CN207530696U - A kind of water cooling (PCC) power of high-power double-feed current transformer - Google Patents
A kind of water cooling (PCC) power of high-power double-feed current transformer Download PDFInfo
- Publication number
- CN207530696U CN207530696U CN201721316655.5U CN201721316655U CN207530696U CN 207530696 U CN207530696 U CN 207530696U CN 201721316655 U CN201721316655 U CN 201721316655U CN 207530696 U CN207530696 U CN 207530696U
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- CN
- China
- Prior art keywords
- power
- pcc
- water cooling
- heat radiator
- igbt
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
A kind of water cooling (PCC) power of high-power double-feed current transformer, including two systems unit and a liquid cooling heat radiator.Two systems unit is arranged in the both sides of the liquid cooling heat radiator back-to-back respectively.Each system unit includes two IGBT modules, four snubber capacitances, one block of parallel drive plate, a piece of direct current composite bus bar, exchange stream row etc..The utility model can improve the power grade and power density of (PCC) power, meet needs of the Wind turbines to the (PCC) power of high power density, make wind electric converter compact-sized, maintain easily.
Description
Technical field
The utility model is related to a kind of water cooling (PCC) powers applied to high-power wind turbine double-feed current transformer.
Background technology
In the research and development and manufacturing process of wind energy converter, the design of (PCC) power is even more important.Due to the use of environment spy
Very, it is desirable that (PCC) power has the characteristics that compact-sized, easy to maintain, power density is high, and therefore, the function of (PCC) power is necessary
It is perfect.At present, (PCC) power is usually by multiple discrete IGBT module parallels, in conjunction with a considerable amount of DC filter capacitor groups
Into there are following defects for existing (PCC) power：
Due to the limitation of tower volume, traditional (PCC) power, it is impossible to meet the need of high power level and high power density
It asks；The direct parallel connection of excessive IGBT elements is unfavorable for reducing the stray inductance between DC filter capacitor and IGBT module, easily
Cause current-unbalance between IGBT module, and uneven flow problem brings many problems to structure design；Power grade is bigger,
Corresponding IGBT module and DC filter capacitor quantity are more, and volume and weight are too big, it has not been convenient to dismounting and maintenance.
Utility model content
The purpose of the utility model is to overcome prior art defects, propose a kind of powerful water cooling (PCC) power, this
Utility model can improve the power grade and power density of (PCC) power, meet power packages of the Wind turbines to high power density
The needs of part make wind electric converter compact-sized, maintain easily.
To achieve the above object, the utility model uses following technical scheme：
A kind of water cooling (PCC) power applied on high-power wind turbine double-feed current transformer, including two systems unit and one
Liquid cooling heat radiator.Two systems unit is arranged in the both sides of the liquid cooling heat radiator back-to-back respectively.Each system unit includes
Two IGBT modules, four snubber capacitances, one block of parallel drive plate, a piece of direct current composite bus bar, and exchange stream row.
The parallel drive plate can drive two IGBT modules simultaneously, by being bolted directly to IGBT module
Control pole on, avoid the interference that connecting wire is brought.
The exchange stream row links together the exchange end of two IGBT modules, exchange stream row intermediate projections,
For connecting external exchange connecting line.
Direct current composite bus bar is divided into anode busbar and cathode bus bar, and direct current composite bus bar is L-type.Direct current composite bus bar one end
Positive and negative electrode and the DC side positive and negative electrode of IGBT module be electrically connected respectively by bolt, junction is parallel with buffering and inhales respectively
Receive capacitance 3；The other end reserves four groups of pins altogether：Two groups of anode pins and two groups of negative pins, four groups of pins interlock homogeneous stack
Distribution, connect with common DC bus.This structure is conducive to carry high current, while effectively reduce system stray electrical again
Sense, busbar use hot-pressing, edge-sealing, are effectively guaranteed electric property.
Compared with the prior art, the advantageous effect of the (PCC) power system of the utility model is：
(1) DC filter capacitor is eliminated on the (PCC) power of the utility model, significantly reduces the weight of (PCC) power,
Easy disassembly and maintenance；
(2) (PCC) power of the utility model is installed two systems unit, is greatly reduced back-to-back by one piece of liquid cooling plate
Volume；
(3) the DC master row leading foot described in is effectively reduced and public direct-current mother also using the mentality of designing of lamination row
The stray inductance of line overlap joint.
Description of the drawings
The structure diagram of Fig. 1 the utility model；
Fig. 2 removes the structure diagram of protection side panel and front panel；
Fig. 3 (PCC) power exploded views.
Specific embodiment
As shown in Figure 1 and Figure 2：The (PCC) power of the utility model includes：Two systems unit and one piece of liquid cooling heat radiator 1,
Two systems unit is arranged in the both sides of the liquid cooling heat radiator 1 back-to-back respectively.Each system unit includes two IGBT moulds
3, one blocks of the snubber capacitance of block 2, four parallel drive plate 4, a piece of direct current composite bus bar 5 and exchange stream row 6.
