CN109660018A - A kind of transmission line of electricity sensing electricity getting device based on Rogowski coil - Google Patents
A kind of transmission line of electricity sensing electricity getting device based on Rogowski coil Download PDFInfo
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- CN109660018A CN109660018A CN201910138276.9A CN201910138276A CN109660018A CN 109660018 A CN109660018 A CN 109660018A CN 201910138276 A CN201910138276 A CN 201910138276A CN 109660018 A CN109660018 A CN 109660018A
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- rogowski coil
- transmission line
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- 230000005611 electricity Effects 0.000 title claims abstract description 55
- 230000005540 biological transmission Effects 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 238000012806 monitoring device Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J11/00—Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H02J7/025—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The present invention relates to transmission lines of electricity to incude power taking technology field; more specifically; it is related to a kind of transmission line of electricity sensing electricity getting device based on Rogowski coil; electric unit, rectification filtering unit, load unit, Rogowski coil detection unit, protection location and standby battery unit are taken including current transformer; the device can be in transmission line of electricity short circuit; fault current is detected by Rogowski coil; protect circuit operation; by electricity taking coil secondary circuit short-circuit; electricity taking coil and monitoring device are protected, and is simultaneously that monitoring device continues stable power-supplying by reserve battery access circuit；Long-term, stable operation power supply is provided for outdoor on-line monitoring equipment, the safe operation of transmission line of electricity is ensured, prevents the generation of major accident.
Description
Technical field
The present invention relates to transmission lines of electricity to incude power taking technology field, more specifically, is related to a kind of based on Rogowski coil
Transmission line of electricity sensing electricity getting device.
Background technique
The power supply of monitoring device on current transmission line of electricity mainly has: solar powered, climate influences greatly, surely
It is qualitative poor；Storage battery power supply, the frequent replacement of battery is inconvenient in outdoor monitoring system, and maintenance workload is big；Laser powered sensor,
Higher operating costs；Electromagnetic induction takes electricity, small in size, at low cost, and power transmission line takes electricity reliable and easy for installation, but will receive defeated
The influence that electric line transmits electric current is big.In the long run, above-mentioned several power supply modes do not meet the economy of sustainable development
Condition causes high voltage transmission line road to be difficult to popularization and realizes on line real-time monitoring function.The electric current transmitted on transmission line of electricity, just
Change in normal situation steady.It, can be with short circuit current and dash current, dash current amplitude however when short circuit occurs for route
Height, variation is fast, invades in the system of electricity getting device, threatens the safe operation of electricity getting device.So electricity taking coil secondary side can produce
Raw transient high voltages, the huge electric power of generation will lead to coil destruction.For load, formed in Current Transformer Secondary side
High-pressure sharp pulse can make the working condition of monitoring device by extreme influence.When short circuit occurs for transmission line of electricity, electricity getting device
It cannot be load normal power supply, therefore, the electricity that takes of equipment is a big technical problem under transmission line of electricity short-circuit conditions.
Summary of the invention
The transmission line of electricity sensing electricity getting device based on Rogowski coil that the purpose of the present invention is to provide a kind of, solves existing skill
Transmission line of electricity sensing electricity getting device power supply in art exports unstable problem.
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of transmission line of electricity sensing electricity getting device based on Rogowski coil, including current transformer take electric unit, rectifying and wave-filtering list
Member, load unit, Rogowski coil detection unit, protection location and standby battery unit；The current transformer takes electric unit
Output end connects the input terminal of rectification filtering unit, and the output end of rectification filtering unit connects load unit；The Current Mutual Inductance
Device takes electric unit to obtain current information from transmission line of electricity, is transmitted to rectification filtering unit, and rectified filter unit believes electric current
Breath is converted to DC current, powers for load unit；The protection location include comparing unit, the first relay and second after
Electric appliance；The current transformer takes and is provided with the first relay between electric unit and rectification filtering unit, the rectifying and wave-filtering list
The second relay is provided between member and load unit, the normally-closed contact of second relay connects standby battery unit；Institute
Comparing unit input terminal and Rogowski coil detection unit is stated to be electrically connected, the comparing unit output end respectively with the first relay
It is electrically connected with the second relay；The Rogowski coil detection unit uses Rogowski coil, when there is short circuit in transmission line of electricity, by
Standby battery unit is accessed circuit by protection location movement, is powered for load unit.
Further, the comparing unit compares the detection limit of Rogowski coil detection unit and preset voltage value
Compared with, when detection limit is higher than preset value, trigger relay part；Current transformer is taken electric unit secondary by first relay
Standby battery unit is accessed in circuit and is powered for load unit by side short circuit, the second relay.
Compared with prior art, the advantageous effect of present invention is that:
The transmission line of electricity sensing electricity getting device based on Rogowski coil that the present invention provides a kind of, which can be short out in power transmission line
Lu Shi detects fault current by Rogowski coil, protects circuit operation, by electricity taking coil secondary circuit short-circuit, protects electricity taking coil
With monitoring device, and simultaneously by reserve battery access circuit be monitoring device continue stable power-supplying.For outdoor on-line monitoring equipment
Long-term, stable operation power supply is provided, the safe operation of transmission line of electricity is ensured, prevents the generation of major accident.
Detailed description of the invention
Fig. 1 is a kind of transmission line of electricity sensing electricity getting device structural schematic diagram based on Rogowski coil provided by the invention；
Fig. 2 is a kind of transmission line of electricity sensing electricity getting device work flow diagram based on Rogowski coil provided by the invention.
In figure: 1 be current transformer take electric unit, 2 be rectification filtering unit, 3 be load unit, 4 be Rogowski coil inspection
Survey unit, 5 be protection location, 51 be comparing unit, 52 be the first relay, 53 be the second relay, 6 be reserve battery list
Member, 7 are transmission line of electricity.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of transmission line of electricity sensing electricity getting device based on Rogowski coil, including current transformer take electric list
Member 1, rectification filtering unit 2, load unit 3, Rogowski coil detection unit 4, protection location 5 and standby battery unit 6；Electric current is mutual
Sensor takes the output end of electric unit 1 to connect the input terminal of rectification filtering unit 2, and the output end of rectification filtering unit 2, which connects, to be loaded
Unit 3；Current transformer takes electric unit 1 to obtain current information from transmission line of electricity 7, is transmitted to rectification filtering unit 2, rectified
Current information is converted to DC current by filter unit 2, is powered for load unit 3；Protection location 5 includes comparing unit 51, the
One relay 52 and the second relay 53；Current transformer, which takes, is provided with the first relay between electric unit 1 and rectification filtering unit 2
Device 52, is provided with the second relay 53 between rectification filtering unit 2 and load unit 3, the normally-closed contact of the second relay 53 connects
Connect standby battery unit 6；51 input terminal of comparing unit and Rogowski coil detection unit 4 are electrically connected, 51 output end of comparing unit
It is electrically connected respectively with the first relay 52 and the second relay 53；Rogowski coil detection unit 4 uses Rogowski coil, works as transmission of electricity
When short circuit occurs in route 7, standby battery unit 6 is accessed into circuit by the movement of protection location 5, is powered for load unit 3.
As shown in Fig. 2, in the present embodiment, comparing unit 51 by the detection limit of Rogowski coil detection unit 4 with it is preset
Voltage value is compared, when detection limit is higher than preset value, trigger relay part；First relay 52 takes current transformer
Standby battery unit 6 is accessed in circuit and is powered for load unit 3 by electric unit (CT) secondary circuit short-circuit, the second relay 53.
In the present embodiment, current transformer takes electric unit for incuding the output electric current of transmission line of electricity；Rectifying and wave-filtering list
Member is for taking the alternating current of electric unit to be converted to direct current Current Mutual Inductance；Rogowski coil is set on the transmission line, output end
It is electrically connected with protection location；Transmission line of electricity electric current to be measured is flowed through at the Rogowski coil center of Rogowski coil detection unit, in sieve
Induced potential is generated in family name's coil, exports a voltage value, which is input to protection location as detection limit.
Only presently preferred embodiments of the present invention is explained in detail above, but the present invention is not limited to above-described embodiment,
Within the knowledge of a person skilled in the art, it can also make without departing from the purpose of the present invention each
Kind variation, various change should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of transmission line of electricity sensing electricity getting device based on Rogowski coil, it is characterised in that: taken including current transformer electric single
First (1), rectification filtering unit (2), load unit (3), Rogowski coil detection unit (4), protection location (5) and reserve battery list
First (6)；The current transformer takes the input terminal of output end connection rectification filtering unit (2) of electric unit (1), rectifying and wave-filtering list
The output end of first (2) connects load unit (3)；The current transformer takes electric unit (1) to obtain electric current from transmission line of electricity (7)
Information is transmitted to rectification filtering unit (2), and current information is converted to DC current by rectified filter unit (2), single for load
First (3) power supply；The protection location (5) includes comparing unit (51), the first relay (52) and the second relay (53)；Institute
It states current transformer and takes and be provided with the first relay (52), the rectifying and wave-filtering between electric unit (1) and rectification filtering unit (2)
It is provided between unit (2) and load unit (3) the second relay (53), the normally-closed contact connection of second relay (53)
Standby battery unit (6)；Comparing unit (51) input terminal and Rogowski coil detection unit (4) are electrically connected, the comparison
Unit (51) output end is electrically connected with the first relay (52) and the second relay (53) respectively；The Rogowski coil detection is single
First (4) use Rogowski coil, when short circuit occur in transmission line of electricity (7), are acted by protection location (5) by standby battery unit (6)
Circuit is accessed, is powered for load unit (3).
2. a kind of transmission line of electricity sensing electricity getting device based on Rogowski coil according to claim 1, it is characterised in that: institute
The detection limit of Rogowski coil detection unit (4) is compared by the comparing unit (51) stated with preset voltage value, works as detection limit
When higher than preset value, trigger relay part；Current transformer is taken electric unit secondary circuit short-circuit by first relay (52),
Standby battery unit (6) are accessed in circuit and are powered for load unit (3) by the second relay (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138276.9A CN109660018A (en) | 2019-02-25 | 2019-02-25 | A kind of transmission line of electricity sensing electricity getting device based on Rogowski coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138276.9A CN109660018A (en) | 2019-02-25 | 2019-02-25 | A kind of transmission line of electricity sensing electricity getting device based on Rogowski coil |
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| Publication Number | Publication Date |
|---|---|
| CN109660018A true CN109660018A (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910138276.9A Pending CN109660018A (en) | 2019-02-25 | 2019-02-25 | A kind of transmission line of electricity sensing electricity getting device based on Rogowski coil |
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| Country | Link |
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| CN (1) | CN109660018A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650458A (en) * | 2020-06-09 | 2020-09-11 | 南京师范大学 | Self-powered energy taking device for power transmission line and multi-dimensional state monitoring method thereof |
| CN111953057A (en) * | 2020-08-13 | 2020-11-17 | 山东信通电子股份有限公司 | Intelligent charging circuit based on line current change and control method |
| CN117706389A (en) * | 2023-12-21 | 2024-03-15 | 中国矿业大学(北京) | Monitoring and early warning system and method for electrochemical energy storage power station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5006846A (en) * | 1987-11-12 | 1991-04-09 | Granville J Michael | Power transmission line monitoring system |
| CN101697430A (en) * | 2009-11-12 | 2010-04-21 | 上海交通大学 | Power control method based CT electricity getting device of high voltage transmission line |
| CN203405509U (en) * | 2013-07-25 | 2014-01-22 | 广西电网公司南宁供电局 | A high-voltage cable instantaneous short circuit fault current detecting apparatus designed by a Rogowski Coil |
| CN107589349A (en) * | 2017-10-24 | 2018-01-16 | 国家电网公司 | High voltage induction electricity getting system |
| CN209282928U (en) * | 2019-02-25 | 2019-08-20 | 国网山西省电力公司吕梁供电公司 | A kind of transmission line of electricity sensing electricity getting device based on Rogowski coil |
-
2019
- 2019-02-25 CN CN201910138276.9A patent/CN109660018A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5006846A (en) * | 1987-11-12 | 1991-04-09 | Granville J Michael | Power transmission line monitoring system |
| CN101697430A (en) * | 2009-11-12 | 2010-04-21 | 上海交通大学 | Power control method based CT electricity getting device of high voltage transmission line |
| CN203405509U (en) * | 2013-07-25 | 2014-01-22 | 广西电网公司南宁供电局 | A high-voltage cable instantaneous short circuit fault current detecting apparatus designed by a Rogowski Coil |
| CN107589349A (en) * | 2017-10-24 | 2018-01-16 | 国家电网公司 | High voltage induction electricity getting system |
| CN209282928U (en) * | 2019-02-25 | 2019-08-20 | 国网山西省电力公司吕梁供电公司 | A kind of transmission line of electricity sensing electricity getting device based on Rogowski coil |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650458A (en) * | 2020-06-09 | 2020-09-11 | 南京师范大学 | Self-powered energy taking device for power transmission line and multi-dimensional state monitoring method thereof |
| CN111650458B (en) * | 2020-06-09 | 2022-06-28 | 南京师范大学 | Self-powered energy taking device for power transmission line and multi-dimensional state monitoring method thereof |
| CN111953057A (en) * | 2020-08-13 | 2020-11-17 | 山东信通电子股份有限公司 | Intelligent charging circuit based on line current change and control method |
| CN117706389A (en) * | 2023-12-21 | 2024-03-15 | 中国矿业大学(北京) | Monitoring and early warning system and method for electrochemical energy storage power station |
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