CN204349908U - Based on the intelligent junction box of DC carrier wave communication - Google Patents
Based on the intelligent junction box of DC carrier wave communication Download PDFInfo
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- CN204349908U CN204349908U CN201520046813.4U CN201520046813U CN204349908U CN 204349908 U CN204349908 U CN 204349908U CN 201520046813 U CN201520046813 U CN 201520046813U CN 204349908 U CN204349908 U CN 204349908U
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- 238000004891 communication Methods 0.000 title claims abstract description 36
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 241001269238 Data Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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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
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Abstract
The utility model provides a kind of intelligent junction box based on DC carrier wave communication, comprises casing, is provided with input positive terminal row and input negative terminal row, DC circuit breaker, lightning protection device, data acquisition and forwarding module in casing; Photovoltaic module group string access input positive terminal row in parallel and the input negative terminal row respectively of each band DC carrier wave communication module, arranges from input positive terminal row and input negative terminal positive input terminal and the negative input end that respective output accesses DC circuit breaker respectively; The output of DC circuit breaker is for connecting power transmission lines; Data acquisition and forwarding module comprise MCU and DC carrier wave communication module; DC carrier wave communication module in charge in data acquisition and forwarding module collects the service data that each is with the photovoltaic module of DC carrier wave communication module, and the power transmission line road direction data acquisition center then by being connected with DC circuit breaker output sends the service data of photovoltaic module group string.This header box is without the need to extra monitoring circuit.
Description
Technical field
The utility model relates to the header box that a kind of photovoltaic plant uses, especially a kind of intelligent junction box based on DC carrier wave communication.
Background technology
Photovoltaic generation utilizes solar energy and semi-conductor electronic device effectively to absorb solar radiation energy, and make it the direct generation of electricity mode being transformed into electric energy, is the solar power generation mode of current main flow.
In solar photovoltaic generation system, in order to reduce the line between solar-energy photo-voltaic cell array and inverter or user load, some, photovoltaic module that specification is identical can be together in series by user, form photovoltaic module group string; And then by several photovoltaic module group connection in series-parallel access header box, after confluxing in header box, exported by DC circuit breaker.
The current monitoring to the service data such as electric current, voltage of photovoltaic module group string and transmission adopt 485 communication modes to carry out usually, need additionally to lay circuit between header box to data acquisition center, and communication line exists the inconvenient problem of laying.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of intelligent junction box based on DC carrier wave communication, it can the service data such as electric current, voltage of collection photovoltaics assembly group string, and utilize power transmission line to send data, without the need to additionally setting up the circuit of monitoring to data acquisition center.The technical solution adopted in the utility model is:
Based on an intelligent junction box for DC carrier wave communication, comprise casing, input positive terminal row and input negative terminal row, DC circuit breaker, lightning protection device, data acquisition and forwarding module are installed in casing;
Photovoltaic module group string access input positive terminal row in parallel and the input negative terminal row respectively of each band DC carrier wave communication module, input positive terminal row and input negative terminal row carry out respectively positive pole input conflux and negative pole input conflux after, from input positive terminal row and input negative terminal arrange positive input terminal and the negative input end that respective output accesses DC circuit breaker respectively; The output of DC circuit breaker is for connecting power transmission lines;
The two ends of lightning protection device connect the output of input positive terminal row and input negative terminal row respectively;
Data acquisition and forwarding module comprise MCU and DC carrier wave communication module; The input of data acquisition and forwarding module connects respectively and inputs positive terminal and arrange and input the output that negative terminal arranges, DC carrier wave communication module in charge in data acquisition and forwarding module collects the service data that each is with the photovoltaic module of DC carrier wave communication module, and the power transmission line road direction data acquisition center then by being connected with DC circuit breaker output sends the service data of photovoltaic module group string.
