.3-bus control unit;
9.4-singlechip microcontroller;
9.4.1-debugging keyboard;
9.4.2-debugging LCD;
9.4.3-RS232 communication port;
9.4.4-real-time clock;
9.5-address generation, channel recognition, coordination control module;
9.6-reference voltage generator;
9.7-low speed sampling channel signal condition.
Embodiment
Describe in detail below in conjunction with drawings and Examples:
One, lightning current population parameter on-Line Monitor Device
(1), general structure
As Fig. 1, this device comprises current sensor 1, voltage changer 2, accumulator 3, solar panel 4, Data Receiving and GPRS, BT transmission unit 5, INTERNET net 6, user terminal 7, ftp server 8 and lightning strike signals sampling unit 9;
Its annexation and function thereof are:
Current sensor 1, lightning strike signals sampling unit 9, Data Receiving and GPRS, BT transmission unit 5, INTERNET net 6 and user terminal 7 are communicated with successively, and ftp server 8 is connected with INTERNET net 6; Its function is reception, gathers lightning current signals, and data processing, transmission, wireless transmission are stored to ftp server 8, and user terminal 7 can directly call the transmission data of INTERNET net 6;
(2) structure of each big function block
1, current sensor 1
As Fig. 2, current sensor 1 adopts traditional Rogowsky coil, coiling voluntarily.
2, voltage changer 2, accumulator 3 and solar panel 4
3, Data Receiving and GPRS, BT transmission unit 5
Disposable plates is technical grade PC104 in Data Receiving and GPRS, the BT transmission unit 5, and the GPRS of the band antenna of purchasing is a universal industrial level module.
4, INTERNET net 6, user terminal 7, ftp server 8
Use public network INTERNET net 6 as the Monitoring Data transmission channel.And with the PC of All-China Federation of Taiwan Compatriots net as user terminal 7.Installation data library software Access on user terminal 7 machines, decoder software WinRAR, and the upper computer software of use VB independent development realize teledata parsing and management function.Ftp server 8 on the user terminal 7 is realized by dynamic territory analyzing software PeanutHull and ftp server 8 software Serv-U.
5, lightning strike signals sampling unit 9 (5 road 10M time/second)
(1) structure of lightning strike signals sampling unit 9
As Fig. 3, lightning strike signals sampling unit 9 comprises high-speed sampling channel signal conditioning 9.1, high-Speed Data-Acquisition Module 9.2, bus control unit 9.3, singlechip microcontroller 9.4, address generation, channel recognition and coordination control module 9.5, reference voltage generator 9.6 and low speed sampling channel signal condition 9.7;
Described singlechip microcontroller 9.4 comprises debugging keyboard 9.4.1, debugging LCD 9.4.2, RS232 serial ports 9.4.3 and real-time timepiece chip 9.4.4;
Its annexation and function thereof are:
High-speed sampling channel signal conditioning 9.1 is connected with high-Speed Data-Acquisition Module 9.2 front and back;
Singlechip microcontroller 9.4 interconnects with high-Speed Data-Acquisition Module 9.2, bus control unit 9.3, address generation, channel recognition and coordination control module 9.5 respectively;
Bus control unit 9.3 also interconnects with high-Speed Data-Acquisition Module 9.2 and address generation, channel recognition and coordination control module 9.5 respectively;
Pedestal generator 9.6 interconnects with high-speed sampling channel signal conditioning 9.1, low speed sampling channel signal condition 9.7 respectively, and low speed sampling channel signal condition 9.7 interconnects with singlechip microcontroller 9.4.
The principle of work of lightning strike signals sampling unit 9 is:
The sample mode of high-speed data sampling channel is: the sampling of 10 bipolaritys, 10MHz sampling rate; The low speed data sampling channel is considered extend testing ambient temperature and humidity, insulator chain leakage current etc.
Singlechip microcontroller 9.4 realizes that the controlling of sampling of each passage and unloading, real-time clock, the serial ports of sampled data send, and is the core of system's operate as normal.Sampling is by the sampling on singlechip microcontroller 9.4 each road of control; Data transmit and access is finished by bus control unit 9.3, and address generation, channel recognition and coordination control module 9.5 are finished the coordination of access address and passage;
Deliver to singlechip microcontroller 9.4 after the signals collecting such as 9.7 pairs of wind speed of low speed sampling channel signal condition, temperature;
Reference voltage with the conditioning of low speed sampled signal is produced by pedestal generator 9.6 at a high speed; The data of gathering are passed to Data Receiving and GPRS, BT transmission unit 5 by singlechip microcontroller 9.4 by RS232 communication port 9.4.3, to realize the asynchronous transmission of sampled data; The clock signal that real-time clock 9.4.4 produces is delivered to singlechip microcontroller 9.4.
