CN105119326A - Electric field overhead line wireless energy-obtaining apparatus - Google Patents
Electric field overhead line wireless energy-obtaining apparatus Download PDFInfo
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- CN105119326A CN105119326A CN201510609186.5A CN201510609186A CN105119326A CN 105119326 A CN105119326 A CN 105119326A CN 201510609186 A CN201510609186 A CN 201510609186A CN 105119326 A CN105119326 A CN 105119326A
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- electric field
- line
- taking device
- transmission line
- overhead transmission
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Abstract
An electric field overhead line wireless energy-obtaining apparatus relates to a wireless power-obtaining apparatus in the technical field of power transmission, and is aimed at solving the problem of the prior art that steady electric energy cannot be provided to an on-line apparatus in a high-voltage environment for a long period of time. A receiver line includes an insulating layer and a copper sheet. The middle part of the rod-shaped receiver line is straight part, and the two ends of the receiver line are quarter arc ends that are bent in the same manner. An insulating sleeve pipe is shaped like a hollow cylinder. One end of the insulating sleeve pipe is fixed to the receiver line. N umbrella-shaped insulating parts are fixed to the insulating sleeve pipe. An insulating lead is positioned inside the insulating sleeve pipe. One end of the insulating lead is electrically connected to the copper sheet inside the receiver, and the other end of the insulating lead is connected to an electric energy input end of a receiver. The beneficial effects of the invention are that the energy of an alternating electric field excited by high voltages of an overhead conductor is converted into low-voltage electric energy that can be used by low-voltage electric equipment, the apparatus exhibits high anti-interference and has a stable energy-obtaining effect, all components are highly reliable, and the apparatus is suitable for wirelessly obtaining energy from a power transmission line.
Description
Technical field
The present invention relates to the wireless electricity getting device of technical field of electric power transmission.
Background technology
Along with the popularization of intelligent power grid technology and Condition-Based Maintenance Technology, in following electrical network except traditional power equipment, also can add more information gathering, become and send and processing unit.Be arranged on high-intensity magnetic field under hyperbaric environment, the power equipment state monitoring devices of highfield radiation has powerful Data Detection, data processing and communication function, but the development of its supply power mode relatively lags behind.Although many field devices close on electrical network, due to the restriction of electric pressure, directly electric energy can not be obtained from high-voltage fence.Be difficult to find suitable power supply cutting point or correct feeding classification, cause very large obstacle to the application of power equipment state monitoring devices.In order to address this problem, current power equipment state monitoring devices adopts usually from charged pool or the supply power mode such as solar energy, wind energy.Although designer have employed multiple corrective measure, such as increase the energy storage density of battery to increase service life, adopt high efficiency photovoltaic cell makeup energy, use long-life bearing to extend the measures such as wind-driven generator life-span, but due to reasons such as cost, technical merit, physical geography weather conditions, critical mechanical component lives, these methods all also exist many difficulties technically with in actual motion, are difficult to the energy supply problem meeting on-line equipment.Therefore urgently studying a kind ofly can provide relatively high power, easy and long-time stable can provide the supply power mode of electric energy to on-line equipment.
Summary of the invention
The object of the invention is for a long time for the on-line equipment be arranged under hyperbaric environment provides the problem of regulated power, a kind of wireless energy taking device of electric field overhead transmission line directly obtaining the low-voltage energy from aerial condutor to be provided to solve prior art.
The wireless energy taking device of electric field overhead transmission line of the present invention, it comprises: receive line, insulating sleeve, N number of insulation full skirt, insulated conductor, receiver and two grading rings;
Described reception line is bar-shaped, and the mid portion receiving line is linear pattern, and two end portions is identical quadrant arc and bending towards of two end portions is identical; The mid portion of described reception line is parallel with aerial condutor, and the bending direction receiving line two end portions is aerial condutor dorsad;
Described reception line comprises insulating barrier and copper sheet, and described copper sheet is flake, and described insulating barrier is wrapped in copper sheet outside;
Described insulating sleeve is hollow cylinder, and one end of insulating sleeve is fixed on and receives on line;
Described N number of insulation full skirt is umbrella-shaped structure, and N number of insulation full skirt is fixed on insulating sleeve, and described N is positive integer;
One end of described insulated conductor is electrically connected through insulating sleeve and the copper sheet receiving line inside;
The other end of described insulated conductor is connected with the electrical energy inputs of receiver;
The electric energy output end of described receiver is connected with the electrical energy inputs of power consumption equipment;
Receiver comprises rectification circuit and voltage stabilizing circuit, the electrical energy inputs of voltage stabilizing circuit is connected with the other end of insulated conductor, the electric energy output end of voltage stabilizing circuit is connected with the electrical energy inputs of rectification circuit, and the electric energy output end of rectification circuit is connected with the electrical energy inputs of power consumption equipment;
Described two grading rings are separately fixed at the both sides receiving line and insulating sleeve junction.
Operation principle of the present invention is: high-voltage overhead conductor is high voltage source, around it, produce high-voltage alternating electric field, when receive line with its near time, high-voltage overhead conductor constitutes the structure of an equivalent electric capacity C with reception line, and capacitance is C
1.If be connected with the earth by load resistance R by conductor, wherein load resistance resistance is R
1, electric capacity C is connected in high voltage source.The then voltage U of load resistance R
rfor:
Wherein, U
aCfor the rated voltage of aerial condutor; J is imaginary symbols; ω=2 π f, f are the power frequency of aerial condutor;
Its phasor meets:
U
R+U
C＝U
AC
Wherein, U
cfor the voltage at electric capacity C two ends;
Due to the power P of resistance
rfor:
When load is constant, the voltage U at electric capacity two ends
cless, then the power of load resistance R is larger.And connect with load resistance R, as capacitance C due to electric capacity C
1larger, then capacitance voltage U
cvalue less.And capacitance C
1large I judge according to capacitance equation:
C
1＝εε
0S/d
Wherein: C
1for capacitance, unit F;
ε is relative dielectric constant;
ε
0permittivity of vacuum, 8.86 × 10
-12, unit F/m;
S is the area of copper sheet, unit m
2;
D is the distance that namely polar plate spacing receives between line and aerial condutor, unit m.
Therefore, need the reception line arranging greater depth around overhead wire, can improve the area of electric capacity, and then reduce the dividing potential drop of electric capacity thus improve the voltage of load resistance and power, reaching higher getting can power.According to above-mentioned analysis, the length receiving line is longer, and the energy of acquisition is more.
The present invention, by energy in the electric field that utilizes high voltage supply circuit and produce, utilizes capacitance principle, produces high voltage electric field extract electric energy from aerial condutor.The rated voltage of overhead transmission line is generally more than 10kV, when aerial condutor works, can produce power frequency alternating electric field around.According to electric field law, the copper sheet near aerial condutor can produce potential difference, when copper sheet is connected with earth potential by insulated conductor, then wire can produce charging current I
aC.Utilize this principle the electric current collection of insulated conductor is got up just high-pressure energy to be converted into low voltage equipment can low-voltage power.
The invention has the beneficial effects as follows the alternating electric field energy utilizing the high voltage of aerial condutor self to excite, by collect electric field energy be converted into low voltage equipment can low pressure form electric energy; The present invention gets this invention of energy mode by the impact of the factor such as day-night change, intensity of illumination, latitude, weather conditions, wind-force size, vibration environment of natural environment relative to solar energy, wind energy, vibration, and antijamming capability is strong, gets and can stablize; The reliability of element used is higher, does not have moving mechanical member and photovoltaic material, and structure is simple, firm, the life-span is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wireless energy taking device of electric field overhead transmission line of the present invention;
Fig. 2 be receive in Fig. 1 line internal structure and receive line respectively with the annexation schematic diagram of insulating sleeve, wire;
Fig. 3 be the A-A that receives line in Fig. 2 to cutaway view;
Fig. 4 is the cross sectional representation receiving line in embodiment three;
Fig. 5 is high voltage overhead lines when being high voltage source, produces the equivalent circuit diagram of high-voltage alternating electric field around it;
Fig. 6 is load resistance voltage U
rvectogram.
