CN103618465A - Photovoltaic inversion set - Google Patents
Photovoltaic inversion set Download PDFInfo
- Publication number
- CN103618465A CN103618465A CN201310653260.4A CN201310653260A CN103618465A CN 103618465 A CN103618465 A CN 103618465A CN 201310653260 A CN201310653260 A CN 201310653260A CN 103618465 A CN103618465 A CN 103618465A
- Authority
- CN
- China
- Prior art keywords
- shrouding
- fixed
- heat
- photovoltaic inversion
- inversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Inverter Devices (AREA)
Abstract
Disclosed is a photovoltaic inversion set. The photovoltaic inversion set comprises inversion units and a heat dissipation device used for dissipating heat generated by the inversion units in the inversion process. Each inversion unit comprises a direct-current side, an alternating-current side, discrete switches and a driving module, wherein the direct-current side is provided with capacitors and laminated busbars, the alternating-current side is provided with alternating-current outgoing line banks, the discrete switches are connected between the laminated busbars and the alternating-current outgoing line banks, the driving module is used for driving the discrete switches, and the capacitors are fixed to the laminated busbars. The heat dissipation device comprises a heat dissipater and a centrifugal fan, wherein the heat dissipater comprises a plurality of heat sinks and further comprises heat dissipation substrates which are symmetrically located on the front side and rear side, the heat sinks are connected between the heat dissipation substrates on the front side and the rear side, and the discrete switches are installed on the heat dissipation substrates. Because the heat sinks and the heat dissipation substrates on the front side and the rear side form the I-shaped heat dissipater, the size is reduced manyfold, and the deign purposes of being small and light are achieved.
Description
Technical field
the present invention relates to a kind of photovoltaic inversion group for photovoltaic generating system.
Background technology
along with socioeconomic development, the continuous exploitation of the energy, progressively deepens global environmental pollution, and existing resource is also in continuous minimizing simultaneously.Therefore, the mankind start developing green new forms of energy.Through a large amount of research experiments, prove, solar energy is a kind of inexhaustible green novel energy source, and is not subject to regional limits, and energy conversion efficiency is very high.So it is subject to people's favor deeply, especially utilize solar power generation.Yet what photovoltaic array was exported is all direct current, and is mostly alternating current in practical application, so need a kind of copped wave inversion transformation technique (SPWM), realizes direct current and become interchange.
at present, photovoltaic inversion group, comprise the heat abstractor that inversion unit, the heat producing in inversion process for the inversion unit to described dispel the heat, described inversion unit comprise have electric capacity and stacked bus DC side, have exchange outlet row AC, be connected to described stacked bus and described exchange discrete switch between outlet row, for the driver module of the discrete switch described in driving, described electric capacity is fixed on described stacked bus, and described heat abstractor comprises radiator, the centrifugal blower with multi-disc fin.
many employing three phase full bridges integrated design in medium-and-large-sized photovoltaic inversion, i.e. all power devices, electric capacity, radiator, an integrated integral unit such as stacked bus, each radiator is by heat-radiating substrate, from the outwardly directed multi-disc fin of described heat-radiating substrate, form, if need to a plurality of inversion units are in parallel, can bring thus volume large, cabinet utilance is low, dispel the heat inhomogeneous, hand over straight/stream side current imbalance, on stacked bus, stray inductance is large, the operating mode of equipment is had to certain requirement, whole unit is heavier simultaneously, volume is large, be unfavorable for production efficiency, installation and maintenance.
Summary of the invention
the technical problem to be solved in the present invention is to provide a kind of photovoltaic inversion group.
in order to solve the problems of the technologies described above, a kind of technical scheme that the present invention adopts is: a kind of photovoltaic inversion group, comprise inversion unit, the heat abstractor dispelling the heat for the heat that described inversion unit is produced in inversion process, described inversion unit comprises the DC side with electric capacity and stacked bus, there is the AC that exchanges outlet row, be connected to described stacked bus and the described discrete switch between outlet row that exchanges, for driving the driver module of described discrete switch, described electric capacity is fixed on described stacked bus, described heat abstractor comprises the radiator with multi-disc fin, centrifugal blower, described radiator also comprises the heat-radiating substrate that is positioned at relatively symmetrically both sides, front and back, fin described in multi-disc is connected between the described heat-radiating substrate of both sides, front and back, described discrete switch is installed on described heat-radiating substrate.
in some embodiments, described discrete switch is a plurality of little current switch pipes parallel with one another.
in some further execution mode, described little current switch pipe is IGBT.
