CN206323107U - 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
- CN206323107U CN206323107U CN201621061026.8U CN201621061026U CN206323107U CN 206323107 U CN206323107 U CN 206323107U CN 201621061026 U CN201621061026 U CN 201621061026U CN 206323107 U CN206323107 U CN 206323107U
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- Prior art keywords
- disconnecting switch
- transmission line
- ice
- full
- pass filter
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- 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
Abstract
The utility model discloses a kind of DC power transmission line conductor ice prevention and static passive compensation device, it is characterised in that：Including deicing device, the first high-pass filter, the second high-pass filter；It is described to need transmission line of alternation current AB sections of two ends respectively side a and b of ice-melt；First high-pass filter, which is located at, needs transmission line of alternation current AB sections of B ends of ice-melt；Second high-pass filter, which is located at, needs transmission line of alternation current AB sections of A ends output point of ice-melt；Deicing device is located between A ends 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 utility model realizes the anti-icing of HVDC transmission line wire without having a power failure, it is to avoid the economic loss caused by power failure, reduces human users' degree of danger.The cost of installation and maintenance of high frequency electric source is reduced, reliability and stability have been obviously improved.
Description
Technical field
The utility model is related to field of power, is related to a kind of anti-icing technology of high-voltage AC transmission line.Specifically, relate to
And a kind of DC power transmission line conductor ice prevention and static passive compensation device and combinations thereof.
Background technology
In the winter time under sleety weather, consecutive low temperature sleet and snow ice can 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 power system.The anti-icing method of current main flow is thermal ice-melting method, and its principle is by increasing transmission line of electricity
In electric current or current density, or increase transmission pressure equivalent resistance, or increase current in wire and conductor resistance simultaneously makes defeated
Electric lead self-heating, so as to melt the icing above wire.Mainly include short circuit current flow ice-melt, high frequency pumping ice-melt, direct current
Electric current ice-melt, trend scheduling ice-melt.Wherein, power transmission line is being implemented in short circuit current flow ice-melt, DC current ice-melt, trend scheduling ice-melt
During the ice-melt of road, it is necessary to have a power failure 4-8 hour/time, there is very big negative shadow in power supply quality and economic benefit to power system
Ring.Although and the high frequency pumping ice-melt based on Kelvin effect can be realized and not have a power failure anti-icing, need the selected position of deicing circuit
The midpoint for putting i.e. circuit is installed by high frequency electric source；Trapper is installed at the two ends of circuit, to control the sphere of action of high frequency electric.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 circuit midpoint
Position is unfavorable for the construction of deicing device, and staff, which needs to trudge just enter the station, to be operated and safeguard.In addition, high frequency electric source
Many to constitute power supply core switching using semiconductor power device connection in series-parallel such as IGBT, MOSFET, these semiconductor switch prices are held high
It is expensive, add the construction cost of device.How to overcome above mentioned problem is the direction that those skilled in the art need to study.
Utility model content
To solve the above problems, the utility model proposes based on semiconductor power device-reverse switch transistor
The anti-icing simultaneous static reactive of a kind of VSC-HVDC line conductor of (Reservely Switched Dynistor, RSD)
Device.
In order to reach the purpose of this utility model, technical scheme is as follows：
A kind of DC power transmission line conductor ice prevention and static passive compensation device, including deicing device, the first wave filter and
Second wave filter；Described to need transmission line of alternation current AB sections of solid conductor of ice-melt, referred to as ice-melt section AB, its two ends is respectively
Side a and b；First wave filter includes disconnecting switch K4 and the first high-pass filter, and one end of the first high-pass filter connects
Disconnecting switch K4 one end is connect, the other end ground connection of the first high-pass filter, disconnecting switch K4 one end connects the filter of the first high pass
One end of ripple device, disconnecting switch K4 other end connection ice-melt section AB B ends；Second wave filter include disconnecting switch K3 and
Second high-pass filter, one end connection disconnecting switch K3 of the second high-pass filter one end, the second high-pass filter it is another
End ground connection, disconnecting switch K3 one end connects one end of the second high-pass filter, disconnecting switch K3 other end connection ice-melt section
AB A ends output point；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, electric capacity C and disconnecting switch K2；The ice-melt dress
The structure put is as follows：Disconnecting switch K1 input is connected with three-phase alternating-current supply P1 output end, disconnecting switch K1 output
The input of end connection connection IGCT full-bridge rectification module；The output end P1 and storage capacitor C0 of full-bridge rectification module input
End and full-bridge inverting module input P3 connections, the output end P2 and storage capacitor C0 of full-bridge rectification module output end and entirely
The input P4 connections of bridge inversion module, output end P5, P6 of full-bridge inverting module respectively with series resonance unit input
Two end points P7, P8 connection, two end points P9, P10 of series resonance unit output end respectively with high frequency transformer T inputs
Two end points connection, one end of high frequency transformer T output end is connected with electric capacity C input, transformer T output end it is another
One end is grounded, and electric capacity C output end is connected with disconnecting switch K2 input, and disconnecting switch K2 output end is with ice-melt section AB's
The input connection at A ends, disconnecting switch K2 output end is connected with inductance L1 input, inductance L1 output end and the second filter
The disconnecting switch K3 of ripple device input connection, disconnecting switch K3 input is connected with the output point at ice-melt section AB A ends.
Closure or disconnection by K1, K2, K3, K4, can be achieved deicing device anti-icing mode and reactive-load compensation pattern it
Between conversion.
By using this technical scheme：Closure or disconnection by each disconnecting switch, realize the anti-icing mould of deicing device
Formula and DC filtering function；It is anti-icing mode when disconnecting switch K1, K2, K3, K4 closure.Electric capacity C0 passes through full-bridge rectification module
And disconnecting switch K1 obtains electric energy from AC power P1 and stores DC energy source, C0 passes through full-bridge inverting module, series resonance list
Member, pulse transformer and electric capacity C are to needing the single DC wire of deicing to export high frequency electric, electric capacity C and AB sections of line inductances
Series resonant circuit is constituted, AB sections of non-resistive high-frequency resistance is reduced to and is approximately equal to 0, when AB sections of line resistance R impedance
During much smaller than L1, majority of high frequency electric current is returned to by AB section leads, disconnecting switch K2, the first high-pass filter and earth terminal
Transformer T earth terminal, conductor overheating, so as to remove 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
Ripple.
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 of IGCT, 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 IGCT, IGBT, IGCT or reverse switch transistor (Reservely Switched Dynistor,
Any of RSD).
With two sets or more than two sets (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 more than two (three or four or five) wires of DC power transmission line.
Compared with prior art, the utility model realizes the anti-icing of high-voltage power line conductive line without having a power failure, it is to avoid because
Have a power failure the economic loss caused.The cost of installation and maintenance of high frequency electric source is reduced, reliability and stability have been obviously improved.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model, the wherein A-B sections of ice-melt section for HVDC transmission line；
Fig. 2 is the structural representation of the full-bridge rectification module based on IGCT in Fig. 1；
Fig. 3 is the structural representation of the full-bridge inverting module based on IGBT in embodiment 1；
Fig. 4 is the structural representation of the full-bridge inverting module based on reverse switch transistor in embodiment 2.
Embodiment
The utility model is further described with reference to embodiment, but protection domain of the present utility model not only office
It is limited to embodiment.
