CN203416178U - Photovoltaic power module system - Google Patents
Photovoltaic power module system Download PDFInfo
- Publication number
- CN203416178U CN203416178U CN201320509916.0U CN201320509916U CN203416178U CN 203416178 U CN203416178 U CN 203416178U CN 201320509916 U CN201320509916 U CN 201320509916U CN 203416178 U CN203416178 U CN 203416178U
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- Prior art keywords
- igbt
- bus bar
- composite bus
- heat exchanger
- photovoltaic power
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- 239000002131 composite material Substances 0.000 claims abstract description 54
- 239000003990 capacitor Substances 0.000 claims abstract description 51
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 34
- 239000010409 thin film Substances 0.000 claims description 31
- 238000010521 absorption reaction Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000306 component Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Inverter Devices (AREA)
Abstract
The utility model relates to a photovoltaic power module system. The photovoltaic power module system comprises an L-shaped DC connecting composite bus, a DC filtering capacitor assembly and an IGBT module power unit, wherein the DC filtering capacitor assembly and the IGBT module power unit are in fastening connection with the L-shaped DC composite bus. The power module system provided by the utility model meets design requirements of high power level and high power density, enables equipment to be smaller in overall size, lower in cost and more convenient to install and disassemble, and improves the production efficiency.
Description
Technical field
The utility model relates to big-power solar inverter, particularly relates to a kind of photovoltaic power module system.
Background technology
Current, solar inverter is as solar power generation core component, and power grade and power density require more and more higher, and Whole Equipment volume is more and more less, thus require its core component IGBT power model compact conformation, easy to maintenance, power density is high.
In existing photovoltaic power module structure, there is following defect: the quantity of the electrochemical capacitor that use electrochemical capacitor needs is huge, causes the huge structure of power model loose; Use thin-film capacitor because the volume and weight of thin-film capacitor is larger, existing IGBT module is structurally difficult to DC filtering thin-film capacitor and IGBT device to be installed together, cause between DC filtering thin-film capacitor and IGBT element stray inductance very large, easily produce excessive DC ripple electric current, cause DC filtering thin-film capacitor overload to damage.Because the power density of present power model is very high, when using air-cooled design, be difficult to meet the heat radiation requirement of IGBT and DC filter capacitor simultaneously, cause DC filter capacitor radiating effect undesirable, cause its life-span to be reduced, thereby affect the use of whole IGBT power model.
Summary of the invention
For above the deficiencies in the prior art, the utility model provides a kind of photovoltaic rate modular system structure, when meeting compact conformation, convenient for maintaining, solve the prior art defects such as the DC ripple electric current that existing IGBT power model exists is excessive, the heat radiation of DC filtering thin-film capacitor is bad, the life-span is short, reduce manufacturing cost and the maintenance cost of IGBT module simultaneously, and make power cell and capacitance component realize generalization and standardization.
The purpose of this utility model is achieved through the following technical solutions:
A kind of photovoltaic power module system, this photovoltaic power module system comprises that plate L-type direct current connects composite bus bar, DC filter capacitor assembly and IGBT modular power cells, and described DC filter capacitor assembly and IGBT modular power cells and L-type direct current composite bus bar are fastenedly connected.
Further, described IGBT modular power cells is positioned at a side of L-type direct current composite bus bar, and the direct current positive-negative input end of this IGBT modular power cells is connected composite bus bar positive-negative output end with described L-type direct current connects.
Further, described DC filter capacitor assembly is positioned at a side of L-type composite bus bar, and the electric capacity port of this capacitance component is connected composite bus bar link with L-type direct current connects.
Further, described IGBT modular power cells comprises liquid cooling heat exchanger, the first and second composite bus rows, the first and second IGBT (PCC) powers, described the first and second bus bars, the first and second IGBT (PCC) powers are the both sides that are arranged on liquid cooling heat exchanger of symmetry respectively.
