CN108871449A - A kind of transmission line online monitoring system with electric field monitoring - Google Patents
A kind of transmission line online monitoring system with electric field monitoring Download PDFInfo
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- CN108871449A CN108871449A CN201810772056.7A CN201810772056A CN108871449A CN 108871449 A CN108871449 A CN 108871449A CN 201810772056 A CN201810772056 A CN 201810772056A CN 108871449 A CN108871449 A CN 108871449A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 99
- 230000005684 electric field Effects 0.000 title claims abstract description 72
- 238000012544 monitoring process Methods 0.000 title claims abstract description 46
- 230000005611 electricity Effects 0.000 claims abstract description 47
- 238000004891 communication Methods 0.000 claims abstract description 31
- 238000012806 monitoring device Methods 0.000 claims abstract description 16
- 230000001052 transient effect Effects 0.000 claims abstract description 8
- 230000001133 acceleration Effects 0.000 claims description 23
- 239000004020 conductor Substances 0.000 claims description 11
- 230000009466 transformation Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of transmission line online monitoring systems with electric field monitoring, including data monitoring device, data acquisition device, wireless communication apparatus, terminal handler, the data monitoring device is connected with data acquisition device, the data acquisition device is connected by the wireless communication apparatus with the terminal handler, the data acquisition device can convert digital quantity signal for the analog signals that data monitoring device monitors, and be transmitted to the terminal handler；The terminal handler can carry out accident early warning when Sudden Changing Rate occurs in the electric field strength digital quantity signal of real-time reception, if and/or transmission line of electricity break down when, the terminal handler can according to transient state digital quantity signal to transmission line of electricity carry out crash analysis., can be to avoid the deterioration of accident by the environmental factor etc. around system on-line monitoring, electric field strength of analysis transmission line of electricity and transmission tower, and for the repair based on condition of component work of transmission line of electricity provide necessary reference.
Description
Technical field
The present invention relates to power supply technique fields, monitor system on-line more particularly to a kind of transmission line of electricity with electric field monitoring
System.
Background technique
In high pressure and extra-high voltage direct-current engineering, bring is improved along with the benefit that voltage class improves, is outstanding
Electromagnetic environment problem.Audible noise, radio interference, corona loss, ion current density, total electric field strength etc. are high voltage direct current
Important parameter and the route design of transmission system have to consider the problems of.Total electric field is route and tower structure design
One of major control factors and DC transmission system operating status reflection.In HVDC transmission line design, construction
During operation, accurate measurement obtains the electric field value in space near transmission line of electricity, is to understand work transmission line limitation, prison
The effective means of survey Research Work of Power Transmission Line state, inspection DC power transmission line meet environmental requirements basic with dynamic operation requirement
Tool, and the important method of assessment DC transmission system electromagnetic environment, carry out near biological effect and building to further
Field strength characteristics are assessed significant.The space electric field around power equipment is monitored, can be further used for assessing power transmission line confession
Electricity condition, detection defects of insulator, measurement ice covering thickness etc., for the electromagnetic environment assessment of transmission line of electricity, on-line monitoring and event
There is huge application value in the fields such as barrier diagnosis, Lightning Warning.In addition, as China's direct current power system and electrician are manufacturing
Development, insulator, casing, GIS device development process in, equipment external insulation design, corona inhibit and pressure design be both needed to
Accurate equipment space combination field strength distribution nearby is obtained, has equally been expedited the emergence of to amplitude, high-precision, small size direct current field strength
The demand of test device.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of transmission line online monitoring system with electric field monitoring,
Purpose is to monitor transmission line of electricity and transmission tower on-line, main meteorology and the electric field number monitored around transmission tower
According to transient signal can be used for accident early warning, avoid the deterioration of accident, and provide for the repair based on condition of component work of transmission line of electricity
Necessary reference.
The present invention provides a kind of transmission line online monitoring system with electric field monitoring, using following technical scheme：One
Kind has the transmission line online monitoring system of electric field monitoring, including data monitoring device, data acquisition device, wireless telecommunications dress
It sets, terminal handler, the data monitoring device is connect with data acquisition device, and the data acquisition device passes through described wireless
Communication device is connected with the terminal handler,
The data monitoring device includes that electric-field sensor, microclimate sensor, angular-rate sensor and acceleration pass
Sensor, wherein
The electric-field sensor is used to monitor the electric field strength around conductor wire；
The microclimate sensor be used to monitor wind direction near transmission tower or transmission line of electricity, wind speed, temperature, humidity,
Pressure；
The angular-rate sensor is used to monitor the angular speed of transmission tower, and the acceleration transducer is for monitoring transmission of electricity
The acceleration of shaft tower；
The data acquisition device can be by electric field strength that data monitoring device monitors, wind direction, wind speed, temperature, wet
Degree, pressure, acceleration and angular speed analog signals be converted into digital quantity signal, and be transmitted to the terminal handler；
The terminal handler can carry out accident when Sudden Changing Rate occurs in the electric field strength digital quantity signal of real-time reception
Early warning, if and/or transmission line of electricity break down when, the terminal handler can be according to transient state digital quantity signal to transmission line of electricity
Carry out crash analysis.