Embodiment 1 of the present utility model as Figure 1-Figure 4：
A kind of DC power transmission line conductor ice prevention and static passive compensation device, including deicing device, the first wave filter and
Second wave filter；Described to need transmission line of alternation current AB sections of solid conductor of ice-melt, referred to as ice-melt section AB, its two ends is respectively
Side a and b；First wave filter includes disconnecting switch K4 and the first high-pass filter, and one end of the first high-pass filter connects
Disconnecting switch K4 one end is connect, the other end ground connection of the first high-pass filter, disconnecting switch K4 one end connects the filter of the first high pass
One end of ripple device, disconnecting switch K4 other end connection ice-melt section AB B ends；Second wave filter include disconnecting switch K3 and
Second high-pass filter, one end connection disconnecting switch K3 of the second high-pass filter one end, the second high-pass filter it is another
End ground connection, disconnecting switch K3 one end connects one end of the second high-pass filter, disconnecting switch K3 other end connection ice-melt section
AB A ends output point；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, electric capacity C and disconnecting switch K2；The ice-melt dress
The structure put is as follows：Disconnecting switch K1 input is connected with three-phase alternating-current supply P1 output end, disconnecting switch K1 output
The input of end connection connection IGCT full-bridge rectification module；The output end P1 and storage capacitor C0 of full-bridge rectification module input
End and full-bridge inverting module input P3 connections, the output end P2 and storage capacitor C0 of full-bridge rectification module output end and entirely
The input P4 connections of bridge inversion module, output end P5, P6 of full-bridge inverting module respectively with series resonance unit input
Two end points P7, P8 connection, two end points P9, P10 of series resonance unit output end respectively with high frequency transformer T inputs
Two end points connection, one end of high frequency transformer T output end is connected with electric capacity C input, transformer T output end it is another
One end is grounded, and electric capacity C output end is connected with disconnecting switch K2 input, and disconnecting switch K2 output end is with ice-melt section AB's
The input connection at A ends, disconnecting switch K2 output end is connected with inductance L1 input, inductance L1 output end and the second filter
The disconnecting switch K3 of ripple device input connection, disconnecting switch K3 input is connected with the output point at ice-melt section AB A ends.
Closure or disconnection by K1, K2, K3, K4, can be achieved deicing device anti-icing mode and reactive-load compensation pattern it
Between conversion.
By using this technical scheme：Closure or disconnection by each disconnecting switch, realize the anti-icing mould of deicing device
Formula and DC filtering function；It is anti-icing mode when disconnecting switch K1, K2, K3, K4 closure.Electric capacity C0 passes through full-bridge rectification module
And disconnecting switch K1 obtains electric energy from AC power P1 and stores DC energy source, C0 passes through full-bridge inverting module, series resonance list
Member, pulse transformer and electric capacity C are to needing the single DC wire of deicing to export high frequency electric, electric capacity C and AB sections of line inductances
Series resonant circuit is constituted, AB sections of non-resistive high-frequency resistance is reduced to and is approximately equal to 0, when AB sections of line resistance R impedance
During much smaller than L1, majority of high frequency electric current is returned by AB section leads, disconnecting switch K2, the first high-pass filter and earth terminal
To transformer T earth terminal, conductor overheating, so as to remove wire ice coating.When disconnecting switch K1, K2 disconnects, K3, K4 are closed, and are
DC filtering pattern, inductance L1, the first high-pass filter and the second high-pass filter collective effect eliminate the high frequency of DC line
Harmonic wave.
Wherein, the semiconductor power device in the full-bridge rectification module uses IGCT, as shown in Figure 2.The full-bridge
Semiconductor power device in inversion module uses IGBT, as shown in Figure 3.
Embodiment 2 of the present utility model：It is with the distinctive points of embodiment 1：Full-bridge inverting module is inverse using RSD full-bridges
Become module, as shown in Figure 4.
Finally it should be noted that：Above example only not limits the utility model and retouched to illustrate the utility model
The technical scheme stated, therefore, although this specification the utility model is had been carried out with reference to each above-mentioned embodiment it is detailed
Illustrate, still, it will be understood by those within the art that, still the utility model can be modified or equally replaced
Change, and technical scheme that all do not depart from spirit and scope of the present utility model and its improvement, it all should cover new in this practicality
In the right of type.
