CN208013350U - A kind of integrated traveling wave hybrid ranging device - Google Patents
A kind of integrated traveling wave hybrid ranging device Download PDFInfo
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- CN208013350U CN208013350U CN201820604134.8U CN201820604134U CN208013350U CN 208013350 U CN208013350 U CN 208013350U CN 201820604134 U CN201820604134 U CN 201820604134U CN 208013350 U CN208013350 U CN 208013350U
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Abstract
The utility model discloses a kind of integrated traveling wave hybrid ranging devices,Whole device is using embedded,Exempt from fan,Lead uses internal bus form between high-performance and the design of the complete machine integration body of low energy consumption and module,Utility model device includes mainly power module,Data acquisition module,Data process&analysis module,Back-stage management and analysis module and clock synchronization module,Data acquisition module is directly accessed secondary side PT and CT signal and carries out real-time data acquisition,After through data processing module carry out data calculating,Failure wave-recording judges and the operations such as fault data unloading,After failure occurs,Back-stage management carries out fault localization with analysis module to fault recorder data,Waveform is shown and the operations such as analysis and device networking,Clock synchronization module is then responsible for whole device and provides standard clock source,Power module then provides level conversion function for whole device.
Description
Technical field
The utility model is related to power module transmission line failure ranging fields, in particular to a kind of integration
Traveling wave hybrid ranging device.
Background technology
The fault distance-finding method of the electrical power system transmission circuit of existing mainstream includes mainly two kinds of impedance method and traveling wave method, resistance
Anti- method is easy to be sampled essence by transition resistance, PT, CT etc. in practical applications usually as the additional function of fault wave recording device
The influence of degree, range accuracy is difficult to meet field application, and its design is generally using separate structures shapes such as supervisor, pick-up casees
Formula, as shown in Fig. 1；Fault Location With Traveling Wave usually realizes that range accuracy is higher by conventional traveling wave ranging device, design
Generally using the seperated structure composition such as pick-up case, GPS clock synchronizations unit, industrial personal computer, display, as shown in Fig. 2.Both the above is surveyed
Realization away from method is under the jurisdiction of two kinds of independent secondary devices respectively, and two kinds of equipment are a variety of absolute construction modules
Combination, in use, the two needs each self installation in actual field substation or power plant, cost of investment height, operation and maintenance are not
It is convenient；In addition, also have the mode that impedance method and traveling wave method are integrated together by protective device, but since protective device is monitored
Number of lines limit, it is difficult on a large scale in the substation of existing maturation widely apply and implement, and due to its recording length with
The limitation of sampling precision is difficult to comprehensively to record very much process before and after transient fault in terms of the Temporal Data record, it is difficult to realize
To the local analysis of fault data.
Utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of integrated traveling wave hybrid ranging device,
It can be realized completes the acquisition of power frequency and traveling wave data, calculating, ranging to a plurality of circuit in standing and just on monomer unit
Ground is shown and the functions such as analysis, that is, passes through internal bus and realize collection power module, data acquisition, data process&analysis, backstage
Management and a series of functions including analysis, clock synchronization module and hybrid ranging algorithm.
To achieve the goals above, the technical solution of the utility model is as follows：
A kind of integrated traveling wave hybrid ranging device, including power module, data acquisition module, data processing module,
Data analysis module and clock synchronization module, the power module are powered by internal bus for device, and the data acquisition module is logical
Internal bus is crossed by the data transmission acquired to data processing module, the data processing module carries out original sampling data
Failure wave-recording judges, and the recorder data generated is dumped to data analysis module, the clock synchronization module by internal bus
It is connected to complete internal timing function with each module by internal bus.
Further, the power module is connected with external power supply, passes through the external communication voltage signal progress to access
Level conversion is powered for device.
Further, the data acquisition module includes conventional sensors and traveling wave sensor, and the conventional sensors are logical
It is connected with FPGA module after crossing low-pass filtering and A/D conversion modules, the traveling wave sensor is turned by traveling wave filtering and high-speed a/d
It is connected with FPGA module after mold changing block, the FPGA module is connected with CPU.
The conventional sensors acquisition channel and traveling wave sensor acquisition channel are two independent hardware corridors.
Further, the data acquisition module is directly accessed PT the and CT signals that secondary side comes, and acquires signal packet
Include power-frequency voltage, power current and high-frequency traveling wave current.
Further, the data processing module includes sequentially connected data reception module, data computation module, failure
Recording judgment module and recorder data unloading module, the data reception module is for receiving what data acquisition module acquired in real time
Voltage and current, the data computation module have for power-frequency voltage acquired to data acquisition module and power current data
Valid value is calculated in real time, and the failure wave-recording judgment module carries out failure wave-recording according to the result of calculation of data computation module and sentences
It is disconnected, and fault recorder data is transferred to by data analysis module by recorder data unloading module.
Further, the data analysis module includes hybrid ranging Algorithm Analysis module and memory module, the synthesis
Location algorithm analysis module is used to carry out hybrid ranging Algorithm Analysis to fault recorder data, completes the event to fault recorder data
Hinder route selection and fault localization function, and the archive to failure wave-recording file is completed by memory module.
Further, the data analysis module is also connected with display, has been used for paired data acquisition module acquisition number
According to real-time display.
Further, the data analysis module is also connected with printer.
Further, the data analysis module passes through standard IEC -61850 and IEC60870-5-103 stipulations and main website
Communication.
Further, it is equipped with signal receiving module in the clock synchronization module, is entire for receiving external perimysium reference clock source
Device provides unified clock source benchmark.
Further, the external perimysium reference clock source includes GPS signal, Big Dipper signal, light B code signals and electricity B code signals.
Compared with prior art, the utility model has the beneficial effects that：
1) module design of the utility model is using collection power module, data acquisition, data process&analysis, back-stage management
With analysis and clock synchronization module in the integrated body design scheme of one, realize on monomer unit completion to power-frequency voltage,
The acquisition of power current and high-frequency current traveling wave data, processing, hybrid ranging Algorithm Analysis, fault data is shown and device connection
The relevant operations such as net；
2) interconnection uses internal bus form between each module of the utility model, greatly reduces failure rate, improves
The operational reliability of module；
3) the utility model part of data acquisition device is directly accessed secondary side voltage and current signals, without additional special
Signal Coupling device；
4) utility model device using it is embedded, exempt from fan, high-performance, low energy consumption high-performance processor, Er Feigong
Industry control computer has fully ensured that device has powerful data throughput and processing capacity；
5) utility model device separate unit maximum can monitor 16 outlets (ABC three-phases), 4 busbares/line voltage (ABC
Three-phase) or 10 outlets (ABC three-phases) and 8 busbar/line voltages (ABC three-phases)；
6) utility model device single recording length fundamental wave realizes pair up to 1000ms, high frequency traveling wave up to 160ms
Comprehensive record of Fault transient data.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is conventional fault wave recording device structure chart；
Fig. 2 is conventional traveling wave ranging device structure chart；
Fig. 3 is the utility model integration traveling wave hybrid ranging structure drawing of device；
Fig. 4 is the utility model integration traveling wave hybrid ranging device stereogram；
Fig. 5 is the utility model integration traveling wave hybrid ranging device rear panel view；
Fig. 6 is the utility model integration traveling wave hybrid ranging device part of data acquisition schematic diagram；
Fig. 7 is the utility model integration traveling wave hybrid ranging apparatus module internal bus connection diagram.
Specific implementation mode
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
In the present invention, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as " side ", "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate chatting
The relative for stating each component of the utility model or component structure relationship and determination, not refer in particular in the utility model either component or
Element should not be understood as limiting the present invention.
In the utility model, term such as " affixed ", " connected ", " connection " shall be understood in a broad sense, and expression can be fixed
Connection, can also be to be integrally connected or be detachably connected；It can be directly connected, the indirect phase of intermediary can also be passed through
Even.Related scientific research for this field or technical staff can determine above-mentioned term in the present invention as the case may be
Concrete meaning, should not be understood as limiting the present invention.
As background technology is introduced, exist in the prior art that impedance method range accuracy is unreliable, Fault Location With Traveling Wave holds
Easy error starting and impedance method and Fault Location With Traveling Wave are respectively two kinds of independent secondary devices, also has protective device by two kinds of ranging sides
Method combines together, but is limited to the limitation of its monitored number of lines and itself recording length, upgrades, is transformed, increases this
The relevant economic cost of class device is higher, it is difficult to the problem of being applied in the substation of existing maturation on a large scale, in order to
Technical problem as above is solved, present applicant proposes a kind of integrated traveling wave hybrid ranging devices, can realize in monomer
The hybrid ranging algorithm being combined to impedance method and traveling wave method is realized on device, and the event to a plurality of circuit is realized on monomer unit
Hinder ranging monitoring, the recording function to the long period before and after fault transient process is realized on monomer unit.
As shown in fig. 7, a kind of integrated traveling wave hybrid ranging device, including power module, data acquisition module, data
Processing module, data analysis module and clock synchronization module, the power module are powered by internal bus for device, and the data are adopted
Collect module by internal bus by the data transmission acquired to data processing module, the data processing module is to crude sampling
Data carry out failure wave-recording judgement, and the recorder data generated is dumped to data analysis module by internal bus, described
Clock synchronization module is connected by internal bus with each module to complete internal timing function.
In specific implementation, the power module is connected with external power supply, by the external communication voltage signal to access into
Line level is converted to entire range unit power supply.
As shown in fig. 6, in specific implementation, the data acquisition module includes conventional sensors and traveling wave sensor, described
Conventional sensors by being connected with FPGA module after low-pass filtering and A/D conversion modules, by traveling wave filtered by the traveling wave sensor
It is connected with FPGA module after wave and high-speed a/d conversion module, the FPGA module is connected with CPU, the conventional sensors acquisition
Channel and traveling wave sensor acquisition channel are two independent hardware corridors.
The conventional sensors are for acquiring fundamental voltage and fundamental current.
As shown in figure 3, the data acquisition module is directly accessed PT the and CT signals that secondary side comes, without dedicated letter
Number Coupling device, acquisition signal includes power-frequency voltage, power current and high-frequency traveling wave current.
In specific implementation, the data processing module includes sequentially connected data reception module, data computation module, event
Hinder recording judgment module and recorder data unloading module, the data reception module acquires in real time for receiving data acquisition module
Voltage and current, the data computation module is for power-frequency voltage acquired to data acquisition module and power current data
Virtual value is calculated in real time, and the failure wave-recording judgment module carries out failure wave-recording according to the result of calculation of data computation module
Judge, and fault recorder data is transferred to by data analysis module by recorder data unloading module.
In specific implementation, the travelling wave current only needs to divide it without needing quantification as fundamental wave
Singular point position is found out in analysis, then goes the ranging for carrying out traveling wave method to analyze using the singular point position found.
The data analysis module is used to carry out hybrid ranging Algorithm Analysis to fault recorder data, completes to failure wave-recording
The failure line selection and fault localization function of data.
In specific implementation, the data analysis module is developed based on embedded Linux modular platform, including hybrid ranging is calculated
Method analysis module and memory module, the hybrid ranging Algorithm Analysis module carry out comprehensive survey by CPU to fault recorder data
Away from Algorithm Analysis, failure line selection and fault localization function to fault recorder data are completed, and a pair event is completed by memory module
Hinder the archive of recorded wave file.The hybrid ranging algorithm is impedance method and the traveling wave hybrid ranging algorithm that traveling wave method is combined, and is somebody's turn to do
Method is not the simple choice of impedance method and traveling wave method result, and be built upon device to power frequency and high frequency traveling wave data synchronize adopt
Through result given after logic judgment comprehensive analysis on the basis of sample.
The fault recorder data that the data analysis module is generated is standard COMTRADE formatted files, the standard
COMTRADE formatted files include power frequency recording (voltage, electric current) and high frequency traveling wave (electric current) file.
In specific implementation, the back-stage management is also connected with display with analysis module, has been used for paired data acquisition mould
The real-time display of block gathered data.
The data analysis module is also connected with printer.
The data analysis module also passes through standard IEC -61850 and IEC60870-5-103 stipulations and master station communication.
In specific implementation, it is equipped with signal receiving module in the clock synchronization module, is whole for receiving external perimysium reference clock source
A device provides unified clock source benchmark.The external perimysium reference clock source include GPS signal, Big Dipper signal, light B code signals and
Electric B code signals
As shown in Figure 4 and Figure 5, the utility model is more in real time using full-embedded type hardware configuration platform and embedded Linux
The software and hardware architecture of task operating modular platform designs, collection power module, data acquisition, data processing, data analysis and clock synchronization
Module is in the integrated body structural design scheme of one.
The integration body structure design is not only that each module is integrated into a monomer cabinet, and is built upon
Module on the basis of module entirety design scheme of hardware and software is integrated.
The separate unit integrated apparatus can monitor a plurality of circuit, be not simply overlapped hardware circuit, but build
Found the scheme after data acquisition, data calculating, data storage, mechanical structure etc. are considered as a whole.