Debugging is used for debugging with LCD 9.4.2 interface with keyboard 9.4.1 and debugging.
The sensor mounting points can be installed the lightning flash over signal sampling point of no more than 6 current sensors, and the corresponding sampling channel of each sampled point is carried out the high-speed data acquisition of 10 10MHZ by 1 " channel sample plate ".The input end that the small size " channel sample plate " of maximum 6 accurate designs is fixed on lightning strike signals sampling unit 9 can carry out the data acquisition of a plurality of passages simultaneously.By singlechip microcontroller 9.4 timesharing the image data of 5 passages is handled, and realized the serial data communication.
(2) structure of each little functional block
Each following little functional block is the common function piece.
1. the conditioning of high-speed sampling channel signal 9.1
With the voltage of current sensor output routinely circuit carry out signal attenuation, filtering, remove high frequency noise; And stack dc reference bias voltage, export to high-Speed Data-Acquisition Module 9.2 at last.
2. high-Speed Data-Acquisition Module 9.2
To import analog signal conversion by the A/D-TLC5540 chip is digital signal, is stored in the cache chip.
3. bus control unit 9.3
Distribute sampling system clock bus, address bus, data bus, define communications protocol and steering logic between each module and the singlechip microcontroller 9.4.
4. singlechip microcontroller 9.4
Adopt the transmission of C8051F020 chip microcontroller signal, have functions such as sampling triggering and RS232 communication interface.
5. address generation, channel recognition and coordination control module 9.5
Use programmable logic device (PLD), realize that the high-Speed Data-Acquisition Module passage indicates, extract data, the address of cache chip, and signals specification logic and sequential.
6. reference voltage generator 9.6
Utilize the inner integrated D/A module of C8051F020 single-chip microcomputer to produce reference voltage signal, and export to conditioning 9.1 of high-speed sampling channel signal and low speed sampling channel signal condition 9.7 by the voltage follower buffering.
7. low speed sampling channel signal condition 9.7
Utilize the inner integrated A/D module of C8051F020 single-chip microcomputer to input low speed analog signal sampling.
Claims (2)
1, a kind of overhead transmission line and lightning rod lightning current population parameter on-Line Monitor Device is characterized in that:
Comprise current sensor (1), voltage changer (2), accumulator (3), solar panel (4), Data Receiving and GPRS, BT transmission unit (5), INTERNET net (6), user terminal (7), ftp server (8) and lightning strike signals sampling unit (9);
Current sensor (1), lightning strike signals sampling unit (9), Data Receiving and GPRS, BT transmission unit (5), INTERNET net (6) and user terminal (7) are communicated with successively, and ftp server (8) is connected with INTERNET net (6);
Solar panel (4), accumulator (3) and voltage changer (2) are connected successively, and voltage changer (2) is connected with lightning strike signals sampling unit (9), Data Receiving and GPRS, BT transmission unit (5) respectively.
2, by described a kind of overhead transmission line of claim 1 and lightning rod lightning current population parameter on-Line Monitor Device, it is characterized in that:
Lightning strike signals sampling unit (9) comprises the conditioning of high-speed sampling channel signal (9.1), high-Speed Data-Acquisition Module (9.2), bus control unit (9.3), singlechip microcontroller (9.4), address generation, channel recognition and coordination control module (9.5), reference voltage generator (9.6) and low speed sampling channel signal condition (9.7);
Described singlechip microcontroller (9.4) comprises debugging keyboard (9.4.1), debugging LCD (9.4.2), RS232 serial ports (9.4.3) and real-time timepiece chip (9.4.4);
High-speed sampling channel signal conditioning (9.1) is connected with high-Speed Data-Acquisition Module (9.2) front and back;
Singlechip microcontroller (9.4) interconnects with high-Speed Data-Acquisition Module (9.2), bus control unit (9.3), address generation, channel recognition and coordination control module (9.5) respectively;
Bus control unit 9.3 also interconnects with high-Speed Data-Acquisition Module (9.2) and address generation, channel recognition and coordination control module (9.5) respectively;
