CN201878043U - Self-powered photovoltaic array busbar chamber - Google Patents
Self-powered photovoltaic array busbar chamber Download PDFInfo
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- CN201878043U CN201878043U CN2010205045133U CN201020504513U CN201878043U CN 201878043 U CN201878043 U CN 201878043U CN 2010205045133 U CN2010205045133 U CN 2010205045133U CN 201020504513 U CN201020504513 U CN 201020504513U CN 201878043 U CN201878043 U CN 201878043U
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- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 21
- 230000001012 protector Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 235000009566 rice Nutrition 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 discloses a self-powered photovoltaic array busbar chamber which comprises a plurality of positive-negative wiring ends which are connected with a photovoltaic module in series, a current detecting module, an anti-reverse diode, a fuse protector, a power supply module, a direct current fuse protector, a lightning-proof module and a positive-negative bus bar, wherein the power supply module is a direct current-direct current converter, two input ends of the direct current-direct current converter are respectively connected with the positive-negative bus bar of the busbar chamber, the output end of the direct current-direct current converter is connected with the current detecting module, the direct current-direct current converter is used for obtaining the electric energy from the positive-negative bus bar and adjusting the voltage level to offer the voltage to the current detecting module, and the current detecting module is used for transmitting an acquired signal which reflects the level of the current to an external monitoring system by a communication line. Compared with the prior art, the power supply module is adopted as the direct current-direct current converter, the input end of the power supply module is connected with the positive-negative bus bar of the busbar chamber, the output end of the power supply module is connected with the current detecting module, and the power supply module is used for obtaining the electric energy from the positive-negative bus bar and adjusting the proper voltage level to offer the voltage to the current detecting module without an external direct current or alternating current power supply power source.
Description
Technical field
The utility model relates to a kind of photovoltaic array header box, refers in particular to the photovoltaic array header box that can realize self-powered function.
Background technology
Along with the development of human civilization is rapid day by day, human demand to the energy also increases day by day, and traditional fossil energy is exhausted just day by day, so development and use regenerative resource and various green energy resource are to realize that sustainable development is the measure that the mankind must take.
Photovoltaic power generation technology based on the solar energy utilization has also obtained paying close attention to widely, for the large-sized photovoltaic grid-connected system,, maintain easily in order to reduce the line between photovoltaic module and the inverter, reliability is provided, need between photovoltaic module and inverter, increases the direct current collector-shoe gear.The photovoltaic array header box designs in order to satisfy this requirement, the user can be according to the DC input voitage scope of inverter, the photovoltaic module of some is connected into a photovoltaic module tandem, again several photovoltaic module tandems are inserted the photovoltaic array header box, by exporting the access of convenient back level inverter behind circuit breaker and the lightning protection device.
The photovoltaic array header box 3 of traditional belt current measuring ability as shown in Figure 1, comprises current detection module 11, counnter attack diode 12, fuse 13, dc circuit breaker 15, lightning-protection module 16 and power module 17.The positive and negative terminals 23,24 of a plurality of photovoltaic module tandems are connected to respectively on the positive and negative busbar 21,22 of header box inside.Power module 17 is powered to current detection module 11 by outside direct current or ac power supply line 26.The signal of the reflection size of current that current detection module 11 will be gathered is sent to supervisory control system by communication line 25.
In the large-sized photovoltaic power station, the floor space in whole power station is very big, and the distribution of photovoltaic array header box disperses very much.The outside direct current of a photovoltaic array header box 3 or ac power supply line 26 can reach tens meters usually, even hundreds of rice.The photovoltaic array header box 3 in large-sized photovoltaic power station can reach up to a hundred, and its outside direct current or ac power supply line 26 can reach km, even goes up myriametre.This has not only increased the cost of photovoltaic plant, and has reduced the reliability of photovoltaic generating system.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned photovoltaic array header box, and a kind of self-powered formula photovoltaic array header box is provided, and saves the outside direct current or the ac power supply line of photovoltaic array header box.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of photovoltaic array header box that is used for solar photovoltaic generation system, the positive and negative terminals that comprise a plurality of photovoltaic module series connection, current detection module, the counnter attack diode, fuse, supply module, dc circuit breaker, lightning-protection module and positive and negative busbar, terminals of described each photovoltaic module are connected to an end of described fuse, the other end of fuse is connected to the input utmost point of counnter attack diode, the output stage of counnter attack diode is connected on the corresponding plus or minus busbar by current detection module, another terminals of described each photovoltaic module all are connected on another corresponding negative or positive busbar, described positive and negative busbar is connected to external equipment through dc circuit breaker and lightning-protection module, it is characterized in that: described supply module is a DC-DC converter, two inputs of this DC-DC converter are connected to the positive and negative busbar of header box respectively, the output of this DC-DC converter is connected to current detection module, described DC-DC converter obtains electric energy from positive and negative busbar, and regulation voltage grade supplying electric current detection module, the signal of the reflection size of current that current detection module will be gathered is sent to the outer monitoring system by communication line.
Compared with prior art, the described self-powered formula of the utility model photovoltaic array header box comprises current detection module, counnter attack diode, fuse, supply module, dc circuit breaker and lightning-protection module, wherein supply module is, its input is connected to respectively on the positive and negative busbar of header box, output is connected to current detection module, supply module is obtained electric energy from positive and negative busbar, and is adjusted to suitable electric pressure supplying electric current detection module, and does not need external direct current or communication power supply.
The beneficial effects of the utility model have been to reduce the cost of photovoltaic plant, have increased the reliability of photovoltaic generating system.
