CN106229930B - A kind of DC power transmission line conductor ice prevention and static passive compensation device - Google Patents
A kind of DC power transmission line conductor ice prevention and static passive compensation device Download PDFInfo
- Publication number
- CN106229930B CN106229930B CN201610829559.4A CN201610829559A CN106229930B CN 106229930 B CN106229930 B CN 106229930B CN 201610829559 A CN201610829559 A CN 201610829559A CN 106229930 B CN106229930 B CN 106229930B
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- Prior art keywords
- disconnecting switch
- transmission line
- full
- pass filter
- ice
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses a kind of DC power transmission line conductor ice prevention and static passive compensation devices, it is characterised in that: including deicing device, the first high-pass filter, the second high-pass filter；The both ends of transmission line of alternation current AB sections for needing ice-melt are respectively side a and b；First high-pass filter is set to transmission line of alternation current AB sections of the end B for needing ice-melt；Second high-pass filter is set to transmission line of alternation current AB sections of the end A output point for needing ice-melt；Deicing device is between the end A input point and the second high-pass filter；Deicing device includes three-phase alternating-current supply, full-bridge rectification module, storage capacitor C0, full-bridge inverting module, series resonance unit, high frequency transformer T, inductance C.The present invention realizes the anti-icing of HVDC transmission line conducting wire without having a power failure, and avoids because of economic loss caused by having a power failure, reduces personnel's operational hazards degree.The cost of installation and maintenance for reducing high frequency electric source, has been obviously improved reliability and stability.
Description
Technical field
The present invention relates to field of power systems, are related to a kind of high-voltage AC transmission line anti-icing technology.It particularly relates to one
Kind DC power transmission line conductor ice prevention and static passive compensation device and combinations thereof.
Background technique
In winter under rain and snow weather, consecutive low temperature sleet and snow ice will cause the winter icing phenomenon of transmission line of electricity.Field
Ultra-high-tension power transmission line icing easily causes various mechanical accidents and electrical hazard.Therefore how to prevent field ultra-high-tension power transmission line icing
It is the great difficult problem of electric system.Current mainstream anti-icing method is thermal ice-melting method, and principle is by increasing transmission line of electricity
In electric current or current density, or increase the equivalent resistance of transmission pressure, or increase current in wire and conductor resistance simultaneously, make defeated
Electric lead self-heating, to melt the icing above conducting wire.It mainly include short circuit current ice-melt, high frequency pumping ice-melt, direct current
Electric current ice-melt, trend dispatch ice-melt.Wherein, power transmission line is being implemented in short circuit current ice-melt, DC current ice-melt, trend scheduling ice-melt
When the ice-melt of road, the 4-8 hour that need to have a power failure/time, there is very big negative shadow in power supply quality and economic benefit to electric system
It rings.The selected position that is anti-icing, but needing deicing route and although the high frequency pumping ice-melt based on skin effect may be implemented not having a power failure
Set the midpoint installation high frequency electric source of i.e. route；Trapper is installed at the both ends of route, to control the sphere of action of high-frequency current.And
Most of areas that ultra-high-tension power transmission line passes through are the bad environments such as forest, mountain area, lake remote districts, the geography at route midpoint
Position is unfavorable for the construction of deicing device, and staff needs operation and the maintenance of capable of just entering the station of trudging.In addition, high frequency electric source
The semiconductor power devices such as IGBT, MOSFET are mostly used to form power supply core switching in series and parallel, these semiconductor switch prices are high
It is expensive, increase the construction cost of device.How to overcome the above problem is the direction that those skilled in the art need to study.
Summary of the invention
To solve the above problems, the invention proposes be based on semiconductor power device-reverse switch transistor
A kind of anti-icing simultaneous static reactive of New DC transmission line conductor of (Reservely Switched Dynistor, RSD)
Device.
In order to reach the purpose of the present invention, technical solution is as follows:
A kind of DC power transmission line conductor ice prevention and static passive compensation device, including deicing device, first filter and
Second filter；The solid conductor of transmission line of alternation current AB sections for needing ice-melt, referred to as ice-melt section AB, both ends are respectively
Side a and b；The first filter includes disconnecting switch K4 and the first high-pass filter, and one end of the first high-pass filter connects
One end of disconnecting switch K4 is connect, the other end ground connection of the first high-pass filter, one end of disconnecting switch K4 connects the filter of the first high pass
One end of wave device, the end B of the other end connection ice-melt section AB of disconnecting switch K4；The second filter include disconnecting switch K3 and
Second high-pass filter, the second high-pass filter one end connection disconnecting switch K3 one end, the second high-pass filter it is another
End ground connection, one end of disconnecting switch K3 connect one end of the second high-pass filter, and the other end of disconnecting switch K3 connects ice-melt section
The end the A output point of AB；The deicing device include inductance L1, three-phase alternating-current supply P1, disconnecting switch K1, full-bridge rectification module,
Storage capacitor C0, full-bridge inverting module, series resonance unit, high frequency transformer T, capacitor C and disconnecting switch K2；The ice-melt dress
The structure set is as follows: the input terminal of disconnecting switch K1 is connect with the output end of three-phase alternating-current supply P1, the output of disconnecting switch K1
The input terminal of end connection connection thyristor full-bridge rectification module；The input of the output end P1 and storage capacitor C0 of full-bridge rectification module
End and full-bridge inverting module input terminal P3 connection, the output end of the output end P2 and storage capacitor C0 of full-bridge rectification module and entirely
The input terminal P4 connection of bridge inverter module, output end P5, P6 of full-bridge inverting module respectively with series resonance unit input terminal
Two endpoints P7, P8 connection, two endpoints P9, P10 of series resonance unit output end respectively with high frequency transformer T input terminal
The connection of two endpoints, one end of the output end of high frequency transformer T are connect with the input terminal of capacitor C, the output end of transformer T it is another
One end ground connection, the output end of capacitor C are connect with the input terminal of disconnecting switch K2, and the output end of disconnecting switch K2 is with ice-melt section AB's
The input terminal at the end A connects, and the output end of disconnecting switch K2 is connect with the input terminal of inductance L1, the output end of inductance L1 and the second filter
The input terminal of the disconnecting switch K3 of wave device connects, and the input terminal of disconnecting switch K3 is connect with the output point at the end A of ice-melt section AB.
By the closing or opening of K1, K2, K3, K4, it can be achieved that the anti-icing mode and reactive compensation mode of deicing device it
Between conversion.
By using this technical solution: by the closing or opening of each disconnecting switch, realizing the anti-icing mould of deicing device
Formula and DC filtering function；When disconnecting switch K1, K2, K3, K4 are closed, for anti-icing mode.Capacitor C0 passes through full-bridge rectification module
And disconnecting switch K1 obtains electric energy from AC power source P1 and stores DC energy source, C0 passes through full-bridge inverting module, series resonance list
Member, pulse transformer and capacitor C are to needing the single DC wire of deicing to export high-frequency current, capacitor C and AB sections of line inductances
Series resonant circuit is formed, AB sections of non-resistive high-frequency resistance is reduced to and is approximately equal to 0, when the impedance of AB sections of line resistance R
When much smaller than L1, majority of high frequency electric current is returned to by AB section lead, disconnecting switch K2, the first high-pass filter and ground terminal
The ground terminal of transformer T, conductor overheating, to remove conducting wire ice coating.When disconnecting switch K1, K2 disconnects, K3, K4 closure, are straight
Filter patterns are flowed, inductance L1, the first high-pass filter and the second high-pass filter collective effect eliminate the harmonic high frequency of DC line
Wave.
Preferably, in above-mentioned HVDC transmission line conductor ice prevention device: partly leading in the full-bridge rectification module
Body power device is using any one of thyristor, IGBT or IGCT.
Preferably, in above-mentioned HVDC transmission line conductor ice prevention device: partly leading in the full-bridge inverting module
Body power device using thyristor, IGBT, IGCT or reverse switch transistor (Reservely Switched Dynistor,
Any one of RSD).
With two sets or two sets or more (three sets or four sets or five sets) transmission line of alternation current conductor ice prevention and static as described above
Reactive power compensator is respectively installed on two and two of DC power transmission line or more (three or four or five) conducting wires.
Compared with prior art, the present invention realizes the anti-icing of high-voltage power line conductive line without having a power failure, and avoids because having a power failure
Caused by economic loss.The cost of installation and maintenance for reducing high frequency electric source, has been obviously improved reliability and stability.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention, wherein A-B sections of ice-melt the sections for HVDC transmission line；
Fig. 2 is the structural schematic diagram of the full-bridge rectification module in Fig. 1 based on thyristor；
Fig. 3 is the structural schematic diagram of the full-bridge inverting module based on IGBT in embodiment 1；
Fig. 4 is the structural schematic diagram of the full-bridge inverting module based on reverse switch transistor in embodiment 2.
Specific embodiment
The present invention will be further described below with reference to examples, but protection scope of the present invention is not limited solely to implement
Example.
The embodiment of the present invention 1 as Figure 1-Figure 4:
A kind of DC power transmission line conductor ice prevention and static passive compensation device, including deicing device, first filter and
Second filter；The solid conductor of transmission line of alternation current AB sections for needing ice-melt, referred to as ice-melt section AB, both ends are respectively
Side a and b；The first filter includes disconnecting switch K4 and the first high-pass filter, and one end of the first high-pass filter connects
One end of disconnecting switch K4 is connect, the other end ground connection of the first high-pass filter, one end of disconnecting switch K4 connects the filter of the first high pass
One end of wave device, the end B of the other end connection ice-melt section AB of disconnecting switch K4；The second filter include disconnecting switch K3 and
Second high-pass filter, the second high-pass filter one end connection disconnecting switch K3 one end, the second high-pass filter it is another
End ground connection, one end of disconnecting switch K3 connect one end of the second high-pass filter, and the other end of disconnecting switch K3 connects ice-melt section
The end the A output point of AB；The deicing device include inductance L1, three-phase alternating-current supply P1, disconnecting switch K1, full-bridge rectification module,
Storage capacitor C0, full-bridge inverting module, series resonance unit, high frequency transformer T, capacitor C and disconnecting switch K2；The ice-melt dress
The structure set is as follows: the input terminal of disconnecting switch K1 is connect with the output end of three-phase alternating-current supply P1, the output of disconnecting switch K1
The input terminal of end connection connection thyristor full-bridge rectification module；The input of the output end P1 and storage capacitor C0 of full-bridge rectification module
End and full-bridge inverting module input terminal P3 connection, the output end of the output end P2 and storage capacitor C0 of full-bridge rectification module and entirely
The input terminal P4 connection of bridge inverter module, output end P5, P6 of full-bridge inverting module respectively with series resonance unit input terminal
Two endpoints P7, P8 connection, two endpoints P9, P10 of series resonance unit output end respectively with high frequency transformer T input terminal
The connection of two endpoints, one end of the output end of high frequency transformer T are connect with the input terminal of capacitor C, the output end of transformer T it is another
One end ground connection, the output end of capacitor C are connect with the input terminal of disconnecting switch K2, and the output end of disconnecting switch K2 is with ice-melt section AB's
The input terminal at the end A connects, and the output end of disconnecting switch K2 is connect with the input terminal of inductance L1, the output end of inductance L1 and the second filter
The input terminal of the disconnecting switch K3 of wave device connects, and the input terminal of disconnecting switch K3 is connect with the output point at the end A of ice-melt section AB.
By the closing or opening of K1, K2, K3, K4, it can be achieved that the anti-icing mode and reactive compensation mode of deicing device it
Between conversion.
By using this technical solution: by the closing or opening of each disconnecting switch, realizing the anti-icing mould of deicing device
Formula and DC filtering function；When disconnecting switch K1, K2, K3, K4 are closed, for anti-icing mode.Capacitor C0 passes through full-bridge rectification module
And disconnecting switch K1 obtains electric energy from AC power source P1 and stores DC energy source, C0 passes through full-bridge inverting module, series resonance list
Member, pulse transformer and capacitor C are to needing the single DC wire of deicing to export high-frequency current, capacitor C and AB sections of line inductances
Series resonant circuit is formed, AB sections of non-resistive high-frequency resistance is reduced to and is approximately equal to 0, when the impedance of AB sections of line resistance R
When much smaller than L1, majority of high frequency electric current is returned by AB section lead, disconnecting switch K2, the first high-pass filter and ground terminal
To the ground terminal of transformer T, conductor overheating, to remove conducting wire ice coating.When disconnecting switch K1, K2 disconnects, K3, K4 are closed, and are
DC filtering mode, inductance L1, the first high-pass filter and the second high-pass filter collective effect, eliminates the high frequency of DC line
Harmonic wave.
Wherein, the semiconductor power device in the full-bridge rectification module uses thyristor, as shown in Figure 2.The full-bridge
Semiconductor power device in inverter module uses IGBT, as shown in Figure 3.
The embodiment of the present invention 2: the distinctive points of itself and embodiment 1 are: full-bridge inverting module uses RSD full-bridge inverting mould
Block, as shown in Figure 4.
Finally, it should be noted that above embodiments are only to illustrate the present invention and not limit technology described in the invention
Scheme, therefore, although this specification is referring to above-mentioned each embodiment, the present invention has been described in detail, this
Field it is to be appreciated by one skilled in the art that still can modify to the present invention or equivalent replacement, and all do not depart from this
The technical solution and its improvement of the spirit and scope of invention, should all cover within the scope of the claims of the present invention.
Claims (4)
1. a kind of DC power transmission line conductor ice prevention and static passive compensation device, it is characterised in that: including deicing device, first
Filter and second filter；It will need transmission line of alternation current AB sections of solid conductor of ice-melt, referred to as ice-melt section AB, both ends
Respectively side a and b；The first filter includes disconnecting switch K4 and the first high-pass filter, the first high-pass filter
One end connects one end of disconnecting switch K4, the other end ground connection of the first high-pass filter, one end connection first of disconnecting switch K4
One end of high-pass filter, the end B of the other end connection ice-melt section AB of disconnecting switch K4；The second filter includes keeping apart
Close K3 and the second high-pass filter, one end of one end connection disconnecting switch K3 of the second high-pass filter, the second high-pass filter
Other end ground connection, one end of disconnecting switch K3 connects one end of the second high-pass filter, the other end connection of disconnecting switch K3
The end the A output point of ice-melt section AB；The deicing device includes inductance L1, three-phase alternating-current supply P1, disconnecting switch K1, full-bridge rectification
Module, storage capacitor C0, full-bridge inverting module, series resonance unit, high frequency transformer T, capacitor C and disconnecting switch K2；It is described
The structure of deicing device is as follows: the input terminal of disconnecting switch K1 is connect with the output end of three-phase alternating-current supply P1, disconnecting switch K1
Output end connection thyristor full-bridge rectification module input terminal；The output end P1's and storage capacitor C0 of full-bridge rectification module is defeated
Enter the input terminal P3 connection of end and full-bridge inverting module, the output end of the output end P2 and storage capacitor C0 of full-bridge rectification module and
The input terminal P4 connection of full-bridge inverting module, output end P5, P6 of full-bridge inverting module respectively with series resonance unit input terminal
Two endpoints P7, P8 connection, two endpoints P9, P10 of series resonance unit output end respectively with high frequency transformer T input terminal
The connection of two endpoints, one end of the output end of high frequency transformer T connect with the input terminal of capacitor C, the output end of transformer T
Other end ground connection, the output end of capacitor C are connect with the input terminal of disconnecting switch K2, the output end and ice-melt section AB of disconnecting switch K2
The end A input point connection, the output end of disconnecting switch K2 connect with the input terminal of inductance L1, the output end of inductance L1 and second
The input terminal of the disconnecting switch K3 of filter connects, and the input terminal of disconnecting switch K3 is connect with the output point at the end A of ice-melt section AB；
By the closing or opening of K1, K2, K3, K4, it can be achieved that conversion between the anti-icing mode and reactive compensation mode of deicing device.
2. a kind of DC power transmission line conductor ice prevention as described in claim 1 and static passive compensation device,
It is characterized by: the semiconductor power device in the full-bridge rectification module is using appointing in thyristor, IGBT or IGCT
It is a kind of.
3. a kind of DC power transmission line conductor ice prevention as claimed in claim 2 and static passive compensation device, it is characterised in that:
Semiconductor power device in the full-bridge inverting module is using appointing in thyristor, IGBT, IGCT or reverse switch transistor
It is a kind of.
4. a kind of DC power transmission line conductor ice prevention and static reactive as described in any one of claim 1-3 claim
Device, it is characterised in that: on the conducting wire of two sets or more two for being respectively installed to DC power transmission line or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610829559.4A CN106229930B (en) | 2016-09-18 | 2016-09-18 | A kind of DC power transmission line conductor ice prevention and static passive compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610829559.4A CN106229930B (en) | 2016-09-18 | 2016-09-18 | A kind of DC power transmission line conductor ice prevention and static passive compensation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106229930A CN106229930A (en) | 2016-12-14 |
| CN106229930B true CN106229930B (en) | 2019-03-05 |
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| CN201610829559.4A Expired - Fee Related CN106229930B (en) | 2016-09-18 | 2016-09-18 | A kind of DC power transmission line conductor ice prevention and static passive compensation device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655059A (en) * | 2017-02-17 | 2017-05-10 | 贵州电安网科技有限公司 | Device for performing ice melting on power transmission line by employing high-frequency harmonic |
| CN109494671A (en) * | 2018-12-28 | 2019-03-19 | 国网湖南省电力有限公司 | Agriculture distribution transmission line of electricity on-load deicing device and de-icing method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082962A (en) * | 1977-07-11 | 1978-04-04 | Burgsdorf Vladimir Vladimirovi | Device for melting the icing by direct current on conductors of overhead power transmission line |
| CN100553095C (en) * | 2006-12-21 | 2009-10-21 | 中国科学院电工研究所 | A kind of high-frequency and high-voltage power supply that is used for the leakage of plastic liquid container detection |
| CN201188528Y (en) * | 2008-05-09 | 2009-01-28 | 东南大学 | Link power frequency icing apparatus |
| CN102195261A (en) * | 2011-05-31 | 2011-09-21 | 长沙理工大学 | 18kV and 40kHz high-frequency de-icing device and de-icing method thereof |
| CN102412544B (en) * | 2011-12-09 | 2015-07-15 | 贺长宏 | Power-uninterrupted ice melting and SVG-type reactive static compensation compound device and use method thereof |
| CN104215889A (en) * | 2014-09-17 | 2014-12-17 | 中国科学院电工研究所 | High-frequency insulation withstand voltage tester |
| CN204465350U (en) * | 2015-01-30 | 2015-07-08 | 惟能科技（上海）有限公司 | A kind of resonance offset frequency ozonizer power supply |
| CN204928049U (en) * | 2015-09-11 | 2015-12-30 | 国网江西省电力公司南昌供电分公司 | High frequency excitation ice -melt device |
| CN206323107U (en) * | 2016-09-18 | 2017-07-11 | 湖北科技学院 | A kind of DC power transmission line conductor ice prevention and static passive compensation device |
-
2016
- 2016-09-18 CN CN201610829559.4A patent/CN106229930B/en not_active Expired - Fee Related
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