Embodiment
Embodiment one: it is originally execution mode that composition graphs 1, Fig. 2 and Fig. 3 illustrate, the wireless energy taking device of electric field overhead transmission line described in present embodiment, it comprises reception line 5, insulating sleeve 8, N number of insulation full skirt 2, insulated conductor 4 and receiver 3;
Described reception line 5 is in bar-shaped, and the mid portion receiving line 5 is linear pattern, and two end portions is identical quadrant arc and the bending direction of two end portions is identical;
Described reception line 5 comprises insulating barrier 11 and copper sheet 10, and described copper sheet 10 is flake, and it is outside that described insulating barrier 11 is wrapped in copper sheet 10;
Described insulating sleeve 8 is hollow cylinder, and one end of insulating sleeve 8 is fixed on and receives on line 5;
Described N number of insulation full skirt 2 is umbrella-shaped structure, and N number of insulation full skirt 2 is fixed on insulating sleeve 8, and described N is positive integer;
One end of described insulated conductor 4 is electrically connected through insulating sleeve 8 and the copper sheet 10 receiving line 5 inside;
The other end of described insulated conductor 4 is connected with the electrical energy inputs of receiver 3;
The described electric energy output end of receiver 3 is connected with the electrical energy inputs of power consumption equipment.
Embodiment two: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, it also comprises two grading rings 9, described two grading rings 9 are separately fixed at the both sides receiving line 5 and insulating sleeve 8 junction, grading ring 9 is aluminum hollow ring, grading ring 9 smooth surface impulse-free robustness, grading ring 9 receives around line 5 for high-pressure uniform being distributed in, ensure there is no potential difference between each position near grading ring 9, reach the effect of all pressing.
Embodiment three: composition graphs 4 illustrates present embodiment, present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, the cross section of copper sheet 10 is " C " font, has one semiconductor layer in the middle of insulating barrier 11 and copper sheet 10.
Embodiment four: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, receiver 3 comprises rectification circuit and voltage stabilizing circuit, the electrical energy inputs of voltage stabilizing circuit is connected with the other end of insulated conductor 4, the electric energy output end of voltage stabilizing circuit is connected with the electrical energy inputs of rectification circuit, and the electric energy output end of rectification circuit is connected with the electrical energy inputs of power consumption equipment.
Embodiment five: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, the mid portion of described reception line 5 is parallel with aerial condutor, and receiving bending towards of line 5 two end portions is aerial condutor 1 dorsad.
Embodiment six: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, the size of N number of insulation full skirt 2 is divided into two or more, interts and is distributed on insulating sleeve 8.
Embodiment seven: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, receive the length of line 5 to be directly proportional to the power of power consumption equipment, namely, the power of power consumption equipment is larger, and the length receiving line 5 just must be longer.
Embodiment eight: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, adopt the mounting means of mounting, the described wireless energy taking device of electric field overhead transmission line also comprises the equal built on stilts hanging wire 7 of M length and K wire clamp 6, wherein, M and K is positive integer, and K=2M; One end of each built on stilts hanging wire 7 is fixed on aerial condutor 1 by a wire clamp 6, and the other end of each built on stilts hanging wire 7 is also fixed on by a wire clamp 6 and receives on line 5, and described built on stilts hanging wire 7 receives the distance between line 5 and aerial condutor 1 for controlling.
Embodiment nine: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, the length of described built on stilts hanging wire 7 is directly proportional to the voltage of aerial condutor 1, namely, the voltage of aerial condutor 1 is higher, and the length of built on stilts hanging wire 7 just must be longer.
Embodiment ten: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, and in the present embodiment, described built on stilts hanging wire 7 adopts insulating material.
