CN205248632U - Photovoltaic grid -connected inverter cabinet of integrated DC distribution cabinet - Google Patents
Photovoltaic grid -connected inverter cabinet of integrated DC distribution cabinet Download PDFInfo
- Publication number
- CN205248632U CN205248632U CN201520878290.XU CN201520878290U CN205248632U CN 205248632 U CN205248632 U CN 205248632U CN 201520878290 U CN201520878290 U CN 201520878290U CN 205248632 U CN205248632 U CN 205248632U
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- China
- Prior art keywords
- cabinet
- direct current
- power
- output
- power distribution
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- Expired - Fee Related
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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 utility model provides a photovoltaic grid -connected inverter cabinet of integrated DC distribution cabinet, exports be incorporated into the power networks cabinet (1), power cabinet (2) and direct -current input switch board (3) including exchanging, exchange output be incorporated into the power networks cabinet (1) be located cabinet sinistron side, power cabinet (2) are located and exchange output and be incorporated into the power networks between cabinet (1) and DC distribution cabinet (3), DC distribution cabinet (3) are located the cabinet right side of personally experiencing sth. Part of the body, exchanging output be incorporated into the power networks the reactor output of the three -phase input connection power cabinet (2) of cabinet (1) and the interchange side of power cabinet (2), exchanging the be incorporated into the power networks three -phase output connection electric wire netting of cabinet (1) of output, the direct current that direct -current input switch board (3) are connected to the direct current side of power cabinet (2) inclines, interchange output be incorporated into the power networks cabinet (1) be used for the alternating current connected to the grid with power cabinet (2) contravariant, power cabinet (2) are used for the DC inversion with direct -current input switch board (3) inward -remittance is the alternating current.
Description
Technical field
The utility model relates to a kind of photovoltaic combining inverter cabinet of integrated DC power distribution cabinet.
Background technology
Along with the technological progress of photovoltaic generation and the increase of capacity ratio, the reduction to photovoltaic combining inverter cost and also more and more higher to the requirement of grid adaptability, electrical network requires photovoltaic power generation equipment must possess low voltage ride-through capability. Existing combining inverter does not have integrated DC distribution section, and DC distribution part is cabinet independently, has increased like this difficulty of cost and installation and maintenance; Do not design direct current off-load module simultaneously, be difficult to meet the requirement of low voltage crossing.
Utility model content
The purpose of this utility model is the shortcoming that overcomes that existing grid-connected photovoltaic system uses separate inverter unit and the existing cost of DC power distribution cabinet is high, increases installation and maintenance workload, a kind of photovoltaic combining inverter cabinet of integrated DC power distribution cabinet is provided, the utility model is in overcoming the shortcoming of above-mentioned prior art, in integrated direct current input power distribution cabinet, include direct current off-load module, to meet the requirement of electrical network to low voltage crossing.
The utility model comprises that exchanging output grid-connection cabinet, power cabinet and direct current inputs power distribution cabinet. Exchange the left side that output grid-connection cabinet is positioned at cabinet, power cabinet is exchanging between output grid-connection cabinet and DC power distribution cabinet, and DC power distribution cabinet is positioned at the right side of cabinet; The three-phase input that exchanges output grid-connection cabinet connects the output of reactor and the AC of power cabinet of power cabinet, and the three-phase output that exchanges output grid-connection cabinet connects electrical network; The DC side of power cabinet connects the DC side of direct current input power distribution cabinet.
Described interchange output grid-connection cabinet is for being connected to the grid the alternating current of power cabinet inversion. Power cabinet is alternating current for the DC inversion of direct current being inputted to power distribution cabinet remittance.
Described direct current input power distribution cabinet is for the direct current of photovoltaic electrical network multichannel header box is confluxed, and direct current input power distribution cabinet comprises for the direct current off-load module of low voltage crossing and bleeder resistance, the electric quantity acquisition module of DC side, direct current inputs breaker, direct current input current sensor. The input of the electric quantity acquisition module of DC side connects DC current sensor and the positive and negative busbar of DC voltage, and the control panel of the output termination direct current input power distribution cabinet of the electric quantity acquisition module of DC side, by control panel and external system communication. The input termination header box of direct current input breaker, the DC side of the output termination direct current input power distribution cabinet of direct current input breaker. The input of direct current input current sensor is DC current, and the output of direct current input current sensor is connected in the electric quantity acquisition module of direct current input power distribution cabinet DC side.
One end of described direct current off-load module connects the direct-flow positive pole after gathering, and the other end of direct current off-load module connects one end of bleeder resistance; The other end of bleeder resistance connects the direct current negative pole after gathering.
The electric quantity acquisition module of described DC side is for gathering DC voltage and the DC current after gathering, for measuring direct current input electric weight.
Described direct current input breaker adopts miniature circuit breaker, also can use breaker of plastic casing, and its quantity equates with direct current input quantity along separate routes.
Described direct current input current sensor is for DC current sampling along separate routes, and the quantity of direct current input current sensor equates with direct current input quantity along separate routes.
The beneficial effects of the utility model are as follows: 1, reduce costs, reduce the cost of on-site installation and maintenance; 2, increase direct current off-load module, meet the requirement of electrical network to low voltage crossing.
Brief description of the drawings
Fig. 1 is the front view of the combining inverter cabinet of the utility model DC power distribution cabinet;
Fig. 2 is the utility model combining inverter cabinet DC power distribution cabinet internal structure layout.
