CN107040144A - Energy taking device and seal based on capacitive divider - Google Patents
Energy taking device and seal based on capacitive divider Download PDFInfo
- Publication number
- CN107040144A CN107040144A CN201710296532.8A CN201710296532A CN107040144A CN 107040144 A CN107040144 A CN 107040144A CN 201710296532 A CN201710296532 A CN 201710296532A CN 107040144 A CN107040144 A CN 107040144A
- Authority
- CN
- China
- Prior art keywords
- capacitive divider
- output end
- energy
- voltage
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/06—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using impedances
- H02M5/08—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using impedances using capacitors only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/005—Insulators structurally associated with built-in electrical equipment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/068—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode mounted on a transformer
Abstract
Energy technical field is taken the present invention relates to high-tension distributing line, it is a kind of energy taking device and seal based on capacitive divider, including high voltage bus, capacitive divider, Transformer Rectifier Unit and power conversion unit, capacitive divider includes taking energy electric capacity and derided capacitors, the input of energy electric capacity is taken to be connected electrically on high voltage bus, the output end of energy electric capacity is taken to be electrically connected with derided capacitors input, the output head grounding of derided capacitors, draw-out power supply lead is electrically connected with the input and output end for taking energy electric capacity, the input of Transformer Rectifier Unit is electrically connected with draw-out power supply output end, the output end of Transformer Rectifier Unit is electrically connected with the input of power conversion unit.The present invention obtains from high-tension line electric energy by capacitive divider and by Transformer Rectifier Unit by the direct current of AC conversion voltage class for needed for, is converted into stable DC by power conversion unit electric.The present invention has small volume, and lightweight, cost is low, long lifespan, the characteristics of security is good.
Description
Technical field
Energy technical field is taken the present invention relates to high-tension distributing line, is a kind of energy taking device based on capacitive divider and exhausted
Edge device.
Background technology
At present, when being monitored on-line to distribution line, the power supply supply of its transmission line of electricity is the key issue that need to be solved
One of.When reality is monitored on-line, various sensors and signal transmitting unit due to gathering signal etc. are all laid in built on stilts
Near line, setting height(from bottom) and installation site are very limited, thus can not possibly use normal power supplies.It is additionally, since to upper
State power work that sensor and signal transmitting unit etc. be powered in the wild, inconvenient maintenance, thus generally above-mentioned power supply is equal
Need to possess long-term non-maintaining function, then mutually the reliability of reply power supply proposes very high request.
Direct partial pressure between electric capacity and transformer being used existing voltage energy taking device, because the inductance value of transformer is more
One unstable value, causes output voltage stability and poor reliability；Energy is taken present in prior art from high-tension line
Equipment be easily affected by the external environment.Therefore, develop special power supply of good performance and be applied to distribution line shape
State parameter online system, with important practical value.
The content of the invention
The invention provides a kind of energy taking device and seal based on capacitive divider, above-mentioned prior art is overcome
Deficiency, its can effectively solve it is existing take can equipment taken from transmission line of electricity can when exist voltage output stability difference and output
The unbalanced problem of line current.
One of technical scheme is realized by following measures：Energy taking device bag based on capacitive divider
High voltage bus, capacitive divider, Transformer Rectifier Unit and power conversion unit are included, the outside of the capacitive divider is provided with insulation
Shell, the capacitive divider include being series between high voltage bus and the earth take can electric capacity and derided capacitors, it is described to take energy
The input of electric capacity is connected electrically on high voltage bus, takes the output end of energy electric capacity to be electrically connected with derided capacitors input, described point
The output head grounding of voltage capacitance, draw-out power supply lead, the change are electrically connected with the input and output end for taking energy electric capacity
The input of pressure rectification unit is electrically connected with draw-out power supply output end, the output end of Transformer Rectifier Unit and power conversion unit
Input is electrically connected.
Here is the further optimization and/or improvements to foregoing invention technical scheme：
The above-mentioned output end for taking energy electric capacity can be in series with multiple derided capacitors, and each derided capacitors is sequentially cascaded.
Above-mentioned Transformer Rectifier Unit may include transformer and rectifier bridge, the transformer inputs and draw-out power supply output end
Electrical connection, piezo-resistance, the input and transformation of the rectifier bridge are parallel with draw-out power supply output end and transformer primary side
The DC capacitor and voltage-stabiliser tube of parallel connection are electrically connected with the output end electrical connection of device, the output end of the rectifier bridge.
Above-mentioned rectifier bridge may include the commutation diode of four encapsulation, and the positive pole of two of which commutation diode is connected to one
Rise and form positive output end, the negative pole of two other commutation diode is joined together to form negative output terminal.
Above-mentioned power conversion unit may include DC voltage-stabilizing module, the input of the DC voltage-stabilizing module and voltage-stabiliser tube
Output end is electrically connected, and the output end of DC voltage-stabilizing module is parallel with filter capacitor.
Above-mentioned DC voltage-stabilizing module can be DC-DC power module；Or/and, DC voltage-stabilizing module can be low-dropout regulator.
Above-mentioned capacitive divider is ceramic condenser divider.
The two of technical scheme are realized by following measures：A kind of use taking based on capacitive divider
The seal of energy device, including insulator, the capacitive divider are arranged on interior insulator.
The present invention obtains electric energy from high-tension line by capacitive divider and is turned alternating current by Transformer Rectifier Unit
The direct current of voltage class, provides relatively stable direct current, confession is converted into by power conversion unit needed for turning to after filtering
The stable DC electricity for the voltage class that insulation sub-control unit is used；Meanwhile, also can fully reduce device volume makes its entirety can
It is built within insulator, reduces cost, lifts service life.The present invention has small volume, and lightweight, cost is low, long lifespan,
The features such as security is good, and do not influenceed by factors such as ferromagnetic resonance, line current, environment, line will not be caused after putting into operation
There is imbalance in road capacity current, and the compact insulator for being especially suitable for low-power consumption is used.
Brief description of the drawings
Accompanying drawing 1 is the circuit diagram of the embodiment of the present invention 1.
Accompanying drawing 2 is the mounting structure schematic diagram of the capacitive divider of the embodiment of the present invention 1.
Accompanying drawing 3 is the Transformer Rectifier Unit circuit diagram of the embodiment of the present invention 1.
Accompanying drawing 4 is the power conversion unit circuit diagram of the embodiment of the present invention 1.
Coding in accompanying drawing is respectively：C1 is takes energy electric capacity, and C2 is derided capacitors, and C3 is filter capacitor, and C4 is direct current
Hold, VD1 is voltage-stabiliser tube, RV1 is piezo-resistance, and Tl is power frequency reducing transformer, and Dl is rectifier bridge.
Embodiment
The present invention is not limited by following embodiments, can technique according to the invention scheme and actual conditions it is specific to determine
Embodiment.
With reference to embodiment and accompanying drawing, the invention will be further described：
Embodiment 1：As shown in accompanying drawing 1,2,3,4, the energy taking device based on capacitive divider includes high voltage bus, capacitance partial pressure
Device, Transformer Rectifier Unit and power conversion unit, the outside of the capacitive divider are provided with insulation crust, the capacitive divider
Energy electric capacity C1 and derided capacitors C2 are taken including being series between high voltage bus and the earth, the input for taking energy electric capacity C1 is electric
It is connected on high voltage bus, takes energy electric capacity C1 output end to be electrically connected with derided capacitors C2 inputs, the derided capacitors C2's
Output head grounding, draw-out power supply lead, the Transformer Rectifier are electrically connected with the input and output end for taking energy electric capacity C1
The input of unit is electrically connected with draw-out power supply output end, the output end of Transformer Rectifier Unit and the input of power conversion unit
Electrical connection.
Here capacitive divider is as energy taking device, its operation principle：Because electric current is anyway in high voltage bus
Change, its voltage is all to stablize constant, is taken so being set up between high voltage bus and the earth after energy electric capacity C1 and derided capacitors C2,
High voltage electric field between high voltage bus and the earth, which will make wherein to take, to be produced enough energy to power in electric capacity C1.Here
Uac is the output end of draw-out power supply, directly from taking and can obtain electric energy on electric capacity C1.Capacitive divider is used as whole energy taking device
Input, is responsible for obtaining energy from high voltage bus by way of partial pressure of connecting, the energy that rear class electrical equipment is used all from
Energy electric capacity C1 is taken to obtain；Transformer Rectifier Unit be responsible for take can the AC conversion that obtains of electric capacity C1 for needed for voltage class it is straight
Stream electricity, provides relatively stable direct current, is easy to rear class electrical equipment to use after filtering；Here Udc is Transformer Rectifier Unit
Output end, power conversion unit be responsible for Transformer Rectifier Unit treat relatively stable direct current be converted to is suitable for use
The direct current of electric equipment voltage class requirement is simultaneously output to electrical equipment.The present invention ensure that obtained supply voltage is steady
And lasting voltage.
The above-mentioned energy taking device based on capacitive divider can be made further optimization and/or improvements according to actual needs：
As shown in accompanying drawing 1,2, it is described take can electric capacity C1 output end be in series with multiple derided capacitors C2, each derided capacitors C2 according to
Sequence is cascaded.
Here take can electric capacity C1, derided capacitors C2 to Cn be cylindric planar high voltage capacitor, i.e., by two circular flats
Row pole plate and the set of dielectrics that is filled between two-plate are into dielectric should select high pressure, the material that partial discharge is low, dielectric constant is moderate
Material.
As shown in accompanying drawing 1,2, the Transformer Rectifier Unit include transformer and rectifier bridge Dl, the transformer inputs with
Draw-out power supply output end is electrically connected, and piezo-resistance RV1, the rectification are parallel with draw-out power supply output end and transformer primary side
Bridge Dl input is electrically connected with the output end of transformer, and the direct current of parallel connection is electrically connected with the output end of the rectifier bridge Dl
Hold C4 and voltage-stabiliser tube VD1.
The effect of Transformer Rectifier Unit is will to take the AC conversion of energy electric capacity C1 outputs for needed in capacitive divider
Relatively stable direct current is provided after the direct current of voltage class, filtering, is easy to rear class electrical equipment to use.Here transformer
Power frequency reducing transformer Tl can be used, Transformer Rectifier Unit is mainly made up of power frequency reducing transformer Tl and rectifier bridge Dl, but is not limited to
This.Because power frequency reducing transformer Tl and its load are mainly emotional resistance, it is connected to humorous in draw-out power supply output end, such power network
Wave frequency rate may cause resonance between capacitive divider and power frequency reducing transformer T1 primary sides, therefore in the output for taking energy electric capacity
End and piezo-resistance RV1 in parallel between power frequency reducing transformer T1 primary side.In normally operation inch, piezo-resistance RVl leakage currents
It is minimum, in high-impedance state；When power frequency reducing transformer T1 first side windings occur abnormal over-pressed, the overvoltage of generation makes piezo-resistance
Action is short-circuit by power frequency reducing transformer T1 first side windings rapidly by RVl so that device power-off is so as to be protected.Resonance phenomena disappears
Afterwards, piezo-resistance RVl reverts to high-impedance state, and device can normal operation input again automatically.Transformer Rectifier Unit can also be
Rectifier bridge Dl output end is connected with DC capacitor Cl and voltage-stabiliser tube VD1, and DC capacitor Cl should select Large Copacity, so as to strengthen
Its energy storage filter capacity, and mitigate causes voltage Uac to fluctuate brought influence because of the change of load impedance.
As shown in accompanying drawing 1,3, the rectifier bridge D1 includes the commutation diode of four encapsulation, two of which commutation diode
Positive pole be joined together to form positive output end, the negative pole of two other commutation diode is joined together to form negative output terminal.
Here rectifier bridge D1 positive output end is electrically connected with equipotentiality voltage, and rectifier bridge D1 negative output terminal is electrically connected with DC capacitor C4.
As shown in accompanying drawing 1,4, the power conversion unit includes DC voltage-stabilizing module, the output of the DC voltage-stabilizing module
End is parallel with filter capacitor C3.Here Udc is the input of power conversion unit, and Udc is converted into supplying after DC voltage-stabilizing
The direct current of the voltage class of electrical equipment, then after filtering after electric capacity C3 filtering, output provides electricity to electrical equipment for it
Source.
As shown in accompanying drawing 1,4, the DC voltage-stabilizing module is DC-DC power module；Or/and, the DC voltage-stabilizing module
For low-dropout regulator.
As needed, the capacitive divider is ceramic condenser divider.
Embodiment 2：A kind of seal of energy taking device of use based on capacitive divider includes insulator, the electric capacity
Divider is arranged on interior insulator.
Here energy electric capacity C1 and derided capacitors C2 to derided capacitors Cn is taken to can be installed within the column designed with full skirt
In insulator, fully reducing device volume makes its entirety to be built within insulator, reduces cost, lifts service life.This
Invention has small volume, and lightweight, cost is low, long lifespan, the features such as security is good.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can basis
The non-essential technical characteristic of increase and decrease is actually needed, to meet the demand of different situations.
Claims (10)
1. a kind of energy taking device based on capacitive divider, it is characterised in that including high voltage bus, capacitive divider, Transformer Rectifier
Unit and power conversion unit, the outside of the capacitive divider are provided with insulation crust, and the capacitive divider includes being series at
Energy electric capacity and derided capacitors are taken between high voltage bus and the earth, the input for taking energy electric capacity is connected electrically in high voltage bus
On, take the output end of energy electric capacity to be electrically connected with derided capacitors input, the output head grounding of the derided capacitors can electric capacity taking
Input and output end on be electrically connected with draw-out power supply lead, the input and draw-out power supply of the Transformer Rectifier Unit are defeated
Go out end electrical connection, the output end of Transformer Rectifier Unit is electrically connected with the input of power conversion unit.
2. the energy taking device according to claim 1 based on capacitive divider, it is characterised in that described to take the defeated of energy electric capacity
Go out end and be in series with multiple derided capacitors, each derided capacitors is sequentially cascaded.
3. the energy taking device according to claim 1 or 2 based on capacitive divider, it is characterised in that the Transformer Rectifier list
Member includes transformer and rectifier bridge, and the transformer inputs are electrically connected with draw-out power supply output end, in draw-out power supply output end
Piezo-resistance is parallel with transformer primary side, the input of the rectifier bridge is electrically connected with the output end of transformer, described whole
The DC capacitor and voltage-stabiliser tube of parallel connection are electrically connected with the output end for flowing bridge.
4. the energy taking device according to claim 3 based on capacitive divider, it is characterised in that the rectifier bridge includes four
The commutation diode of individual encapsulation, the positive pole of two of which commutation diode is joined together to form positive output end, and two other is whole
The negative pole of stream diode is joined together to form negative output terminal.
5. the energy taking device based on capacitive divider according to claim 1 or 2 or 4, it is characterised in that the power supply becomes
Changing unit includes DC voltage-stabilizing module, and the output end of DC voltage-stabilizing module is parallel with filter capacitor.
6. the energy taking device according to claim 3 based on capacitive divider, it is characterised in that the power conversion unit
Including DC voltage-stabilizing module, the output end of DC voltage-stabilizing module is parallel with filter capacitor.
7. the energy taking device according to claim 5 based on capacitive divider, it is characterised in that the DC voltage-stabilizing module
For DC-DC power module；Or/and, the DC voltage-stabilizing module is low-dropout regulator.
8. the energy taking device according to claim 6 based on capacitive divider, it is characterised in that the DC voltage-stabilizing module
For DC-DC power module；Or/and, the DC voltage-stabilizing module is low-dropout regulator.
9. the energy taking device based on capacitive divider according to claim 1 or 2 or 4 or 6 or 7 or 8, it is characterised in that institute
Capacitive divider is stated for ceramic condenser divider.
10. a kind of seal using the energy taking device based on capacitive divider as described in any one of claim 1 to 9, its
It is characterised by including insulator, the capacitive divider is arranged on interior insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296532.8A CN107040144A (en) | 2017-04-28 | 2017-04-28 | Energy taking device and seal based on capacitive divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296532.8A CN107040144A (en) | 2017-04-28 | 2017-04-28 | Energy taking device and seal based on capacitive divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107040144A true CN107040144A (en) | 2017-08-11 |
Family
ID=59537325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710296532.8A Withdrawn CN107040144A (en) | 2017-04-28 | 2017-04-28 | Energy taking device and seal based on capacitive divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107040144A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473241A (en) * | 2018-12-21 | 2019-03-15 | 云南电网有限责任公司电力科学研究院 | A kind of insulator having function of supplying power |
| EP3578998A1 (en) * | 2018-06-08 | 2019-12-11 | 3M Innovative Properties Company | Impedance assembly |
| CN112236681A (en) * | 2018-06-08 | 2021-01-15 | 3M创新有限公司 | Impedance assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202424548U (en) * | 2011-12-12 | 2012-09-05 | 中国电力科学研究院 | Energy obtaining unit and passive high voltage on-line monitoring device |
| CN202634316U (en) * | 2012-06-04 | 2012-12-26 | 国网电力科学研究院 | Energy taking device based on capacitive voltage divider |
| CN204721106U (en) * | 2015-07-10 | 2015-10-21 | 国家电网公司 | Based on the power transmission line overhead ground wire electromagnetism energy taking device of super capacitor |
| CN206712670U (en) * | 2017-04-28 | 2017-12-05 | 新疆天成鲁源电气工程有限公司 | Energy taking device based on capacitive divider |
-
2017
- 2017-04-28 CN CN201710296532.8A patent/CN107040144A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202424548U (en) * | 2011-12-12 | 2012-09-05 | 中国电力科学研究院 | Energy obtaining unit and passive high voltage on-line monitoring device |
| CN202634316U (en) * | 2012-06-04 | 2012-12-26 | 国网电力科学研究院 | Energy taking device based on capacitive voltage divider |
| CN204721106U (en) * | 2015-07-10 | 2015-10-21 | 国家电网公司 | Based on the power transmission line overhead ground wire electromagnetism energy taking device of super capacitor |
| CN206712670U (en) * | 2017-04-28 | 2017-12-05 | 新疆天成鲁源电气工程有限公司 | Energy taking device based on capacitive divider |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3578998A1 (en) * | 2018-06-08 | 2019-12-11 | 3M Innovative Properties Company | Impedance assembly |
| WO2019234682A1 (en) * | 2018-06-08 | 2019-12-12 | 3M Innovative Properties Company | Impedance assembly |
| CN112236681A (en) * | 2018-06-08 | 2021-01-15 | 3M创新有限公司 | Impedance assembly |
| US11486902B2 (en) | 2018-06-08 | 2022-11-01 | 3M Innovative Properties Company | Impedance assembly |
| CN109473241A (en) * | 2018-12-21 | 2019-03-15 | 云南电网有限责任公司电力科学研究院 | A kind of insulator having function of supplying power |
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Application publication date: 20170811 |