Pedestal generator (9.6) interconnects with high-speed sampling channel signal conditioning (9.1), low speed sampling channel signal condition (9.7) respectively, and low speed sampling channel signal condition (9.7) interconnects with singlechip microcontroller (9.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201914823U CN201277997Y (en) | 2008-10-17 | 2008-10-17 | Full parameter on-line monitoring apparatus for overhead transmission line and lightning arrester current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201914823U CN201277997Y (en) | 2008-10-17 | 2008-10-17 | Full parameter on-line monitoring apparatus for overhead transmission line and lightning arrester current |
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| Publication Number | Publication Date |
|---|---|
| CN201277997Y true CN201277997Y (en) | 2009-07-22 |
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| CNU2008201914823U Expired - Fee Related CN201277997Y (en) | 2008-10-17 | 2008-10-17 | Full parameter on-line monitoring apparatus for overhead transmission line and lightning arrester current |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435871A (en) * | 2011-09-05 | 2012-05-02 | 上海格蒂电力科技股份有限公司 | On-line monitoring system for data collection of electric arresters based on GPS (Global Positioning System) synchronization |
| CN102539902A (en) * | 2012-02-23 | 2012-07-04 | 广东电网公司电力科学研究院 | Method for identifying direct lightning strike and inductive lightning strike of transmission line based on direct measurement of traveling wave |
| CN102707135A (en) * | 2012-06-29 | 2012-10-03 | 重庆大学 | Lightning current online monitoring system of overhead transmission line based on differential ring |
| CN102778614A (en) * | 2011-05-10 | 2012-11-14 | 江苏新澳电力技术有限公司 | Intelligent on-line monitoring system of lightning arrester |
| CN102998511A (en) * | 2012-10-29 | 2013-03-27 | 中国电力科学研究院 | Discharge current monitoring device of lightning arrester |
| CN103487627A (en) * | 2012-06-11 | 2014-01-01 | 王铁流 | Passive tower grounding lightning current intensity detector |
| CN104330682A (en) * | 2014-10-08 | 2015-02-04 | 南京信息工程大学 | Lightning strip on-off performance detector |
| CN104569552A (en) * | 2015-01-09 | 2015-04-29 | 南方电网科学研究院有限责任公司 | Method for determining traveling wave protection lightning stroke action boundary value of extra-high voltage direct-current transmission line |
| CN110426607A (en) * | 2019-06-03 | 2019-11-08 | 江苏德大石化科技有限公司 | The monitoring system of arc flash occurs for a kind of identification lightning current |
| CN111650459A (en) * | 2020-06-11 | 2020-09-11 | 常州工业职业技术学院 | Wireless passive online monitor with gap lightning arrester |
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2008
- 2008-10-17 CN CNU2008201914823U patent/CN201277997Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102778614A (en) * | 2011-05-10 | 2012-11-14 | 江苏新澳电力技术有限公司 | Intelligent on-line monitoring system of lightning arrester |
| CN102435871A (en) * | 2011-09-05 | 2012-05-02 | 上海格蒂电力科技股份有限公司 | On-line monitoring system for data collection of electric arresters based on GPS (Global Positioning System) synchronization |
| CN102539902A (en) * | 2012-02-23 | 2012-07-04 | 广东电网公司电力科学研究院 | Method for identifying direct lightning strike and inductive lightning strike of transmission line based on direct measurement of traveling wave |
| CN103487627A (en) * | 2012-06-11 | 2014-01-01 | 王铁流 | Passive tower grounding lightning current intensity detector |
| CN102707135A (en) * | 2012-06-29 | 2012-10-03 | 重庆大学 | Lightning current online monitoring system of overhead transmission line based on differential ring |
| CN102998511A (en) * | 2012-10-29 | 2013-03-27 | 中国电力科学研究院 | Discharge current monitoring device of lightning arrester |
| CN102998511B (en) * | 2012-10-29 | 2016-04-20 | 中国电力科学研究院 | A kind of lightning arrester discharge current monitoring device |
| CN104330682A (en) * | 2014-10-08 | 2015-02-04 | 南京信息工程大学 | Lightning strip on-off performance detector |
| CN104569552A (en) * | 2015-01-09 | 2015-04-29 | 南方电网科学研究院有限责任公司 | Method for determining traveling wave protection lightning stroke action boundary value of extra-high voltage direct-current transmission line |
| CN104569552B (en) * | 2015-01-09 | 2018-02-06 | 南方电网科学研究院有限责任公司 | Extra high voltage direct current transmission line traveling-wave protection thunderbolt trip boundary value determines method |
| CN110426607A (en) * | 2019-06-03 | 2019-11-08 | 江苏德大石化科技有限公司 | The monitoring system of arc flash occurs for a kind of identification lightning current |
| CN111650459A (en) * | 2020-06-11 | 2020-09-11 | 常州工业职业技术学院 | Wireless passive online monitor with gap lightning arrester |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20131017 |