It further, further include warning device, warning device includes buzzer and alarm lamp, the warning device and end
End processor is connected.
Further, further include energy supplying system, the energy supplying system include solar panels, battery, wind power plant with
And voltage transformation module, wherein
The solar panels are connect with battery, the solar panel, battery and wind power plant difference
It is connect with voltage transformation module.
Further, the voltage transformation module respectively with electric-field sensor, microclimate sensor, angular-rate sensor, plus
Velocity sensor, data acquisition device and wireless communication apparatus connection, to electric-field sensor, microclimate sensor, angle speed
It spends sensor, acceleration transducer, data acquisition device and wireless communication apparatus and electric energy is provided.
Further, the wireless communication apparatus be 3G, 4G, GPRS, Zigbee, any or group in Beidou communication module
It closes.
Power transmission line surface field on-line monitoring system provided by the invention is provided with multiple electric-field sensors on transmission line of electricity
Monitoring electric power generates the size of electric field in transmission process, after component threshold value of the electric field beyond terminal handler setting, issues event
Hinder early warning, at the scene after equipment damage, the electric field of the runing time of equipment, environmental factor and surrounding can also be analyzed,
The management level of transmission line safety economical operation is effectively raised, and provides necessity for the work of the repair based on condition of component of transmission line of electricity
Reference.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 is a kind of transmission line online monitoring system schematic diagram with electric field monitoring in the embodiment of the present invention；
Fig. 2 is a kind of transmission line online monitoring system structure arrangement signal with electric field monitoring in the embodiment of the present invention
Figure；
Fig. 3 is accident early warning flow diagram of the terminal handler by taking electric field strength as an example in the embodiment of the present invention；
Fig. 4 is terminal handler crash analysis flow diagram in the embodiment of the present invention.
In figure：1, transmission tower；2, transmission line of electricity；3, electric-field sensor；4, tower top；5, loading plate；6, lightning conducter.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention clearly and completely illustrated, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of transmission line online monitoring system with electric field monitoring is described in the embodiment of the present invention,
Including data monitoring device, data acquisition device, wireless communication apparatus, terminal handler, energy supplying system, warning device；Wherein
The data monitoring device is connect with data acquisition device by cable or optical fiber, and the data acquisition device passes through described wireless
Communication device is connected with the terminal handler, and the energy supplying system is separately connected data monitoring device, data acquisition device
And wireless communication apparatus, to provide electric energy, the end to data monitoring device, data acquisition device and wireless communication apparatus
End processor is also connected with warning device, to respond accident early warning.
In the present embodiment, the data monitoring device include electric-field sensor, microclimate sensor, angular-rate sensor with
And acceleration transducer, wherein
Electric-field sensor arranged for interval is at least arranged in the surface of transmission line of electricity, and on each conductor wire on transmission line of electricity
There is an electric-field sensor, for monitoring the electric field strength around each conductor wire；
The microclimate sensor is arranged on transmission tower, for monitoring wind direction, wind speed, temperature, humidity, pressure；It is excellent
Choosing, the microclimate sensor includes：Wind direction microclimate sensor, wind speed microclimate sensor, temperature microclimate sensor,
Humidity microclimate sensor and pressure microclimate sensor.
The angular-rate sensor and acceleration transducer are arranged on transmission tower, wherein
The angular-rate sensor is used to monitor the angular speed of transmission tower, and acceleration transducer is for monitoring transmission tower
Acceleration；
As shown in Fig. 2, the present invention is illustrated so that transmission line of electricity is alternating current circuit as an example, but it is not limited to exchange
Route, DC line etc. may be applicable to the present invention.
A kind of transmission line online monitoring system with electric field monitoring, including power transmission rod are provided in the embodiment of the present invention
Tower 1 and transmission line of electricity 2, being erected at arranged for interval on the transmission line of electricity between two transmission towers has 6 electric-field sensors 3, and every 3
A to be divided into one group, wherein one group is arranged on A, B, C three-phase conductor wire in two wire pole tower middle positions, another group is set
It sets on A, B, C three-phase conductor wire close to transmission tower.Preferably, if transmission line of electricity is DC line, electric field sensing
Device is arranged on positive and negative electrode conductor wire.
