CN109193822A - A kind of power transmission line monitoring device electricity getting device - Google Patents
A kind of power transmission line monitoring device electricity getting device Download PDFInfo
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- CN109193822A CN109193822A CN201811199534.6A CN201811199534A CN109193822A CN 109193822 A CN109193822 A CN 109193822A CN 201811199534 A CN201811199534 A CN 201811199534A CN 109193822 A CN109193822 A CN 109193822A
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- 230000005611 electricity Effects 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
- 238000012806 monitoring device Methods 0.000 title claims abstract description 27
- 239000003990 capacitor Substances 0.000 claims abstract description 40
- 239000003985 ceramic capacitor Substances 0.000 claims abstract description 32
- 239000000919 ceramic Substances 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000004804 winding Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
This application provides a kind of power transmission line monitoring device electricity getting devices, the electricity getting device includes higfh-tension ceramics capacitor, low pressure ceramic capacitor, isolating transformer, tuning coil, Switching Power Supply and load, wherein, one end of higfh-tension ceramics capacitor is electrically connected with high voltage transmission line, the other end is connect with one end of low pressure ceramic capacitor, the other end ground connection of low pressure ceramic capacitor；Isolating transformer primary side is in parallel with low pressure ceramic capacitor, after secondary side series tuning inductance with switch power parallel；Tuning coil and higfh-tension ceramics capacitor, low pressure ceramic capacitor and isolating transformer constitute resonance circuit；Switching Power Supply is used to be direct current, load and switch power parallel by AC conversion.Power transmission line monitoring device electricity getting device provided by the present application, resonance circuit, which is constituted, using tuning coil and higfh-tension ceramics capacitor, low pressure ceramic capacitor and isolating transformer takes electricity from ultra-high-tension power transmission line, and by being load supplying after Switching Power Supply progress AC-DC conversion, power supply efficiency is high.
Description
Technical field
This application involves power technique fields more particularly to a kind of power transmission line monitoring device electricity getting devices.
Background technique
In recent years, the scale of distribution is more and more huger, and grid structure becomes increasingly complex, this is to distribution network electric energy quality and power supply
Reliability etc. proposes increasingly higher demands.Carrying out over-voltage monitoring to distribution is control power quality and power supply reliability
Important means.The research in distribution over-voltage monitoring field is limited in substation more at present, using monitoring device from substation
Inside electricity is taken to be monitored.
The monitoring of transmission line of electricity overvoltage is also the important link of distribution over-voltage monitoring, but due to electric power line pole tower
Nearby directly monitoring device can be powered there is no suitable and ready-made power supply, therefore be directed to the prison of transmission line of electricity overvoltage
Surveying problem to be solved first is that monitoring device is powered this problem.
Currently, having solar energy-battery hybrid power supply, laser powered sensor, electric current mutual the major way of monitoring device power supply
Sensor power supply etc..Solar energy-storage battery power supply is mainly limited by weather, service life and operation expense；Laser powered sensor
Mainly influenced by output power, cost and service life；Current transformer power supply is influenced by power network current, from transmission line of electricity
The electric energy of upper acquirement is difficult to be transported on shaft tower, it is seen then that power supply unit in the prior art is difficult to meet transmission line of electricity monitoring
Device takes electricity demanding.
Summary of the invention
This application provides a kind of power transmission line monitoring device electricity getting devices, take Denso to solve power transmission line monitoring device
Set the problem for taking electric inconvenience.
This application provides a kind of power transmission line monitoring device electricity getting device, the electricity getting device include higfh-tension ceramics capacitor,
Low pressure ceramic capacitor, isolating transformer, tuning coil, Switching Power Supply and load, wherein
One end of the higfh-tension ceramics capacitor is electrically connected with high voltage transmission line, and the one of the other end and the low pressure ceramic capacitor
End connection, the other end ground connection of the low pressure ceramic capacitor；
The isolating transformer primary side is in parallel with low pressure ceramic capacitor, secondary side connect after the tuning coil with it is described
Switch power parallel；
The tuning coil and higfh-tension ceramics capacitor, low pressure ceramic capacitor and isolating transformer constitute resonance circuit；
The Switching Power Supply is used to AC conversion be direct current, the load and switch power parallel.
Preferably, the power transmission line monitoring device electricity getting device includes higfh-tension ceramics capacitor, low pressure ceramic described in three groups
Capacitor, isolating transformer, tuning coil, Switching Power Supply, higfh-tension ceramics capacitor, low pressure ceramic capacitor described in three groups, isolation transformation
Device, tuning coil, Switching Power Supply are connected in the triple line of ultra-high-tension power transmission line, one end of the load respectively with three groups
The anode of the Switching Power Supply is sequentially connected electrically, the other end of the load respectively with the cathode of Switching Power Supply described in three groups successively
Electrical connection.
Preferably, the Switching Power Supply includes first diode, the second diode, third diode, the 4th diode, turns
Change capacitor and conversion inductance, wherein
The first diode, the second Diode series, the third diode, the 4th Diode series, described first
The cathode connection of diode, third diode, the anode connection of second diode, the 4th diode, the three or two pole
The cathode of pipe is connect with the anode of the conversion capacitor, conversion inductance, the 4th diode；
Described tuning coil one end is connect with one end of the isolating transformer secondary side, and the tuning coil other end connects
It connects between the first diode and the second diode, and is connect with the anode of the first diode；
The other end of the isolating transformer secondary side is connected between the third diode, the 4th diode, and
It is connect with the cathode of the 4th diode；
The load is in parallel with the conversion capacitor.
Preferably, the tuning coil is adjustable inductance.
The beneficial effect of power transmission line monitoring device electricity getting device provided by the present application includes:
Power transmission line monitoring device electricity getting device provided by the present application, including higfh-tension ceramics capacitor, low pressure ceramic capacitor, every
From transformer, tuning coil, Switching Power Supply and load.By higfh-tension ceramics capacitor and low pressure ceramic capacitor to high voltage transmission line
The voltage of road is once divided and is taken energy, then carries out secondary decompression by isolating transformer, is handed over by Switching Power Supply
Direct current conversion after for load stable DC energy is provided, by selection tuning coil inductance value make higfh-tension ceramics capacitor,
Low pressure ceramic capacitor, isolating transformer, tuning coil reach condition of resonance, can provide maximum electric energy for load.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of power transmission line monitoring device electricity getting device provided by the embodiments of the present application；
Fig. 2 is the schematic equivalent circuit of Fig. 1；
Fig. 3 is the simple equivalent circuit schematic diagram of Fig. 2；
Fig. 4 is a kind of structural schematic diagram of three phase line monitoring device electricity getting device provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the common skill in this field
The application protection all should belong in art personnel every other embodiment obtained without making creative work
Range.
It is a kind of structural schematic diagram of power transmission line monitoring device electricity getting device provided by the embodiments of the present application referring to Fig. 1,
As shown in Figure 1, the structural schematic diagram of power transmission line monitoring device electricity getting device provided by the embodiments of the present application, including higfh-tension ceramics
Capacitor 1, low pressure ceramic capacitor 2, isolating transformer 3, tuning coil 4, Switching Power Supply 5 and load 6.
Specifically, one end of higfh-tension ceramics capacitor 1 is electrically connected with high voltage transmission line H, the other end and low pressure ceramic capacitor 2
One end connection, the other end ground connection of low pressure ceramic capacitor 2,3 primary side of isolating transformer is in parallel with low pressure ceramic capacitor 2, secondary
It is in parallel with Switching Power Supply 5 after side series tuning inductance 4, tuning coil 4 and higfh-tension ceramics capacitor 1, low pressure ceramic capacitor 2 and it is isolated
Transformer 3 constitutes resonance circuit, and Switching Power Supply 5 is used to be direct current by AC conversion, and load 6 is in parallel with Switching Power Supply 5.
Switching Power Supply 5 includes first diode 7, the second diode 8, third diode 9, the 4th diode 10, conversion electricity
Hold 11 and conversion inductance 12.First diode 7, the series connection of the second diode 8, third diode 9, the series connection of the 4th diode 10, the
The cathode connection of one diode 7, third diode 9, the anode connection of the second diode 8, the 4th diode 10, third diode
9 cathode is connect with the anode of conversion capacitor 11, conversion inductance 12, the 4th diode 10.4 one end of tuning coil with transformation is isolated
One end of 3 secondary side of device connects, and 4 other end of tuning coil is connected between first diode 7 and the second diode 8, and with the
The anode connection of one diode 7.The other end of 3 secondary side of isolating transformer be connected to third diode 9, the 4th diode 10 it
Between, and connect with the cathode of the 4th diode 10.Load 6 is in parallel with conversion capacitor 11.
In the embodiment of the present application, tuning coil 4 is adjustable inductance.By adjusting the size of tuning coil 4, so that high
Pressure ceramic condenser 1, low pressure ceramic capacitor 2, isolating transformer 3, tuning coil 4 reach condition of resonance, can provide most for load 6
Big electric energy.
The embodiment of the present application working principle are as follows: higfh-tension ceramics capacitor 1 and low pressure ceramic capacitor 2 are on ultra-high-tension power transmission line H
Voltage once divided and taken can, then secondary decompression is carried out by isolating transformer 3, hand over by Switching Power Supply 5 straight
Circulation for load 6 provides stable DC energy after changing, the inductance value by choosing tuning coil 4 make higfh-tension ceramics capacitor 1,
Low pressure ceramic capacitor 2, isolating transformer 3, tuning coil 4 reach condition of resonance, can provide maximum electric energy for load 6.
It referring to fig. 2, is the schematic equivalent circuit of Fig. 1, in Fig. 2, C1、C2For derided capacitors, R1、L1For isolating transformer 3
First winding resistance and leakage inductance, R2、L2For 3 secondary winding resistance of isolating transformer and leakage inductance, Rm、LmFor excitation winding resistance and
Inductance, L are tuning coil 4, and R is load 6.
By the further abbreviation of Fig. 2, Fig. 3 is obtained, is the simple equivalent circuit schematic diagram of Fig. 2, in Fig. 3, R0=R1+R2、L0=
L1+L2, R0For short-circuit resistance, L0For short-circuit reactance.The power of Resonance Equation and load R is derived below:
Enable ZR=R0+R+jω(L+L0)=Rk+jωLk,
It can be seen that inductance L, L from the formula of Z1、L2With capacitor C1、C2Resonance Equation are as follows:
1-ω2Lk(C1+C2)=0
I.e.
In above formula, derided capacitors C1、C2It is known that short-circuit reactance (L1+L2) can be found out by short-circuit test, therefore resonance
Shi Suoxu inductance L can be found out by above formula.
Capacitor C2On voltage are as follows:
Load the electric current on R:
When circuit resonance,
Load the power on R are as follows:
In above formula, line voltage distribution U, derided capacitors C1、C2It is known that short-circuit resistance (R1+R2) can be found out by short-circuit test, lead to
It crosses and selects suitable resistance, available maximum output power.
It is that the inductance value for the tuning coil 4 that the embodiment of the present application measures takes the relation tables of energy power with load 6 referring to table 1:
Table 1
| Inductance value/H | 0 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| Power/W | 0.42 | 1.08 | 1.51 | 1.96 | 2.25 | 2.1 | 1.82 | 1.41 | 1.1 |
As one timing of derided capacitors value, C1For 2nF, C2For 40nF, 3 capacity of isolating transformer is 5VA, no-load voltage ratio 220/12,
By changing inductance value L, the power of load 6 is measured, can be obtained after series tuning inductance 4 according to table 1 than taking electrical efficiency when not connecting
It is bigger, and there are an inductance values (being 0.5 in the present embodiment) to take electrical efficiency maximum.
Fig. 4 is a kind of structural schematic diagram of three phase line monitoring device electricity getting device provided by the embodiments of the present application,
In Fig. 4, power transmission line monitoring device electricity getting device includes three groups of higfh-tension ceramics capacitors 1, low pressure ceramic capacitor 2, isolating transformer
3, tuning coil 4, Switching Power Supply 5, three groups of higfh-tension ceramics capacitors 1, low pressure ceramic capacitor 2, isolating transformer 3, tuning coil 4,
Switching Power Supply 5 is connected on the A phase, B phase, C phase line of ultra-high-tension power transmission line, load 6 one end respectively with three groups of switches electricity
The anode in source 5 is sequentially connected electrically, and is loaded the cathode of 6 other end respectively with three groups of Switching Power Supplies 5 and is sequentially connected electrically, work is former
Reason is similar to Fig. 1-Fig. 3, and details are not described herein.
As seen from the above-described embodiment, power transmission line monitoring device electricity getting device provided by the embodiments of the present application, by reasonable
The inductance value of secondary side tuning coil is selected, so that higfh-tension ceramics capacitor, low pressure ceramic capacitor, isolating transformer and tuning electricity
Sense cooperation reaches condition of resonance, and improving taking for high-voltage power transmission device can efficiency.
Since embodiment of above is that reference combination is illustrated on other modes, have between different embodiments
There is identical part, identical, similar part may refer to each other between each embodiment in this specification.Herein no longer in detail
It illustrates.
It should be noted that in the present specification, the relational terms of such as " first " and " second " or the like are used merely to
It distinguishes one entity or operation from another entity or operation, and not necessarily requires or imply these entities or operation
Between there are any this actual relationship or sequences.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the circuit structure, article or the equipment that include a series of elements not only include those
Element, but also including other elements that are not explicitly listed, or further include for this circuit structure, article or equipment
Intrinsic element.In the absence of more restrictions, the element for thering is sentence "including a ..." to limit, it is not excluded that
There is also other identical elements in circuit structure, article or equipment including the element.
Those skilled in the art will readily occur to its of the application after considering specification and practicing the disclosure invented here
His embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are wanted by right
The content asked is pointed out.
Above-described the application embodiment does not constitute the restriction to the application protection scope.
Claims (4)
1. a kind of power transmission line monitoring device electricity getting device, which is characterized in that including higfh-tension ceramics capacitor (1), low pressure ceramic electricity
Hold (2), isolating transformer (3), tuning coil (4), Switching Power Supply (5) and load (6), wherein
One end of the higfh-tension ceramics capacitor (1) is electrically connected with high voltage transmission line, the other end and the low pressure ceramic capacitor (2)
One end connection, the other end ground connection of the low pressure ceramic capacitor (2)；
Isolating transformer (3) primary side is in parallel with low pressure ceramic capacitor (2), and secondary side is connected after the tuning coil (4)
It is in parallel with the Switching Power Supply (5)；
The tuning coil (4) and higfh-tension ceramics capacitor (1), low pressure ceramic capacitor (2) and isolating transformer (3) constitute resonance electricity
Road；
The Switching Power Supply (5) is used to AC conversion be direct current, and the load (6) is in parallel with Switching Power Supply (5).
2. power transmission line monitoring device electricity getting device as described in claim 1, which is characterized in that the transmission line of electricity monitoring dress
Setting electricity getting device includes higfh-tension ceramics capacitor (1), low pressure ceramic capacitor (2), isolating transformer (3), tuning coil described in three groups
(4), Switching Power Supply (5), higfh-tension ceramics capacitor (1), low pressure ceramic capacitor (2) described in three groups, isolating transformer (3), tuning electricity
Sense (4), Switching Power Supply (5) are connected in the triple line of ultra-high-tension power transmission line, one end of the load (6) respectively with three groups
The anode of the Switching Power Supply (5) is sequentially connected electrically, it is described load (6) the other end respectively with Switching Power Supply (5) described in three groups
Cathode be sequentially connected electrically.
3. power transmission line monitoring device electricity getting device as described in claim 1, which is characterized in that Switching Power Supply (5) packet
It includes first diode (7), the second diode (8), third diode (9), the 4th diode (10), conversion capacitor (11) and converts
Inductance (12), wherein
The first diode (7), the second diode (8) series connection, the third diode (9), the series connection of the 4th diode (10),
The cathode connection of the first diode (7), third diode (9), second diode (8), the 4th diode (10)
Anode connection, the cathode of the third diode (9) and the conversion capacitor (11), conversion inductance (12), the four or two pole
Manage the anode connection of (10)；
Described tuning coil (4) one end is connect with one end of the isolating transformer (3) secondary side, and the tuning coil (4) is another
One end is connected between the first diode (7) and the second diode (8), and even with the anode of the first diode (7)
It connects；
The other end of isolating transformer (3) secondary side be connected to the third diode (9), the 4th diode (10) it
Between, and connect with the cathode of the 4th diode (10)；
The load (6) is in parallel with conversion capacitor (11).
4. power transmission line monitoring device electricity getting device as described in claim 1, which is characterized in that the tuning coil (4) is
Adjustable inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199534.6A CN109193822A (en) | 2018-10-15 | 2018-10-15 | A kind of power transmission line monitoring device electricity getting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199534.6A CN109193822A (en) | 2018-10-15 | 2018-10-15 | A kind of power transmission line monitoring device electricity getting device |
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| Publication Number | Publication Date |
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| CN109193822A true CN109193822A (en) | 2019-01-11 |
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| CN201811199534.6A Pending CN109193822A (en) | 2018-10-15 | 2018-10-15 | A kind of power transmission line monitoring device electricity getting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473739A (en) * | 2019-08-19 | 2019-11-19 | 陕西省地方电力(集团)有限公司延安供电分公司 | A kind of novel one or two fusions vacuum circuit breaker polar |
| CN114337323A (en) * | 2021-12-30 | 2022-04-12 | 广东电网有限责任公司 | Get electric installation and electric power shaft tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114337323A (en) * | 2021-12-30 | 2022-04-12 | 广东电网有限责任公司 | Get electric installation and electric power shaft tower |
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Application publication date: 20190111 |