CN109239532A - A kind of line fault positioner based on the sampling of FPGA traveling wave - Google Patents
A kind of line fault positioner based on the sampling of FPGA traveling wave Download PDFInfo
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- CN109239532A CN109239532A CN201811313306.7A CN201811313306A CN109239532A CN 109239532 A CN109239532 A CN 109239532A CN 201811313306 A CN201811313306 A CN 201811313306A CN 109239532 A CN109239532 A CN 109239532A
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- Prior art keywords
- traveling wave
- fault
- sampling
- fpga
- monitoring terminal
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/11—Locating faults in cables, transmission lines, or networks using pulse reflection methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
The invention discloses a kind of line fault positioners based on the sampling of FPGA traveling wave, including background terminal and monitoring terminal, described based on FPGA traveling wave sampling circuit fault location and accident analysis, specific step is as follows: S1, installing malfunction monitoring terminal on the transmission line；S2, monitoring terminal to fault traveling wave, turn back and penetrate the high frequency sampling of the signals such as traveling wave and quick recording；S3, background terminal determine whether failure belongs to lightning fault by analyzing current temporary state traveling wave difference, if lightning fault then further determines that shielding or counterattack.The present invention fast and accurately analyzes fault type, fault point position by backstage daemon software system.The various ways such as web access, computer graphical are shown, short message is reminded also are supported simultaneously, enabling operation maintenance personnel to obtain the relevant informations high degree such as time of failure, type and position in time reduces because of directly or indirectly economic loss brought by failure power outage, is suitble to be widely popularized and use.
Description
Technical field
The present invention relates to line fault positioning field, specially a kind of line fault positioning based on the sampling of FPGA traveling wave
Device.
Background technique
With the fast development of the technologies such as computer, communication and sensor, domestic and international scientific research institution, enterprise are in failure
A large amount of research and practice have been carried out in terms of location technology, wherein transmission line malfunction indicator is only capable of automatic fault location area
Section can not effectively determine the exact position of fault point, and fault location accuracy depends on the packing density of fault detector, quasi-
Exactness and practicability are difficult to meet the requirement of Maintenance of Electric Transmission Line.And for the dress of substation's resistance algorithm and travelling wave ranging method
It sets and system, although position of failure point can be accurately positioned from principle, in practical application, weak travelling wave signal is effectively mentioned
Take, effective identification and positioning of effective identification of fault point back wave and opposite end bus reflected wave and thunder and lightning interference the problems such as it is very big
Degree affects its positioning accuracy and effect.Therefore, it is proposed that a kind of line fault positioning based on the sampling of FPGA traveling wave
Device.
Summary of the invention
The purpose of the present invention is to provide a kind of line fault positioners based on the sampling of FPGA traveling wave, solve background
The problem of proposed in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of line fault based on the sampling of FPGA traveling wave
Positioning device, including background terminal and monitoring terminal, the line fault positioning and failure point based on the sampling of FPGA traveling wave
Specific step is as follows for analysis:
S1, malfunction monitoring terminal is installed on the transmission line；
S2, monitoring terminal are to fault traveling wave, the turn back high frequency sampling for penetrating the signals such as traveling wave and quick recording；
S3, background terminal determine whether failure belongs to lightning fault by analyzing the difference of current temporary state traveling wave, if thunder
It hits failure and then further determines that shielding or counterattack；
S4, fault point is determined using the traveling wave data of each field monitoring terminal and the GPS of back wave or the Beidou time difference
Exact position.
As a kind of preferred embodiment of the invention, two adjacent groups monitor the distance between terminal and are not more than 30KM.
As a kind of preferred embodiment of the invention, the monitoring terminal includes failure analysis module and fault location mould
Block.
As a kind of preferred embodiment of the invention, the background terminal includes monitoring host computer and display module.
As a kind of preferred embodiment of the invention, the display module is LED display screen.
As a kind of preferred embodiment of the invention, the background terminal is connected with monitoring terminal through internet.
Compared with prior art, beneficial effects of the present invention are as follows: the line fault positioner of FPGA traveling wave sampling is logical
Cross the malfunction monitoring terminal being distributed on power transmission line route, realize fault traveling wave, turn back penetrate the signals such as traveling wave high frequency sampling and
Quick recording, and by backstage daemon software system, fast and accurately analyze fault type, fault point position.Simultaneously
It also supports the various ways such as web access, computer graphical are shown, short message is reminded, operation maintenance personnel is enabled to obtain event in time
Hinder the relevant informations such as time, type and position occurred, significantly reduce failure inspection work intensity and cost, shorten therefore
The barrier investigation time, while effectively improving power supply reliability, also high degree is reduced because failure power outage is brought
Directly or indirectly economic loss.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the operation figure of the line fault positioner sampled the present invention is based on FPGA traveling wave；
Fig. 2 is the double-end monitor method figure of the line fault positioner sampled the present invention is based on FPGA traveling wave；
Fig. 3 is the single-ended detection method figure of the line fault positioner sampled the present invention is based on FPGA traveling wave.
In figure:
1, background terminal；2, terminal is monitored；3, failure analysis module；4, fault location module.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment
A kind of line fault positioner based on the sampling of FPGA traveling wave, including background terminal and monitoring terminal, the base
In FPGA traveling wave sampling line fault positioning and accident analysis specific step is as follows:
S1, malfunction monitoring terminal is installed on the transmission line；
S2, monitoring terminal are to fault traveling wave, the turn back high frequency sampling for penetrating the signals such as traveling wave and quick recording；
S3, background terminal determine whether failure belongs to lightning fault by analyzing the difference of current temporary state traveling wave, if thunder
It hits failure and then further determines that shielding or counterattack；
S4, fault point is determined using the traveling wave data of each field monitoring terminal and the GPS of back wave or the Beidou time difference
Exact position.
(1) lightning fault and the judgement of non-lightning fault
Fault current is analyzed by failure analysis module, event of the transmission line of electricity by current through line when lightning fault
Barrier electric current mainly has two parts to be formed by stacking, and a part of lightning current is directly entered the electric current of route after shunting, and another part is
Thunder and lightning flows through shaft tower and enters the electric current that the back wave behind ground enters route, and the wave rear time of standard lightning current is 50 microseconds, due to
On the contrary, its peak atenuation is accelerated after the two superposition, the coda wave time shortens ground reflected wave polarity, therefore the failure electricity for the route that is struck by lightning
The traveling wave wave rear time of stream less than 50 microseconds, surveys generally within 40 microseconds, and transmission line of electricity is by pollution flashover, tree
The variation of its flashover process and alternating current is closely related after the non-lightning fault such as the flashovers such as the wooden flashover and external force destruction, and electric arc is in
Now extinguish and restrike, extend the variation shunk, its current temporary state traveling wave frequency is lower compared to lightning fault, this kind of fault current row
The wave wave rear time is longer, typically much deeper than 40 microseconds.
(2) fault location
By arranging that transmission line of electricity is divided into several sections (each by several field monitoring terminals on the transmission line
Section length≤30km), the fault data and signal in each section are monitored and recorded respectively.This scattered distribution in the line rather than
In the monitoring mode of both ends centralized layout of substation, consolidating for error not only is monitored on influences such as transmission line length, conducting wire sags
There is parameter to carry out discretization monitoring, simultaneously because the monitoring section shortening of each monitoring device can effectively reduce small traveling wave speed and become
Change and the factors such as decaying are on the pinpoint influence of failure, to greatly improve the precision (failure of transmission open acess
Position error≤300m).
1) double-end monitor method such as Fig. 2 based on GPS/ Beidou
X point distance m in fault point supervises detection device position distance: Xm=[(Tm-Tn) * V+L]/2
X point distance n in fault point supervises detection device position distance: Xn=[(Tn-Tm) * V+L]/2
2) single-ended detection method such as Fig. 3 based on GPS/ Beidou
X point distance m in fault point supervises detection device position distance: Xm=△ T*V/2=(Tm-Tn) * V/2
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of line fault positioner based on the sampling of FPGA traveling wave, including background terminal (1) and monitoring terminal (2),
Be characterized in that: specific step is as follows for the line fault positioning and accident analysis based on the sampling of FPGA traveling wave:
S1, malfunction monitoring terminal (2) are installed on the transmission line；
S2, monitoring terminal (2) are to fault traveling wave, the turn back high frequency sampling for penetrating the signals such as traveling wave and quick recording；
S3, background terminal (1) determine whether failure belongs to lightning fault by analyzing the difference of current temporary state traveling wave, if lightning stroke
Failure then further determines that shielding or counterattack；
S4, fault point is determined using the traveling wave data of each field monitoring terminal (2) and the GPS of back wave or the Beidou time difference
Exact position.
2. a kind of line fault positioner based on the sampling of FPGA traveling wave according to claim 1, it is characterised in that: phase
The distance between adjacent two groups of monitoring terminals (2) are not more than 30KM.
3. a kind of line fault positioner based on the sampling of FPGA traveling wave according to claim 1, it is characterised in that: institute
Stating monitoring terminal (2) includes failure analysis module (3) and fault location module (4).
4. a kind of line fault positioner based on the sampling of FPGA traveling wave according to claim 1, it is characterised in that: institute
Stating background terminal (1) includes monitoring host computer and display module.
5. a kind of line fault positioner based on the sampling of FPGA traveling wave according to claim 4, it is characterised in that: institute
Stating display module is LED display.
6. a kind of line fault positioner based on the sampling of FPGA traveling wave according to claim 1, it is characterised in that: institute
It states background terminal (1) and is connected with monitoring terminal (2) by internet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313306.7A CN109239532A (en) | 2018-11-06 | 2018-11-06 | A kind of line fault positioner based on the sampling of FPGA traveling wave |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313306.7A CN109239532A (en) | 2018-11-06 | 2018-11-06 | A kind of line fault positioner based on the sampling of FPGA traveling wave |
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| CN109239532A true CN109239532A (en) | 2019-01-18 |
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| CN201811313306.7A Pending CN109239532A (en) | 2018-11-06 | 2018-11-06 | A kind of line fault positioner based on the sampling of FPGA traveling wave |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907755A (en) * | 2019-12-03 | 2020-03-24 | 广西电网有限责任公司电力科学研究院 | Power transmission line online monitoring fault recognition method |
| CN113495201A (en) * | 2021-06-30 | 2021-10-12 | 南京荣港电气技术有限公司 | Distributed power transmission cable fault positioning diagnosis system and positioning diagnosis method |
| CN114910739A (en) * | 2022-04-25 | 2022-08-16 | 广东电网有限责任公司 | Lightning stroke detection method, device, equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590708A (en) * | 2012-02-27 | 2012-07-18 | 广东电网公司电力科学研究院 | Method for identifying lightning stroke fault and non-lightning stroke fault of transmission line |
| CN102645612A (en) * | 2012-02-27 | 2012-08-22 | 广东电网公司电力科学研究院 | Method for distinguishing back flashover faults and lightning shielding failure faults of power transmission line |
| CN103364693A (en) * | 2013-07-15 | 2013-10-23 | 国家电网公司 | Electric transmission line traveling wave fault distance measurement method based on regional data |
| CN106771700A (en) * | 2016-11-11 | 2017-05-31 | 清华大学 | The method for quickly identifying and device of flexible DC power transmission circuit thunderbolt interference |
| CN108169628A (en) * | 2018-02-10 | 2018-06-15 | 新乡市中宝电气有限公司 | Identification lightning fault property and the device and method for being accurately positioned trouble point |
| CN108344923A (en) * | 2018-01-19 | 2018-07-31 | 国家电网公司 | A kind of high-adaptability fault positioning method for transmission line and system |
| CN207780159U (en) * | 2018-02-10 | 2018-08-28 | 新乡市中宝电气有限公司 | Identification lightning fault property and the device for being accurately positioned fault point |
-
2018
- 2018-11-06 CN CN201811313306.7A patent/CN109239532A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590708A (en) * | 2012-02-27 | 2012-07-18 | 广东电网公司电力科学研究院 | Method for identifying lightning stroke fault and non-lightning stroke fault of transmission line |
| CN102645612A (en) * | 2012-02-27 | 2012-08-22 | 广东电网公司电力科学研究院 | Method for distinguishing back flashover faults and lightning shielding failure faults of power transmission line |
| CN103364693A (en) * | 2013-07-15 | 2013-10-23 | 国家电网公司 | Electric transmission line traveling wave fault distance measurement method based on regional data |
| CN106771700A (en) * | 2016-11-11 | 2017-05-31 | 清华大学 | The method for quickly identifying and device of flexible DC power transmission circuit thunderbolt interference |
| CN108344923A (en) * | 2018-01-19 | 2018-07-31 | 国家电网公司 | A kind of high-adaptability fault positioning method for transmission line and system |
| CN108169628A (en) * | 2018-02-10 | 2018-06-15 | 新乡市中宝电气有限公司 | Identification lightning fault property and the device and method for being accurately positioned trouble point |
| CN207780159U (en) * | 2018-02-10 | 2018-08-28 | 新乡市中宝电气有限公司 | Identification lightning fault property and the device for being accurately positioned fault point |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907755A (en) * | 2019-12-03 | 2020-03-24 | 广西电网有限责任公司电力科学研究院 | Power transmission line online monitoring fault recognition method |
| CN113495201A (en) * | 2021-06-30 | 2021-10-12 | 南京荣港电气技术有限公司 | Distributed power transmission cable fault positioning diagnosis system and positioning diagnosis method |
| CN114910739A (en) * | 2022-04-25 | 2022-08-16 | 广东电网有限责任公司 | Lightning stroke detection method, device, equipment and storage medium |
| CN114910739B (en) * | 2022-04-25 | 2024-11-29 | 广东电网有限责任公司 | Lightning stroke detection method, device, equipment and storage medium |
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Application publication date: 20190118 |