Further, this header box also comprises watch-dog and self powered supply module; Two inputs of self powered supply module connect the output of input positive terminal row and input negative terminal row respectively, and two export termination watch-dog power end;
The voltage monitoring port of watch-dog connects the output of input positive terminal row and input negative terminal row, the current monitoring port of watch-dog connects the electric current sensor detector be arranged on each input branch road, and the condition monitoring port of watch-dog connects the status contacts of DC circuit breaker and lightning protection device respectively.
Further, in data acquisition and forwarding module, also there is GPRS module and WiFi module.
The utility model has the advantage of: this intelligent junction box can collect the service data such as voltage, electric current of every block photovoltaic module, and is transported to data acquisition center by DC carrier wave communication.Relative to the header box adopting traditional watch-dog, the utility model one is without the need to additionally setting up monitoring circuit, install and use convenient, two is solve traditional watch-dog can only read electric current and voltage data on the group string of photovoltaic module, cannot read the problem of the data of single photovoltaic module.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is electrical schematic diagram of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, the intelligent junction box that the utility model proposes, comprises a casing, is provided with input positive terminal row 1 and input negative terminal row 2 in casing; Each road that input positive terminal row 1 and input negative terminal are arranged in 2 is equipped with fuse;
DC circuit breaker 3, lightning protection device 4, watch-dog 5, data acquisition and forwarding module 6, self powered supply module 7 are also installed in casing.
The design of this intelligent junction box adopts DC carrier wave communication mode to communicate with data acquisition center.For this reason, each photovoltaic module is all built-in with DC carrier wave communication module; As depicted in figs. 1 and 2, photovoltaic module group string access input positive terminal row 1 in parallel and the input negative terminal row 2 respectively of each band DC carrier wave communication module, carry out positive pole input respectively input positive terminal row 1 and input negative terminal row 2 conflux and after negative pole input confluxes, arrange from input positive terminal row 1 and input negative terminal positive input terminal and the negative input end that 2 respective outputs access DC circuit breaker 3 respectively; The output of DC circuit breaker 3 is for connecting power transmission lines.
The present embodiment has drawn 16 photovoltaic module group strings, but is not limited thereto, and according to the size of actual required generated output, can increase or reduce photovoltaic module group string in parallel.
Two inputs of self powered supply module 7 connect the output of input positive terminal row 1 and input negative terminal row 2 respectively, and two export termination watch-dog 5 power end, for watch-dog 5 provides power supply.The voltage that photovoltaic module group string exports is higher, may at the supreme kilovolt of a few hectovolt, and self powered supply module 7 is a DC-DC modular converter in fact, is that 24v supplying monitoring device 5 uses by upper kilovolt high voltage variable.
The voltage monitoring port of watch-dog 5 connects the output of input positive terminal row 1 and input negative terminal row 2,11 and No. 13 ports in Fig. 2 on watch-dog 5 and voltage monitoring port.The current monitoring port of watch-dog 5 connects the electric current sensor detector 8 be arranged on each input branch road.The condition monitoring port of watch-dog 5 connects the status contacts of DC circuit breaker 3 and lightning protection device 4 respectively, to obtain abnormal state information when DC circuit breaker 3 and lightning protection device 4 operation irregularity.The the 3rd, 4, No. 5 port D11, D12, COM on watch-dog 5 and condition monitoring port.Watch-dog 5 has RS485 PORT COM, as shown in No. 8 port of the 6th, 7, on watch-dog in Fig. 25, when monitoring circuit can be laid, this RS485 port also can be utilized to send to data acquisition center the service data such as voltage, electric current of photovoltaic module group string.
The two ends of lightning protection device 4 connect the output of input positive terminal row 1 and input negative terminal row 2 respectively, provide anti-lightning strike protection.
Data acquisition and forwarding module 6 comprise MCU and DC carrier wave communication module; The input of data acquisition and forwarding module 6 connects respectively and inputs positive terminal and arrange 1 and input the output that negative terminal arranges 2, DC carrier wave communication module communication that like this can be built-in with each photovoltaic module; DC carrier wave communication module in charge in data acquisition and forwarding module 6 collects the service datas such as each voltage being with the photovoltaic module of DC carrier wave communication module, electric current, and the power transmission line road direction data acquisition center then by being connected with DC circuit breaker 3 output sends the service data of photovoltaic module group string; Data acquisition intercoms mutually with the employing direct current power carrier communication mode of forwarding module 6 with data acquisition center, can avoid additionally setting up monitoring circuit.
