CN103151409A - Photovoltaic component system - Google Patents
Photovoltaic component system Download PDFInfo
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- CN103151409A CN103151409A CN2013100636879A CN201310063687A CN103151409A CN 103151409 A CN103151409 A CN 103151409A CN 2013100636879 A CN2013100636879 A CN 2013100636879A CN 201310063687 A CN201310063687 A CN 201310063687A CN 103151409 A CN103151409 A CN 103151409A
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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 invention relates to the technical field of photovoltaic components, in particular to a photovoltaic component system. The photovoltaic component system comprises more than two rows of photovoltaic component strings, wherein each row of component strings comprises more than two photovoltaic components; the photovoltaic components in each row are connected in series by cables; a leading-out wire of the head-part photovoltaic component in the upper-row component string is a first leading-out cable which is used as a positive electrode; the tail-part photovoltaic component in the upper-row component string is a second leading-out cable which is used as a negative electrode; a leading-out wire of the head-part photovoltaic component in the lower-row component string is a third leading-out cable which is used as a negative electrode, and a leading-out wire of the tail-part photovoltaic component in the lower-row component string is a fourth leading-out cable which is used as a positive electrode; the second leading-out cable is connected with the fourth leading-out cable; and the first leading-out cable and the third leading-out cable are used as output ends. The photovoltaic component system has the beneficial effects that the cables are saved, the cost is reduced, the circuit loss in the operation process of a photovoltaic system is also reduced; and in addition, redundant cables do not need to be bundled and fixed, so that the operation of workers is convenient, and the labor is saved.
Description
Technical field
The present invention relates to the photovoltaic module technical field, relate in particular to a kind of photovoltaic module system.
Background technology
Photovoltaic one word develops so far, and everybody is very familiar to it.We refer to solar energy power generating by usually said solar power generation, and photovoltaic generation is to utilize the photovoltaic effect of interface and a kind of technology of luminous energy directly being changed into electric energy.
As far back as 1839, French scientist shellfish Crelle just found, illumination can make between the different parts of semi-conducting material and produce potential difference.This phenomenon was called as " photovoltaic effect " afterwards, was called for short " photovoltaic effect ".1954, the proper guest of American scientist and Pierre pine were made practical single crystal silicon solar cell first in U.S.'s Bell Laboratory, be born solar energy to be converted to the practical photovoltaic power generation technology of electric energy.
After 20 century 70s; along with the development of modern industry, global energy crisis and atmosphere polluting problem become increasingly conspicuous, and traditional fuel energy reduces day by day; the harm that environment is caused becomes increasingly conspicuous, and the whole world approximately has 2,000,000,000 people to can not get normal energy supply simultaneously.In this time, the whole world has all been invested regenerative resource to sight, wishes that regenerative resource can change the mankind's energy resource structure, keeps long-range sustainable development, and among this, solar energy forms the focus of paying attention to into people with its exclusive advantage.Abundant solar radiant energy is the important energy, is the energy inexhaustible, nexhaustible, pollution-free, that the mankind can freely utilize.Just because of these unique advantages of solar energy, after the eighties in 20th century, the kind of solar cell is on the increase, range of application is day by day wide, market scale also progressively enlarges.
After the nineties in 20th century, photovoltaic generation is fast-developing, and the U.S. is the country that formulates the earliest the development plan of photovoltaic generation." 1,000,000 roof " plan was proposed again in 1997.Japan started new sunlight program in 1992, and Japanese photovoltaic module production accounted for 50% of the world by 2003, and front 10 large manufacturers in the world have 4 in Japan.And the new regenerative resource law regulation of Germany the photovoltaic generation rate for incorporation into the power network, greatly promoted photovoltaic market and industry development, make Germany become after Japan world's photovoltaic generation country with fastest developing speed.The states such as Switzerland, France, Italy, Spain, Finland also formulate the photovoltaic development plan one after another, and the throwing huge fund carries on technical development and accelerates process of industrialization.
World's photovoltaic module is in nineteen ninety---annual average rate of increase in 2005 approximately 15%.The later stage nineties 20th century, develop rapidlyer, photovoltaic module production in 1999 reaches 200 megawatts.The production cost of photovoltaic module drops to below 3 dollars/watt.The photovoltaic industry of 2006 investigation shows, by 2010, the year development speed of photovoltaic industry will remain on more than 30%.Annual sales amount will be increased to from 7,000,000,000 U.S. dollars of 2004 30000000000 U.S. dollars of 2010.The photovoltaic manufacturing company of many old brands also transfers profit to from original loss of capital.
