CN109120019A - 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
- Publication number
- CN109120019A CN109120019A CN201811199526.1A CN201811199526A CN109120019A CN 109120019 A CN109120019 A CN 109120019A CN 201811199526 A CN201811199526 A CN 201811199526A CN 109120019 A CN109120019 A CN 109120019A
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- diode
- isolating transformer
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- low pressure
- transmission line
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 35
- 230000005611 electricity Effects 0.000 title claims abstract description 35
- 238000012806 monitoring device Methods 0.000 title claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims abstract description 38
- 239000003985 ceramic capacitor Substances 0.000 claims abstract description 28
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 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
- 230000006837 decompression Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- H02J5/005—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The embodiment of the present application provides a kind of power transmission line monitoring device electricity getting device, including higfh-tension ceramics capacitor, low pressure ceramic capacitor, isolating transformer group, 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；The primary side of isolating transformer group is in parallel with low pressure ceramic capacitor, secondary side and switch power parallel, and isolating transformer group includes multiple isolating transformers, and multiple isolating transformers are in parallel in primary side series connection, secondary side；Switching Power Supply is used to be direct current, load and switch power parallel by AC conversion.The application divides ultra-high-tension power transmission line using higfh-tension ceramics capacitor, low pressure ceramic capacitor, isolating transformer group is constituted by two series connection of isolating transformer primary side, secondary side parallel connections, so that high and low pressure derided capacitors, isolating transformer group reach or approach resonance, improves and take energy efficiency.
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 group, 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 primary side of the isolating transformer group is in parallel with the low pressure ceramic capacitor, and secondary side and the Switching Power Supply are simultaneously
Connection, the isolating transformer group includes multiple isolating transformers, multiple isolating transformers primary side connect, secondary side simultaneously
Connection；
The higfh-tension ceramics capacitor, low pressure ceramic capacitor and isolating transformer group constitute resonance circuit；
The Switching Power Supply is used to AC conversion be direct current, the load and switch power parallel.
Preferably, the isolating transformer group includes the first isolating transformer and the second isolating transformer.
The preferably described power transmission line monitoring device electricity getting device includes higfh-tension ceramics capacitor described in three groups, low pressure ceramic electricity
Hold, isolating transformer group, Switching Power Supply, higfh-tension ceramics capacitor, low pressure ceramic capacitor described in three groups, isolating transformer group, switch
Power supply is connected in the triple line of ultra-high-tension power transmission line, one end of the load respectively with Switching Power Supply described in three groups just
Pole is sequentially connected electrically, and cathode of the other end of the load respectively with Switching Power Supply described in three groups is sequentially connected electrically.
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；
One end of the isolating transformer group secondary side is connected between the first diode and the second diode, and with
The anode connection of the first diode；
The other end of the isolating transformer group 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.
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 group, Switching Power Supply and load, pass through higfh-tension ceramics capacitor, low pressure ceramic capacitor, isolating transformer group, switch electricity
Source and load divide ultra-high-tension power transmission line, are made up of the series connection of multiple isolating transformer primary sides, secondary side parallel connection
Isolating transformer group promotes high-voltage power transmission device so that high and low pressure derided capacitors, isolating transformer group reach or approach resonance
Take can efficiency.
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 group, 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.The primary side of isolating transformer group is in parallel with low pressure ceramic capacitor 2, and two
Secondary side is in parallel with Switching Power Supply 5, and isolating transformer group includes multiple isolating transformers, and multiple isolating transformers are in primary side string
Connection, secondary side are in parallel.Higfh-tension ceramics capacitor 1, low pressure ceramic capacitor 2 and isolating transformer group constitute resonance circuit.Switching Power Supply 5
For being direct current by AC conversion, load 6 is in parallel with Switching Power Supply 5.