Detailed description of the invention
Further illustrate the utility model below in conjunction with accompanying drawing and concrete enforcement.
As shown in Figure 1, the utility model photovoltaic combining inverter cabinet comprises that exchanging output grid-connection cabinet 1, power cabinet 2 and direct current inputs power distribution cabinet 3. Exchange output grid-connection cabinet 1 and be positioned at cabinet left side, power cabinet 2 is exchanging between output grid-connection cabinet 1 and DC power distribution cabinet 3, and DC power distribution cabinet 3 is positioned at cabinet right side; The three-phase input that exchanges output grid-connection cabinet 1 connects the reactor output of power cabinet 2 and the AC of power cabinet 2, and the three-phase output that exchanges output grid-connection cabinet 1 connects electrical network, and the DC side of power cabinet 2 connects the DC side of direct current input power distribution cabinet 3.
Described interchange output grid-connection cabinet 1 is for being connected to the grid the alternating current of power cabinet 2 inversions. Power cabinet 2 is alternating current for the DC inversion of direct current being inputted to power distribution cabinet 3 and being imported.
As shown in Figure 2, described direct current input power distribution cabinet 3 is for confluxing to the direct current of photovoltaic electrical network multichannel header box. Direct current input power distribution cabinet 3 comprises for the direct current off-load module 4 of low voltage crossing and bleeder resistance 5, the electric quantity acquisition module 6 of DC side, direct current inputs breaker 7 and direct current input current sensor 8. The input of the electric quantity acquisition module 6 of DC side connects DC current sensor and DC voltage, and the output of the electric quantity acquisition module 6 of DC side connects control panel. Direct current input breaker input termination header box, the DC side of output termination direct current input power distribution cabinet. The input of direct current input current sensor is DC current, and output is connected to the electric quantity acquisition module of direct current input power distribution cabinet DC side.
As shown in Figure 2, one end of described direct current off-load module 4 connects the direct-flow positive pole after gathering, and the other end of direct current off-load module 4 connects one end of bleeder resistance 5; Direct current negative pole after another termination of bleeder resistance 5 gathers.
As shown in Figure 2, the electric quantity acquisition module 6 of described DC side is for gathering DC voltage and the DC current after gathering, and metering direct current is inputted electric weight.
As shown in Figure 2, in the utility model, direct current input breaker 7 adopts miniature circuit breaker, also can use breaker of plastic casing, and its quantity equates with direct current input quantity along separate routes.
As shown in Figure 2, described direct current input current sensor 8 is for the sampling of shunt DC current, and its quantity equates with direct current input quantity along separate routes.
Claims (2)
1. a photovoltaic combining inverter cabinet for integrated DC power distribution cabinet, is characterized in that: described photovoltaic combining inverter cabinet comprises that exchanging output grid-connection cabinet (1), power cabinet (2) and direct current inputs power distribution cabinet (3); Exchange output grid-connection cabinet (1) and be positioned at cabinet left side, power cabinet (2) is positioned at and exchanges between output grid-connection cabinet (1) and DC power distribution cabinet (3), and DC power distribution cabinet (3) is positioned at cabinet right side; The three-phase input that exchanges output grid-connection cabinet (1) connects the reactor output of power cabinet (2) and the AC of power cabinet (2), the three-phase output that exchanges output grid-connection cabinet (1) connects electrical network, and the DC side of power cabinet (2) connects the DC side of direct current input power distribution cabinet (3); Described interchange output grid-connection cabinet (1) is for being connected to the grid the alternating current of power cabinet (2) inversion; Power cabinet (2) is alternating current for the DC inversion of direct current being inputted to power distribution cabinet (3) remittance.
2. according to the photovoltaic combining inverter cabinet of integrated DC power distribution cabinet claimed in claim 1, it is characterized in that: in described direct current input power distribution cabinet (3), comprise for direct current off-load module (4) and bleeder resistance (5), the electric quantity acquisition module (6) of DC side, the direct current of low voltage crossing and input breaker (7), direct current input current sensor (8); The input of the electric quantity acquisition module (6) of DC side connects DC current sensor and DC voltage, the output of the electric quantity acquisition module (6) of DC side connects the control panel of direct current input power distribution cabinet, by control panel and external system communication; The input termination header box of direct current input breaker, the DC side of the output termination direct current input power distribution cabinet of direct current input breaker; The input of direct current input current sensor is DC current, and output is connected in the electric quantity acquisition module of direct current input power distribution cabinet DC side;
One end of described direct current off-load module (4) connects the direct-flow positive pole after gathering, and the other end of direct current off-load module (4) connects one end of bleeder resistance (5); Direct current negative pole after another termination of bleeder resistance (5) gathers;
The electric quantity acquisition module (6) of described DC side is for gathering DC voltage and the DC current after gathering, and metering direct current is inputted electric weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878290.XU CN205248632U (en) | 2015-11-05 | 2015-11-05 | Photovoltaic grid -connected inverter cabinet of integrated DC distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878290.XU CN205248632U (en) | 2015-11-05 | 2015-11-05 | Photovoltaic grid -connected inverter cabinet of integrated DC distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205248632U true CN205248632U (en) | 2016-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520878290.XU Expired - Fee Related CN205248632U (en) | 2015-11-05 | 2015-11-05 | Photovoltaic grid -connected inverter cabinet of integrated DC distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205248632U (en) |
Cited By (1)
| 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 |
-
2015
- 2015-11-05 CN CN201520878290.XU patent/CN205248632U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160518 Termination date: 20211105 |