CN202917839U - Photovoltaic inverter - Google Patents
Photovoltaic inverter Download PDFInfo
- Publication number
- CN202917839U CN202917839U CN 201220570223 CN201220570223U CN202917839U CN 202917839 U CN202917839 U CN 202917839U CN 201220570223 CN201220570223 CN 201220570223 CN 201220570223 U CN201220570223 U CN 201220570223U CN 202917839 U CN202917839 U CN 202917839U
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- power cell
- reactor
- filter
- cabinet
- power
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- Expired - Lifetime
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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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Abstract
The present utility model relates to a photovoltaic inverter. The photovoltaic inverter comprise a cabinet body, a first DC input unit, a second DC input unit, a power distribution unit, a first DC filter, a second DC filter, a first power unit, a second power unit, a third power unit, a fourth power unit, a fifth power unit, a sixth power unit, a first reactor, a second reactor, a third reactor, an AC contactor, an AC filter, a control unit and an AC output unit, as the above modules are arranged back to back, width and the depth dimensions of a cabinet are fully saved, the height dimension of the cabinet is utilized to the greatest extent, and the whole volume is greatly reduced. Moreover, as the power modules are arranged back to back, all devices need to be maintained are arranged on the front and rear sides of the cabinet, maintenance can be realized after front and rear doors are opened, and the operation is simple and convenient.
Description
Technical field
The utility model belongs to the electric power system field, relates to a kind of photovoltaic DC-to-AC converter.
Background technology
Photovoltaic DC-to-AC converter is the direct current that solar components produces to be changed into can be transported to electrical network or for a kind of electric equipment of user's alternating current voluntarily.High-power photovoltaic inverter is because it is subject to the restriction that higher heat radiation requires, the following problem of high-power photovoltaic inverter topology layout ubiquity in the market in design:
1, volume is large.Be generally with the photovoltaic DC-to-AC converter size of the described equipment same specification of this patent: width 2400mm-2600mm, about degree of depth 850mm, about height 2200mm.So the equipment of large volume need very large haulage equipment just can finish work such as producing carrying and on-the-spot installation in position, and a lot of factory does not often have such condition, and is often less such as the size of lift car, and passageway, entry door are often narrower etc.
2, maintenance maintenance inconvenience.More common distribution form is that the power cell side direction is placed, to save the complete machine width dimensions.But power cell is the highest parts of complete machine maintenance maintenance frequency exactly, and after the side, power cell can not directly be opened the cabinet door from front-face maintaining, must then just can carry out the maintenance maintenance operation first with its extraction, time-consuming again effort.
3, layout is loose, and is in disorder.Common distribution form does not mark off each functional area clearly, therefore aobvious integral layout is loose, space availability ratio is low, and Wiring technique is poor.
Summary of the invention
For solving the present technical problem that the photovoltaic DC-to-AC converter volume is large, maintenance and repair is inconvenient, the utility model provides a kind of volume little, the photovoltaic DC-to-AC converter that convenient for maintaining is safeguarded.
Technical solution of the present utility model is as follows:
A kind of photovoltaic DC-to-AC converter, comprise cabinet 1, the first continuous input cell 2, the second continuous input cell 3, power supply unit 4, the first DC filter 13, the second DC filter 14, the first power cell 5, the second power cell 6, the 3rd power cell 7, the 4th power cell 8, the 5th power cell 9, the 6th power cell 10, the first reactor 11, the second reactor 12, the 3rd reactor 15, A.C. contactor 16, alternating current filter 19, control unit 18, interchange output unit 17, its special character is:
Described cabinet 1 interior space is divided into first minute cabinet 1A and second minute cabinet 1B, and the front and back of described first minute cabinet 1A and second minute cabinet 1B is provided with the cabinet door, and is two-layer about cabinet divided in described first minute,
Described the first power cell 5, the second power cell 6, the 3rd power cell 7 upper stratas in first minute cabinet placed side by side are positive;
Described the 4th power cell 8, the 5th power cell 9, the 6th power cell 10 are placed side by side in the back side, upper strata of first minute cabinet,
Described the first continuous input cell 2, power supply unit 4, the second continuous input cell 3, to be positioned over successively the lower floor of first minute cabinet 1A from left to right positive;
Described the first reactor 11, the second reactor 12, the first DC filter 13, the second DC filter 14 are placed on the lower floor back side of first minute cabinet 1A, and the first DC filter 13 is positioned over the top of the first reactor 11, the top that the second DC filter 14 is placed the second reactor 12
Described control unit 18, alternating current filter 19, interchange output unit 17 are successively set on the front of second minute cabinet from top to bottom; Described A.C. contactor 16, the 3rd reactor 15 are placed on the back side of second minute cabinet from top to bottom successively.