Claims (6)
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
Wave filter and the second wave filter；Treat the solid conductor of AB sections of the DC power transmission line of ice-melt, referred to as ice-melt section AB, its two ends difference
For side a and b；First wave filter includes disconnecting switch K4 and the first high-pass filter, one end of the first high-pass filter
Connect disconnecting switch K4 one end, the other end ground connection of the first high-pass filter, disconnecting switch K4 the first high pass of one end connection
One end of wave filter, disconnecting switch K4 other end connection ice-melt section AB B ends；Second wave filter includes disconnecting switch K3
With the second high-pass filter, one end connection disconnecting switch K3 of the second high-pass filter one end, the second high-pass filter it is another
One end is grounded, and disconnecting switch K3 one end connects one end of the second high-pass filter, disconnecting switch K3 other end connection ice-melt
Section AB A ends output point.
2. a kind of DC power transmission line conductor ice prevention as claimed in claim 1 and static passive compensation device, it is characterised in that：
The deicing device includes inductance L1, three-phase alternating-current supply P1, disconnecting switch K1, full-bridge rectification module, storage capacitor C0, full-bridge
Inversion module, series resonance unit, high frequency transformer T, electric capacity C and disconnecting switch K2；The structure of the deicing device is as follows：Every
The input for leaving pass K1 is connected with three-phase alternating-current supply P1 output end, disconnecting switch K1 output end connection IGCT full-bridge
The input of rectification module；The output end P1 and storage capacitor C0 of full-bridge rectification module input and full-bridge inverting module it is defeated
Enter and hold P3 to connect, the output end P2 and storage capacitor C0 of full-bridge rectification module output end and the input P4 of full-bridge inverting module
Connection, output end P5, P6 of full-bridge inverting module is connected with two end points P7, P8 of series resonance unit input respectively, is gone here and there
Two end points P9, P10 of connection resonant element output end are connected with two end points of high frequency transformer T inputs respectively, and high frequency becomes
One end of depressor T output end is connected with electric capacity C input, the other end ground connection of transformer T output end, and electric capacity C's is defeated
Go out end to be connected with disconnecting switch K2 input, disconnecting switch K2 output end is connected with the input point at ice-melt section AB A ends, every
The output end for leaving pass K2 is connected with inductance L1 input, inductance L1 output end and the disconnecting switch K3 of the second wave filter
Input connection, disconnecting switch K3 input is connected with the output point at ice-melt section AB A ends.
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：
Closure or disconnection by K1, K2, K3, K4, can be achieved the conversion between the anti-icing mode and reactive-load compensation pattern of deicing device.
4. 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 rectification module is using any of IGCT, IGBT or IGCT.
5. a kind of DC power transmission line conductor ice prevention as claimed in claim 4 and static passive compensation device, it is characterised in that：
Semiconductor power device in the full-bridge inverting module is using appointing in IGCT, IGBT, IGCT or reverse switch transistor
It is a kind of.
6. a kind of DC power transmission line conductor ice prevention and static reactive as described in any one of claim 1-5 claim
Device, it is characterised in that：Two or two that DC power transmission line is respectively installed to the compensation device of two sets or more than two sets
On wire above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061026.8U CN206323107U (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 |
|---|---|---|---|
| CN201621061026.8U CN206323107U (en) | 2016-09-18 | 2016-09-18 | A kind of DC power transmission line conductor ice prevention and static passive compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206323107U true CN206323107U (en) | 2017-07-11 |
Family
ID=59263010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621061026.8U Withdrawn - After Issue CN206323107U (en) | 2016-09-18 | 2016-09-18 | A kind of DC power transmission line conductor ice prevention and static passive compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206323107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229930A (en) * | 2016-09-18 | 2016-12-14 | 湖北科技学院 | A kind of DC power transmission line conductor ice prevention is held concurrently static passive compensation device |
-
2016
- 2016-09-18 CN CN201621061026.8U patent/CN206323107U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229930A (en) * | 2016-09-18 | 2016-12-14 | 湖北科技学院 | A kind of DC power transmission line conductor ice prevention is held concurrently static passive compensation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170711 Effective date of abandoning: 20190305 |
|
| AV01 | Patent right actively abandoned |