Further, described power cell also comprises the holder that is arranged at described liquid cooling heat exchanger bottom and the liquid cooling heat exchanger fixture that is arranged at described liquid cooling heat exchanger top.
Further, a described IGBT (PCC) power comprises respectively IGBT module, the IGBT drive plate that connects IGBT module, exchange output copper bar, a plurality of DC filtering thin-film capacitors, the first composite bus bar, noninductive Absorption Capacitance, described IGBT module one side is disposed with described composite bus bar, IGBT drive plate, exchanges output copper bar, described IGBT module is connected with described composite bus bar, described noninductive Absorption Capacitance is arranged on described IGBT module and described composite bus bar link, and described DC filtering thin-film capacitor is arranged on the below of described composite bus bar.
Further, described the 2nd IGBT (PCC) power comprises respectively IGBT module, the IGBT drive plate that connects IGBT module, exchange output copper bar, a plurality of DC filtering thin-film capacitors, the second composite bus bar, noninductive Absorption Capacitance, described IGBT module one side is disposed with described composite bus bar, IGBT drive plate, exchanges output copper bar, described IGBT module is connected with described composite bus bar, described noninductive Absorption Capacitance is arranged on described IGBT module and described composite bus bar link, and described DC filtering thin-film capacitor is arranged on the below of described composite bus bar.
Further, the positive and negative level output of described composite bus bar is concordant with described liquid cooling heat exchanger rear side.
Further, described liquid cooling heat exchanger is tabular liquid cooling heat exchanger.
Further, above a described IGBT (PCC) power or around without sealing baffle.
The utility model has the advantage of:
The utility model meets the designing requirement of high power level, high power density, makes equipment machine volume less, and cost is lower, and installing/dismounting is more convenient, has improved production efficiency; Structurally IGBT and DC filtering thin-film capacitor are close to and are arranged on tabular liquid cooling heat exchanger, solved the DC filtering thin-film capacitor bad problem of dispelling the heat, improved DC filtering thin-film capacitor useful life; Compact conformation, effectively reduces the stray inductance between DC filtering thin-film capacitor and IGBT module.
Accompanying drawing explanation
Fig. 1 is the stereogram of a kind of embodiment of the utility model photovoltaic rate modular system structure.
Fig. 2 is the front view of the IGBT piece power cell in the utility model photovoltaic rate modular system structure chart 1 embodiment.
Fig. 3 is the stereogram of the DC filter capacitor assembly in the utility model photovoltaic rate modular system structure chart 1 embodiment.
Embodiment
The utility model photovoltaic rate modular system structure as shown in Figure 1, this photovoltaic power module system configuration comprises that plate L-type direct current connects 9,3 IGBT modular power cells 7 of 8,3 DC filter capacitor assemblies of composite bus bar.The direct current positive-negative input end of IGBT modular power cells 7 is connected in the positive-negative output end that L-type direct current connects composite bus bar 8, is positioned at the right that L-type direct current connects composite bus bar 8; DC filter capacitor assembly 9 is positioned at the below that L-type direct current connects composite bus bar 8, and its electric capacity port is connected composite bus bar 8 link with L-type direct current connects.
Shown in Fig. 2, the IGBT modular power cells 7 in the utility model photovoltaic rate modular system structure, comprises tabular liquid cooling heat exchanger 2, an IGBT (PCC) power 4, the 2nd IGBT (PCC) power 3, liquid cooling heat exchanger holder 1 and liquid cooling heat exchanger fixture 5; Wherein an IGBT assembly 4 comprises the IGBT drive plate 35 of IGBT module 31, connection IGBT module, exchanges output copper bar 36, DC filtering thin-film capacitor 33, the first composite bus bar 41, noninductive Absorption Capacitance 34; The 2nd IGBT assembly 3 comprises IGBT module 31, connects the IGBT drive plate 35 of IGBT module, exchanges output copper bar 36, DC filtering thin-film capacitor 33, the second composite bus bar 32, noninductive Absorption Capacitance 34;
Tabular liquid cooling heat exchanger 2 is vertically arranged on liquid cooling heat exchanger holder 1, liquid cooling heat exchanger fixture 5 is installed on tabular liquid cooling heat exchanger 2 tops, and liquid cooling heat exchanger holder 1 and liquid cooling heat exchanger fixture 5 play location fixation in IGBT modular power cells.In other case study on implementation, can shift one's position according to the actual demand of structural design.