Above-mentioned the first continuous input cell 2 is in series by the first dc switch K1 and the first DC filter 13, described the second continuous input cell is in series by the second dc switch K2 and the second DC filter 14, the output of described the first DC filter 13 and the second DC filter 14 is in parallel
Described the first power cell 5, the second power cell 6, the 3rd power cell 7 are in parallel successively and form the first power cell group, described the 4th power cell 8, the 5th power cell 9, the 6th power cell 10 are in parallel successively and form the second power cell group, described the first power cell group and the second power cell group are in parallel and form power cell group in parallel, the first DC filter 13 after the input of described power cell group in parallel and the parallel connection be connected the output of DC filter 14 and be connected;
The output of described the first power cell 5, the second power cell 6, the 3rd power cell 7 links to each other with the input of the first reactor 11, the output of described the 4th power cell 8, the 5th power cell 9, the 6th power cell 10 links to each other with the input of the second reactor 12, the output of the output of described the first reactor 11 and the second reactor 12 is in parallel
After the output parallel connection of described the first reactor 11 and the second reactor 12 successively with the 3rd reactor 15, A.C. contactor 16, alternating current filter 19, alternating-current switch K3, exchange output unit 17 and be in series.The beneficial effects of the utility model:
1, the utility model photovoltaic DC-to-AC converter is designed to width with power cell and depth dimensions is little, and the relatively large version of height dimension, and install back-to-back, width and the depth dimensions of rack have fully been saved, at utmost utilized the height dimension of rack, thereby the volume of complete machine is significantly dwindled.Simultaneously, because power model adopts back-to-back layout designs, all devices of safeguarding that need repairing all are arranged in cabinet front and back, open front/rear door and can carry out maintenance maintenance, and are simple and convenient.
2, the utility model photovoltaic DC-to-AC converter has been done detailed careful zone to each functional area of complete machine and has been divided according to the circuit connecting relation between each building block, so that the complete machine layout is compacter, has improved space availability ratio.And most of electrical connection adopts copper bus-bar to connect, and Wiring technique improves greatly.
Description of drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is rearview of the present utility model;
Fig. 3 is left view of the present utility model;
Fig. 4 is circuit diagram of the present utility model;
Reference numeral is: the 1-cabinet, first minute cabinet of 1A-, second minute cabinet of 1B-, 2-the first continuous input cell, 3-the second continuous input cell, the 4-power supply unit, 5-the first power cell, 6-the second power cell, 7-the 3rd power cell, 8-the 4th power cell, 9-the 5th power cell, 10-the 6th power cell, 11-the first reactor, 12-the second reactor, 13-the first DC filter, 14-the second DC filter, 15-the 3rd reactor, the 16-A.C. contactor, 17-exchanges output unit, the 19-alternating current filter, the 18-control unit, K1-the first dc switch, K2-the second dc switch, the K3-alternating-current switch.
Embodiment
Power cell is designed to width to the utility model and depth dimensions is little, and the relatively large version of height dimension, and install back-to-back, simultaneously, each power model also adopts back-to-back layout designs, and all devices of safeguarding that need repairing all are arranged in cabinet front and back.
As Figure 1-3, cabinet 1 interior space separates with dividing plate and is divided into first minute cabinet 1A and second minute cabinet 1B, the front and back of first minute cabinet and second minute cabinet is provided with the cabinet door, the first power cell 5, the second power cell 6, the 3rd power cell 7 and the 4th power cell 8, the 5th power cell 9, the 6th power cell 10 back-to-back tops that are positioned over first minute cabinet 1A.
The first continuous input cell 2, the second continuous input cell 3, power supply unit 4 and the first reactor 11, the second reactor 12, the first DC filter 13, the second DC filter 14 back-to-back belows that are positioned over first minute cabinet.
Be placed with the 3rd reactor 15, A.C. contactor 16, alternating current filter 19, control unit 18 in second minute cabinet, exchange output unit 17, the 3rd reactor 15, A.C. contactor 16 with alternating current filter 19, control unit 18, exchange output unit 17 back-to-back placements, A.C. contactor 16 is positioned at the top of the 3rd reactor 15, alternating current filter 19 is positioned at the top that exchanges output unit, and control unit is positioned at the top of A.C. contactor 19.
The utility model photovoltaic DC-to-AC converter has been done detailed careful zone to each functional area of complete machine and has been divided according to the circuit connecting relation between each building block, and the circuit connecting relation of each parts is as follows:
The first continuous input cell 2 is in series by the first dc switch K1 and the first DC filter 13, the second continuous input cell 3 is in series by the second dc switch K2 and the second DC filter 14, and the output of the first DC filter 13 and the second DC filter 14 is in parallel.
The first power cell 5, the second power cell 6, the 3rd power cell 7 are in parallel successively and form the first power cell group, the 4th power cell 8, the 5th power cell 9, the 6th power cell 10 are in parallel successively and form the second power cell group, the first power cell group and the second power cell group are in parallel and form power cell group in parallel, the first DC filter 13 after the input of power cell group in parallel and the parallel connection be connected the output of DC filter 14 and be connected.
The output of the first power cell 5, the second power cell 6, the 3rd power cell 7 links to each other with the input of the first reactor 11, the output of the 4th power cell 8, the 5th power cell 9, the 6th power cell 10 links to each other with the input of the second reactor 12, the output of the output of the first reactor 11 and the second reactor 12 is in parallel, after the output parallel connection of the first reactor 11 and the second reactor 12 successively with the 3rd reactor 15, A.C. contactor 16, alternating current filter 19, alternating-current switch K3, exchange output unit 17 and be in series.
The utility model has fully been saved width and the depth dimensions of rack, has at utmost utilized the height dimension of rack.Thereby the volume of complete machine is significantly dwindled, and wide is 2000mm, dark 800mm, high 2085mm.
When making above improvement, the cooling system of complete machine comprises ventilation quantity, radiator, cooling fan etc. all with market on like product be as good as, obtained a large amount of practical proofs, can satisfy instructions for use.
Claims (2)
1. photovoltaic DC-to-AC converter, comprise cabinet (1), the first continuous input cell (2), the second continuous input cell (3), power supply unit (4), the first DC filter (13), the second DC filter (14), the first power cell (5), the second power cell (6), the 3rd power cell (7), the 4th power cell (8), the 5th power cell (9), the 6th power cell (10), the first reactor (11), the second reactor (12), the 3rd reactor (15), A.C. contactor (16), alternating current filter (19), control unit (18), exchange output unit (17), it is characterized in that:
Described cabinet 1 interior space is divided into first minute cabinet (1A) and second minute cabinet (1B), described first minute cabinet (1A) and second minute cabinet (1B) front and back be provided with the cabinet door, it is two-layer up and down that described first minute cabinet divides,
Described the first power cell (5), the second power cell (6), the 3rd power cell (7) upper strata in first minute cabinet placed side by side is positive;
Described the 4th power cell (8), the 5th power cell (9), the 6th power cell (10) are placed side by side in the back side, upper strata of first minute cabinet,
Described the first continuous input cell (2), power supply unit (4), the second continuous input cell (3), from left to right be positioned over successively first minute cabinet (1A) lower floor positive;
Described the first reactor (11), the second reactor (12), the first DC filter (13), the second DC filter (14) be placed on first minute cabinet (1A) the lower floor back side, and the first DC filter (13) is positioned over the top of the first reactor (11), the second DC filter (14) is placed the top of the second reactor (12)
Described control unit (18), alternating current filter (19), interchange output unit (17) are successively set on the front of second minute cabinet from top to bottom; Described A.C. contactor (16), the 3rd reactor (15) are placed on the back side of second minute cabinet from top to bottom successively.
2. a kind of photovoltaic DC-to-AC converter according to claim 1, it is characterized in that: described the first continuous input cell (2) is in series by the first dc switch (K1) and the first DC filter (13), described the second continuous input cell is in series by the second dc switch (K2) and the second DC filter (14), the output of described the first DC filter (13) and the second DC filter (14) is in parallel
Described the first power cell (5), the second power cell (6), the 3rd power cell (7) are in parallel successively and form the first power cell group, described the 4th power cell (8), the 5th power cell (9), the 6th power cell (10) are in parallel successively and form the second power cell group, described the first power cell group and the second power cell group are in parallel and form power cell group in parallel, the first DC filter (13) after the input of described power cell group in parallel and the parallel connection be connected the output of DC filter (14) and be connected;
The output of described the first power cell (5), the second power cell (6), the 3rd power cell (7) links to each other with the input of the first reactor (11), the output of described the 4th power cell (8), the 5th power cell (9), the 6th power cell (10) links to each other with the input of the second reactor (12), the output of the output of described the first reactor (11) and the second reactor (12) is in parallel
After the output parallel connection of described the first reactor (11) and the second reactor (12) successively with the 3rd reactor (15), A.C. contactor (16), alternating current filter (19), alternating-current switch (K3), exchange output unit (17) and be in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220570223 CN202917839U (en) | 2012-10-31 | 2012-10-31 | Photovoltaic inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220570223 CN202917839U (en) | 2012-10-31 | 2012-10-31 | Photovoltaic inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202917839U true CN202917839U (en) | 2013-05-01 |
Family
ID=48166115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220570223 Expired - Lifetime CN202917839U (en) | 2012-10-31 | 2012-10-31 | Photovoltaic inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202917839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300432A (en) * | 2016-11-08 | 2017-01-04 | 中国东方电气集团有限公司 | A kind of Modular photovoltaic combining inverter of integrated DC distribution |
| CN113910938A (en) * | 2021-09-09 | 2022-01-11 | 郑州森源新能源科技有限公司 | DC charging equipment |
-
2012
- 2012-10-31 CN CN 201220570223 patent/CN202917839U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300432A (en) * | 2016-11-08 | 2017-01-04 | 中国东方电气集团有限公司 | A kind of Modular photovoltaic combining inverter of integrated DC distribution |
| CN113910938A (en) * | 2021-09-09 | 2022-01-11 | 郑州森源新能源科技有限公司 | DC charging equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SUZHOU AIKE BORUI POWER SUPPLY TECHNOLOGY Co.,Ltd. Assignor: XI'AN ACTIONPOWER ELECTRIC Co.,Ltd. Contract record no.: 2013320010131 Denomination of utility model: Photovoltaic inverter intelligent rotation dormancy control method and system Granted publication date: 20130501 License type: Exclusive License Record date: 20130715 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |