CN102169135A - Resistive current remote online monitoring system for power transmission line arrester - Google Patents

Resistive current remote online monitoring system for power transmission line arrester Download PDF

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Publication number
CN102169135A
CN102169135A CN2010106126471A CN201010612647A CN102169135A CN 102169135 A CN102169135 A CN 102169135A CN 2010106126471 A CN2010106126471 A CN 2010106126471A CN 201010612647 A CN201010612647 A CN 201010612647A CN 102169135 A CN102169135 A CN 102169135A
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China
Prior art keywords
signal
joins
module
output
transmission line
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CN2010106126471A
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Chinese (zh)
Inventor
尚雪嵩
刘大礼
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NANJING SINDO TECHNOLOGY Co Ltd
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NANJING SINDO TECHNOLOGY Co Ltd
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Priority to CN2010106126471A priority Critical patent/CN102169135A/en
Publication of CN102169135A publication Critical patent/CN102169135A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a resistive current remote online monitoring system for a power transmission line arrester. The system comprises a field device and an indoor device adapted to the field device, wherein the field device comprises a signal acquisition and output module and a signal processing and transmitting module connected with the signal acquisition and output module, the signal acquisition and output module comprises a passive resistance online monitor, a signal input device connected with the passive resistance online monitor, and an optical fiber isolation and signal output device connected with the signal input device; the signal processing and transmitting module comprises an analog signal receiving and converting device connected with the optical fiber isolation and signal output device, a phase locked loop connected with the analog signal receiving and converting device, a singlechip connected with the phase locked loop, and a GPRS (General Packet Radio Service) signal and high-frequency radio signal output device connected with the singlechip, wherein a high-efficiency solar battery and a battery management system are connected to the singlechip. The system can be used for mastering the working conditions of an arrester, recording all conditions of the arrester and analyzing and displaying the conditions in time.

Description

Transmission line of electricity arrester resistance current remote online monitoring system
Technical field
The present invention relates to a kind of pick-up unit, specifically a kind of transmission line of electricity arrester resistance current remote online monitoring system.
Background technology
Ultra-high-tension power transmission line is the infrastructure of electric system power delivery, and its safe operation is to economic construction, people life, social stability and electric system itself, and even national security is significant.In the ultra-high-tension power transmission line, the use of Zinc-Oxide Arrester (MOA) is commonplace.Zinc-Oxide Arrester (MOA) has advantages such as discharge capacity is big, residual voltage is low, reaction velocity is fast, the life-span is long, can effectively protect power equipment, is widely used in the overvoltage protection of electric system.Because MOA has good nonlinear resistance property, so Zinc-Oxide Arrester inside is very close to each other.Just because of very close to each other, the effect of bearing Operation of Electric Systems voltage for a long time at normal valve block in service, and the influence of internal wetted or factor such as overheated, thereby can cause the deterioration of valve block nonlinear resistance property.The main performance of this deterioration is the increase of the current in resistance property under the normal voltage, the increasing of current in resistance property causes the increase of thermal value, the lightning arrester internal temperature is risen, the aging of valve block quickened in the rising of temperature again, form pernicious follow bad, cause MOA to damage at last, may cause the blast of lightning arrester when serious, cause large area blackout owing to overheated.
For the transmission line of electricity lightning arrester is carried out effective on-line monitoring, guarantee the normal use of lightning arrester, monitoring mainly contains three kinds of forms to the transmission line of electricity lightning arrester at present: a kind of is lightning arrester action frequency and total current on-line monitoring, thunderbolt number of times and lightning arrester that this device only enough measures lightning arrester leak total current, can only can not make direct judgement to the deterioration of lightning arrester as the foundation of equipment repair and maintenance.The second one kinds is the visual on-line monitoring of lightning arrester, this device utilizes advanced at present 3G technology, can observe directly the lightning arrester surface condition, but can not understand lightning arrester internal work situation, can not directly judge the lightning arrester deterioration, can only be as the reference of lightning arrester repair and maintenance.The third is by get auxiliary signal on PT (voltage transformer (VT)), this result is that mathematical method calculates for data, because for indirectly measurement obtains, be subjected to third harmonic interference bigger, the net result less stable, the more important thing is that this method is difficult to implement (not having PT on the circuit, the signal that can't adopt) on the line.
Yet, power department is more expected can be the same with the on-line monitoring function of transformer station's lightning arrester, can real-time monitor the more multidata information of lightning arrester operation, and wish and to be sent to the online data message that measures in the pulpit in real time, make the operator on duty can recognize the running status of lightning arrester at any time, in the intelligentized while of realizing transformer station's lightning arrester on-line monitoring, also can realize intellectuality to transmission line of electricity lightning arrester on-line monitoring, really realize the intelligent management of whole electrical network.
Summary of the invention
Problem and shortage at above-mentioned prior art existence, the purpose of this invention is to provide a kind of transmission line of electricity arrester resistance current remote online monitoring system, this system can grasp the lightning arrester working condition at any time, at any time grasp the duty of leakage conductor, in case current in resistance property changes above critical value and starts warning at once, point out maintenance or more exchange device as early as possible.
The objective of the invention is to be achieved through the following technical solutions:
A kind of transmission line of electricity arrester resistance current remote online monitoring system comprises field device and the indoor set suitable with it, and field device comprises that signals collecting and output module reach signal Processing and the transport module that joins with it; Signals collecting and output module comprise passive resistive on-line monitoring instrument, the signal input apparatus that joins with passive resistive on-line monitoring instrument, isolate and signal output apparatus with the optical fiber that signal input apparatus joins, the analog signal conversion device that signal Processing and transport module comprise with optical fiber is isolated and signal output apparatus joins, the phaselocked loop that joins with the analog signal conversion device, the single-chip microcomputer that joins with phaselocked loop, the GPRS signal and the high-frequency wireless signals output unit that join with single-chip microcomputer, wherein be provided with the A/D conversion equipment in the single-chip microcomputer, A/D conversion equipment and analog signal conversion device join, and also are connected to high performance solar batteries and battery management system on the single-chip microcomputer.Described indoor set comprises that signal receives and data processing module reaches data analysis, statistics, storage and the control operation module of joining with it; Signal receives and data processing module comprises with the suitable wireless signal of GPRS signal and high-frequency wireless signals output unit and receives multiplying arrangement, receives the ARM chip that multiplying arrangement joins with wireless signal, and data analysis, statistics, storage and control operation module comprise respectively LCM display device, internet, FLASH, RS232 communication port, RS485 communication port and the keyboard that joins with the ARM chip.
Among the present invention, be provided with the SRAM high-speed cache in the described ARM chip.
The present invention has following beneficial effect:
1, the present invention really solved present domestic to high pressure, UHV (ultra-high voltage) and extra-high voltage long-distance transmission line lightning arrester serviceability can't be directly, problems of monitoring in real time.Can in time grasp the interior lightning arrester working condition in lightning-arrest arbitrarily station of whole piece transmission line of electricity.
But 2 data monitored are many, comprise that lightning arrester thunderbolt number of times, lightning arrester leak total current, lightning arrester leaks current in resistance property, lightning arrester leakage capacity current.Real-time monitors the lightning arrester duty, and with the data in real time of being tested pass the electric system master-control room back, grasp the duty of leakage conductor at any time.
3, the analytic statistics complete function of system, leakage current (comprising lightning arrester three-phase total current, current in resistance property, capacity current) data monitoring and change curve (week curve, month curve, annual curve) can be seen whole year electric current variation tendency and any pairing time of big or small electric current by curve.Curve map of thunderbolt Monitoring Data of number of times and variation (week curve, month curve, annual curve) and pie chart, can see the lightning-arrest situation of degree lightning arrester in the whole year by curve, any thunderbolt time constantly can be seen, and the distribution situation of annual transmission line lightning stroke can be clearly analyzed by pie chart.
4, can generate form prints at any time; Data are preserved power down and were not lost in 10 years.
5, have the overload alarm function, start warning at once, point out maintenance or more exchange device as early as possible in case current in resistance property changes above critical value.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.
As shown in Figure 1, a kind of transmission line of electricity arrester resistance current remote online monitoring system, comprise field device 1 and the indoor set 2 suitable with it, field device 1 comprises that the signals collecting and the output module 3 that join with the high voltage lightning arrester reach signal Processing and the transport module 4 that joins with it, and indoor set 2 comprises that signal receives and data processing module 5 reaches data analysis, statistics, storage and the control operation module 6 of joining with it.Signals collecting and output module 3 comprise passive resistive on-line monitoring instrument 31, are connected to signal input apparatus 32 on passive resistive on-line monitoring instrument 31, be connected to optical fiber and isolate and signal output apparatus 33 on signal input apparatus 32.The analog signal conversion device 41 that signal Processing and transport module 4 comprise with optical fiber is isolated and signal output apparatus 33 joins, on analog signal conversion device 41, be connected to phaselocked loop 42, on phaselocked loop 42, be connected to single-chip microcomputer 43, in single-chip microcomputer 43, be provided with A/D conversion equipment 45, A/D conversion equipment 45 joins with analog signal conversion device 41, is connected to GPRS signal and high-frequency wireless signals output unit 44 and high performance solar batteries and battery management system 46 on single-chip microcomputer 43 respectively.Signal receives and data processing module 5 comprises with the suitable wireless signal of GPRS signal and high-frequency wireless signals output unit 44 and receives multiplying arrangement 51, on wireless signal reception multiplying arrangement 51, be connected to ARM chip 52, in ARM chip 52, be provided with SRAM high-speed cache 53, on ARM chip 52, be connected to LCM display device 61 respectively, internet 62, FLASH 63, RS232 communication port 64, RS485 communication port 65 and keyboard 66, LCM display device 61, internet 62, FLASH 63, RS232 communication port 64, RS485 communication port 65 and keyboard 66 have been formed data analysis jointly, statistics, storage and control operation module 6.
At the scene passive resistive on-line monitoring instrument 31 is connected on the bottom line of lightning arrester 7 during work, receive the electric signal on the lightning arrester 7, electric signal enters optical fiber by signal input apparatus 32 isolates and signal output apparatus 33, optical fiber isolation and 33 pairs of electric signal of signal output apparatus carry out the electric light conversion makes it be converted into light signal, light signal is exported and is entered analog signal conversion device 41, analog signal conversion device 41 carries out the photoelectricity dress with it and changes, light signal is converted into analog electrical signal, analog electrical signal becomes digital electric signal by phaselocked loop 42 and A/D conversion equipment 45, digital electric signal enters GPRS signal and high-frequency wireless signals output unit 44 again, becomes wireless signal output afterwards; Receive multiplying arrangement 51 by indoor wireless signal after the wireless signal output and receive, import into after the reception in the ARM chip 52, ARM chip 52 amplifies wireless signal filtering, revise, and the signal after will handling at last carries out a series of output.
Monitor of the present invention is an inactive component, directly seals on the ground wire of lightning arrester and can monitor data, need not other any subtest equipment; Data acquisition and transmission equipment all adopt the above low-power consumption components and parts of technical grade, and on-the-spot power supply is the high performance solar cells plate, and the life-span can reach more than 25 years, used domestic state-of-the-art high capacity cell, but guarantee no sunlight operate as normal in January; Data transmission adopt wireless GPRS mode or high frequency small wireless MANET mode with data transmission to system host; Main frame with after the data analysis statistics with RS232, USB, CAN422 bus and TCP the IP network mode communication interface is provided; Communications protocol is abideed by the latest requirement IEC61850 of State Grid Corporation of China agreement, can satisfy the communication need of different levels electric power mechanism.

Claims (2)

1. transmission line of electricity arrester resistance current remote online monitoring system, comprise field device (1) and the indoor set (2) suitable with it, it is characterized in that: field device (1) comprises that signals collecting and output module (3) reach signal Processing and the transport module (4) that joins with it; The signal input apparatus (32) that signals collecting and output module (3) comprise the passive resistive on-line monitoring instrument (31) that is connected with lightning arrester, join with passive resistive on-line monitoring instrument (31), the optical fiber that joins with signal input apparatus (32) are isolated and signal output apparatus (33); The analog signal conversion device (41) that signal Processing and transport module (4) comprise with optical fiber is isolated and signal output apparatus (33) joins, the phaselocked loop (42) that joins with analog signal conversion device (41), the single-chip microcomputer (43) that joins with phaselocked loop (42), the GPRS signal and the high-frequency wireless signals output unit (44) that join with single-chip microcomputer (43), wherein be provided with A/D conversion equipment (45) in the single-chip microcomputer (43), A/D conversion equipment (45) joins with analog signal conversion device (41), also is connected to high performance solar batteries and battery management system (46) on the single-chip microcomputer (43); Described indoor set (2) comprises that signal receives and data processing module (5) reaches data analysis, statistics, storage and the control operation module (6) of joining with it; Signal receives and data processing module (5) comprises with the suitable wireless signal of GPRS signal and high-frequency wireless signals output unit (44) and receives multiplying arrangement (51), receives the ARM chip (52) that multiplying arrangement (51) joins with wireless signal, and data analysis, statistics, storage and control operation module (6) comprise respectively LCM display device (61), internet (62), FLASH (63), RS232 communication port (64), RS485 communication port (65) and the keyboard (66) that joins with ARM chip (52).
2. transmission line of electricity arrester resistance current remote online monitoring system according to claim 1 is characterized in that: be provided with SRAM high-speed cache (53) in ARM chip (52).
CN2010106126471A 2010-12-30 2010-12-30 Resistive current remote online monitoring system for power transmission line arrester Pending CN102169135A (en)

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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
CN102798786A (en) * 2012-09-10 2012-11-28 天津协盛闪宁科技有限公司 Universal intelligent lightning protection monitoring module and method
CN104459297A (en) * 2013-11-27 2015-03-25 南京世都科技有限公司 System utilizing double-frequency transmission and based on FFT positive and negative conversion relative calibration resistive current measurement
CN104459296A (en) * 2013-11-27 2015-03-25 南京世都科技有限公司 Resistive current measuring method and device based on forward and inverse FFT relative calibration
CN104912648A (en) * 2015-04-25 2015-09-16 成都诚邦动力测试仪器有限公司 High-sensitive water temperature detecting system for engine
CN106066421A (en) * 2016-08-12 2016-11-02 国家电网公司 A kind of lightning arrester discharge current monitoring system and method
CN106208022A (en) * 2016-08-30 2016-12-07 合肥智博电气有限公司 Harmonic wave and surge overvoltage protection device
CN108008178A (en) * 2017-11-28 2018-05-08 指明集团有限公司 Wireless multifunctional power network signal Transmission system

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CN201278005Y (en) * 2008-09-17 2009-07-22 西安理工大学 Wireless monitoring apparatus for electric power system lightning arrestor
CN101799492A (en) * 2010-03-23 2010-08-11 胡淼龙 Arrester wireless on-line monitoring device
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Cited By (10)

* Cited by examiner, † Cited by third party
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
CN102798786A (en) * 2012-09-10 2012-11-28 天津协盛闪宁科技有限公司 Universal intelligent lightning protection monitoring module and method
CN104459297A (en) * 2013-11-27 2015-03-25 南京世都科技有限公司 System utilizing double-frequency transmission and based on FFT positive and negative conversion relative calibration resistive current measurement
CN104459296A (en) * 2013-11-27 2015-03-25 南京世都科技有限公司 Resistive current measuring method and device based on forward and inverse FFT relative calibration
CN104459297B (en) * 2013-11-27 2017-10-13 南京世都科技有限公司 A kind of utilization double frequency transmission and the system measured based on the positive inverse transformation calibration current in resistance property of Fourier FFT
CN104459296B (en) * 2013-11-27 2017-10-13 南京世都科技有限公司 A kind of method and device based on the relatively quasi- current in resistance property measurement of the positive inverse transformations of Fourier FFT
CN104912648A (en) * 2015-04-25 2015-09-16 成都诚邦动力测试仪器有限公司 High-sensitive water temperature detecting system for engine
CN106066421A (en) * 2016-08-12 2016-11-02 国家电网公司 A kind of lightning arrester discharge current monitoring system and method
CN106208022A (en) * 2016-08-30 2016-12-07 合肥智博电气有限公司 Harmonic wave and surge overvoltage protection device
CN108008178A (en) * 2017-11-28 2018-05-08 指明集团有限公司 Wireless multifunctional power network signal Transmission system

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