CN206712451U - A kind of transfer tributary unit of dc circuit breaker - Google Patents
A kind of transfer tributary unit of dc circuit breaker Download PDFInfo
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- CN206712451U CN206712451U CN201720538586.6U CN201720538586U CN206712451U CN 206712451 U CN206712451 U CN 206712451U CN 201720538586 U CN201720538586 U CN 201720538586U CN 206712451 U CN206712451 U CN 206712451U
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Abstract
It the utility model is related to a kind of transfer tributary unit of dc circuit breaker, including multiple IGBT valves heaps, multiple diode valve heaps and unit supports framework；Each IGBT valves heap is connected in series with corresponding diode valve heap and forms H bridge structures, and the height of the diode valve heap is higher than the height of IGBT valve heaps；The unit supports framework is upper along its length and multiple IGBT valves heaps and multiple diode valve heaps are respectively equipped with along its width, the unit supports framework along its length on multiple IGBT valves heaps and multiple diode valve heaps be connected in parallel respectively, the unit supports framework is connected in series respectively along multiple IGBT valves heaps on its width and multiple diode valve heaps, and the side of each IGBT valves heap is equipped with the RCD buffer loops of connection connected in parallel.The utility model is not only compact-sized, and is easy to I＆ M, can still ensure All other routes stable operation in certain line failure.
Description
Technical field
It the utility model is related to a kind of transfer tributary unit, and in particular to a kind of transfer tributary unit of dc circuit breaker,
Belong to high pressure, super high voltage direct current electricity transmission technical field.
Background technology
With the quickening of China's DC transmission engineering construction, high voltage DC breaker is structure multiterminal flexible direct current system
Core equipment, it is possible to increase the economy and reliability of system operation.For Multi-end flexible direct current transmission system, current conversion station is all
Designed and realized using IGBT module, due to there being fly-wheel diode inside IGBT, when an error occurs, it is necessary to stop transport in short-term whole
Then MTDC transmission system restarts straight-flow system to remove failure.Therefore, if installing dc circuit breaker in DC loop,
Just can quick, reliable and selective excision trouble point, then can still ensure other in certain line failure
Circuit stable operation, to maintain direct current network safe and stable operation and protect the key equipment in power network.Therefore, it is badly in need of design one
The transfer tributary unit of kind dc circuit breaker, to meet high voltage DC breaker operation and high reliability request steadily in the long term.
The content of the invention
The purpose of this utility model is：It is compact-sized to provide one kind, it is rationally distributed, and it is easy to the direct current of I＆ M to break
The transfer tributary unit of road device, can be by the way that multiple transfer tributary units be serially connected and multi-tier arrangement realizes different voltage class
It is required that to meet high voltage DC breaker operation and high reliability request steadily in the long term.
In order to achieve the above object, the technical solution of the utility model is：A kind of transfer tributary unit of dc circuit breaker,
Its innovative point is：Including multiple IGBT valves heaps, multiple diode valve heaps and unit supports framework；
The multiple IGBT valves heap and multiple diode valve heaps are arranged side by side on unit supports framework, each IGBT valve
Heap is connected in series with corresponding diode valve heap and forms H bridge structures, and the height of the diode valve heap is higher than IGBT valve heaps
Highly；
The unit supports framework is upper along its length and multiple IGBT valves heaps, institute are respectively equipped with along its width
State unit supports framework along its length on multiple IGBT valves heaps be connected in parallel, the unit supports framework is along its width side
Upward multiple IGBT valves heaps are connected in series, and are equipped with the unit supports framework and positioned at the side of each IGBT valves heap
RCD buffer loops, and RCD buffer loops are connected in parallel with IGBT valve heaps；
The unit supports framework is upper along its length and multiple diode valve heaps are respectively equipped with along its width,
The unit supports framework along its length on multiple diode valve heaps be connected in parallel, the unit supports framework is wide along it
Multiple diode valve heaps on degree direction are connected in parallel.
In the above-mentioned technical solutions, the RCD buffer loops include electric capacity, diode and resistance, and the diode passes through
Copper bar is connected in series with electric capacity, and resistance is connected in parallel by cable and electric capacity.