The one IGBT (PCC) power 4 is arranged on tabular liquid cooling heat exchanger 2 one sides, the 2nd IGBT (PCC) power 3 is arranged on tabular liquid cooling heat exchanger 2 opposite sides;
The first composite bus bar 41 in the one IGBT assembly 4, the IGBT drive plate 35 that connects IGBT module 31, interchange output copper bar 36 are arranged on IGBT module 31 tops in order, noninductive Absorption Capacitance 34 is connected on IGBT module 31 and the first composite bus bar 41 links, DC filtering thin-film capacitor 33 is connected to the below link of the first composite bus bar 41, DC filtering thin-film capacitor 33 interface end are connected with the first composite bus bar 41 links, and DC filtering thin-film capacitor 33 bottom surfaces and shape liquid cooling heat exchanger 2 side surfaces are affixed and are fixedly connected on this shape liquid cooling heat exchanger.
The second composite bus bar 32 in the 2nd IGBT assembly 3, the IGBT drive plate 35 that connects IGBT module 31, interchange output copper bar 36 are arranged on IGBT module 31 tops in order, noninductive Absorption Capacitance 34 is connected on IGBT module 31 and the second composite bus bar 32 links, DC filtering thin-film capacitor 33 is connected to the below link of the second composite bus bar 32, DC filtering thin-film capacitor 33 interface end are connected with the second composite bus bar 32 links, and DC filtering thin-film capacitor 33 bottom surfaces and shape liquid cooling heat exchanger 2 side surfaces are affixed and are fixedly connected on this shape liquid cooling heat exchanger.
As shown in Figure 3, the DC filter capacitor assembly 9 in the utility model photovoltaic rate modular system structure, comprises 3 film square electric capacity 91, electric capacity fixed head 92; Film square electric capacity 91 use fastening nuts are on electric capacity fixed head 92.
In the present embodiment, DC filtering thin-film capacitor 33 bottom surfaces and shape liquid cooling heat exchanger 2 side surfaces are affixed and are fixedly connected on this shape liquid cooling heat exchanger, be conducive to 33 heat radiations of DC filtering thin-film capacitor, in other embodiments, DC filtering thin-film capacitor 33 can change electrochemical capacitor or change DC filtering thin-film capacitor 33 quantity and installation site into, also can realize the object of the invention.
In the present embodiment, noninductive Absorption Capacitance 34 is connected on IGBT module 31 and composite bus bar link, and effect is to reduce IGBT module 31 due to voltage spikes values, guarantees IGBT module 31 work safetys.
In other embodiments, DC filter capacitor component count can change as required, and the square DC filtering thin-film capacitor in DC filter capacitor assembly changes electrochemical capacitor or change quantity into, also can realize the object of the invention.
Should be appreciated that the above detailed description of technical scheme of the present invention being carried out by preferred embodiment is illustrative and not restrictive.Those of ordinary skill in the art modifies reading the technical scheme that can record each embodiment on the basis of specification of the present invention, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a photovoltaic power module system, it is characterized in that, this photovoltaic power module system comprises that plate L-type direct current connects composite bus bar, DC filter capacitor assembly and IGBT modular power cells, and described DC filter capacitor assembly and IGBT modular power cells and L-type direct current composite bus bar are fastenedly connected.
2. a kind of photovoltaic power module system according to claim 1, it is characterized in that, described IGBT modular power cells is positioned at a side of L-type direct current composite bus bar, and the direct current positive-negative input end of this IGBT modular power cells is connected composite bus bar positive-negative output end with described L-type direct current connects.