Solar energy power generating can occupy the important seat of world energy sources consumption in the near future, will become the main body of world energy supplies.Instantly, many countries Renewable Energy Development as the important way that will realize sustainable development future, and China also with the important component part of the regenerative resource take solar energy as representative as following low-carbon economy.In recent years, state revenue and expenditure strengthens year by year to the subsidy dynamics of solar energy industry, a wide development space is provided for undoubtedly the photovoltaic industry of Chinese future.Although the cost of photovoltaic generation is also higher at present, but in the long run, along with the lifting of technology, the continuous decrease of photovoltaic industrial chain links cost, and other traditional energy forms is saturated gradually, and solar energy will become later on one of energy form of main flow.
Since years development, no matter being grid type, is all that as required voltage swing is connected the assembly of some from net type or mixed type photovoltaic system.existing photovoltaic module connected mode as shown in Figure 1, be usually used at present open-air large scale system, formed by many rows photovoltaic module, between every row's segmented assemblies successively with after cable series connection, again the both positive and negative polarity of every row's head and the tail is pulled out with long cable 1 and access conflux circuit or parallel network circuit, mainly as a loop with single component string, because the section of pulling out of long cable 1 is very long, total length near every row's component string, extremely waste cable, simultaneously, width is the photovoltaic module of 800～1000mm in the market, the unit cable that its terminal box is drawn mostly be 850mm and or longer, usually have unnecessary cable, and the more long loss that more increases circuit of cable.In addition, avoid hindering photovoltaic module normal operation and attractive in appearance, unnecessary cable also needs binding with fixing, has increased staff's operation.
In recent years, in order to solve the problems of the technologies described above, people improve multiple connected mode, the effect that wherein connects photovoltaic module (as Fig. 2) in the mode of wire jumper still can, although can save pulling out of long cable 1, but the cable that connects between photovoltaic module than before the terminal box single cable of drawing long a lot, manufacturer remains will the longer the better with cable production, with the connection of a plurality of photovoltaic modulies in interval between satisfying.In addition, the connected mode of wire jumper is complex structure not only, and complicated cable also can affect the light-receiving area of photovoltaic module and attractive in appearance.Therefore, thus people wish to find suitable connected mode to solve the problems of the technologies described above always.
Summary of the invention
The technical problem to be solved in the present invention is: long in order to solve cable, circuit loss is large, and unhandy technical problem the invention provides a kind of photovoltaic module system.
the technical solution adopted for the present invention to solve the technical problems is: a kind of photovoltaic module system, comprise the two above photovoltaic module strings of row, every row's component string includes the photovoltaic module more than two, connect by cable series connection between photovoltaic module in every row, set arbitrary neighborhood two row's component string and be respectively row's component string and lower row's component string, stem photovoltaic module lead-out wire in described upper row's component string is that the first outgoing cable is for anodal, afterbody photovoltaic module lead-out wire in upper row's component string is that the second outgoing cable is negative pole, stem photovoltaic module lead-out wire in described lower row's component string is that the 3rd outgoing cable is negative pole, afterbody photovoltaic module lead-out wire in lower row's component string is that the 4th outgoing cable is for anodal, described the second outgoing cable is connected with the 4th outgoing cable, described the first outgoing cable and the 3rd outgoing cable are as output.The technical program is saved cable by any two rows (namely double) component string is connected into a loop, and is simple and reasonable, reduces the impact on light-receiving area.
In order to save cable, make wire structures compacter, the cable in described upper row's component string is installed in the bottom of photovoltaic module, and the cable in described lower row's component string is installed in the top of photovoltaic module.
The invention has the beneficial effects as follows, photovoltaic module of the present invention system, by with the two rows component string as a loop, saved the long cable of pulling out, simple in structure, rational Application, not only reduced cost, and reduced the circuit loss in the photovoltaic system running, need not in addition to bundle fixing to unnecessary cable, be convenient to workman's operation, save manpower.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the syndeton schematic diagram of photovoltaic module in prior art.
Fig. 2 is the syndeton schematic diagram of photovoltaic module jumper in prior art.
Fig. 3 is the syndeton schematic diagram of photovoltaic module system embodiment one of the present invention.
Fig. 4 is the syndeton schematic diagram of photovoltaic module system embodiment two of the present invention.
In figure: 1, long cable, 2, photovoltaic module, 3, upper row's component string, 4, lower row's component string, the 5, first outgoing cable, the 6, second outgoing cable, the 7, the 3rd outgoing cable, the 8, the 4th outgoing cable.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
as shown in Figure 3, embodiments of the invention one, comprise the two above photovoltaic module strings of row, what draw in figure is arbitrary neighborhood two row's component string, the row's of being respectively component string 3 and lower row's component string 4, every row's component string includes the photovoltaic module 2 more than two, connect by cable series connection between photovoltaic module 2 in every row, namely in upper row's component string 3, the negative pole of the first photovoltaic module is connected with the positive pole of the second photovoltaic module, the negative pole of the second photovoltaic module is connected with the positive pole of the 3rd photovoltaic module, the negative pole of the 3rd photovoltaic module is connected with the positive pole of the 4th photovoltaic module, by that analogy, in lower row's component string 4, the positive pole of the first photovoltaic module is connected with the negative pole of the second photovoltaic module, and the positive pole of the second photovoltaic module is connected with the negative pole of the 3rd photovoltaic module, and the positive pole of the 3rd photovoltaic module is connected with the negative pole of the 4th photovoltaic module, by that analogy.Wherein, the both positive and negative polarity of initial light photovoltaic assembly and change as required, the present embodiment is only for illustrating.