In the above-mentioned technical solutions, each described IGBT valves heap include IGBT load frames, IGBT radiators and
IGBT module, the IGBT load frames are provided with multiple IGBT modules, and adjacent IGBT module is dissipated by the IGBT of both sides
Hot device electrical connection, the multiple IGBT module is in parallel with one group of RCD buffer loop respectively, and is respectively arranged with each IGBT radiators
The diode and resistance of one group of RCD buffer loop.
In the above-mentioned technical solutions, the IGBT load frames include pressure strip, insulated tension pole and held down assembly, described exhausted
The both ends of edge pull bar are fixedly connected with pressure strip respectively, and the inner side of the pressure strip of described insulated tension pole one end, which is provided with, to hold down assembly,
Described hold down assembly is threadedly coupled including push rod, axle sleeve and disc spring, the push rod by locking nut with the pressure strip, the dish
Spring is located between push rod and axle sleeve, and axle sleeve offsets with a close IGBT radiator, the pressure of the insulated tension pole other end
The inner side of tight plate is provided with cushion block, and the cushion block offsets with a close IGBT radiator.
In the above-mentioned technical solutions, the electric capacity is fixedly connected by electric capacity supports insulative beam with unit supports framework.
In the above-mentioned technical solutions, the multiple diode valve heap includes diode load frame, diode radiating device
And diode, the diode load frame is provided with multiple diodes, and adjacent diode is dissipated by the diode of both sides
Hot device electrical connection.
In the above-mentioned technical solutions, the diode load frame is fixed by support insulator and unit supports framework and connected
Connect.
In the above-mentioned technical solutions, the periphery of the unit supports framework is provided with multiple radomes arranged apart.
In the above-mentioned technical solutions, the IGBT valves heap is provided with IGBT drive module, and the IGBT drive module passes through
Connector electrically connects with IGBT module.
In the above-mentioned technical solutions, the unit supports framework includes isolation beam and multiple beams of metals arranged apart, and
The both ends of multiple beams of metals arranged apart are fixedly connected with isolation beam respectively.
Good effect is possessed by the utility model：Using the transfer tributary unit of dc circuit breaker of the present utility model
Afterwards, because the utility model includes multiple IGBT valves heaps, multiple diode valve heaps and unit supports framework；
The multiple IGBT valves heap and multiple diode valve heaps are arranged side by side on unit supports framework, each IGBT valve
Heap is connected in series with corresponding diode valve heap and forms H bridge structures, and the height of the diode valve heap is higher than IGBT valve heaps
Highly；
The unit supports framework is upper along its length and multiple IGBT valves heaps, institute are respectively equipped with along its width
State unit supports framework along its length on multiple IGBT valves heaps be connected in parallel, the unit supports framework is along its width side
Upward multiple IGBT valves heaps are connected in series, and are equipped with the unit supports framework and positioned at the side of each IGBT valves heap
RCD buffer loops, and RCD buffer loops are connected in parallel with IGBT valve heaps；
The unit supports framework is upper along its length and multiple diode valve heaps are respectively equipped with along its width,
The unit supports framework along its length on multiple diode valve heaps be connected in parallel, the unit supports framework is wide along it
Multiple diode valve heaps on degree direction are connected in parallel；
Dc circuit breaker in existing DC loop includes the through-flow tributary unit of master in parallel, transfer tributary unit and consumption
Energy tributary unit, transfer tributary unit of the present utility model is in series by multiple transfer branch roads, and multi-tier arrangement is realized not
With voltage class requirement, when certain line failure in DC loop, pass through the transfer branch road list of dc circuit breaker
Member, it becomes possible to quick, reliable and selective excision trouble point, and can still ensure All other routes stable operation, this reality
With new not only compact-sized and convenient for installation and maintenance, to meet high voltage DC breaker operation steadily in the long term and highly reliable
Property require.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present utility model；
Fig. 2 is a kind of dimensional structure diagram of embodiment of the present utility model；
Fig. 3 is the dimensional structure diagram that IGBT valves heap of the present utility model is connected with RCD buffer loops；
Marked in figure：1- radomes, 2-IGBT valves heap, 3- diode valves heap, 4-IGBT radiators, 5-IGBT modules, 6-
Electric capacity, 7- diodes, 8-IGBT drive modules, 9- unit supports framework, 10- isolation beams, 11- diodes, 12- diode radiatings
Device, 13- support insulators, 14- electric capacity supports insulatives beam, 15-IGBT load frames, 16- diodes load frame, 17- resistance,
151- pressure strips, 152- insulated tension poles, 153- push rods, 154- axle sleeves, 155- disc springs, 156- cushion blocks, 157- locking nuts.