3. a kind of photovoltaic power module system according to claim 1, is characterized in that, described DC filter capacitor assembly is positioned at a side of L-type composite bus bar, and the electric capacity port of this capacitance component is connected composite bus bar link with L-type direct current connects.
4. a kind of photovoltaic power module system according to claim 1, it is characterized in that, described IGBT modular power cells comprises liquid cooling heat exchanger, the first and second composite bus rows, the first and second IGBT (PCC) powers, described the first and second bus bars, the first and second IGBT (PCC) powers are the both sides that are arranged on liquid cooling heat exchanger of symmetry respectively.
5. a kind of photovoltaic power module system according to claim 4, is characterized in that, described power cell also comprises the holder that is arranged at described liquid cooling heat exchanger bottom and the liquid cooling heat exchanger fixture that is arranged at described liquid cooling heat exchanger top.
6. a kind of photovoltaic power module system according to claim 4, it is characterized in that, a described IGBT (PCC) power comprises respectively IGBT module, the IGBT drive plate that connects IGBT module, exchange output copper bar, a plurality of DC filtering thin-film capacitors, the first composite bus bar, noninductive Absorption Capacitance, described IGBT module one side is disposed with described composite bus bar, IGBT drive plate, exchange output copper bar, described IGBT module is connected with described composite bus bar, described noninductive Absorption Capacitance is arranged on described IGBT module and described composite bus bar link, described DC filtering thin-film capacitor is arranged on the below of described composite bus bar.
7. a kind of photovoltaic power module system according to claim 4, it is characterized in that, described the 2nd IGBT (PCC) power comprises respectively IGBT module, the IGBT drive plate that connects IGBT module, exchange output copper bar, a plurality of DC filtering thin-film capacitors, the second composite bus bar, noninductive Absorption Capacitance, described IGBT module one side is disposed with described composite bus bar, IGBT drive plate, exchange output copper bar, described IGBT module is connected with described composite bus bar, described noninductive Absorption Capacitance is arranged on described IGBT module and described composite bus bar link, described DC filtering thin-film capacitor is arranged on the below of described composite bus bar.
8. according to a kind of photovoltaic power module system described in claim 6 or 7, it is characterized in that, the positive and negative level output of described composite bus bar is concordant with described liquid cooling heat exchanger rear side.
9. according to a kind of photovoltaic power module system described in claim 6 or 7, it is characterized in that, described liquid cooling heat exchanger is tabular liquid cooling heat exchanger.
10. according to a kind of photovoltaic power module system described in claim 6 or 7, it is characterized in that, above a described IGBT (PCC) power or around without sealing baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509916.0U CN203416178U (en) | 2013-08-20 | 2013-08-20 | Photovoltaic power module system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509916.0U CN203416178U (en) | 2013-08-20 | 2013-08-20 | Photovoltaic power module system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203416178U true CN203416178U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320509916.0U Expired - Lifetime CN203416178U (en) | 2013-08-20 | 2013-08-20 | Photovoltaic power module system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203416178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119467A (en) * | 2015-08-28 | 2015-12-02 | 洛阳中重自动化工程有限责任公司 | Multi-parallel IGBT vertical type composite busbar for explosion-proof frequency converter and method |
-
2013
- 2013-08-20 CN CN201320509916.0U patent/CN203416178U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119467A (en) * | 2015-08-28 | 2015-12-02 | 洛阳中重自动化工程有限责任公司 | Multi-parallel IGBT vertical type composite busbar for explosion-proof frequency converter and method |
| CN105119467B (en) * | 2015-08-28 | 2018-07-17 | 洛阳中重自动化工程有限责任公司 | Multi-parallel IGBT vertical type composite busbar for explosion-proof frequency converter and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
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| CX01 | Expiry of patent term |