Therefore, the stem photovoltaic module lead-out wire in upper row's component string 3 is that the first outgoing cable 5 is positive pole, and the afterbody photovoltaic module lead-out wire in upper row's component string 3 is that the second outgoing cable 6 is negative pole; Stem photovoltaic module lead-out wire in lower row's component string 4 is that the 3rd outgoing cable 7 is negative pole, and the afterbody photovoltaic module lead-out wire in lower row's component string 4 is that the 4th outgoing cable 8 is for anodal.The both positive and negative polarity of above-mentioned head and the tail also can exchange according to connecting needs.The second outgoing cable 6 is connected with the 4th outgoing cable 8, and the first outgoing cable 5 and the 3rd outgoing cable 7 access as output conflux circuit or parallel network circuit.
Cable in upper row's component string 3 is installed in the bottom of photovoltaic module 2, and the cable in described lower row's component string 4 is installed in the top of photovoltaic module 2.
Connected mode of the present invention can also be according to the difference of components distribution, and Combination application up and down is illustrated in figure 4 as the structural representation of two, four outgoing cables of embodiment, each two of left and right.
No matter the assembly of circulation is 126 cell pieces or the made assembly of 156 cell pieces in the market, on its terminal box, unit cable length is all in the 850mm left and right, What is more is 1200mm, the photovoltaic module positive pole is drawn one, negative pole is drawn one, and approximately 50% length of cable is generally only used in the connection between two photovoltaic modulies, and it is all unnecessary standby that 50% left and right is arranged, and manufacturer always thinks that the cable of producing is that the longer the better.In the present invention, assembly cable used can save unnecessary standby cable, length can reduce 40%～53%, only the unit cable on terminal box need to be produced in 400mm～650mm scope and get final product, (long cable 1 probably has 10～25m), greatly reduces costs, and reduces kwh loss to need not to pull out long cable, and need not fixing unnecessary cable, convenient operation, overall appearance, illumination effect reduces.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (2)
1. photovoltaic module system, it is characterized in that: comprise the two above photovoltaic module strings of row, every row's component string includes the photovoltaic module (2) more than two, photovoltaic module in every row connects by cable series connection between (2), set arbitrary neighborhood two row's component string and be respectively row's component string (3) and lower row's component string (4), stem photovoltaic module lead-out wire in described upper row's component string (3) is that the first outgoing cable (5) is for anodal, afterbody photovoltaic module lead-out wire in upper row's component string (3) is that the second outgoing cable (6) is negative pole, stem photovoltaic module lead-out wire in described lower row's component string (4) is that the 3rd outgoing cable (7) is negative pole, afterbody photovoltaic module lead-out wire in lower row's component string (4) is that the 4th outgoing cable (8) is for anodal, described the second outgoing cable (6) is connected with the 4th outgoing cable (8), described the first outgoing cable (5) and the 3rd outgoing cable (7) are as output.
2. photovoltaic module as claimed in claim 1 system, it is characterized in that: the cable in described upper row's component string (3) is installed in the bottom of photovoltaic module (2), and the cable in described lower row's component string (4) is installed in the top of photovoltaic module (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100636879A CN103151409A (en) | 2013-02-28 | 2013-02-28 | Photovoltaic component system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100636879A CN103151409A (en) | 2013-02-28 | 2013-02-28 | Photovoltaic component system |
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| CN103151409A true CN103151409A (en) | 2013-06-12 |
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Cited By (3)
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| CN104966576A (en) * | 2015-06-26 | 2015-10-07 | 安徽顺驰电缆有限公司 | Energy-saving high-efficiency power cable |
| WO2016001695A1 (en) | 2014-07-01 | 2016-01-07 | ArcelorMittal Investigación y Desarrollo, S.L. | Panel provided with a photovoltaic device |
| JP2018078684A (en) * | 2016-11-07 | 2018-05-17 | 日本電信電話株式会社 | Solar cell module, solar cell panel, and solar cell panel group |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016001695A1 (en) | 2014-07-01 | 2016-01-07 | ArcelorMittal Investigación y Desarrollo, S.L. | Panel provided with a photovoltaic device |
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| JP2018078684A (en) * | 2016-11-07 | 2018-05-17 | 日本電信電話株式会社 | Solar cell module, solar cell panel, and solar cell panel group |
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Application publication date: 20130612 |