in some embodiments, described centrifugal blower is positioned at the below of described radiator, and the air outlet of described centrifugal blower is upwards facing to described fin.
in some embodiments, on the output of described stacked bus, be fixed with for interconnective stacked bus parallel connected end when two groups of photovoltaic inversion groups are in parallel.
in some embodiments, the negative pole of described laminated bus is near described discrete switch.
in some embodiments, described inversion unit has two groups, is arranged at relatively symmetrically the both sides, front and back of described radiator.
in some embodiments, described photovoltaic inversion group also comprises left fixed head and the right fixed head of the left and right sides portion that is individually fixed in described radiator, be positioned at the front shrouding of front side, be positioned at the rear shrouding of rear side, be positioned at the left shrouding in left side, bottom sealing plate between the bottom of the bottom of the front shrouding described in being fixed on and described rear shrouding, be positioned at the right shrouding on right side, described interchange outlet row is fixed on described left fixed head by insulator, on left fixed head described in described front shrouding and described rear shrouding are individually fixed in and described right fixed head, described right shrouding is fixed on described electric capacity, described front shrouding, described right shrouding, described rear shrouding and described left shrouding are mutually permanently connected, between described left shrouding and described base plate and the left air inlet and the right air inlet that form described centrifugal blower between described right shrouding and described base plate.
in some further execution mode, between described front shrouding and described fin, be fixed with upper front shoe described in the upper rear fixed plate that is fixed with inclination between the upper front shoe of inclination, described rear shrouding and described fin and described upper rear fixed plate and form from the bottom to top gradually large horn mouth of gradual change.
in some further execution mode, on described front shrouding, have the open front of stretching out for stacked bus, on described rear shrouding, have the after-opening stretching out for stacked bus, on described right shrouding, have the right opening stretching out for stacked bus, on described left shrouding, have the left opening stretching out for exchanging outlet row.
scope of the present invention, is not limited to the technical scheme that the particular combination of above-mentioned technical characterictic forms, and also should contain by above-mentioned technical characterictic or its equivalent feature and carry out combination in any and other technical scheme of forming simultaneously.The technical characterictic that has a similar functions such as disclosed in above-mentioned feature and the application (but being not limited to) is replaced mutually and technical scheme of forming etc.
because technique scheme is used, the present invention compared with prior art has following advantages: the heat-radiating substrate of fin and both sides, front and back forms I-shaped radiator, and volume reduces at double, has realized small and light design.
Accompanying drawing explanation
accompanying drawing 1 is the assembling schematic perspective view of two groups of inversion units and radiator;
accompanying drawing 2 is the assembling front-view schematic diagram of stacked bus, discrete switch, interchange outlet row and radiator;
accompanying drawing 3 is the assembling schematic perspective view of stacked bus, discrete switch, interchange outlet row, radiator and centrifugal blower;
accompanying drawing 4 is the assembling schematic top plan view of stacked bus, discrete switch, interchange outlet row and radiator;
accompanying drawing 5 is two groups of perspective view that photovoltaic inversion group is connected in parallel;
accompanying drawing 6 is the decomposing schematic representation of photovoltaic inversion group;
wherein: 11, radiator; 12, heat-radiating substrate; 13, fin; 14, centrifugal blower;
21, electric capacity; 22, stacked bus; 221, stacked bus parallel connected end; 23, discrete switch; 24, exchange outlet row;
31, left fixed head; 32, right fixed head; 33, front shrouding; 34, rear shrouding; 35, left shrouding; 36, right shrouding; 37, upper front shoe; 38, upper rear fixed plate; 39, insulator.
Embodiment
as shown in the drawings, a kind of photovoltaic inversion group, comprise inversion unit, the heat abstractor dispelling the heat for the heat that inversion unit is produced in inversion process, inversion unit comprises the DC side with electric capacity 21 and stacked bus 22, there is the AC that exchanges outlet row 24, be connected to stacked bus 22 and the discrete switch 23 exchanging between outlet row 24, for driving the driver module of discrete switch 23, electric capacity 21 is fixed on stacked bus 22, heat abstractor comprises the radiator 11 with multi-disc fin 13, centrifugal blower 14, radiator 11 also comprises the heat-radiating substrate 12 that is positioned at relatively symmetrically both sides, front and back, multi-disc fin 13 is connected between the heat-radiating substrate 12 of both sides, front and back, discrete switch 23 is installed on heat-radiating substrate 12.
