CN109755009A - A kind of bimag simplex winding line influence energy taking device and its configuration method - Google Patents
A kind of bimag simplex winding line influence energy taking device and its configuration method Download PDFInfo
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- CN109755009A CN109755009A CN201910072594.XA CN201910072594A CN109755009A CN 109755009 A CN109755009 A CN 109755009A CN 201910072594 A CN201910072594 A CN 201910072594A CN 109755009 A CN109755009 A CN 109755009A
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Abstract
The invention discloses a kind of bimag simplex winding line influence energy taking device and its configuration methods, including hv transmission line and load, the hv transmission line outer sheath is equipped with magnetic core group, the magnetic core group has been externally wrapped with winding, the both ends of the winding are connected with load respectively, and the magnetic core group is that the superposition of two or more magnetic cores is constituted.In order to be obviously improved the initial permeability of composite cores topology and saturated characteristic and expand effective operating current section of energy taking device, the core length of suitable first magnetic core and the second magnetic core is chosen.The present invention can solve the problems, such as traditional punching line influence take can topology can not have the intrinsic of high magnetic permeability and high the two advantages of saturated characteristic concurrently simultaneously, in ultra-high-tension power transmission line on-line monitoring equipment on the spot for electrical domain, the magnetic core is topological and its Parameters design is simple various and is more easily performed, and has good economy and practicability.
Description
Technical field
The invention belongs to the equipotentiality positions of ultra-high-tension power transmission line on-line monitoring equipment on the spot for electrical domain, in particular to a kind of double
Magnetic core simplex winding line influence energy taking device and its configuration method.
Background technique
With the extensive use of electric system power transmission and transformation line and equipment on-line monitoring technique, the monitoring function of electric power Sensor Network
Can be more and more wider with range, such as insulator contamination monitoring, cable connector thermometric etc..These monitoring sensors are typically arranged in open country
Outside, node is numerous, and working environment is severe, therefore maintenance work complex and arduous.To guarantee that it is effective that monitoring device is stablized
Work takes energy powerup issue urgently to be resolved.Due to the magnetic field energy around transmission line of electricity there is alternation, it is all both at home and abroad
More scholars take energy mode to conduct extensive research line influence.This mode has power supply performance stability height, by outer
Boundary influences the advantages that small, and energy power grade is taken to be generally several watts to tens watts, for directly mounting monitoring device on the line
It is not only convenient but also safe to carry out the power supply of equipotentiality position.But there are a fatal weakness, i.e. core material for traditional induction energy fetching mode
Can not be compatible with simultaneously high initial magnetoconductivity and high saturated characteristic the two route take can during must be compatible with the advantages of.Cause
This, when line current wide fluctuations, energy taking device can not may at a time obtain certain energy, or another
Moment causes fever serious due to magnetic core supersaturation, damages energy taking device itself.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of bimag simplex winding route
Induction energy fetching device and its configuration method take energy topology and method for parameter configuration by improving, can be realized to energy taking device
It is promoted simultaneously of both starting characteristic and saturated characteristic.
Technical solution: to achieve the above object, the present invention provides a kind of bimag simplex winding line influence energy taking device, packet
Hv transmission line and load are included, the hv transmission line outer sheath is equipped with magnetic core group, and the magnetic core group has been externally wrapped with winding, institute
The both ends for stating winding are connected with load respectively, and the magnetic core group is that the superposition of two or more magnetic cores is constituted.
Further, each magnetic core size thickness is consistent in the magnetic core group.
Further, the magnetic core group is made of the first magnetic core and the second magnetic core, is superimposed with second on first magnetic core
Magnetic core.
Further, the winding is wound clockwise.
Further, the winding is wrapped anti-clockwise.
A kind of configuration method of bimag simplex winding line influence energy taking device: specific step is as follows:
(4) initial permeability for obtaining the first magnetic core is μi(1#), the initial permeability of the second magnetic core is μi(2#), μ0For vacuum
The interior outer radial dimension of magnetic conductivity, the first magnetic core and the second magnetic core all the same is respectively DinAnd Dout；R is used in loadLIt indicates；First
The core length of magnetic core and the second magnetic core is respectively l1And l2；
(5) obtaining the first magnetic core and the secondary side induced voltage of the second magnetic core is respectively e1# 1(t), e2# 1(t), secondary side around
The number of turns of group is taken as N, and the equivalent inductance and loss resistance of the first winding of secondary side are respectively L2(1#) and R2(1#), secondary side
The equivalent inductance and loss resistance of second winding are respectively L2(2#) and R2(2#), the virtual value of load current is I2, load end electricity
Pressure isFor the impedance angle in equivalent topologies；
In order to be obviously improved the initial permeability of composite cores topology and saturated characteristic and expand the effective of energy taking device
Operating current section, according to conditionWherein l3To appoint
Meaning energy taking device core length；Choose the core length l of the first magnetic core and the second magnetic core1And l2, finally obtain configured route
Induction energy fetching device.
The utility model has the advantages that compared with the prior art, the present invention has the following advantages:
1, it can realize that the equipotentiality position of on-line monitoring device for transmission line powers in real time by line influence energy taking device；
2, the intrinsic of traditional energy taking device can be solved the problems, such as by improving energy taking device core structure and configuring appropriate parameter,
I.e. core material can not possess high initial magnetoconductivity and the two advantages of high saturated characteristic simultaneously, effectively improve induction energy fetching dress
Set effective operation interval of resistance to electric current wide fluctuations；
3, in ultra-high-tension power transmission line equipotentiality position, hanging device such as is powered at the applications in real time, the method for parameter configuration it is simple and
It is more easily performed, there is good economy and practicability, implement in practice very convenient.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of magnetic core group in Fig. 1；
Fig. 3 is the cross-sectional view in the face magnetic core group A-A in Fig. 2；
Fig. 4 is the cross-sectional view in the face magnetic core group B-B in Fig. 3；
Fig. 5 is the circuit model figure in specific embodiment；
Fig. 6 takes and can fill for bimag simplex winding line influence energy taking device of the present invention in specific embodiment and tradition
Set effect contrast figure under the conditions of same line electric current 20A；
Fig. 7 takes and can fill for bimag simplex winding line influence energy taking device of the present invention in specific embodiment and tradition
Set effect contrast figure under the conditions of same line electric current 300A.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figs. 1-5, the present invention includes hv transmission line and load, and the hv transmission line outer sheath is equipped with magnetic core；
Magnetic core 1#With high initial magnetoconductivity and low saturation flux density, magnetic core 2#With low initial permeability and high saturation magnetic flux density；
7., 8. load endpoint is with indicating；5. and 6. the composite cores matched winding endpoint of institute is with indicating；The connecting mode of the topology are as follows:
⑤-⑦,⑧-⑥.R is used in loadLIt indicates.
It, can be equivalent at as shown in Fig. 1 by the composite cores structure according to the working principle of line influence energy taking device
Equivalent circuit diagram.
In fig. 1, composite cores structure energy taking device#Secondary side induced voltage be E12# III, the circle of secondary side winding
Number is taken as N, and equivalent inductance and loss resistance are respectively L2(12#) and R2(12#), the virtual value of load current is I2 III, bear
Load end voltage is uL 3(σ), σ are the impedance angle in equivalent topologies.This makes it possible to obtain composite cores structure energy taking device secondary sides
Induced voltage are as follows:
Assuming that the induced voltage E in Fig. 112# IIIIt is provided by an independent energy taking device, and the coiling side of the energy taking device
Formula, internal-and external diameter are identical as any magnetic core in composite cores, under the premise of proof load output power is constant, then need to meet
μi 12=[μi(1#)l1+μi(2#)l2]/l3
At this point, need to only configure the core length of composite cores topology, so that it is met the condition in following formula and be remarkably improved
The initial permeability of energy taking device
At the same time, relational expression primary, secondary in composite cores topology can be calculated
Length by changing composite cores is the proportionality coefficient of changeable first and second side electric current, to further influence
The saturation depth of magnetic core widens the current margin of energy taking device, greatly improves the anti-primary current fluctuation of energy taking device
Ability.Specific contrast effect is as shown in Figure 6 and Figure 7.
It can be seen from figures 6 and 7 that the composite cores topology protected in the present invention no matter in starting characteristic or
Very big advantage is all had in saturated characteristic, is remarkably improved the power of energy taking device, to promote the practical of energy taking device
Change horizontal, application value with higher.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of bimag simplex winding line influence energy taking device, which is characterized in that including hv transmission line and load, the height
Transmission line outer sheath is pressed to be equipped with magnetic core group, the magnetic core group has been externally wrapped with winding, and the both ends of the winding connect with load respectively
It connects, the magnetic core group is that the superposition of two or more magnetic cores is constituted.
2. a kind of bimag simplex winding line influence energy taking device according to claim 1, which is characterized in that the magnetic core
Each magnetic core size thickness is consistent in group.
3. a kind of bimag simplex winding line influence energy taking device according to claim 1, which is characterized in that the magnetic core
Group is made of the first magnetic core and the second magnetic core, is superimposed with the second magnetic core on first magnetic core.
4. a kind of bimag simplex winding line influence energy taking device according to claim 1, which is characterized in that the winding
For wound clockwise.
5. a kind of bimag simplex winding line influence energy taking device according to claim 1, which is characterized in that the winding
For wrapped anti-clockwise.
6. a kind of configuration method of bimag simplex winding line influence energy taking device: it is characterized by: specific step is as follows:
(1) initial permeability for obtaining the first magnetic core is μi(1#), the initial permeability of the second magnetic core is μi(2#), μ0For vacuum magnetic conductance
The interior outer radial dimension of rate, the first magnetic core and the second magnetic core all the same is respectively DinAnd Dout；R is used in loadLIt indicates；First magnetic core
Core length with the second magnetic core is respectively l1And l2；
(2) obtaining the first magnetic core and the secondary side induced voltage of the second magnetic core is respectively e1# 1(t), e2# 1(t), secondary side winding
The number of turns is taken as N, and the equivalent inductance and loss resistance of the first winding of secondary side are respectively L2(1#) and R2(1#), secondary side second
The equivalent inductance and loss resistance of winding are respectively L2(2#) and R2(2#), the virtual value of load current is I2, load terminal voltage is For the impedance angle in equivalent topologies；
(3) in order to be obviously improved the initial permeability of composite cores topology and saturated characteristic and expand effective work of energy taking device
Make electric current section, according to conditionWithWherein l3It is any
Energy taking device core length；Choose the core length l of the first magnetic core and the second magnetic core1And l2, finally obtain configured route sense
Answer energy taking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072594.XA CN109755009B (en) | 2019-01-25 | 2019-01-25 | Double-magnetic-core single-winding line induction energy-taking device and configuration method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072594.XA CN109755009B (en) | 2019-01-25 | 2019-01-25 | Double-magnetic-core single-winding line induction energy-taking device and configuration method thereof |
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| Publication Number | Publication Date |
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| CN109755009A true CN109755009A (en) | 2019-05-14 |
| CN109755009B CN109755009B (en) | 2020-12-08 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005524248A (en) * | 2002-04-29 | 2005-08-11 | アンビエント・コーポレイション | Power line high current inductive coupler and current transformer |
| CN2938117Y (en) * | 2006-08-16 | 2007-08-22 | 南京南瑞继保电气有限公司 | Compound magnetic core current mutual inductor |
| CN105024460A (en) * | 2015-07-27 | 2015-11-04 | 东南大学 | Design method for 110 kV high-voltage line wireless power supply system used online induction energy-obtaining device |
| CN105353190A (en) * | 2015-09-30 | 2016-02-24 | 中国计量科学研究院 | Low ripple magnetic modulation current sensor |
| CN106021811A (en) * | 2016-06-08 | 2016-10-12 | 福州大学 | Determination method for broadband complex magnetic conductivity of magnetic material |
| CN106911192A (en) * | 2017-04-15 | 2017-06-30 | 三峡大学 | A kind of high voltage induction electricity getting device of doubleway output |
| CN107733098A (en) * | 2017-10-27 | 2018-02-23 | 华北电力大学 | A kind of new rechargeable type high voltage induction electricity getting device |
-
2019
- 2019-01-25 CN CN201910072594.XA patent/CN109755009B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005524248A (en) * | 2002-04-29 | 2005-08-11 | アンビエント・コーポレイション | Power line high current inductive coupler and current transformer |
| CN2938117Y (en) * | 2006-08-16 | 2007-08-22 | 南京南瑞继保电气有限公司 | Compound magnetic core current mutual inductor |
| CN105024460A (en) * | 2015-07-27 | 2015-11-04 | 东南大学 | Design method for 110 kV high-voltage line wireless power supply system used online induction energy-obtaining device |
| CN105353190A (en) * | 2015-09-30 | 2016-02-24 | 中国计量科学研究院 | Low ripple magnetic modulation current sensor |
| CN106021811A (en) * | 2016-06-08 | 2016-10-12 | 福州大学 | Determination method for broadband complex magnetic conductivity of magnetic material |
| CN106911192A (en) * | 2017-04-15 | 2017-06-30 | 三峡大学 | A kind of high voltage induction electricity getting device of doubleway output |
| CN107733098A (en) * | 2017-10-27 | 2018-02-23 | 华北电力大学 | A kind of new rechargeable type high voltage induction electricity getting device |
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