CN208432682U - A kind of fore device and system of transmission line malfunction diagnosis - Google Patents
A kind of fore device and system of transmission line malfunction diagnosis Download PDFInfo
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- CN208432682U CN208432682U CN201721805099.8U CN201721805099U CN208432682U CN 208432682 U CN208432682 U CN 208432682U CN 201721805099 U CN201721805099 U CN 201721805099U CN 208432682 U CN208432682 U CN 208432682U
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Abstract
The utility model discloses a kind of fore devices of transmission line malfunction diagnosis, connect with system background signal, comprising: travelling wave current acquisition module, for acquiring travelling wave current, travelling wave current acquisition module is high frequency Rogowski coil；Power current acquisition module, for acquiring power current；Main control unit, main control unit includes data processing module, data processing module is for being analyzed and processed collected current information, and the data handled well are transmitted to system background by main control unit, and the invention also discloses a kind of transmission line malfunction diagnostic systems.The utility model is by being provided with the travelling wave current acquisition module of high frequency Rogowski coil, it is small with its time delay error, the good feature of waveform reduction degree, the waveform of collected travelling wave current signal can preferably be restored, for processed analysis data, system background can accurately determine nature of trouble.
Description
Technical field
The utility model relates to the front ends that transmission line long-distance diagnostic field more particularly to a kind of transmission line malfunction diagnose
Apparatus and system.
Background technique
Currently, with the expansion of electric system scale, transmission line of electricity passes through complicated landform and weather inclement condition region
Situation is also increasing, and in such cases, the lookup of fault point seems extremely difficult after transmission line of electricity trip accident occurs.
According to statistics, in transmission line malfunction, the transient faults such as lightning stroke account for 90%~95%, the part transmission of electricity that this kind of failure will cause
Line insulation damage, but its trace of usually not significantly burning, not only can bring difficulty to the investigation of fault point in this way, but also
The hidden danger of subsequent fault will be become.For this purpose, it is fixed that fault point traveling wave would generally be arranged in the both ends substation of transmission line of electricity
Position system, to detect the line fault of transmission line of electricity.
But existing fault point travelling wave positioning system, acquisition travelling wave current use traditional current transformer scheme,
Its traveling wave information got has that decaying is big, distortion is big, for fault category identification there are higher False Rate,
Also, its positioning accuracy is easy by factors such as travelling wave signal decaying, distortion, arc sag, interference signal, synchronousness differences
It influences.
Utility model content
For overcome the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of transmission line malfunction and examines
Disconnected fore device can preferably restore the waveform of travelling wave signal, convenient for accurately judging transmission line malfunction type.
The two of the purpose of this utility model are to provide a kind of transmission line malfunction diagnostic system, can preferably restore row
The waveform of wave signal, convenient for accurately judging transmission line malfunction type.
One of the purpose of this utility model adopts the following technical scheme that realization:
A kind of fore device of transmission line malfunction diagnosis, connect, comprising: travelling wave current acquires mould with system background signal
Block, for acquiring travelling wave current, the travelling wave current acquisition module is high frequency Rogowski coil；Power current acquisition module, is used for
Acquire power current；Main control unit, the main control unit include data processing module, and the data processing module is used for acquisition
To travelling wave current and power frequency be analyzed and processed, the data handled well are transmitted to the system background by the main control unit.
Further, the power current acquisition module is power frequency Rogowski coil.
Further, the main control unit include Beidou positioning and time service module, for transmission line malfunction information into
Row time synchronization and positioning.
Further, the main control unit includes memory module and watchdog module, and the memory module is gone through for storing
History data, primary control program, the setting information such as parameter, the watchdog module for realizing device self diagnosis.
Further, the main control unit includes communication module, and the main control unit passes through the data handled well described
Communication module is transmitted to system background.
Further, the communication module is GPRS module.
Further, the fore device of the transmission line malfunction diagnostic system further includes power supply unit.
Further, said supply unit is made of main power source module, energy-storage module and power management module.
The two of the purpose of this utility model adopt the following technical scheme that realization:
A kind of transmission line malfunction diagnostic system, including fore device and system background, the system background is for receiving
The processed analysis data that the fore device is sent, judge fault type, failure by processed analysis data
Time of origin and place；The fore device is connect with the system background signal, and the fore device is the utility model mesh
One of described in a kind of transmission line malfunction diagnostic system fore device.
Further, the fore device is multiple, and the form being arranged in a distributed manner is set on transmission line of electricity.
Compared with prior art, the utility model has the beneficial effects that:
The fore device and system of a kind of transmission line malfunction diagnosis of the utility model, by being provided with high frequency Roche
The travelling wave current acquisition module of coil, small with its time delay error, the good feature of waveform reduction degree can be restored preferably and be collected
Travelling wave current signal waveform, collected current information is analyzed and processed convenient for fore device, for processed good
Analysis data, system background can accurately determine nature of trouble.
Detailed description of the invention
Fig. 1 is a kind of fore device structural schematic diagram of transmission line malfunction diagnosis of the utility model；
Fig. 2 is a kind of transmission line malfunction diagnostic system structural schematic diagram of the utility model.
In figure: 1, fore device；11, travelling wave current acquisition module；12, power current acquisition module；13, main control unit；
131, data processing module；132, Beidou positioning and time service module；133, memory module；134, watchdog module；135, it communicates
Module；14, power supply unit；141, main power source module；142, energy-storage module；143, power management module；2, system background.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Embodiment one:
A kind of fore device 1 of transmission line malfunction diagnosis as shown in Figs. 1-2, connect with 2 signal of system background, wraps
Include: travelling wave current acquisition module 11, for acquiring travelling wave current, which is high frequency Rogowski coil, i.e.,
High Frequency Current Sensor can preferably restore input current；Power current acquisition module 12, for acquiring power current；It is main
Unit 13 is controlled, which includes data processing module 131, which has processor, for adopting
The current information collected is analyzed and processed, which is transmitted to system background 2 for the data handled well.Wherein, row
Wave current acquisition module 11 carries out travelling wave current acquisition using high frequency Rogowski coil, compared to traditional current transformer scheme,
Small with time delay error, the good feature of waveform reduction degree can preferably restore the waveform of travelling wave current.Power current acquisition
Module 12 is power frequency Rogowski coil, i.e. power current sensor.Specifically, which includes Beidou positioning and time service
Module 132, for carrying out time synchronization and positioning, memory module 133 and watchdog module 134 to transmission line malfunction information,
The memory module 133 for store historical data, primary control program, the setting information such as parameter, the watchdog module 134 for realizing
Fore device 1 itself overall operation situation can be monitored in real time in the self diagnosis of fore device 1, and with unique reset weight
Initiated Mechanism (periodically restart, remote reboot, abnormal restarting etc.) guarantees that equipment will not crash in the process of running.The main control unit
13 further include communication module 135, it should be noted that communication module 135 in this implementation can for WiFi module, gsm module,
The communication modules such as 3G wireless communication module, 4G wireless communication module, do not repeat one by one here, which will handle well
Data are transmitted to system background 2 by the communication module 135, and specifically, which is GPRS module.In addition, this is defeated
The fore device 1 of line fault diagnostic system further includes power supply unit 14, and the power supply unit 14 is by main power source module 141, storage
It can module 142 and the composition of power management module 143.Main power source module 141 flexibly can select conducting wire induction to take according to the actual situation
Electricity, solar energy take electricity etc., and lithium battery, super capacitor etc. can be selected in energy-storage module 142 as needed, and power management module 143 has
Standby perfect management of charging and discharging function, carries buck voltage regulator circuit, can provide stable DC source to main control unit 13,
Also, power management module 143 carries UPS function, when main power source module 141 has electricity, can give out-put supply after voltage regulator circuit
Main control unit 13 is powered, while being charged to energy-storage module 142, and when main power source power loss, module can automatically switch to accumulation power supply
Power supply, out-put supply is powered to main control unit 13 Deng after voltage regulator circuit.Power management module 143, which has perfect charge and discharge, to be protected
The functions such as protective function, including but not limited to under-voltage protection, overvoltage protection, overcurrent protection.In charge and discharge, power management module
143 can monitor 141 voltage and current of main power source module, 142 voltage and current of energy-storage module etc. automatically realizes that the charge and discharge to power supply are protected
Shield.Fore device 1 in the present embodiment is directly installed on conducting wire, firstly, utilizing travelling wave current acquisition module 11 and power frequency electric
Stream acquisition module 12 is acquired travelling wave current, power current, is accurately positioned in conjunction with Beidou positioning and time service module 132 and same
The time is walked, the transient state travelling wave current information and power current information of failure is analyzed, fault section and fault point can be accurately positioned, and
Accurate Judging fault property.When an error occurs, travelling wave current acquisition module 11 and power current acquisition module 12 can be same
Time gets fault transient travelling wave electric current and power current.Collected current information is sent at the data of main control unit 13
Reason module 131 be analyzed and processed, analyze handle well data combination Beidou positioning and time service module 132 acquisition electric current when
Between information, be sent to system background 2 via GPRS module together.System background 2 utilizes travelling wave ranging according to collected information
Principle, can calculate the distance of failure generation, and then judge the section that failure occurs, then further according to travelling wave current signal, work
Frequency current signal and temporal information, by analyzing the wave character of its wave rear length of time and fault traveling wave electric current, due to row
Wave current acquisition module 11 carries out the acquisition of travelling wave current using high frequency Rogowski coil, can be very good reduction travelling wave current letter
Number, the accurate differentiation to lightning stroke and non-lightning fault, shielding and counterattack nature of trouble can be realized with this.Transmission line malfunction class
Type mainly includes thunderbolt, counterattack, screen of trees, mountain fire, icing, object short etc., such as by the wave character to current signal
The analysis of the parameters such as wave rear time, flashover situation, main wave situation, wave head, wave rear and traveling wave amplitude, can judge power transmission line
The type of road failure.
It is small with its time delay error by being provided with the travelling wave current acquisition module 11 of high frequency Rogowski coil, waveform reduction
The feature spent can preferably restore the waveform of collected travelling wave current signal, convenient for fore device 1 to collected electricity
Stream information is analyzed and processed, and for processed analysis data, system background 2 can accurately determine fault
Matter.
Embodiment two:
Embodiment two provides a kind of transmission line malfunction diagnostic system, as shown in Figure 1, including fore device 1 and system
From the background 2, which is used to receive the processed analysis data of the fore device 1 transmission, passes through processed point
Analysis data judge fault type, time of failure and place；The fore device 1 is connect with 2 signal of system background, the front end
Device 1 is a kind of fore device of transmission line malfunction diagnostic system described in embodiment one.Specifically, which is
Multiple, the form being arranged in a distributed manner is set on transmission line of electricity.Fore device 1 in the present embodiment takes distributed deployment side
Formula is installed every a distance, transmission line of electricity can be resolved into several short-range sections, on the transmission line according to first determining
Fault section, then reliability and accuracy that the method that traveling wave positions in section improves positioning are carried out, reduce arc sag, velocity of wave, wave
The influence of shape decaying and interference signal to positioning accuracy, realizes high accuracy positioning.Solves the transregional management section of route point simultaneously
Boundary's point, due to the error of judgement, it is difficult to the problem of defining affiliated O&M tissue.
Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to
In the utility model range claimed.
Claims (10)
1. a kind of fore device of transmission line malfunction diagnosis, connect with system background signal characterized by comprising
Travelling wave current acquisition module, for acquiring travelling wave current, the travelling wave current acquisition module is high frequency Rogowski coil；
Power current acquisition module, for acquiring power current；
Main control unit, the main control unit include data processing module, and the data processing module is used for collected traveling wave
Electric current and power current are analyzed and processed, and the data handled well are transmitted to the system background by the main control unit.
2. a kind of fore device of transmission line malfunction diagnosis as described in claim 1, it is characterised in that: the power current
Acquisition module is power frequency Rogowski coil.
3. a kind of fore device of transmission line malfunction diagnosis as described in claim 1, it is characterised in that: the main control unit
Including Beidou positioning and time service module, for carrying out time synchronization and positioning to transmission line malfunction information.
4. a kind of fore device of transmission line malfunction diagnosis as described in claim 1, feature exist: the main control unit packet
Memory module and watchdog module are included, the memory module is for store historical data, primary control program, setting parameter information, institute
Watchdog module is stated for realizing the self diagnosis of device.
5. a kind of fore device of transmission line malfunction diagnosis as described in claim 1, it is characterised in that: the main control unit
Including communication module, the data handled well are transmitted to system background by the communication module by the main control unit.
6. a kind of fore device of transmission line malfunction diagnosis as claimed in claim 5, it is characterised in that: the communication module
For GPRS module.
7. a kind of fore device of transmission line malfunction diagnosis as described in claim 1, it is characterised in that: the transmission line of electricity
The fore device of fault diagnosis system further includes power supply unit.
8. a kind of fore device of transmission line malfunction diagnosis as claimed in claim 7, it is characterised in that: said supply unit
It is made of main power source module, energy-storage module and power management module.
9. a kind of transmission line malfunction diagnostic system, it is characterised in that: including fore device and system background, the system background
The processed analysis data sent for receiving the fore device, judge failure classes by processed analysis data
Type, time of failure and place；The fore device is connect with the system background signal, and the fore device is wanted for right
Seek a kind of fore device of transmission line malfunction diagnosis described in 1-8 any one.
10. a kind of transmission line malfunction diagnostic system as claimed in claim 9, it is characterised in that: the fore device is more
A, the form being arranged in a distributed manner is set on transmission line of electricity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721805099.8U CN208432682U (en) | 2017-12-21 | 2017-12-21 | A kind of fore device and system of transmission line malfunction diagnosis |
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| CN201721805099.8U CN208432682U (en) | 2017-12-21 | 2017-12-21 | A kind of fore device and system of transmission line malfunction diagnosis |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633380A (en) * | 2019-02-19 | 2019-04-16 | 珠海妙微科技有限公司 | A kind of transmission open acess system |
| CN111537834A (en) * | 2020-04-24 | 2020-08-14 | 广州长川科技有限公司 | Cable fault positioning online monitoring device and method |
| CN111900799A (en) * | 2020-06-29 | 2020-11-06 | 武汉钢铁有限公司 | Power transmission line monitoring system of iron and steel combination enterprise |
| CN112379211A (en) * | 2020-09-24 | 2021-02-19 | 国网吉林省电力有限公司电力科学研究院 | Detection method of power transmission line fault area positioning device |
| CN112763860A (en) * | 2020-12-11 | 2021-05-07 | 贵州电网有限责任公司 | Power transmission line fault and abnormal discharge monitoring system and method |
| CN114545162A (en) * | 2022-02-15 | 2022-05-27 | 国网湖南省电力有限公司 | Distributed transmission line insulation performance online monitoring method |
| CN115774166A (en) * | 2022-11-18 | 2023-03-10 | 四川汇源光通信有限公司 | Line fault diagnosis positioning system and method based on distributed fault and unmanned aerial vehicle |
-
2017
- 2017-12-21 CN CN201721805099.8U patent/CN208432682U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633380A (en) * | 2019-02-19 | 2019-04-16 | 珠海妙微科技有限公司 | A kind of transmission open acess system |
| CN111537834A (en) * | 2020-04-24 | 2020-08-14 | 广州长川科技有限公司 | Cable fault positioning online monitoring device and method |
| CN111900799A (en) * | 2020-06-29 | 2020-11-06 | 武汉钢铁有限公司 | Power transmission line monitoring system of iron and steel combination enterprise |
| CN112379211A (en) * | 2020-09-24 | 2021-02-19 | 国网吉林省电力有限公司电力科学研究院 | Detection method of power transmission line fault area positioning device |
| CN112763860A (en) * | 2020-12-11 | 2021-05-07 | 贵州电网有限责任公司 | Power transmission line fault and abnormal discharge monitoring system and method |
| CN114545162A (en) * | 2022-02-15 | 2022-05-27 | 国网湖南省电力有限公司 | Distributed transmission line insulation performance online monitoring method |
| CN115774166A (en) * | 2022-11-18 | 2023-03-10 | 四川汇源光通信有限公司 | Line fault diagnosis positioning system and method based on distributed fault and unmanned aerial vehicle |
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