Isolating transformer group includes the first isolating transformer 3 and the second isolating transformer 4.Switching Power Supply 5 includes the one or two
Pole pipe 7, the second diode 8, third diode 9, the 4th diode 10, conversion capacitor 11 and conversion inductance 12.First diode
7, the second diode 8 is connected, third diode 9, the series connection of the 4th diode 10, the cathode of first diode 7, third diode 9
Connection, the anode connection of the second diode 8, the 4th diode 10, cathode and conversion capacitor 11, the conversion electricity of third diode 9
Feel the anode connection of the 12, the 4th diode 10.One end of isolating transformer group secondary side is connected to first diode 7 and the two or two
Between pole pipe 8, and it is connect with the anode of first diode 7.The other end of isolating transformer group secondary side is connected to the three or two pole
Between pipe 9, the 4th diode 10, and it is connect with the cathode of the 4th diode 10.Load 6 is in parallel with conversion capacitor 11.
The embodiment of the present application working principle are as follows: higfh-tension ceramics capacitor 1 and low pressure ceramic capacitor 2 are to the electricity on transmission line of electricity H
Pressure is once divided and is taken energy, then carries out secondary decompression by isolating transformer group, is carried out alternating current-direct current by Switching Power Supply 5 and is turned
Stable DC energy is provided for load 6 after changing, is once connected in device by two identical isolating transformers, secondary composition in parallel
Isolating transformer group makes higfh-tension ceramics capacitor 1, low pressure ceramic capacitor 2, isolating transformer 3 and isolating transformer 4 close or reaches
To condition of resonance, maximum electric energy can be provided for load 6.
It referring to fig. 2, is the schematic equivalent circuit of Fig. 1, in Fig. 2, C1, C2 are derided capacitors, in isolating transformer 3, R1,
L1 is first winding resistance and leakage inductance, and R2, L2 are secondary winding resistance and leakage inductance, and Rm, Lm are excitation winding resistance and inductance；Every
From in transformer 4, R3, L3 are first winding resistance and leakage inductance, and R4, L4 are secondary winding resistance and leakage inductance, Rn, Ln be excitation around
Group resistance and inductance, R are load.The simple equivalent circuit figure for being Fig. 3 by the further abbreviation of Fig. 2, wherein R5=R1+R2, L5=
L1+L2 is 3 short-circuit resistance of isolating transformer and short-circuit reactance, and R6=R3+R4, L6=L3+L4 are 4 short-circuit resistance of isolating transformer
And short-circuit reactance.The power of Resonance Equation and load R is derived below:
Capacitor C1, C2 and inductance L1, L2, L3, L4 Resonance Equation are as follows:
Enable Z1=R5+jωL5 (1)
It can be in the hope of the power on load R by above formula (1)-(6).
Referring to table 1, the isolating transformer group measured for the embodiment of the present application and the relation table for taking energy power:
Table 1
| Isolation becomes no-load voltage ratio | 220/12 | 330/18 | 440/24 | 550/30 |
| Taking under single isolating transformer can power/W | 0.55 | 0.43 | 0.41 | 0.41 |
| Taking under isolating transformer group can power/W | 0.81 | 0.53 | 0.48 | 0.46 |
When one timing of derided capacitors value, C1 2nF, C2 40nF, 3 capacity of isolating transformer is 50VA, adjusts isolation and becomes
No-load voltage ratio is measured the power of load 6, can be obtained: be adopted according to table 1 by another series connection, secondary same separation transformer 4 in parallel
Take electrical efficiency bigger with isolating transformer group.
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
Group, Switching Power Supply 5, three groups of higfh-tension ceramics capacitors 1, low pressure ceramic capacitor 2, isolating transformer group, Switching Power Supply 5 are connected to
On the A phase, B phase, C phase line of ultra-high-tension power transmission line, loads the anode of 6 one end respectively with three groups of Switching Power Supplies 5 and is sequentially connected electrically,
Cathode of the other end of load 6 respectively with three groups of Switching Power Supplies 5 is sequentially connected electrically.Its working principle is similar to Fig. 1-Fig. 3, herein
It repeats no more.
As seen from the above-described embodiment, power transmission line monitoring device electricity getting device provided by the embodiments of the present application, passes through two
Same separation transformer is in parallel in primary side series connection, secondary side, constitutes isolating transformer group, makes pottery with higfh-tension ceramics capacitor 1, low pressure
Porcelain capacitor 2, isolating transformer 3 and isolating transformer 4 are close to or up to condition of resonance, can provide maximum electric energy for load 6.
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 group, 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)；
The primary side of the isolating transformer group is in parallel with low pressure ceramic capacitor (2), secondary side and the Switching Power Supply (5)
Parallel connection, the isolating transformer group include multiple isolating transformers, and multiple isolating transformers are in primary side series connection, secondary side
It is in parallel；
The higfh-tension ceramics capacitor (1), low pressure ceramic capacitor (2) and isolating transformer group constitute resonance circuit；
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 isolating transformer group packet
Include the first isolating transformer (3) and the second isolating transformer (4).
3. 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 group, Switching Power Supply described in three groups
(5), higfh-tension ceramics capacitor (1), low pressure ceramic capacitor (2) described in three groups, isolating transformer group, Switching Power Supply (5) are separately connected
In the triple line of ultra-high-tension power transmission line, it is described load (6) one end respectively with Switching Power Supply (5) described in three groups anode successively
Electrical connection, cathode of the other end of the load (6) respectively with Switching Power Supply (5) described in three groups are sequentially connected electrically.
4. 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)；
One end of the isolating transformer group secondary side is connected between the first diode (7) and the second diode (8), and
It is connect with the anode of the first diode (7)；
The other end of the isolating transformer group secondary side is connected between the third diode (9), the 4th diode (10),
And it is connect with the cathode of the 4th diode (10)；
The load (6) is in parallel with conversion capacitor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199526.1A CN109120019A (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 |
|---|---|---|---|
| CN201811199526.1A CN109120019A (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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| CN109120019A true CN109120019A (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811199526.1A Pending CN109120019A (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 |
|---|---|---|---|---|
| CN112968617A (en) * | 2021-02-02 | 2021-06-15 | 国网湖北省电力有限公司随州供电公司 | Power supply circuit for alternating-current transmission line on-line monitoring device |
| 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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| CN2607691Y (en) * | 2003-03-03 | 2004-03-24 | 昆明供电段职工技协技术服务部 | Low power taking and carrier loader for power system |
| CN206226127U (en) * | 2016-11-11 | 2017-06-06 | 国网天津市电力公司 | A kind of Novel switch cabinet electricity getting device |
| CN206281889U (en) * | 2016-12-26 | 2017-06-27 | 云南电网有限责任公司电力科学研究院 | A kind of electricity getting device based on ceramic condenser insulator |
| US20170315159A1 (en) * | 2015-02-26 | 2017-11-02 | Murata Manufacturing Co., Ltd. | Voltage detection circuit, power transmission device, and power transmission system |
-
2018
- 2018-10-15 CN CN201811199526.1A patent/CN109120019A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2607691Y (en) * | 2003-03-03 | 2004-03-24 | 昆明供电段职工技协技术服务部 | Low power taking and carrier loader for power system |
| US20170315159A1 (en) * | 2015-02-26 | 2017-11-02 | Murata Manufacturing Co., Ltd. | Voltage detection circuit, power transmission device, and power transmission system |
| CN206226127U (en) * | 2016-11-11 | 2017-06-06 | 国网天津市电力公司 | A kind of Novel switch cabinet electricity getting device |
| CN206281889U (en) * | 2016-12-26 | 2017-06-27 | 云南电网有限责任公司电力科学研究院 | A kind of electricity getting device based on ceramic condenser insulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968617A (en) * | 2021-02-02 | 2021-06-15 | 国网湖北省电力有限公司随州供电公司 | Power supply circuit for alternating-current transmission line on-line monitoring device |
| 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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