CN206402188U - A kind of photovoltaic combiner box of accessible direct-current grid - Google Patents
A kind of photovoltaic combiner box of accessible direct-current grid Download PDFInfo
- Publication number
- CN206402188U CN206402188U CN201621433923.7U CN201621433923U CN206402188U CN 206402188 U CN206402188 U CN 206402188U CN 201621433923 U CN201621433923 U CN 201621433923U CN 206402188 U CN206402188 U CN 206402188U
- Authority
- CN
- China
- Prior art keywords
- combiner box
- photovoltaic combiner
- direct
- photovoltaic
- current grid
- 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.)
- Expired - Fee Related
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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
Abstract
The utility model provides a kind of photovoltaic combiner box of accessible direct-current grid, and the photovoltaic combiner box includes external shell and photovoltaic combiner box body, it is characterised in that：The photovoltaic combiner box body interior is equipped with fuse, DC1000V lightning protection devices, dc circuit breaker, DC/DC regulators, fling-cut switch, detection module, data acquisition module, NTC temperature sensors and master controller, the switching that the photovoltaic combiner box passes through fling-cut switch, both direct-current grid can be directly accessed, normal AC network can be accessed again.Beneficial effect is：Photovoltaic combiner box can be directly accessed direct-current grid, extend the application of photovoltaic combiner box, reduce the use of inverter, reduce system synthesis sheet, be that greatly developing for alternating current-direct current mixing micro-capacitance sensor is supported there is provided equipment.
Description
Technical field
The utility model belongs to photovoltaic cell capable of generating power field, is converged more particularly, to a kind of photovoltaic of accessible direct-current grid
Flow case.
Background technology
Continued to develop with economical and society, human society increasingly increases the demand of the energy, and traditional fossil
The content of the energy is limited, and pollution of the substantial amounts of combusts fossil energy to environment is more serious.Photovoltaic generation is used as one
Cleaning, the generation mode of low-carbon are planted, is gradually valued by people, and small grids are independently constituted from far-off regions, with reference to
Battery can realize good power supply.Therefore, photovoltaic industry has also obtained swift and violent development, photovoltaic combiner box conduct in recent years
The device that photovoltaic cell tandem is confluxed also more and more is used in real system.But, current photovoltaic combiner box
Using being only limitted in AC network, to gradually new direct-current micro-grid can't be applicable well at present.Due to generation of electricity by new energy
It is the electric power produced in the form of direct current, while many equipment are also direct-flow electricity utilization apparatus in actual electricity consumption, therefore direct current is micro-
Net is also gradually built up becoming study hotspot, corresponding demonstration project in recent years.The direct current that DC generation equipment is produced is straight
Remittance dc bus is connect, the access of the equipment such as inverter can be saved, the cost of system is greatly reduced.Therefore, take into full account
The extensive development of photovoltaic generation, and direct-current micro-grid gradually builds up, with reference to the service condition and work of current photovoltaic combiner box
Make principle, inventor have developed a kind of photovoltaic combiner box of accessible direct-current grid with reference to experience.
The content of the invention
The utility model purpose is in view of the deficienciess of the prior art, proposing a kind of reasonable in design, safe and reliable, both
Direct-current micro-grid can be accessed again can be with the photovoltaic combiner box of incoming transport power network.
The purpose of this utility model can be realized by following technical proposal：
A kind of photovoltaic combiner box of accessible direct-current grid, the photovoltaic combiner box includes external shell and photovoltaic converges
Flow case body, it is characterised in that：The photovoltaic combiner box body interior is equipped with fuse, to prevent the DC1000V of thunderbolt from preventing
Thunder device, be connected on dc bus to protect electric power safety transmit dc circuit breaker, to adjust DC voltage DC/DC adjust
Pressure device, fling-cut switch, use from DC/DC regulators connection to control the different electric power networks of photovoltaic combiner box access
It is used to the detection module, data acquisition module, the connection data acquisition module that detect conflux line current and magnitude of voltage
Receive data message and be transferred to the master controller of host computer and be connected to monitor photovoltaic combiner box with the master controller
The NTC temperature sensors of internal temperature.
The fling-cut switch is connected with direct-current grid, or is connected by inverter with AC network.
NTC thermistor is additionally provided with inside the NTC temperature sensors.
The utility model has an advantageous effect in that：While photovoltaic combiner box can access AC network, also can directly it connect
Enter direct-current grid, extend the application of photovoltaic combiner box, reduce the use of inverter, reduce system synthesis sheet,
Supported for greatly developing for alternating current-direct current mixing micro-capacitance sensor there is provided equipment.