In the present embodiment, each electric-field sensor only measured, export where electric field information near conductor wire, it is each mutually conductive
Line is provided with electric-field sensor, thus realize the measurement of each phase conductor, the electric field information for each phase conductor of acquisition that can prepare,
By transmission line of electricity due to electric field strength variation break down for, due to failure be likely to occur in a conducting wire or two conducting wires or
Three conducting wires, thus different failures, the state of three-phase conducting wire is different, and on-line monitoring system can be according to each on transmission line of electricity
The electric field strength data of the monitoring of electric-field sensor accurately analyze abort situation or the fault condition being likely to occur etc., thus
Realize fault pre-alarming.
In the present embodiment, the tower top 4 of the transmission tower 1 is provided with acceleration transducer, for measuring wire pole tower
Acceleration of motion, angular-rate sensor are used to measure the angular velocity of satellite motion of wire pole tower, and for monitoring tower against the wind to, wind speed
Microclimate sensor；Wherein, terminal handler can lead to according to the digital information about acceleration and angular speed received
The displacement that can be calculated wire pole tower is crossed, so that analyzing the displacement of wire pole tower influences electric field strength.Transmission tower adds
If speed is excessive with angular speed, transmission tower can generate movement suddenly, and terminal handler then can be according to acceleration and angle speed
The data information of degree assesses the operating status of transmission line of electricity, also can shaft tower material to transmission tower, structure specification
Property carry out analysis be the later period maintenance or design, construction do corresponding guidance.
In the present embodiment, it is additionally provided with microclimate sensor on the loading plate 5 of the transmission tower 1, for monitoring transmission of electricity
Temperature, humidity and pressure of the shaft tower around tower bottom.Environment near power transmission tower is also to influence transmission line of electricity electric field change
One of factor, thus terminal handler can be according to the weather information received, by analyzing the ring that obtain around wire pole tower
On the other hand influence of the border factor to transmission line of electricity operating status is also to transmission of electricity on the one hand can accomplish accident early warning
Corresponding guidance is done in maintenance or design, the construction in route later period.
In the present embodiment, it is additionally provided with data acquisition device, wireless communication apparatus, energy supplying system on the loading plate 5,
In, data acquisition device is for acquiring electric-field sensor on transmission line of electricity, angular-rate sensor, acceleration transducer and micro- gas
The analog signals of image sensor monitoring；Wireless communication apparatus, for carrying out nothing between data acquisition device and terminal handler
Line communication, energy supplying system are used for electric-field sensor, angular-rate sensor, acceleration transducer and microclimate sensor, number
Electric energy is provided according to acquisition device, wireless communication apparatus.
In the present embodiment, electric-field sensor, angular-rate sensor, acceleration transducer and microclimate sensor lead to respectively
Cable or optical-fiber connection data acquisition device are crossed, data acquisition device is connected by the wireless communication apparatus with terminal handler
It connects.
In the present embodiment, the wireless communication apparatus is 3G, 4G, GPRS, Zigbee, any in Beidou communication module or
Combination, but it not is only limited to communication module described above, other communication modules may be applicable to the present invention.Preferably, nothing
Line communication device includes 3G, 4G, GPRS, Zigbee and Beidou communication module simultaneously, in traditional public network communication module, addition
Beidou communication module can effectively avoid public network communication failure from influencing the case where information is transmitted, improve on-line monitoring
The reliability of system.
In the present embodiment, the energy supplying system includes solar panels, battery, wind power plant and voltage modulus of conversion
Block, the solar panels, battery, wind power plant are connect with voltage transformation module respectively, the solar panels also with storage
Battery connection, to store electric energy.
In the present embodiment, it is provided with lightning conducter between two transmission towers, is occurred defeated for preventing lightning stroke transmission facility
The case where electric line overvoltage, occurs, and also further avoiding lightning stroke causes transmission line of electricity electric field strength excessive.
In the present embodiment, as shown in figure 3, describing by taking electric field strength as an example, terminal handler carries out event to transmission line of electricity
The process for hindering early warning, specifically includes following steps：
S1. terminal handler shows received digital signal using the waveform of data, Fourier frequency domain is analyzed, figure variable
It analyzes, reasonable threshold value is any or combined mode carries out processing analysis, judgement；
S2. the terminal handler judges whether electric field strength is more than given threshold, if being more than, thens follow the steps S3；If
It is less than, then continues to execute step S1；
S3. the buzzer of warning device issues sound, and alarm lamp flashes.
In the present embodiment, when the terminal handler carries out accident early warning to transmission line of electricity, also in relation with the position of transmission tower
Temperature, humidity, pressure, wind speed, wind direction etc. around shifting and transmission tower.
In the present embodiment, the terminal handler can also analyze transmission line of electricity electric field whether mutation amount, if electric field
There is Sudden Changing Rate in intensity, then accident early warning occurs.Preferably, the electric field strength Sudden Changing Rate can be for more than given threshold.