Embodiment
Below in conjunction with accompanying drawing and the embodiment provided, the utility model is further described, but is not limited to
This.
As shown in Figure 1, 2, 3, the transfer tributary unit of a kind of dc circuit breaker, including multiple IGBT valves heaps 2, multiple two poles
Pipe valve heap 3 and unit supports framework 9；
The multiple IGBT valves heap 2 and multiple diode valve heaps 3 are arranged side by side on unit supports framework 9, each
IGBT valves heap 2 is connected in series with corresponding diode valve heap 3 and forms H bridge structures, and the height of the diode valve heap 3 is higher than
The height of IGBT valves heap 2；
The unit supports framework 9 is upper along its length and multiple IGBT valves heaps 2 are respectively equipped with along its width,
The unit supports framework 9 along its length on multiple IGBT valves heaps 2 be connected in parallel by connecting copper bar, the unit branch
Support frame frame 9 is connected in series along multiple IGBT valves heaps 2 on its width by connecting copper bar, on the unit supports framework 9
And RCD buffer loops are equipped with positioned at the side of each IGBT valves heap 2, and RCD buffer loops are connected in parallel with IGBT valves heap 2；
The unit supports framework 9 is upper along its length and multiple diode valve heaps are respectively equipped with along its width
3, the unit supports framework 9 along its length on multiple diode valve heaps 3 be connected in parallel by connecting copper bar, the list
First support frame 9 is connected in parallel along multiple diode valve heaps 3 on its width by connecting copper bar.
As shown in figure 1, the multiple IGBT valves heap 2 and multiple diode valve heaps 3 in the present embodiment are 4.
As shown in figure 3, in order to play buffer loop effect, the RCD buffer loops include electric capacity 6, diode 7 and resistance
17, the diode 7 is connected in series by copper bar and electric capacity 6, and resistance 17 is connected in parallel by cable and electric capacity 6.
As shown in figure 1, each described IGBT valves heap 2 includes IGBT load frames 15, IGBT radiators 4 and IGBT moulds
Block 5, the IGBT load frames 15 are provided with multiple IGBT modules 5, and adjacent IGBT module 5 is radiated by the IGBT of both sides
Device 4 electrically connects, and the multiple IGBT module 5 is in parallel with one group of RCD buffer loop respectively, and is filled on each IGBT radiators 4
There are the diode 7 and resistance 17 of one group of RCD buffer loop.The IGBT valves heap 2 is by 16 grades of IGBT modules 5 and 17 pieces of IGBT radiatings
Device 4 is connected in series.
As shown in figure 3, in order to further improve the reasonability of the utility model structure, the IGBT load frames 15 include
Pressure strip 151, insulated tension pole 152 and holding down assembly, the both ends of the insulated tension pole 152 are fixedly connected with pressure strip 151 respectively,
The inner side of the pressure strip 151 of described one end of insulated tension pole 152 is provided with and held down assembly, described to hold down assembly including push rod 153, axle sleeve
154 and disc spring 155, the push rod 153 be threadedly coupled by locking nut 157 with the pressure strip 151, the disc spring 155 is located at
Between push rod 153 and axle sleeve 154, and axle sleeve 154 offsets with a close IGBT radiator 4, and the insulated tension pole 152 is another
The inner side of the pressure strip 151 at end is provided with cushion block 156, and the cushion block 156 offsets with a close IGBT radiator 4.
As shown in figure 1, for the ease of Support Capacitor 6, the electric capacity 6 passes through electric capacity supports insulative beam 14 and unit supports frame
Frame 9 is fixedly connected.
As shown in figure 1, in order that the utility model structure it is compacter, reasonable, the multiple diode valve heap 3 wraps
Diode load frame 16, diode radiating device 12 and diode 11 are included, the diode load frame 16 is provided with multiple two
Pole pipe 11, and adjacent diode 11 is electrically connected by the diode radiating device 12 of both sides.Each diode valve heap 3 is by 32
Level diode 11 and 33 pieces of diode radiating devices 12 are connected in series.
As shown in Fig. 2 in order to reach pressure difference arrangement, different voltage class requirements, the diode load frame 16 are realized
It is fixedly connected by support insulator 13 with unit supports framework 9 so that in the height of the diode valve heap 3 of unit supports framework 9
Height of the degree higher than IGBT valves heap 2.
As shown in Figure 1, 2, in order to easy for installation and reliable, the periphery of the unit supports framework 9 is provided with multiple separately cloth
The radome 1 put.The radome 1 divides for side shield cover and angle radome, can effectively play shielding action, prevent to do
Disturb.
As shown in figure 1, for the ease of driving the action of the IGBT module 5, the IGBT valves heap 2 drives provided with IGBT
Module 8, the IGBT drive module 8 are electrically connected by connector with IGBT module 5.
As shown in figure 1, in order that the utility model structure it is compacter, the unit supports framework 9 includes isolation beam
10 and multiple beams of metals arranged apart, and the both ends of multiple beams of metals arranged apart are fixedly connected with isolation beam 10 respectively,
Wherein, the beams of metal has 3, and every is aluminum section bar frame, and the isolation beam 10 at beams of metal both ends is the isolation beam of c-type.
Dc circuit breaker in existing DC loop includes the through-flow tributary unit of master in parallel, transfer tributary unit and consumption
Energy tributary unit, transfer tributary unit of the present utility model is in series by multiple transfer branch roads, and multi-tier arrangement is realized not
With voltage class requirement, when certain line failure in DC loop, pass through the transfer branch road list of dc circuit breaker
Member, it becomes possible to quick, reliable and selective excision trouble point, and can still ensure All other routes stable operation, this reality
With new not only compact-sized and convenient for installation and maintenance, to meet high voltage DC breaker operation steadily in the long term and highly reliable
Property require.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to new technical scope on specification, it is necessary to which its technology is determined according to right
Property scope.
Claims (10)
- A kind of 1. transfer tributary unit of dc circuit breaker, it is characterised in that：Including multiple IGBT valves heaps（2）, multiple diodes Valve heap（3）With unit supports framework（9）；The multiple IGBT valves heap（2）With multiple diode valve heaps（3）It is arranged side by side in unit supports framework（9）On, each IGBT valve heaps（2）With corresponding diode valve heap（3）It is connected in series and forms H bridge structures, the diode valve heap（3）Height Higher than IGBT valve heaps（2）Height；The unit supports framework（9）Multiple IGBT valves heaps above and along its width are respectively equipped with along its length（2）, The unit supports framework（9）Multiple IGBT valves heaps on along its length（2）It is connected in parallel, the unit supports framework （9）Along multiple IGBT valves heaps on its width（2）It is connected in series, the unit supports framework（9）Above and positioned at each IGBT valve heaps（2）Side be equipped with RCD buffer loops, and RCD buffer loops and IGBT valve heaps（2）It is connected in parallel；The unit supports framework（9）Multiple diode valve heaps above and along its width are respectively equipped with along its length （3）, the unit supports framework（9）Multiple diode valve heaps on along its length（3）It is connected in parallel, the unit supports Framework（9）Along multiple diode valve heaps on its width（3）It is connected in parallel.
- 2. the transfer tributary unit of dc circuit breaker according to claim 1, it is characterised in that：The RCD buffer loops Including electric capacity（6）, diode（7）And resistance（17）, the diode（7）Pass through copper bar and electric capacity（6）It is connected in series, resistance （17）Pass through cable and electric capacity（6）It is connected in parallel.
- 3. the transfer tributary unit of dc circuit breaker according to claim 2, it is characterised in that：Each described IGBT valve Heap（2）Include IGBT load frames（15）, IGBT radiators（4）And IGBT module（5）, the IGBT load frames（15）On Provided with multiple IGBT modules（5）, and adjacent IGBT module（5）Pass through the IGBT radiators of both sides（4）Electrical connection, it is the multiple IGBT module（5）It is in parallel with one group of RCD buffer loop respectively, and each IGBT radiators（4）On be respectively arranged with one group of RCD and buffer back The diode on road（7）And resistance（17）.
- 4. the transfer tributary unit of dc circuit breaker according to claim 3, it is characterised in that：The IGBT load frames （15）Including pressure strip（151）, insulated tension pole（152）With hold down assembly, the insulated tension pole（152）Both ends respectively with compression Plate（151）It is fixedly connected, the insulated tension pole（152）The pressure strip of one end（151）Inner side be provided with hold down assembly, the compression Component includes push rod（153）, axle sleeve（154）And disc spring（155）, the push rod（153）Pass through locking nut（157）With the compression Plate（151）Threaded connection, the disc spring（155）It is located at push rod（153）And axle sleeve（154）Between, and axle sleeve（154）With it is close One IGBT radiator（4）Offset, the insulated tension pole（152）The pressure strip of the other end（151）Inner side be provided with cushion block （156）, the cushion block（156）With a close IGBT radiator（4）Offset.
- 5. the transfer tributary unit of dc circuit breaker according to claim 2, it is characterised in that：The electric capacity（6）Pass through Electric capacity supports insulative beam（14）With unit supports framework（9）It is fixedly connected.
- 6. the transfer tributary unit of dc circuit breaker according to claim 1, it is characterised in that：The multiple diode valve Heap（3）Include diode load frame（16）, diode radiating device（12）And diode（11）, the diode load frame （16）It is provided with multiple diodes（11）, and adjacent diode（11）Pass through the diode radiating device of both sides（12）Electrical connection.
- 7. the transfer tributary unit of dc circuit breaker according to claim 6, it is characterised in that：The diode loading frame Frame（16）Pass through support insulator（13）With unit supports framework（9）It is fixedly connected.
- 8. the transfer tributary unit of dc circuit breaker according to claim 1, it is characterised in that：The unit supports framework （9）Periphery be provided with multiple radomes arranged apart（1）.
- 9. the transfer tributary unit of dc circuit breaker according to claim 3, it is characterised in that：The IGBT valves heap（2） It is provided with IGBT drive module（8）, the IGBT drive module（8）Pass through connector and IGBT module（5）Electrical connection.
- 10. the transfer tributary unit of dc circuit breaker according to claim 1, it is characterised in that：The unit supports frame Frame（9）Including isolation beam（10）With multiple beams of metals arranged apart, and the both ends of multiple beams of metals arranged apart respectively with Isolation beam（10）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720538586.6U CN206712451U (en) | 2017-05-16 | 2017-05-16 | A kind of transfer tributary unit of dc circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720538586.6U CN206712451U (en) | 2017-05-16 | 2017-05-16 | A kind of transfer tributary unit of dc circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206712451U true CN206712451U (en) | 2017-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720538586.6U Withdrawn - After Issue CN206712451U (en) | 2017-05-16 | 2017-05-16 | A kind of transfer tributary unit of dc circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206712451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086548A (en) * | 2017-05-16 | 2017-08-22 | 常州博瑞电力自动化设备有限公司 | A kind of transfer tributary unit of dc circuit breaker |
| CN107947535A (en) * | 2017-12-22 | 2018-04-20 | 清华四川能源互联网研究院 | A kind of superhigh voltage DC breaker power electronics tributary unit |
-
2017
- 2017-05-16 CN CN201720538586.6U patent/CN206712451U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086548A (en) * | 2017-05-16 | 2017-08-22 | 常州博瑞电力自动化设备有限公司 | A kind of transfer tributary unit of dc circuit breaker |
| CN107086548B (en) * | 2017-05-16 | 2019-06-07 | 常州博瑞电力自动化设备有限公司 | A kind of transfer tributary unit of dc circuit breaker |
| CN107947535A (en) * | 2017-12-22 | 2018-04-20 | 清华四川能源互联网研究院 | A kind of superhigh voltage DC breaker power electronics tributary unit |
| CN107947535B (en) * | 2017-12-22 | 2024-02-20 | 清华四川能源互联网研究院 | Power electronic branch unit of ultrahigh voltage direct current circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171205 Effective date of abandoning: 20190607 |
|
| AV01 | Patent right actively abandoned |