Optionally, in data acquisition and forwarding module 6, GPRS module and WiFi module can also be set, to be intercomed mutually by wireless communication mode with data acquisition center.But the normal need of work of GPRS module pays radio communication operator expense, WiFi module communication distance is shorter.
Claims (3)
1. based on an intelligent junction box for DC carrier wave communication, comprise casing, it is characterized in that:
Input positive terminal row (1) and input negative terminal row (2), DC circuit breaker (3), lightning protection device (4), data acquisition and forwarding module (6) are installed in casing;
Photovoltaic module group string access input positive terminal row (1) in parallel and input negative terminal row (2) respectively of each band DC carrier wave communication module, carry out positive pole input respectively in input positive terminal row (1) and input negative terminal row (2) to conflux and after negative pole input confluxes, from input positive terminal row (1) with input negative terminal and arrange positive input terminal and the negative input end that (2) respective output accesses DC circuit breaker (3) respectively; The output of DC circuit breaker (3) is for connecting power transmission lines;
The two ends of lightning protection device (4) connect the output of input positive terminal row (1) and input negative terminal row (2) respectively;
Data acquisition and forwarding module (6) comprise MCU and DC carrier wave communication module; The input of data acquisition and forwarding module (6) connects respectively and inputs positive terminal and arrange (1) and input the output that negative terminal arranges (2), DC carrier wave communication module in charge in data acquisition and forwarding module (6) collects the service data that each is with the photovoltaic module of DC carrier wave communication module, and the power transmission line road direction data acquisition center then by being connected with DC circuit breaker (3) output sends the service data of photovoltaic module group string.
2., as claimed in claim 1 based on the intelligent junction box of DC carrier wave communication, it is characterized in that: this header box also comprises watch-dog (5) and self powered supply module (7);
Two inputs of self powered supply module (7) connect the output of input positive terminal row (1) and input negative terminal row (2) respectively, and two export termination watch-dog (5) power end;
The voltage monitoring port of watch-dog (5) connects the output of input positive terminal row (1) and input negative terminal row (2), the current monitoring port of watch-dog (5) connects the electric current sensor detector (8) be arranged on each input branch road, and the condition monitoring port of watch-dog (5) connects the status contacts of DC circuit breaker (3) and lightning protection device (4) respectively.
3., as claimed in claim 1 based on the intelligent junction box of DC carrier wave communication, it is characterized in that:
In data acquisition and forwarding module (6), also there is GPRS module and WiFi module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046813.4U CN204349908U (en) | 2015-01-22 | 2015-01-22 | Based on the intelligent junction box of DC carrier wave communication |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520046813.4U CN204349908U (en) | 2015-01-22 | 2015-01-22 | Based on the intelligent junction box of DC carrier wave communication |
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| CN204349908U true CN204349908U (en) | 2015-05-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790699A (en) * | 2016-04-26 | 2016-07-20 | 安徽灿邦电气有限公司 | Novel photovoltaic controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790699A (en) * | 2016-04-26 | 2016-07-20 | 安徽灿邦电气有限公司 | Novel photovoltaic controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Intelligent combiner box based on DC carrier wave communication Effective date of registration: 20160603 Granted publication date: 20150520 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: 2016990000472 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200522 Granted publication date: 20150520 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: 2016990000472 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Intelligent combiner box based on DC carrier wave communication Effective date of registration: 20200522 Granted publication date: 20150520 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2020990000509 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220527 Granted publication date: 20150520 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2020990000509 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Intelligent combiner box based on DC carrier communication Effective date of registration: 20220601 Granted publication date: 20150520 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2022320000259 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20150520 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI LONGMAX TECHNOLOGY Co.,Ltd. Registration number: Y2022320000259 |