In the present embodiment, as shown in figure 4, when describing transmission line of electricity failure, the terminal handler crash analysis
Process, specifically include following steps：
S11. transmission line of electricity failure information, the terminal handler determines fault time point, and recalls the corresponding time
The transient state digital signal of point；
S12. the terminal handler is shown transient state digital signal using the waveform of data, Fourier frequency domain analysis, schemed
Any or combined mode in variable analysis, reasonable threshold value is analyzed；
S13. terminal handler calculates the electric field strength and transmission tower of each node on the conductor wire of transmission line of electricity
Displacement, the environmental factors such as wind direction, wind speed, temperature, humidity, pressure around transmission tower changing value；
S14. cause of accident is determined, and design, the construction of the maintenance and/or later period to transmission line of electricity are instructed.
In the present embodiment, the crash analysis further includes that terminal handler carries out the runing time before faulty equipment damage
Statistics.
In the present embodiment, the transient state digital quantity signal is the electric field strength being stored in terminal handler, wind direction, wind
Speed, temperature, humidity, pressure, acceleration and angular speed digital quantity signal historical record.
In the present embodiment, if transmission line of electricity scene occurs overvoltage and causes the harsh conditions such as apparatus insulated damage, it may be possible to
Transmission line of electricity failure causes electric field Sudden Changing Rate occur so as to cause equipment damage, it is also possible to which acutely fortune occurs for transmission tower
It is dynamic to cause electric field meteorologic factor wind speed, wind direction, temperature, humidity, pressure around Sudden Changing Rate or transmission line of electricity etc. occur to cause
Electric field there is Sudden Changing Rate, terminal handler needs that transient state digital quantity signal is utilized to carry out crash analysis.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For, the invention can have various changes and changes.All any modifications made within the spirit and principles of the present invention are equal
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of transmission line online monitoring system with electric field monitoring, including data monitoring device, data acquisition device, nothing
Line communication device, terminal handler, the data monitoring device are connected with data acquisition device, and the data acquisition device is logical
The wireless communication apparatus is crossed to be connected with the terminal handler, it is characterised in that：
The data monitoring device includes electric-field sensor, microclimate sensor, angular-rate sensor and acceleration transducer,
Wherein,
The electric-field sensor is used to monitor the electric field strength around conductor wire；
The microclimate sensor is used to monitor wind direction, wind speed, temperature, humidity, the pressure near transmission tower or transmission line of electricity；
The angular-rate sensor is used to monitor the angular speed of transmission tower, and the acceleration transducer is for monitoring transmission tower
Acceleration；
The data acquisition device can be by electric field strength that data monitoring device monitors, wind direction, wind speed, temperature, humidity, pressure
By force, the analog signals of acceleration and angular speed are converted into digital quantity signal, and are transmitted to the terminal handler；
The terminal handler can carry out accident early warning when Sudden Changing Rate occurs in the electric field strength digital quantity signal of real-time reception,
If and/or when transmission line of electricity failure, the terminal handler can be carried out transmission line of electricity according to transient state digital quantity signal
Crash analysis.
2. the transmission line online monitoring system according to claim 1 with electric field monitoring, it is characterised in that：Further include
Warning device, warning device include buzzer and alarm lamp, and the warning device is connected with terminal handler.
3. the transmission line online monitoring system according to claim 1 with electric field monitoring, it is characterised in that：Further include
Energy supplying system, the energy supplying system include solar panels, battery, wind power plant and voltage transformation module, wherein
The solar panels are connect with battery, the solar panel, battery and wind power plant respectively with electricity
Press conversion module connection.
4. the transmission line online monitoring system according to claim 3 with electric field monitoring, it is characterised in that：The electricity
Conversion module is pressed to fill respectively with electric-field sensor, microclimate sensor, angular-rate sensor, acceleration transducer, data acquisition
Set and wireless communication apparatus connection, with to electric-field sensor, microclimate sensor, angular-rate sensor, acceleration transducer,
Data acquisition device and wireless communication apparatus provide electric energy.
5. the transmission line online monitoring system according to claim 1 with electric field monitoring, it is characterised in that：The nothing
Line communication device is 3G, 4G, GPRS, Zigbee, any or combination in Beidou communication module.
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| CN112050860A (en) * | 2020-09-22 | 2020-12-08 | 国家电网有限公司 | Monitoring and analyzing method for overhead transmission line element |
| CN112067055A (en) * | 2020-09-15 | 2020-12-11 | 广东电网有限责任公司电力科学研究院 | Atmosphere online monitoring system and method for coastal power transmission line |
| CN112688434A (en) * | 2021-01-15 | 2021-04-20 | 广州穗能通能源科技有限责任公司 | Monitoring and early warning method and device for power transmission and distribution line, computer equipment and medium |
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