Embodiment 11: composition graphs 5 and Fig. 6 illustrate present embodiment, present embodiment explains the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, high-voltage overhead conductor 1 constitutes the structure of an equivalent electric capacity C with receiving line 5, capacitance is C
1.If be connected with the earth by load resistance R by conductor, wherein, load resistance resistance is R
1, electric capacity C is connected in high voltage source.The then voltage U of load resistance R
rfor:
Wherein, U
aCfor the rated voltage of aerial condutor; J is imaginary symbols; ω=2 π f, f are the power frequency of aerial condutor;
Its phasor meets:
U
R+U
C＝U
AC
Wherein, U
cfor the voltage at electric capacity C two ends;
Due to the power P of resistance
rfor:
When load is constant, capacitance voltage U
cless, then the power of load resistance R is larger.And connect with load resistance R, as capacitance C due to electric capacity C
1larger, then the voltage U at electric capacity two ends
cvalue less.And capacitance C
1large I judge according to capacitance equation:
C
1＝εε
0S/d
Wherein: C
1for capacitance, unit F;
ε is relative dielectric constant;
ε
0permittivity of vacuum, 8.86 × 10
-12, unit F/m;
S is the area of copper sheet, unit m
2;
D is the distance that namely polar plate spacing receives between line and aerial condutor, unit m;
Therefore, need the reception line 5 arranging greater depth around overhead wire, can improve the area of copper sheet 10, and then reduce the dividing potential drop of electric capacity thus improve the voltage of load resistance and power, reaching higher getting can power.According to above-mentioned analysis, the length receiving line 5 is longer, and the energy of acquisition is more.
Energy in the electric field produced by utilizing high voltage supply circuit, utilizes capacitance principle, produces high voltage electric field extract electric energy from aerial condutor 1.The rated voltage of aerial condutor 1 is generally more than 10kV, when aerial condutor 1 works, can produce power frequency alternating electric field around.According to electric field law, the copper sheet 10 near aerial condutor 1 can produce potential difference, when copper sheet 10 is connected with earth potential by insulated conductor 4, then wire can produce charging current I
aC.Utilize this principle the electric current collection of insulated conductor 4 is got up just high-pressure energy to be converted into low voltage equipment can low-voltage power.
Embodiment 12: present embodiment limits further the wireless energy taking device of electric field overhead transmission line described in embodiment one, in the present embodiment, the supports insulative post that the mounting means of electric field overhead transmission line is wireless energy taking device adopts several identical, reception line 5 is supported, is positioned over below aerial condutor 1.
Claims (10)
1. the wireless energy taking device of electric field overhead transmission line, is characterized in that, it comprises reception line (5), insulating sleeve (8), N number of insulation full skirt (2), insulated conductor (4) and receiver (3);
Described reception line (5) is in bar-shaped, and the mid portion receiving line (5) is linear pattern, and two end portions is identical quadrant arc and the bending direction of two end portions is identical;
Described reception line (5) comprises insulating barrier (11) and copper sheet (10), and described copper sheet (10) is flake, and it is outside that described insulating barrier (11) is wrapped in copper sheet (10);
Described insulating sleeve (8) is hollow cylinder, and one end of insulating sleeve (8) is fixed on and receives on line (5);
Described N number of insulation full skirt (2) is umbrella-shaped structure, and N number of insulation full skirt (2) is fixed on insulating sleeve (8), and described N is positive integer;
One end of described insulated conductor (4) is electrically connected through the copper sheet (10) that insulating sleeve (8) is inner with receiving line (5);
The other end of described insulated conductor (4) is connected with the electrical energy inputs of receiver (3);
The electric energy output end of described receiver (3) is connected with the electrical energy inputs of power consumption equipment.
2. the wireless energy taking device of electric field overhead transmission line according to claim 1, it is characterized in that, it also comprises two grading rings (9), and described two grading rings (9) are separately fixed at the both sides receiving line (5) and insulating sleeve (8) junction.
3. the wireless energy taking device of electric field overhead transmission line according to claim 1 and 2, is characterized in that, the cross section of copper sheet (10) is " C " font.
4. the wireless energy taking device of electric field overhead transmission line according to claim 3, it is characterized in that, receiver (3) comprises rectification circuit and voltage stabilizing circuit, the electrical energy inputs of voltage stabilizing circuit is connected with the other end of insulated conductor (4), the electric energy output end of voltage stabilizing circuit is connected with the electrical energy inputs of rectification circuit, and the electric energy output end of rectification circuit is connected with the electrical energy inputs of power consumption equipment.
5. the wireless energy taking device of electric field overhead transmission line according to claim 1,2 or 4, it is characterized in that, mid portion and the aerial condutor of described reception line (5) be arranged in parallel, and receiving bending towards of line (5) two end portions is aerial condutor (1) dorsad.
6. the wireless energy taking device of electric field overhead transmission line according to claim 5, is characterized in that, the size of N number of insulation full skirt (2) is divided into two or more, interts and is distributed on insulating sleeve (8).
7. the wireless energy taking device of electric field overhead transmission line according to claim 1,2,4 or 6, is characterized in that, the length receiving line (5) is directly proportional to the power of power consumption equipment.
8. the wireless energy taking device of electric field overhead transmission line according to claim 7, it is characterized in that, the wireless energy taking device of described electric field overhead transmission line also comprises the equal built on stilts hanging wire (7) of M length and K wire clamp (6), wherein, M and K is positive integer, and K=2M; One end of each built on stilts hanging wire (7) is fixed on aerial condutor (1) by a wire clamp (6), and the other end of each built on stilts hanging wire (7) is also fixed on by a wire clamp (6) and receives on line (5).
9. the wireless energy taking device of electric field overhead transmission line according to claim 1,2,4,6 or 8, is characterized in that, the length of described built on stilts hanging wire (7) is directly proportional to the voltage of aerial condutor (1).
10. the wireless energy taking device of electric field overhead transmission line according to claim 9, is characterized in that, described built on stilts hanging wire (7) adopts insulating material.
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|---|---|---|---|
| CN201510609186.5A CN105119326B (en) | 2015-09-22 | 2015-09-22 | Electric field overhead transmission line is wireless energy taking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609186.5A CN105119326B (en) | 2015-09-22 | 2015-09-22 | Electric field overhead transmission line is wireless energy taking device |
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| CN105119326A true CN105119326A (en) | 2015-12-02 |
| CN105119326B CN105119326B (en) | 2017-11-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253488A (en) * | 2016-10-01 | 2016-12-21 | 石刘玉 | A kind of low-potential voltage type space electric field energy taking device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118067A (en) * | 2009-12-30 | 2011-07-06 | 山东电力集团公司淄博供电公司 | Non-contact high-voltage power obtaining method |
| CN102231572A (en) * | 2011-07-07 | 2011-11-02 | 华北电力大学 | Method and system for power supply by extracting energy from ultrahigh voltage and extra-high voltage alternating current transmission lines |
| CN102522831A (en) * | 2011-12-08 | 2012-06-27 | 辽宁省电力有限公司沈阳超高压分公司 | Non-contact electric field type induction power access method and power access apparatus thereof |
-
2015
- 2015-09-22 CN CN201510609186.5A patent/CN105119326B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118067A (en) * | 2009-12-30 | 2011-07-06 | 山东电力集团公司淄博供电公司 | Non-contact high-voltage power obtaining method |
| CN102231572A (en) * | 2011-07-07 | 2011-11-02 | 华北电力大学 | Method and system for power supply by extracting energy from ultrahigh voltage and extra-high voltage alternating current transmission lines |
| CN102522831A (en) * | 2011-12-08 | 2012-06-27 | 辽宁省电力有限公司沈阳超高压分公司 | Non-contact electric field type induction power access method and power access apparatus thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253488A (en) * | 2016-10-01 | 2016-12-21 | 石刘玉 | A kind of low-potential voltage type space electric field energy taking device |
| CN106253488B (en) * | 2016-10-01 | 2018-05-22 | 石刘玉 | A kind of low-potential voltage type space electric field energy taking device |
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| Publication number | Publication date |
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| CN105119326B (en) | 2017-11-21 |
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