As shown in Fig. 2, parallel drive plate 4 is placed on the top of two pieces of IGBT modules 2, two pieces of IGBT moulds can be driven simultaneously
Block 2.It is bolted in the control pole of two pieces of IGBT modules 2；IGBT module 2 is tightly attached to the installation of 1 surface of liquid cooling heat radiator,
Two IGBT modules 2 are used in parallel, are in line.Exchange stream row 6 links together the exchange end of two IGBT modules 2,
Exchange 6 intermediate projections of stream row, facilitate and connect external exchange connecting line, and exchange 6 high spot central symmetries of stream row are provided with four
The mounting hole of a M8, it is ensured that the exchange of two IGBT modules 2 is flowed.
As shown in Fig. 2, direct current composite bus bar 5 is L-type.One end of direct current composite bus bar 5 connects the positive and negative of IGBT module 2
Pole, the other end reserve four groups of pins altogether：Two groups of anode pins and two groups of negative pins, four groups of pins interlock homogeneous stack distribution,
It is connect with common DC bus.This structure is conducive to carry high current, while effectively reduce system stray inductance again.
As shown in Fig. 2, the DC side positive and negative electrode of IGBT module 2 passes through the positive and negative of bolt and direct current composite bus bar 5 respectively
Pole is electrically connected, and junction is parallel with snubber capacitance 3 respectively.
Bottom plate 7 is installed in the lower section of liquid cooling heat radiator 1, the dismounting of power cell has not only been facilitated to safeguard, but also protect liquid cold
Radiator 1.
As shown in Figure 1, for protection IGBT module 2 and parallel drive plate 4, upper plate 8 is installed in the top of liquid cooling heat radiator 1,
Protection side panel 9 is installed in the left and right sides；Front panel 10 and handle 11 are installed in the front of liquid cooling heat radiator 1, maintained easily.
Claims (6)
1. a kind of water cooling (PCC) power of high-power double-feed current transformer, it is characterised in that：The water cooling (PCC) power includes two
A system unit and a liquid cooling heat radiator (1)；Two systems unit is arranged in the liquid cooling heat radiator (1) back-to-back respectively
Both sides；Each system unit includes two IGBT modules (2), four snubber capacitances (3), one piece of parallel drive plate (4), one
Piece direct current composite bus bar (5) and exchange stream row (6)；Parallel drive plate (4) is placed on the top of two pieces of IGBT modules (2)；
IGBT module (2) is tightly attached to liquid cooling heat radiator (1) surface, and two IGBT modules (2) are in parallel, are in line；By two IGBT moulds
The exchange end of block (2) is linked together by exchanging stream row (6)；One end connection IGBT module (2) of direct current composite bus bar (5)
Positive and negative anodes, junction is parallel with snubber capacitance (3)；Four groups of pins of direct current composite bus bar (5) other end for two groups just
Pole pin and two groups of negative pins, four groups of pins interlock homogeneous stack distribution, connect with common DC bus.
2. water cooling (PCC) power as described in claim 1, it is characterised in that：The parallel drive plate (4) is consolidated by bolt
It is scheduled in the control pole of two pieces of IGBT modules (2), while drives two pieces of IGBT modules (2).
3. water cooling (PCC) power as described in claim 1, it is characterised in that：Row (6) intermediate projections are flowed in the exchange, use
External exchange connecting line is connected, the high spot central symmetry is provided with mounting hole, the exchange for making two IGBT modules (2) is equal
Stream.
4. water cooling (PCC) power as described in claim 1, it is characterised in that：The direct current composite bus bar (5) is L-type.
5. water cooling (PCC) power as described in claim 1, it is characterised in that：Bottom is installed below liquid cooling heat radiator (1)
Plate.
6. water cooling (PCC) power as described in claim 1, it is characterised in that：The top installation upper plate of liquid cooling heat radiator (1), it is left
Right both sides are installed by protection side panel, front installation front panel and handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721316655.5U CN207530696U (en) | 2017-10-13 | 2017-10-13 | A kind of water cooling (PCC) power of high-power double-feed current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721316655.5U CN207530696U (en) | 2017-10-13 | 2017-10-13 | A kind of water cooling (PCC) power of high-power double-feed current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207530696U true CN207530696U (en) | 2018-06-22 |
Family
ID=62568753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721316655.5U Expired - Fee Related CN207530696U (en) | 2017-10-13 | 2017-10-13 | A kind of water cooling (PCC) power of high-power double-feed current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207530696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030478A (en) * | 2019-12-26 | 2020-04-17 | 荣信汇科电气技术有限责任公司 | Flexible direct-current power module with multi-level explosion-proof and protection structure |
-
2017
- 2017-10-13 CN CN201721316655.5U patent/CN207530696U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030478A (en) * | 2019-12-26 | 2020-04-17 | 荣信汇科电气技术有限责任公司 | Flexible direct-current power module with multi-level explosion-proof and protection structure |
| CN111030478B (en) * | 2019-12-26 | 2022-01-04 | 荣信汇科电气股份有限公司 | Flexible direct-current power module with multi-level explosion-proof and protection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20211013 |