CN204030734U - A kind of ultra-high-tension power transmission line ground wire energy taking device - Google Patents
A kind of ultra-high-tension power transmission line ground wire energy taking device Download PDFInfo
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- CN204030734U CN204030734U CN201420501919.4U CN201420501919U CN204030734U CN 204030734 U CN204030734 U CN 204030734U CN 201420501919 U CN201420501919 U CN 201420501919U CN 204030734 U CN204030734 U CN 204030734U
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Abstract
The utility model discloses a kind of ultra-high-tension power transmission line ground wire energy taking device, it comprises instrument transformer, electromagnetic interface filter, overvoltage crowbar, rectification circuit piece and filter circuit, the ground wire of high voltage transmission line is through instrument transformer, instrument transformer obtains AC energy, the output of instrument transformer is connected with electromagnetic interface filter, electromagnetic interface filter filtering common mode disturbs and differential mode interference, the output of electromagnetic interface filter is connected with overvoltage crowbar, overvoltage crowbar has lightning protection effect, and the described energy taking device of protection is not broken by surge, the output of overvoltage crowbar is connected with rectification circuit, rectification circuit is DC power supply by AC power rectification, the output of rectification circuit is connected with filter circuit, the galvanic clutter of the further filtering of filter circuit, the output of filter circuit and on-line monitoring equipment connection.The utility model adopts electromagnetic induction technology, gets the electric energy of relatively high power by the little electric current on transmission of electricity ground wire, and realizing low cost and high reliability is on-line monitoring equipment or storage battery power supply.
Description
Technical field
The utility model relates to high voltage supply field, particularly relates to a kind of ultra-high-tension power transmission line ground wire energy taking device.
Background technology
Intelligent grid is the development trend of power supply and transmission of electricity.And on-line monitoring belongs to the requisite part of intelligent grid.The power supply of on-line monitoring equipment is a problem demanding prompt solution.
At present the conventional supply power mode of on-line condition monitoring equipment has: solar powered, storage battery power supply, laser powered sensor, capacitor voltage divider power supply, ultrasonic wave power supply, mutual inductance energy supply etc.
Due to the maturation of technology, the supply power mode of solar energy is more in the application of condition monitoring system at present, but its carrying load ability is limited, is subject to weather effect, and needs long-time maintenance; Simple in structure being easy to of single storage battery energy supply realized, but its life-span is limited, need to regularly replace battery, can not meet the condition of long-time running; Laser energy supply output voltage ripple is less, and noise is low, be not vulnerable to the interference of extraneous other factors, but this method also can be subject to the restriction of laser output power, the particularly impact of photocell conversion efficiency, has strengthened difficulty and the use cost of circuit design; Capacitor voltage divider energy supply simplicity of design, is easy to obtain, but be easily subject to temperature, the impact of the factor such as stray capacitance, interference, electromagnetic compatibility; Although ultrasonic wave energy supply is a kind of newer energy-provision way, also exist equipment manufacturing cost high, the problem such as the conversion efficiency of transducer is low, in this way also do not reach real practical degree, still need further research.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of ultra-high-tension power transmission line ground wire energy taking device is provided, and can realize low cost and high reliability and solve the powerup issue of intelligent grid on-line monitoring equipment.
The purpose of this utility model is achieved through the following technical solutions: a kind of ultra-high-tension power transmission line ground wire energy taking device, utilize the little electric current on high voltage power transmission ground wire, get the electric energy of relatively high power by electromagnetic induction principle, for transmission line on-line monitoring equipment provides working power, it comprises instrument transformer, electromagnetic interface filter, overvoltage crowbar, rectification circuit piece and filter circuit, the ground wire of high voltage transmission line is through instrument transformer, instrument transformer obtains AC energy, the output of instrument transformer is connected with electromagnetic interface filter, electromagnetic interface filter filtering common mode disturbs and differential mode interference, the output of electromagnetic interface filter is connected with overvoltage crowbar, overvoltage crowbar has lightning protection effect, and the described energy taking device of protection is not broken by surge, the output of overvoltage crowbar is connected with rectification circuit, rectification circuit is DC power supply by AC power rectification, the output of rectification circuit is connected with filter circuit, the galvanic clutter of the further filtering of filter circuit, the output of filter circuit and on-line monitoring equipment connection.
Described instrument transformer is composed in series by multiple power taking inductance.
Described instrument transformer is made up of multiple power taking inductance in parallels.
Described instrument transformer is composed in series one group by multiple power taking inductance, and then composes in parallel by organizing series inductance more.
Described instrument transformer forms one group by multiple power taking inductance in parallels, and then is composed in series by organizing shunt inductance more.
Described power taking inductance comprises magnetic core and wire, and wire is wound on magnetic core, and described magnetic core is orientation silicon steel, non-orientation silicon steel, iron core-closed or cutting iron core.
Described magnetic core is circular or oval.
The series connection number of described power taking inductance determined by required output voltage, described get can inductance number in parallel determined by required output current.
The radius of described magnetic core and volume determined by needed power output, and the wire diameter of described wire and the number of turn of coiling are determined by required power output.
The beneficial effects of the utility model are: the utility model adopts electromagnetic induction technology, only need to flow through certain electric current on transmission of electricity ground wire, just can get electric energy by power taking inductance; By the little electric current on transmission of electricity ground wire, get the electric energy of relatively high power, can be on-line monitoring equipment or storage battery power supply low cost and high reliability; Improve reliability and the validity of the power taking of ultra-high-tension power transmission line high-pressure side, weatherproof, not affected by environment, non-maintaining, cost is low.
Brief description of the drawings
Fig. 1 is the utility model systematic schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of ultra-high-tension power transmission line ground wire energy taking device, utilize the little electric current on high voltage power transmission ground wire, get the electric energy of relatively high power by electromagnetic induction principle, for transmission line on-line monitoring equipment provides working power, it comprises instrument transformer, electromagnetic interface filter, overvoltage crowbar, rectification circuit piece and filter circuit, the ground wire of high voltage transmission line is through instrument transformer, instrument transformer obtains AC energy, the output of instrument transformer is connected with electromagnetic interface filter, electromagnetic interface filter filtering common mode disturbs and differential mode interference, the output of electromagnetic interface filter is connected with overvoltage crowbar, overvoltage crowbar has lightning protection effect, and the described energy taking device of protection is not broken by surge, the output of overvoltage crowbar is connected with rectification circuit, rectification circuit is DC power supply by AC power rectification, the output of rectification circuit is connected with filter circuit, the galvanic clutter of the further filtering of filter circuit, the output of filter circuit and on-line monitoring equipment connection.
Described instrument transformer comprises multiple power taking inductance.Use multiple power taking inductance to realize: as long as have little electric current on transmission of electricity ground wire, just can effectively get by electromagnetic induction the electric energy of relatively high power.
Described instrument transformer is composed in series by multiple power taking inductance.
Described instrument transformer is made up of multiple power taking inductance in parallels.
Described instrument transformer is composed in series one group by multiple power taking inductance, and then composes in parallel by organizing series inductance more.
Described instrument transformer forms one group by multiple power taking inductance in parallels, and then is composed in series by organizing shunt inductance more.
As shown in Figure 1, the instrument transformer in this scheme is made up of 9 power taking inductance, and every 3 power taking inductance are connected in series one group of composition, forms altogether the power taking inductance of 3 groups of series connection, and the power taking inductance of 3 groups of series connection is again by output after being connected in parallel.
Described power taking inductance comprises magnetic core and wire, and wire is wound on magnetic core, and described magnetic core is orientation silicon steel, non-orientation silicon steel, iron core-closed or cutting iron core.
Described magnetic core is circular or oval.
Silicon steel low price, stable performance, be to be easy to magnetized ferrimagnet, and the geometry of silicon steel can be circular, can be also oval other shapes that wait, and the technique of processing magnetic core is pressed general technology.
The series connection number of described power taking inductance determined by required output voltage, described get can inductance number in parallel determined by required output current.
The radius of described magnetic core and volume determined by needed power output, and the wire diameter of described wire and the number of turn of coiling are determined by required power output.
The output lead single turn of AC power is passed to all power taking inductance.Two output leads of power taking inductance are connected to electromagnetic interface filter, overvoltage crowbar, rectification circuit piece and filter circuit successively, and then direct current output connects load.
Load is on-line monitoring equipment, can also be on-line monitoring equipment configuration storage battery, store electrical energy.
Open AC power, make AC power export certain current value, instrument transformer is started working, the similar current transformer of power taking inductance role, and the ground wire of a high voltage transmission line is through instrument transformer, and the elementary of power taking inductance is a circle, supposes the secondary N of being circle.
AC power is exported after certain current value, and the magnetic flux of power taking inductance core inside changes, and by electromagnetic induction principle, certain alternating current is exported at power taking inductance N circle wire two ends.
By the power taking inductance of series connection, the voltage of the alternating current of output increases, then by power taking inductance in parallel, the electric current of the alternating current of output is increased, thereby realize by less primary current, obtains the output electric energy of relatively high power.
This output AC electricity is again by electromagnetic interface filter, and electromagnetic interface filter filtering common mode disturbs and differential mode interference.
Filtered alternating current is again by overvoltage crowbar, and overvoltage crowbar protection energy taking device is not broken by surge, and has lightning protection effect.
Alternating current is exported direct current by rectification circuit again, and direct current passes through filter circuit again, the galvanic clutter of filter circuit filtering, and filtered direct current can be just on-line monitoring equipment and storage battery power supply.
By the physical dimension of appropriate design magnetic core, wire wire rod, wire diameter and the number of turn of appropriate design secondary winding, and the reasonable series and parallel connections connected mode of final multiple electricity taking coils, just can realize by less primary current, obtain the electric energy of relatively high power.
The utility model only needs to flow through certain electric current on ground wire, just can get electric energy by power taking inductance.Improve reliability and the validity of the power taking of ultra-high-tension power transmission line high-pressure side, weatherproof, not affected by environment, non-maintaining, cost is low.By the little electric current on transmission of electricity ground wire, get the electric energy of relatively high power, can low cost and high reliability ground be the power supply of on-line monitoring equipment.
Claims (9)
1. a ultra-high-tension power transmission line ground wire energy taking device, utilize the little electric current on high voltage power transmission ground wire, get the electric energy of relatively high power by electromagnetic induction principle, for transmission line on-line monitoring equipment provides working power, it is characterized in that: it comprises instrument transformer, electromagnetic interface filter, overvoltage crowbar, rectification circuit piece and filter circuit, the ground wire of high voltage transmission line is through instrument transformer, instrument transformer obtains AC energy, the output of instrument transformer is connected with electromagnetic interface filter, electromagnetic interface filter filtering common mode disturbs and differential mode interference, the output of electromagnetic interface filter is connected with overvoltage crowbar, overvoltage crowbar has lightning protection effect, and the described energy taking device of protection is not broken by surge, the output of overvoltage crowbar is connected with rectification circuit, rectification circuit is DC power supply by AC power rectification, the output of rectification circuit is connected with filter circuit, the galvanic clutter of the further filtering of filter circuit, the output of filter circuit and on-line monitoring equipment connection.
2. a kind of ultra-high-tension power transmission line ground wire energy taking device according to claim 1, is characterized in that: described instrument transformer is composed in series by multiple power taking inductance.
3. a kind of ultra-high-tension power transmission line ground wire energy taking device according to claim 1, is characterized in that: described instrument transformer is made up of multiple power taking inductance in parallels.
4. a kind of ultra-high-tension power transmission line ground wire energy taking device according to claim 1, is characterized in that: described instrument transformer is composed in series one group by multiple power taking inductance, and then composes in parallel more by organizing series inductance.
5. a kind of ultra-high-tension power transmission line ground wire energy taking device according to claim 1, is characterized in that: described instrument transformer forms one group by multiple power taking inductance in parallels, and then is composed in series more by organizing shunt inductance.
6. according to a kind of ultra-high-tension power transmission line ground wire energy taking device described in claim 2-5, it is characterized in that: described power taking inductance comprises magnetic core and wire, wire is wound on magnetic core, and described magnetic core is orientation silicon steel, non-orientation silicon steel, iron core-closed or cutting iron core.
7. a kind of ultra-high-tension power transmission line ground wire energy taking device according to claim 6, is characterized in that: described magnetic core is for circular or oval.
8. according to a kind of ultra-high-tension power transmission line ground wire energy taking device described in claim 2-5, it is characterized in that: the series connection number of described power taking inductance determined by required output voltage, described get can inductance number in parallel determined by required output current.
9. a kind of ultra-high-tension power transmission line ground wire energy taking device according to claim 6, it is characterized in that: the radius of described magnetic core and volume determined by needed power output, the wire diameter of described wire and the number of turn of coiling are determined by required power output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501919.4U CN204030734U (en) | 2014-09-02 | 2014-09-02 | A kind of ultra-high-tension power transmission line ground wire energy taking device |
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| CN201420501919.4U CN204030734U (en) | 2014-09-02 | 2014-09-02 | A kind of ultra-high-tension power transmission line ground wire energy taking device |
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| CN204030734U true CN204030734U (en) | 2014-12-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184221A (en) * | 2014-09-02 | 2014-12-03 | 四川汇源光通信有限公司 | High-voltage transmission line ground wire energy getting device |
| CN106849369A (en) * | 2017-04-05 | 2017-06-13 | 贵州电网有限责任公司电力科学研究院 | The energy taking device and method of the built on stilts lightning protection ground wire of the transmission line of electricity based on CT power takings |
| CN110299731A (en) * | 2019-07-31 | 2019-10-01 | 国网信息通信产业集团有限公司 | Transmission line of electricity Online Video monitoring system |
-
2014
- 2014-09-02 CN CN201420501919.4U patent/CN204030734U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184221A (en) * | 2014-09-02 | 2014-12-03 | 四川汇源光通信有限公司 | High-voltage transmission line ground wire energy getting device |
| CN106849369A (en) * | 2017-04-05 | 2017-06-13 | 贵州电网有限责任公司电力科学研究院 | The energy taking device and method of the built on stilts lightning protection ground wire of the transmission line of electricity based on CT power takings |
| CN110299731A (en) * | 2019-07-31 | 2019-10-01 | 国网信息通信产业集团有限公司 | Transmission line of electricity Online Video monitoring system |
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