Description of drawings
Fig. 1 is the functional-block diagram of the external power supply formula photovoltaic array header box of traditional belt current measuring ability.
Fig. 2 is the functional-block diagram of self-powered formula photovoltaic array header box described in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 2 is the functional-block diagram of self-powered formula photovoltaic array header box described in the utility model.As shown in the figure, self-powered formula photovoltaic array header box 1 comprises current detection module 11, counnter attack diode 12, fuse 13, supply module 14, dc circuit breaker 15 and lightning-protection module 16.The positive and negative terminals 23,24 of a plurality of photovoltaic module tandems enter header box inside respectively.Each just (is bearing) end that terminals 23 are connected to a fuse 13, and what the other end of fuse 13 was connected to counnter attack diode 12 just (bears) utmost point, and negative (just) utmost point of counnter attack diode just is being connected on (bearing) busbar 21 by current detection module 11.Each negative (just) terminals 24 all is connected to negative (just) busbar 22.Positive and negative busbar 21,22 is connected to external equipment through dc circuit breaker (15) and lightning-protection module 16.Two inputs of supply module 14 are connected to the positive and negative busbar 21,22 of header box respectively, and output is connected to current detection module 11.Supply module 14 is obtained electric energy from positive and negative busbar 21,22, and is adjusted to suitable electric pressure supplying electric current detection module 11.The signal of the reflection size of current that current detection module 11 will be gathered is sent to the outer monitoring system by communication line 25.
Lightning-protection module 16 described in the utility model is used to protect inner each components and parts of header box, avoids being struck by lightning and damages.
Claims (1)
1. self-powered formula photovoltaic array header box, the positive and negative terminals (23 that comprise a plurality of photovoltaic module series connection, 24), current detection module (11), counnter attack diode (12), fuse (13), supply module (14), dc circuit breaker (15), lightning-protection module (16) and positive and negative busbar (21,22), terminals of described each photovoltaic module are connected to an end of described fuse (13), the other end of fuse (13) is connected to the input utmost point of counnter attack diode (12), the output stage of counnter attack diode is connected on the corresponding plus or minus busbar by current detection module (11), another terminals of described each photovoltaic module all are connected on another corresponding negative or positive busbar, described positive and negative busbar (21,22) be connected to external equipment through dc circuit breaker (15) and lightning-protection module (16), it is characterized in that: described supply module is a DC-DC converter, two inputs of this DC-DC converter are connected to the positive and negative busbar (21 of header box respectively, 22), the output of this DC-DC converter is connected to current detection module (11), described DC-DC converter is from positive and negative busbar (21,22) obtain electric energy, and regulation voltage grade supplying electric current detection module (11), the signal of the reflection size of current that current detection module (11) will be gathered is sent to the outer monitoring system by communication line (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205045133U CN201878043U (en) | 2010-08-25 | 2010-08-25 | Self-powered photovoltaic array busbar chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205045133U CN201878043U (en) | 2010-08-25 | 2010-08-25 | Self-powered photovoltaic array busbar chamber |
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| Publication Number | Publication Date |
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| CN201878043U true CN201878043U (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205045133U Expired - Lifetime CN201878043U (en) | 2010-08-25 | 2010-08-25 | Self-powered photovoltaic array busbar chamber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647021A (en) * | 2012-04-27 | 2012-08-22 | 苏州长风自动化科技有限公司 | Self-powered solar combiner box |
| CN103000011A (en) * | 2011-09-08 | 2013-03-27 | 黄利刚 | Wireless transceiver combiner box |
| CN103001537A (en) * | 2011-09-08 | 2013-03-27 | 黄利刚 | Self-powered device of solar combiner box |
| CN103197613A (en) * | 2012-01-09 | 2013-07-10 | 中国科学院沈阳自动化研究所 | Photovoltaic power station monitoring system based on industrial wireless network |
| CN103872752A (en) * | 2014-03-10 | 2014-06-18 | 中国能源建设集团广东省电力设计研究院 | Power supply system of transformer substation |
| CN116317927A (en) * | 2023-03-24 | 2023-06-23 | 世纪康盛电气有限公司 | A photovoltaic combiner box |
-
2010
- 2010-08-25 CN CN2010205045133U patent/CN201878043U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000011A (en) * | 2011-09-08 | 2013-03-27 | 黄利刚 | Wireless transceiver combiner box |
| CN103001537A (en) * | 2011-09-08 | 2013-03-27 | 黄利刚 | Self-powered device of solar combiner box |
| CN103197613A (en) * | 2012-01-09 | 2013-07-10 | 中国科学院沈阳自动化研究所 | Photovoltaic power station monitoring system based on industrial wireless network |
| CN102647021A (en) * | 2012-04-27 | 2012-08-22 | 苏州长风自动化科技有限公司 | Self-powered solar combiner box |
| CN103872752A (en) * | 2014-03-10 | 2014-06-18 | 中国能源建设集团广东省电力设计研究院 | Power supply system of transformer substation |
| CN116317927A (en) * | 2023-03-24 | 2023-06-23 | 世纪康盛电气有限公司 | A photovoltaic combiner box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING CNI23 ENERGY ENGINEERING CO., LTD. Free format text: FORMER OWNER: GCL SOLAR CO., LTD. Effective date: 20130709 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130709 Address after: 43 building, building 1, building 210008, Nanjing, Jiangsu, Zhujianglu Road Patentee after: Nanjing CNI23 Energy Engineering Co., Ltd. Address before: 210008 No. 68 Sheng Sheng Road, Jiangning Development Zone, Jiangsu, Nanjing, China Patentee before: GCL Solar System Limited |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |