CN107884618A - Arrester on-line monitoring system - Google Patents
Arrester on-line monitoring system Download PDFInfo
- Publication number
- CN107884618A CN107884618A CN201711096086.2A CN201711096086A CN107884618A CN 107884618 A CN107884618 A CN 107884618A CN 201711096086 A CN201711096086 A CN 201711096086A CN 107884618 A CN107884618 A CN 107884618A
- Authority
- CN
- China
- Prior art keywords
- arrester
- circuit
- data
- extension set
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The present invention relates to lightning rod monitoring technical field, and in particular to a kind of arrester on-line monitoring system, including terminal data collecting unit, data communication transmission unit and background server unit；The present invention can be monitored in real time to data such as the busbar voltage on arrester, the total current for flowing through it and number of lightning strokes, and provide accurately and effectively data, reduce the probability of accident generation, extend maintenance interval, reduce interruption maintenance number and time, the time of maintenance is shortened, ensures the safe operation of power system.
Description
Technical field
The present invention relates to lightning rod monitoring technical field, and in particular to a kind of arrester on-line monitoring system.
Background technology
Metal zinc oxide lightning arrester is one of key equipment of power equipment, and it is to weigh to flow through the current in resistance property on arrester
One important indicator of lightning arrester insulation degree.By to the total current of arrester, current in resistance property, capacity current, number of lightning strokes
And the thunderbolt moment carries out real time on-line monitoring, can be achieved to monitor the insulation status of high voltage electric equipment in real time；Meanwhile
The potential failure of metal zinc oxide lightning arrester can be found in time by research and application data and important number is provided for repair based on condition of component
According to foundation, a strength, reliable guarantee are provided for power system security, reliable, stably, economic operation, is examined for operation
The maintenance foundation that personnel provide reliable apparatus insulated information and science is repaiied, occurs so as to reach reduction accident, extends between maintenance
Every reducing interruption maintenance number and time, improve the purpose of utilization rate of equipment and installations and whole economic efficiency.
Existing lightning rod monitoring device can not be simultaneously to multiple data such as busbar voltage, Leakage Current, number of lightning strokes
Source is monitored, and is inconvenient to debug, and detection efficiency does not reach requirement, the often easy distortion during data transfer, no
The validity of data can be ensured.
The content of the invention
In order to solve the above-mentioned technical problem the deficiency in, it is an object of the invention to：A kind of arrester on-line monitoring is provided
System, the data such as the busbar voltage on arrester, the total current for flowing through it and number of lightning strokes can be monitored in real time, and
Accurately and effectively data are provided, ensure the safe operation of power system.
The present invention is that technical scheme is used by solving its technical problem：
The arrester on-line monitoring system, including terminal data collecting unit, data communication transmission unit and backstage
Server unit；
Terminal data collecting unit includes terminal extension set, what terminal extension set collection voltages transmitter and current transducer gathered
Analogue data, and by the place of I/V built-up circuits, filter circuit, amplifying circuit, phase detecting circuit and analog to digital conversion circuit
Reason, the numerical data stablized；
Background server unit includes terminal main website, and terminal main website is connected to server by fiber optic network, and user passes through
Server is stored to Monitoring Data, analyzed, checked, is monitored on-line in real time；
Data communication transmission unit includes ZigBee wireless networks, between terminal main website and terminal extension set using ZigBee without
Gauze network carries out data communication.
Further preferably, terminal extension set is encapsulated using metal-enclosed type shell, and device housings wiring walks line interface using high
Spend the air port plug of waterproof.
Further preferably, terminal extension set uses arm processor, and arm processor carries power supply circuit, oscillating circuit, reset
Circuit and watchdog circuit.
Further preferably, terminal extension set monitors the electricity of the bus on arrester using the voltage transmitter of different pressure drop ratios
Pressure, the total current and number of lightning strokes of arrester are flowed through to monitor using the current transducer of different turn ratios.
Further preferably, terminal extension set is powered using solar cell power generation system, and solar cell power generation system includes
Solar panel, battery and photovoltaic controller.
Compared with prior art, the invention has the advantages that：
The present invention can carry out real-time to data such as the busbar voltage on arrester, the total current for flowing through it and number of lightning strokes
Monitoring, and provide accurately and effectively data, reduce the probability of accident generation, extend maintenance interval, reduce interruption maintenance
Number and time, the time of maintenance is shortened, ensures the safe operation of power system.
Brief description of the drawings
Fig. 1 structured flowcharts of the present invention；
Fig. 2 terminal data collecting unit structured flowcharts of the present invention；
Fig. 3 single-chip microcomputers of the present invention and peripheral circuit diagram；
The circuit diagram of Fig. 4 I/V built-up circuits of the present invention；
The circuit diagram of Fig. 5 filter circuits of the present invention；
The circuit diagram of Fig. 6 signal input interfaces of the present invention；
The circuit diagram of Fig. 7 amplifying circuits of the present invention；
The circuit diagram of Fig. 8 voltage extraction circuits of the present invention；
The circuit diagram of Fig. 9 phase difference output circuits of the present invention；
The circuit diagram of Figure 10 phase detecting circuits of the present invention.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Embodiment 1
As Figure 1-10 shows, arrester on-line monitoring system of the present invention, including terminal data collecting unit, data are led to
Interrogate transmission unit and background server unit；
Terminal data collecting unit includes terminal extension set, what terminal extension set collection voltages transmitter and current transducer gathered
Analogue data, and by the place of I/V built-up circuits, filter circuit, amplifying circuit, phase detecting circuit and analog to digital conversion circuit
Reason, the numerical data stablized；
Background server unit includes terminal main website, and terminal main website is connected to server by fiber optic network, on server
Java software system is run, user is stored to Monitoring Data by server, analyzed, checked, arrester can be achieved
Total current, current in resistance property, capacity current, number of lightning strokes and thunderbolt moment monitor on-line in real time；
Data communication transmission unit includes ZigBee wireless networks, between terminal main website and terminal extension set using ZigBee without
Gauze network carries out data communication.
In order to strengthen the ability of electromagnetism interference, terminal extension set is encapsulated using metal-enclosed type shell, circuit and circuit
In wire carry out insulation processing in design with Metal shielding shell, for example circuit board firm banking uses plastic plate, circuit
The fixation of plate firm banking and Metal shielding shell uses nylon screw.
Terminal data collecting device place installed outdoors mostly, can be corroded by rainwater, for protection equipment inside
Circuit board has not been done special water-proofing treatment by its infringement, is encapsulated using metal-enclosed type shell, and device housings wiring cabling connects
Mouth uses the air port plug of height waterproof, can effectively play waterproof action, ensures that equipment is run steadily in the long term.
Terminal extension set uses arm processor, and arm processor uses STM32F103x series A RM processors, arm processor
Carry power supply circuit, oscillating circuit, reset circuit and watchdog circuit, all hardware circuit and be integrated in 4 layers of PCB circuits
On plate, outside frequently-used data interface is left.
Arrester on-line monitoring need gather be carried on Zinc-Oxide Arrester busbar voltage, flow through it total current and
Three immediate datas of number of lightning strokes, terminal extension set monitor the electricity of the bus on arrester using the voltage transmitter of different pressure drop ratios
Pressure, the total current and number of lightning strokes of arrester are flowed through to monitor using the current transducer of different turn ratios, voltage transmitter, electricity
The operation principle of flow transmitter is all to realize that such benefit is will not to destroy and transform using the electromagnetic induction principle of coil
Original arrester circuit.
Terminal extension set is powered using solar cell power generation system, and solar cell power generation system includes solar cell
Plate, battery and photovoltaic controller；Solar panel and battery Proper Match, it ensure that each terminal extension set is maximum and continue
Navigate the cycle, ensure that, in continuous rainy weather, terminal extension set also ensures normal work.Such electric power system eliminates numerous
Trivial installation work, original layout designs in station are ensure that, also a saving the energy.
The three phase transmission line of multiple data sources such as busbar voltage, Leakage Current, number of lightning strokes is required for being separately monitored, and this is
Sub-moduleization of uniting design, installs and debugs more convenient, monitoring efficiency is also higher.
The voltage and current signal exported from voltage or current transducer is smaller, it is necessary to after amplifying circuit amplifies
The data processing of next step can be carried out.In order to sufficiently amplify and be not in the phase offset problem of voltage and current, adopt
The mode amplified step by step with multistage.As shown in figs. 3-10, signal input interface circuit is used to input the electric current of collection, voltage letter
Number, after the electric current I1 of output is via I/V built-up circuits, output current I2, after electric current I2 filters via filter circuit, output current
I3, filter circuit mainly realize that electric current I3 accesses arm processor after the amplification via LM358 amplifiers using OP07 wave filters
STM32F103CBT6 17 pins, realize the collection of current-mode analog quantity；It is defeated after voltage U1 is via the amplification of voltage extraction circuit
Go out voltage U2, in order to be further ensured that the quality of signal, add phase offset compensation circuit, ensure amplifying circuit distortionless
Amplification, most effective most real data are reduced, as shown in Figure 10, phase detecting circuit mainly utilizes amplifier LM358 and anti-phase
Device 74S05 realizes phase offset compensation function, and LM358 2 pins, voltage U2 concatenation electricity are accessed after electric current I2 series resistors R30
LM358 6 pins are accessed after resistance R31.Electric current I4 and voltage the U3 end of phase detecting circuit are respectively connected to phase difference output circuit
Input 1 pin and 2 pins just with door SN74LVC1G08DBVRG4, SN74LVC1G08DBVRG4 4 pins access ARM processing
Device STM32F103CBT6 45 pins.
Arm processor STM32F103CBT6 carries 2 12 fast A/D converters in itself, but in order to more accurately will
The analog voltage and current signal of collection are converted into data signal, the a/d converter that we are not carried using processor, and
It is the independent AD analog-digital converters for employing outside 24 high-precision high-speed.
Using AD7767 chips as this Analog to Digital Converter, it is that a high-precision 24bit sampling SAR modulus turns
Chip is changed, it has a big input dynamic range.Small voltage change can be detected, its output data can pass through PCI
Or USB system obtains, the agreement for reading data is similar to SPI.
Claims (5)
1. a kind of arrester on-line monitoring system, including terminal data collecting unit, data communication transmission unit and backstage take
Business device unit, it is characterised in that
Terminal data collecting unit includes the simulation of terminal extension set, terminal extension set collection voltages transmitter and current transducer collection
Data, and pass through the processing of I/V built-up circuits, filter circuit, amplifying circuit, phase detecting circuit and analog to digital conversion circuit,
The numerical data stablized；
Background server unit includes terminal main website, and terminal main website is connected to server by fiber optic network, and user passes through service
Device is stored to Monitoring Data, analyzed, checked, is monitored on-line in real time；
Data communication transmission unit includes ZigBee wireless networks, and ZigBee wireless networks are used between terminal main website and terminal extension set
Network carries out data communication.
2. arrester on-line monitoring system according to claim 1, it is characterised in that terminal extension set uses metal-enclosed type
Shell is encapsulated, and the air port plug that line interface uses height waterproof is walked in device housings wiring.
3. arrester on-line monitoring system according to claim 1, it is characterised in that terminal extension set uses arm processor,
Arm processor carries power supply circuit, oscillating circuit, reset circuit and watchdog circuit.
4. arrester on-line monitoring system according to claim 1, it is characterised in that terminal extension set uses different pressure drop ratios
Voltage transmitter monitor the busbar voltage on arrester, using the current transducers of different turn ratios come monitor flow through it is lightning-arrest
The total current and number of lightning strokes of device.
5. arrester on-line monitoring system according to claim 1, it is characterised in that terminal extension set uses solar cell
Electricity generation system is powered, and solar cell power generation system includes solar panel, battery and photovoltaic controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096086.2A CN107884618A (en) | 2017-11-09 | 2017-11-09 | Arrester on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096086.2A CN107884618A (en) | 2017-11-09 | 2017-11-09 | Arrester on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107884618A true CN107884618A (en) | 2018-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711096086.2A Pending CN107884618A (en) | 2017-11-09 | 2017-11-09 | Arrester on-line monitoring system |
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| CN (1) | CN107884618A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108920672A (en) * | 2018-07-09 | 2018-11-30 | 安徽诚意电气科技有限公司 | A kind of lightning data management system based on lightning rod |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120239321A1 (en) * | 2009-12-08 | 2012-09-20 | Raychem International (Irish Branch) | Surge arrestor condition monitoring |
| CN103513092A (en) * | 2013-09-17 | 2014-01-15 | 国家电网公司 | Zinc oxide arrester on-line monitoring system based on wireless transmission |
| CN205958658U (en) * | 2016-05-18 | 2017-02-15 | 国网新疆电力公司巴州供电公司 | Arrester on -line monitor |
| CN206178063U (en) * | 2016-11-10 | 2017-05-17 | 合肥科鼎电气有限公司 | Real -time on -line monitoring appearance of arrester based on nearly remote wireless transmission technique |
-
2017
- 2017-11-09 CN CN201711096086.2A patent/CN107884618A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120239321A1 (en) * | 2009-12-08 | 2012-09-20 | Raychem International (Irish Branch) | Surge arrestor condition monitoring |
| CN103513092A (en) * | 2013-09-17 | 2014-01-15 | 国家电网公司 | Zinc oxide arrester on-line monitoring system based on wireless transmission |
| CN205958658U (en) * | 2016-05-18 | 2017-02-15 | 国网新疆电力公司巴州供电公司 | Arrester on -line monitor |
| CN206178063U (en) * | 2016-11-10 | 2017-05-17 | 合肥科鼎电气有限公司 | Real -time on -line monitoring appearance of arrester based on nearly remote wireless transmission technique |
Non-Patent Citations (3)
| Title |
|---|
| 李娟 主编: "《传感器与检测技术》", 31 January 2009 * |
| 程月平 等: "氧化锌避雷器无线在线监测系统的研究", 《制造业自动化》 * |
| 高赫: "基于无线网络的氧化锌避雷器在线监测系统", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108920672A (en) * | 2018-07-09 | 2018-11-30 | 安徽诚意电气科技有限公司 | A kind of lightning data management system based on lightning rod |
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Application publication date: 20180406 |
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| RJ01 | Rejection of invention patent application after publication |