on the output of stacked bus 22, be fixed with for interconnective stacked bus parallel connected end 221 when two groups of photovoltaic inversion groups are in parallel.When two groups of photovoltaic inversion groups are in parallel, in prior art, conventionally only having DC side input and AC to export can be in parallel, in this programme, except the parallel connection of DC side input and AC output, between simultaneously stacked bus 22 is mutual, has independently and connect, this design can reduce the impact of peak voltage to electric capacity, reduced stray inductance, effectively reduce the infringement of voltge surge to electric capacity, reduced the quantity of electric capacity simultaneously, reduce costs.
the negative pole of laminated bus is near discrete switch 23.Inversion unit has two groups, is arranged at relatively symmetrically the both sides, front and back of radiator 11.The stacked bus 22 that this inversion unit is used adopts full symmetric design, and negative pole is near discrete device, anodal in outside, negative pole, in the arrangement principle of inner side, has lowered the inductance coefficent of stacked bus 22, has reduced impedance, lower pressure drop, reduce the infringement of due to voltage spikes to element; AC also adopts full symmetric design, so that exchange the impedance equalization that output is, reaches the effect of current balance type.
as accompanying drawing 5, shown in accompanying drawing 6, photovoltaic inversion group also comprises the left fixed head 31 and right fixed head 32 of the left and right sides portion that is individually fixed in radiator 11, be positioned at the front shrouding 33 of front side, be positioned at the rear shrouding 34 of rear side, be positioned at the left shrouding 35 in left side, be fixed on the bottom sealing plate between the bottom of front shrouding 33 and the bottom of rear shrouding 34, be positioned at the right shrouding 36 on right side, exchanging outlet row 24 is fixed on left fixed head 31 by insulator 39, front shrouding 33 is individually fixed on left fixed head 31 and right fixed head 32 with rear shrouding 34, right shrouding 36 is fixed on electric capacity 21, front shrouding 33, right shrouding 36, rear shrouding 34 is mutually permanently connected with left shrouding 35, between left shrouding 35 and base plate and the left air inlet and the right air inlet that form centrifugal blower 14 between right shrouding 36 and base plate.
between front shrouding 33 and fin 13, be fixed with the upper rear fixed plate 38 that is fixed with inclination between upper front shoe 37, rear shrouding 34 and the fin 13 of inclination, upper front shoe 37 and upper rear fixed plate 38 form gradually large horn mouth of gradual change from the bottom to top.
on front shrouding 33, have the open front of stretching out for stacked bus 22, on rear shrouding 34, have the after-opening stretching out for stacked bus 22, on right shrouding 36, have the right opening stretching out for stacked bus 22, on left shrouding 35, have the left opening stretching out for exchanging outlet row 24.
on front shrouding 33, have for observing the front window of discrete switch 23, on front window, be covered with front little shrouding, on rear shrouding 34, have for observing the rear window of discrete switch 23, on rear window, be also covered with rear little shrouding.
part and the assembling sequence of this inversion unit are as follows, on the heat-radiating substrate 12 of radiator 11 both sides, front and back, IGBT are housed respectively, and left fixed head 31 is contained in respectively the radiator left and right sides with right fixed head 32; Insulator 39 is contained on left fixed head 31, exchanges outlet row one end and is connected to IGBT above, and middle part is fixed on insulator; Front shrouding 33 is fixed on left fixed head 31 and right fixed head 32; Rear shrouding 34 is fixed on left fixed head 31 and right fixed head 32; Electric capacity 21 is arranged on stacked bus 22 in advance, and electric capacity 21 other ends are fixed on right shrouding 36, form a module, and then integral body is fixed on IGBT above by this module one end, and centrifugal blower 14 is contained in radiator 11 bottoms; Upper front shoe 37 and upper rear fixed plate 38 are contained in respectively on fin 13 and front shrouding 33 and rear shrouding 34; Bottom sealing plate is connected between front shrouding 33 and rear shrouding 34; On front shrouding 33, there is front little shrouding; On rear shrouding 34, there is rear little shrouding.
i-shaped radiator, independently inversion unit employing symmetric mode is in parallel to allow two, and power is multiplied, and by driver module, controls discrete switching device, and the direct current of realizing photovoltaic array input is transformed into the three-phase alternating current being connected to the grid.Inversion unit adopts symmetric design, and the alternating current-direct current side of both sides all adopts full symmetric design, and both sides impedance is equated, has realized current-sharing; Separate connection between stacked bus, this inversion unit can be realized the mounting means of drawer type, has solved difficult problem in parallel.
as mentioned above, we are illustrated according to aim of the present invention completely, but the present invention is not limited to above-described embodiment and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope of technological thought license of the present invention.