Brief description of the drawings
Fig. 1 is integral frame structure schematic diagram of the present utility model.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
A kind of photovoltaic combiner box of accessible direct-current grid shown in reference picture 1, the photovoltaic combiner box includes external shell
1 and photovoltaic combiner box body 2, it is characterised in that：Fuse 3 is equipped with inside the photovoltaic combiner box body 2, to prevent
The DC1000V lightning protection devices 4 of thunderbolt, be connected on dc bus to protect electric power safety transmit dc circuit breaker 5, to adjust
The DC/DC regulators 6 of DC voltage, connect from the DC/DC regulators 6 to control the different electricity of photovoltaic combiner box access
The fling-cut switch 7 of power network, the detection module 8 to detect conflux line current and magnitude of voltage, data acquisition module 9, company
Connect the data acquisition module 9 to receive data message and be transferred to host computer 10 master controller 11 and with the master
Controller 11 connects to monitor the NTC temperature sensors 12 of photovoltaic combiner box internal temperature；
Wherein, the data acquisition module 9 is to gather the state of DC1000V lightning protection devices 4, the dc circuit breaker 5
The detected value of state, the state of the fling-cut switch 7 and the detection module 8.The DC/DC regulators 6 can be according to direct current
Voltage needed for the voltage of micro-capacitance sensor 13 or AC network 14 is boosted or reduction regulation.The fling-cut switch 7 can directly and institute
State direct-current grid 13 to connect, or be connected by inverter 15 with the AC network 14.Inside the NTC temperature sensors 12
It is additionally provided with NTC thermistor.
In actual use, the electricity extremely needed the voltage-regulation of dc bus using the DC/DC regulators 6
Pressure value, may then pass through fling-cut switch 7 and selects accessed power network type, can both pass through the inverter 15 and alternating current
Net 14 is grid-connected, can also further realize selection and the connection of direct-current grid 13, effectively adapt to current direct-current grid
Development, gathers around in the application of direct-current grid from now on and holds out broad prospects.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (3)
1. a kind of photovoltaic combiner box of accessible direct-current grid, the photovoltaic combiner box includes external shell and photovoltaic conflux
Case body, it is characterised in that：The photovoltaic combiner box body interior is equipped with fuse, the DC1000V lightning protection to prevent thunderbolt
Device, be connected on dc bus to protect electric power safety transmit dc circuit breaker, the DC/DC pressure regulation to adjust DC voltage
Device, from the DC/DC regulators connection to control the fling-cut switch of the different electric power networks of photovoltaic combiner box access, be used to
Detect the detection module, data acquisition module, the connection data acquisition module of conflux line current and magnitude of voltage to connect
Receive data message and be transferred to the master controller of host computer and be connected to monitor in photovoltaic combiner box with the master controller
The NTC temperature sensors of portion's temperature.
2. a kind of photovoltaic combiner box of accessible direct-current grid according to claim 1, it is characterised in that：The switching
Switch is connected with direct-current grid, or is connected by inverter with AC network.
3. a kind of photovoltaic combiner box of accessible direct-current grid according to claim 1, it is characterised in that：The NTC
NTC thermistor is additionally provided with inside temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621433923.7U CN206402188U (en) | 2016-12-24 | 2016-12-24 | A kind of photovoltaic combiner box of accessible direct-current grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621433923.7U CN206402188U (en) | 2016-12-24 | 2016-12-24 | A kind of photovoltaic combiner box of accessible direct-current grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206402188U true CN206402188U (en) | 2017-08-11 |
Family
ID=59511522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621433923.7U Expired - Fee Related CN206402188U (en) | 2016-12-24 | 2016-12-24 | A kind of photovoltaic combiner box of accessible direct-current grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206402188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932305A (en) * | 2018-09-19 | 2020-03-27 | 漳浦比速光电科技有限公司 | Voltage regulating device for photovoltaic power generation and use method thereof |
-
2016
- 2016-12-24 CN CN201621433923.7U patent/CN206402188U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932305A (en) * | 2018-09-19 | 2020-03-27 | 漳浦比速光电科技有限公司 | Voltage regulating device for photovoltaic power generation and use method thereof |
| CN110932305B (en) * | 2018-09-19 | 2023-12-22 | 北京建安华丰建设集团有限公司 | Voltage regulating device for photovoltaic power generation and application method thereof |
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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: 20170811 Termination date: 20191224 |