The embedded hardware structure platform is embedded high-performance CPU platforms, and unconventional industrial control computer.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly
The limitation of type protection domain, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel need not make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (10)
1. a kind of integrated traveling wave hybrid ranging device, it is characterised in that：Including power module, data acquisition module, data
Processing module, data analysis module and clock synchronization module, the power module are powered by internal bus for device, and the data are adopted
Collect module by internal bus by the data transmission acquired to data processing module, the data processing module passes through internal total
The recorder data generated is dumped to data analysis module and is connected by line, and the clock synchronization module passes through internal bus and each module phase
Even to complete internal timing function.
2. a kind of integrated traveling wave hybrid ranging device as described in claim 1, which is characterized in that the power module with
External power supply is connected, and carry out level conversion by the external communication voltage signal to access powers for whole device.
3. a kind of integrated traveling wave hybrid ranging device as described in claim 1, which is characterized in that the data acquisition module
Block includes conventional sensors and traveling wave sensor, the conventional sensors by after low-pass filtering and A/D conversion modules with FPGA
Module is connected, and the traveling wave sensor after traveling wave filtering and high-speed a/d conversion module with FPGA module by being connected, the FPGA
Module is connected with CPU.
4. a kind of integrated traveling wave hybrid ranging device as described in claim 1, which is characterized in that the data acquisition module
Block is directly accessed PT the and CT signals that secondary side comes, and acquisition signal includes power-frequency voltage, power current and high frequency traveling wave electricity
Stream.
5. a kind of integrated traveling wave hybrid ranging device as described in claim 1, which is characterized in that the data processing mould
Block includes sequentially connected data reception module, data computation module, failure wave-recording judgment module and recorder data unloading module.
6. a kind of integrated traveling wave hybrid ranging device as described in claim 1, which is characterized in that the data analysis mould
Block includes hybrid ranging Algorithm Analysis module and memory module, and the hybrid ranging Algorithm Analysis module is used for fault recorder
According to hybrid ranging Algorithm Analysis, complete to the failure line selection and fault localization function of fault recorder data, and pass through and store mould
Block completes the archive to failure wave-recording file.
7. a kind of integrated traveling wave hybrid ranging device as described in claim 1, which is characterized in that the data analysis mould
Block is also connected with display, has been used for the real-time display of paired data acquisition module gathered data.
8. a kind of integrated traveling wave hybrid ranging device as described in claim 1, which is characterized in that the data analysis mould
Block passes through standard IEC -61850 and IEC60870-5-103 stipulations and master station communication.
9. a kind of integrated traveling wave hybrid ranging device as described in claim 1, which is characterized in that in the clock synchronization module
Equipped with signal receiving module, unified clock source benchmark is provided for whole device for receiving external perimysium reference clock source.
10. a kind of integrated traveling wave hybrid ranging device as claimed in claim 9, which is characterized in that the external perimysium reference
Clock source includes GPS signal, Big Dipper signal, light B code signals and electricity B code signals.
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| CN201820604134.8U CN208013350U (en) | 2018-04-25 | 2018-04-25 | A kind of integrated traveling wave hybrid ranging device |
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| CN201820604134.8U CN208013350U (en) | 2018-04-25 | 2018-04-25 | A kind of integrated traveling wave hybrid ranging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112486009A (en) * | 2020-11-20 | 2021-03-12 | 山东山大电力技术股份有限公司 | Time service signal abnormal waveform recording analyzer and method |
| CN112881841A (en) * | 2021-01-25 | 2021-06-01 | 云南电网有限责任公司昆明供电局 | Power failure wave recording data processing device and method |
-
2018
- 2018-04-25 CN CN201820604134.8U patent/CN208013350U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112486009A (en) * | 2020-11-20 | 2021-03-12 | 山东山大电力技术股份有限公司 | Time service signal abnormal waveform recording analyzer and method |
| CN112881841A (en) * | 2021-01-25 | 2021-06-01 | 云南电网有限责任公司昆明供电局 | Power failure wave recording data processing device and method |
| CN112881841B (en) * | 2021-01-25 | 2023-04-11 | 云南电网有限责任公司昆明供电局 | Power failure wave recording data processing device and method |
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Legal Events
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Du Tao Inventor after: Zhu Shaotu Inventor after: Xu Haifeng Inventor after: Guo Kai Inventor after: Liang Xiaowei Inventor before: Zhu Cheng Inventor before: Du Tao Inventor before: Zhu Shaotu Inventor before: Xu Haifeng Inventor before: Guo Kai Inventor before: Liang Xiaowei |
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| CB03 | Change of inventor or designer information |