Claims (10)
1. a photovoltaic inversion group, comprise inversion unit, the heat abstractor dispelling the heat for the heat that described inversion unit is produced in inversion process, described inversion unit comprises the DC side of have electric capacity (21) and stacked bus (22), the AC with interchange outlet row (24), be connected to described stacked bus (22) and the described discrete switch (23) between outlet row (24) that exchanges, for driving the driver module of described discrete switch (23), described electric capacity (21) is fixed on described stacked bus (22), described heat abstractor comprises the radiator (11) with multi-disc fin (13), centrifugal blower (14), it is characterized in that: described radiator (11) also comprises the heat-radiating substrate (12) that is positioned at relatively symmetrically both sides, front and back, fin described in multi-disc (13) is connected between the described heat-radiating substrate (12) of both sides, front and back, described discrete switch (23) is installed on described heat-radiating substrate (12).
2. photovoltaic inversion group according to claim 1, is characterized in that: described discrete switch (23) is a plurality of little current switch pipes parallel with one another.
3. photovoltaic inversion group according to claim 2, is characterized in that: described little current switch pipe is IGBT.
4. photovoltaic inversion group according to claim 1, is characterized in that: described centrifugal blower (14) is positioned at the below of described radiator (11), and the air outlet of described centrifugal blower (14) is upwards facing to described fin (13).
5. photovoltaic inversion group according to claim 1, is characterized in that: on the output of described stacked bus (22), be fixed with for interconnective stacked bus parallel connected end (221) when two groups of photovoltaic inversion groups are in parallel.
6. photovoltaic inversion group according to claim 1, is characterized in that: the negative pole of described laminated bus is near described discrete switch (23).
7. according to the photovoltaic inversion group described in any one in claim 1-6, it is characterized in that: described inversion unit has two groups, be arranged at relatively symmetrically the both sides, front and back of described radiator (11).
8. photovoltaic inversion group according to claim 1, it is characterized in that: described photovoltaic inversion group also comprises the left fixed head (31) and right fixed head (32) of the left and right sides portion that is individually fixed in described radiator (11), be positioned at the front shrouding (33) of front side, be positioned at the rear shrouding (34) of rear side, be positioned at the left shrouding (35) in left side, bottom sealing plate between the bottom of the bottom of the front shrouding (33) described in being fixed on and described rear shrouding (34), be positioned at the right shrouding (36) on right side, described interchange outlet row (24) is fixed on described left fixed head (31) by insulator (39), on left fixed head (31) described in described front shrouding (33) is individually fixed in described rear shrouding (34) and described right fixed head (32), described right shrouding (36) is fixed on described electric capacity (21), described front shrouding (33), described right shrouding (36), described rear shrouding (34) is mutually permanently connected with described left shrouding (35), between described left shrouding (35) and described base plate and the left air inlet and the right air inlet that form described centrifugal blower (14) between described right shrouding (36) and described base plate.
9. photovoltaic inversion group according to claim 8, it is characterized in that: between described front shrouding (33) and described fin (13), be fixed with the upper rear fixed plate (38) that is fixed with inclination between the upper front shoe (37) of inclination, described rear shrouding (34) and described fin (13), described upper front shoe (37) and described upper rear fixed plate (38) form gradually large horn mouth of gradual change from the bottom to top.
10. photovoltaic inversion group according to claim 8, it is characterized in that: on described front shrouding (33), have the open front of stretching out for stacked bus (22), on described rear shrouding (34), have the after-opening stretching out for stacked bus (22), on described right shrouding (36), have the right opening stretching out for stacked bus (22), on described left shrouding (35), have the left opening stretching out for exchanging outlet row (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653260.4A CN103618465A (en) | 2013-12-05 | 2013-12-05 | Photovoltaic inversion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653260.4A CN103618465A (en) | 2013-12-05 | 2013-12-05 | Photovoltaic inversion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103618465A true CN103618465A (en) | 2014-03-05 |
Family
ID=50169168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310653260.4A Pending CN103618465A (en) | 2013-12-05 | 2013-12-05 | Photovoltaic inversion set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103618465A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5930112A (en) * | 1995-09-29 | 1999-07-27 | Allen-Bradley Company, Llc | Circuit board architecture for a motor controller |
| CN201466980U (en) * | 2009-08-23 | 2010-05-12 | 山西科达自控工程技术有限公司 | Brake unit and power unit integrated power module |
| CN201682403U (en) * | 2010-04-16 | 2010-12-22 | 常州佳讯光电产业发展有限公司 | Modularized structure device of inverter unit in photovoltaic inverter |
| CN102916601A (en) * | 2012-10-22 | 2013-02-06 | 江苏兆伏新能源有限公司 | Photovoltaic inversion unit and triphase photovoltaic inversion device |
| CN103068209A (en) * | 2012-12-26 | 2013-04-24 | 天津电气传动设计研究所有限公司 | Compact type power unit with good heat dissipation |
| CN203617912U (en) * | 2013-12-05 | 2014-05-28 | 江苏兆伏新能源有限公司 | Photovoltaic inverter group |
-
2013
- 2013-12-05 CN CN201310653260.4A patent/CN103618465A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5930112A (en) * | 1995-09-29 | 1999-07-27 | Allen-Bradley Company, Llc | Circuit board architecture for a motor controller |
| CN201466980U (en) * | 2009-08-23 | 2010-05-12 | 山西科达自控工程技术有限公司 | Brake unit and power unit integrated power module |
| CN201682403U (en) * | 2010-04-16 | 2010-12-22 | 常州佳讯光电产业发展有限公司 | Modularized structure device of inverter unit in photovoltaic inverter |
| CN102916601A (en) * | 2012-10-22 | 2013-02-06 | 江苏兆伏新能源有限公司 | Photovoltaic inversion unit and triphase photovoltaic inversion device |
| CN103068209A (en) * | 2012-12-26 | 2013-04-24 | 天津电气传动设计研究所有限公司 | Compact type power unit with good heat dissipation |
| CN203617912U (en) * | 2013-12-05 | 2014-05-28 | 江苏兆伏新能源有限公司 | Photovoltaic inverter group |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202034891U (en) | Full-water-cooling power module | |
| CN205081667U (en) | IGBT power modular structure that connects in parallel | |
| CN201690342U (en) | Inverter air-cooled heat dissipation system structure | |
| CN106329952A (en) | Power module | |
| CN104201866B (en) | Insulated gate bipolar transistor three-level power cabinet | |
| CN106329951A (en) | Power cabinet of wind power converter | |
| CN104201867A (en) | Three-level IGBT power cabinet based on heat pipe radiator | |
| CN102957326A (en) | Modularized structure for three-level inverter for wind power generation | |
| CN203574996U (en) | Integrated vertical air cooling heat radiation air duct for electrostatic precipitator-used high-frequency power supply | |
| CN202663281U (en) | Large-power current transformer power module structure | |
| CN204425196U (en) | A kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter | |
| CN110943599B (en) | Multifunctional efficient power unit and power circuit thereof | |
| CN206117523U (en) | Power module | |
| JP6804543B2 (en) | Power converter, cooling structure, power conversion system and power supply | |
| CN203617912U (en) | Photovoltaic inverter group | |
| CN202405648U (en) | Air-cooled radiating system of photovoltaic power generation inverter cabinet | |
| CN205092758U (en) | Power module | |
| CN202652082U (en) | Large power solar energy three-phase grid connected inverter | |
| CN102916601A (en) | Photovoltaic inversion unit and triphase photovoltaic inversion device | |
| CN103618465A (en) | Photovoltaic inversion set | |
| CN203040087U (en) | Heat dissipation apparatus for inverter and solar energy inverter | |
| CN202949371U (en) | Insulated gate bipolar transistor water-cooling inversion device | |
| CN102723878A (en) | High-power solar three-phase grid-connected inverter | |
| CN205755244U (en) | Air-cooled, the electricity feedback servosystem of water-cooling of a kind of independent ventiduct | |
| CN211127537U (en) | Power module with novel composite busbar structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SMA NEW ENERGY TECHNOLOGY (SHANGHAI) AG Free format text: FORMER OWNER: JIANGSU ZOF NEW ENERGY CO., LTD. Effective date: 20150430 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 212200 ZHENJIANG, JIANGSU PROVINCE TO: 200000 PUDONG NEW AREA, SHANGHAI |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20150430 Address after: 200000, 7, 701, 707B building, Zhongjian building, No. 1568 Century Avenue, Shanghai, Pudong New Area Applicant after: Aisima new energy technology (Shanghai) Co., Ltd. Address before: 212200 Yangzhong City, Jiangsu Province Economic Development Zone, Hong Xing Road, No. 588, No. Applicant before: Jiangsu Zof New Energy Co., Ltd. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140305 |