CN105245187A - Method and test device for monitoring solar cell piece anti-PID performance - Google Patents
Method and test device for monitoring solar cell piece anti-PID performance Download PDFInfo
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- CN105245187A CN105245187A CN201510714262.9A CN201510714262A CN105245187A CN 105245187 A CN105245187 A CN 105245187A CN 201510714262 A CN201510714262 A CN 201510714262A CN 105245187 A CN105245187 A CN 105245187A
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 230000004888 barrier function Effects 0.000 claims abstract description 22
- 230000010148 water-pollination Effects 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 13
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000006731 degradation reaction Methods 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 29
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 229910004205 SiNX Inorganic materials 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
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- Photovoltaic Devices (AREA)
Abstract
The invention discloses a method for monitoring solar cell piece anti-PID performance. The method comprises the following steps: S1) adjusting process conditions of a forming process of a hydrophilic barrier layer on the surface of a solar cell piece, testing contact angles of the hydrophilic barrier layer on the surface of the solar cell piece obtained under different process conditions, placing the solar cell pieces having different contact angles to an environment test chamber for testing to obtain corresponding anti-PID performance attenuation rates of the solar cell pieces having different contact angles, and establishing a standard database A of the anti-PID performance attenuation rates corresponding to the solar cell pieces having different contact angles; S2) making contact angle control specifications according to the standard database A established in the step S1); and S3) testing the solar cell pieces and carrying out control according to the control specifications and the like. Meanwhile, the invention discloses a test device for monitoring the solar cell piece anti-PID performance. According to the method and test device for monitoring the anti-PID performance of the solar cell pieces, effective monitoring is carried out on the anti-PID performance of the solar cell pieces by testing the contact angles, so that the reliability of the cells is improved; and effects of easy operation and high precision are achieved.
Description
Technical field
The present invention relates to a kind of performance test methods and device thereof of solar cell piece, particularly relate to a kind of method and the testing apparatus thereof of monitoring the anti-PID performance of solar cell piece, for testing the anti-PID performance of the solar cell piece with hydrophily barrier layer and monitor, belong to solar cell production technical field.
Background technology
Along with photovoltaic generation occupies more and more important seat in world energy consumption, in actual application, electricity generation system can integrated multiple photovoltaic module, under assembly can be exposed to very high voltage, under long-term high-tension effect, there is leaky between glass and encapsulating material in assembly, make a large amount of electric charge and Na
+be enriched in cell piece surface, cause surface passivation antireflective coating to lose efficacy, PN junction lost efficacy subsequently, and finally make assembly property continuous decrement, this decay is called as current potential and brings out decay (PotentialInducedDegration), i.e. PID effect.The mechanism causing this type of to decay is many-sided, such as, under above-mentioned high-tension effect, occurs Ion transfer phenomenon in the encapsulating material of assembly battery and the material of assembly upper surface layer and undersurface layer; Hot carrier phenomenon is there is in battery; The reallocation of electric charge reduces the active layer of battery; Relevant circuit etch; Etc..In recent years, in solar cell application process, there occurs the case of many solar module power attenuations, have a strong impact on solar cell widely using and promoting in each application, therefore, of crucial importance to the PID monitoring of solar cell.
In order to effectively reduce PID effect, realize mainly through battery, assembly, system three aspects.Analyze from assembly end, main method is the EVA adopting anti-PID, uses the EVA of low vinyl acetate content to alleviate the generation of PID phenomenon; From system end, main method is module frame ground connection, inverter direct current section minus earth etc.; Analyze from battery-end, current research direction mainly comprises following two aspects: the refractive index in (1) raising reflector can reduce the generation of PID phenomenon effectively, and after the refractive index of antireflection layer is greater than 2.2, PID attenuation rate reduces.Many solar breeders are had also to find similar phenomenon at present in the relation test for cell piece and PID, so improving SiNx thin-film refractive index is one of means of anti-PID.(2) at cell piece Surface Creation one deck SiOx film as barrier layer, effectively can stop Na
+move to cell piece surface, thus avoid the decay of battery component power.
In prior art, by adopting the mode of ultraviolet ionization to generate ozone, ozone being oxidized silicon chip surface, forming the comparatively fine and close SiOx thin layer of one deck as barrier layer at silicon chip surface, thus stopping Na
+intrusion, and SiOx layer has good passivation effect, effectively can reduce the recombination rate on cell piece surface, and this SiOx layer is thinner, the tunneling effect of electronics clearly, a part of electric charge of cell piece surface enrichment can be led away, thus prevent from causing because of electric charge accumulation passivated reflection reducing to penetrate a layer decreased effectiveness, make cell piece have certain anti-PID ability.
But, under different process conditions, as ozone concentration, the SiOx layer compactness of formation and uniformity variant, anti-PID performance is also variant.Therefore, need to seek to contact and set up between different technology conditions and the anti-PID performance of SiOx layer formed effectively to monitor, thus reach the effect carrying out the anti-PID performance of management and control cell piece by Controlling Technology condition.
Summary of the invention
The present invention is directed in prior art, to the technical problem that the anti-PID performance of the solar cell piece with barrier layer cannot effectively, accurately be monitored, a kind of method of testing and the testing apparatus thereof of monitoring the anti-PID performance of solar cell piece are provided, accurately, easy, the anti-PID performance of testing solar battery sheet rapidly, simultaneously, easy to operate, reliability is high.
For this reason, the present invention adopts following technical scheme:
Monitor a method for the anti-PID performance of solar cell piece, comprise the steps:
S1: the process conditions regulating solar cell piece surface hydrophilicity barrier layer forming process, the contact angle on the hydrophily barrier layer on the solar cell piece surface obtained under test different technology conditions, the solar cell piece with different contact angle is positioned over environmental test chamber test, obtain the anti-PID performance degradation rate that the solar cell piece of different contact angle is corresponding, set up the standard database A with the anti-PID performance degradation rate corresponding to solar cell piece of different contact angle;
S2: according to the standard database A set up in step S1, formulates contact angle management and control specification;
S3: choose N number of measurement point on tested solar cell piece, N be more than or equal to 1 natural number, be tested drop with the liquid identical with step S1, the drop getting same volume is measured, test the contact angle of those measurement points, compare with the data in standard database A, and according to the management and control specification formulated in step S2, draw the conclusion whether tested solar cell piece is qualified, thus effective management and control is carried out to the uniformity on solar cell piece hydrophily and/or hydrophily barrier layer.
Further, in step sl, the measurement of contact angle is using distilled water as tested media, and the drop getting same volume is measured.
Further, N be more than or equal to 2 natural number.
Further, N be more than or equal to 5 natural number.
Further, described hydrophily barrier layer is SiOx thin layer.
Another aspect of the present invention, also disclose a kind of testing apparatus monitoring the anti-PID performance of solar cell piece, comprise frame and be arranged at the objective table for placing tested solar cell piece in frame, it is characterized in that: the objective table also comprised for accurately moving described objective table moves assembly, for accurately providing the automatic continued inlet system of test droplets, for the optical system for collecting of collecting test drop pattern and the computer for the image information of optical system for collecting collection described in treatment and analysis, the image information collected is sent to computer by cable by optical system for collecting in real time.
Further, described objective table moves assembly and comprises stepping motor and controllor for step-by-step motor, and controllor for step-by-step motor, according to instruction, drives the running of stepping motor, automatically completes the arrival of position, testing site.
Further, described optical system for collecting comprises a high accuracy continuous print zoom not zoom microscope, the pocket video camera of high pixel and industrial backlight light source, described industrial backlight light source and video camera are arranged at the both sides of objective table respectively, and microscope is arranged at the front of video camera.
Further, the interval time that described video camera is taken pictures for twice is 8ms-12ms;
Further, described automatic continued inlet system comprises precise injection pump and syringe pump mobile system.
Further, the top of described precise injection pump is provided with exhaust nozzle.Can the volume of precision control drop, more precisely control reservoir quantity, and avoid the generation of bubble.
Compared with prior art, beneficial effect of the present invention is:
(1) automatic measurement function is realized: gathered to computer by certain hour interval by image by video camera, automatically measured by contact angle;
(2) multiple test point can be selected, hydrophily detection is carried out to the zones of different on cell piece surface hydrophilicity barrier layer, thus judge the uniformity on hydrophily barrier layer, respectively choose a test point as each and center position can be selected at four angles of cell piece.
(3) optimization of sampling system: adopt precise injection pump, carry out auto injection, more precisely control reservoir quantity, and bubble can be avoided to produce.
Therefore, the present invention is by measuring the contact angle on solar cell piece surface, quantification monitoring is carried out to the anti-PID barrier layer of solar cell piece, test process is easy and simple to handle, quick, be applicable to the hydrophilic monitoring of production line cell piece, be conducive to follow-up hydrophily and PID correlation analyses, for the research of solar cell PID provides important evidence.And can carry out effective monitoring to the anti-PID performance of cell piece, Timeliness coverage is abnormal, reduces the generation of defective products, thus improves the reliability of cell piece.Easy and simple to handle, reliability is high, repeatable accuracy is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of testing apparatus of the present invention;
Fig. 2 is the structural representation of testing apparatus sampling system of the present invention;
In figure, 1 is frame, and 2 is objective table, and 3 move assembly for objective table, and 4 is automatic continued inlet system, and 41 is precise injection pump, and 42 is syringe pump mobile system, and 43 is exhaust nozzle, and 5 is optical system for collecting, and 51 is microscope; 52 is video camera; 53 is industrial backlight light source; 6 is computer, and 7 is cable.
Embodiment
Be further described in detail structure of the present invention below in conjunction with the drawings and specific embodiments, part same as the prior art in the present invention is with reference to prior art.
Embodiment 1:
The present embodiment is described for SiOx layer as hydrophily barrier layer.
The method of the anti-PID performance of monitoring solar cell piece of the present invention, comprises the steps:
S1: using distilled water as tested media, the drop getting same volume is measured, by regulating O3 concentration, the contact angle on the solar cell piece surface obtained under recording different O3 concentration conditions, the solar cell piece with different contact angle is positioned over environmental test chamber test, obtain the PID attenuation rate that the solar cell piece of different contact angle is corresponding, set up the standard database A with the PID attenuation rate corresponding to solar cell piece of different contact angle;
S2: according to the standard database A set up in step S1, formulates contact angle management and control specification;
S3: choose N number of measurement point on tested solar cell piece surface, N be more than or equal to 2 natural number, the contact angle of test different measuring point, in the present embodiment, N equals 5, each and center position in four angles that 5 measurement points lay respectively at cell piece; Be tested drop with the liquid identical with step S1, the drop getting same volume is measured, test the contact angle of those measurement points, compare with the data in standard database A, and according to the management and control specification formulated in step S2, draw the conclusion whether tested solar cell piece is qualified, thus effective management and control is carried out to the uniformity of solar cell piece hydrophily and SiOx layer.
The present invention, by the hydrophily of monitoring solar battery surface, reaches the object of the anti-PID of monitoring solar cell piece.Hydrophily refers to the molecule with polar group, has larger affine performance, can attract hydrone or be dissolved in water glassware for drinking water, the surface of solid material that this quasi-molecule is formed, easily soak by water.Contact angle refers to a drop in a solid level plane, and the tangent line of the liquid-vapor interface done at gas, liquid, solid three-phase point of interface place is through the angle liquid and solid-liquid boundary line.If θ < 90 °, then the surface of solids has hydrophily, i.e. liquid more wetting solid, and its angle is less, then represent that wetability is better.So contact angle can as judging hydrophilic foundation.Therefore, if be distributed with even, the fine and close SiOx film of one deck on cell piece surface, then cell piece surface has good hydrophily, and anti-PID performance is strong; On the contrary, if the SiOx film on cell piece surface is formed bad, then the hydrophily on cell piece surface is poor, and anti-PID performance is weak.Thus the hydrophily on monitoring battery sheet surface can the anti-PID performance of monitoring battery sheet effectively.
By the anti-PID performance on solar cell piece anti-PID barrier layer under test different technology conditions, formulate standard database, thus the process conditions in the forming process of regulation and control solar cell piece barrier layer, obtain solar cell piece of good performance.Test process is easy and simple to handle, quick, and reliability is high, repeatable accuracy is high, and in the process of producing, Timeliness coverage is abnormal, reduces the generation of defective products, thus improves the reliability of cell piece.
Although the present embodiment is described using SiOx layer as hydrophily barrier layer, the present invention also may be used for the detection that other have hydrophilic barrier layer.
Embodiment 2:
As shown in Figure 1, 2, the testing apparatus of the anti-PID performance of monitoring solar cell piece of the present invention, comprise frame 1 and be arranged at the objective table 2 for placing tested solar cell piece in frame, objective table for accurately moving described objective table moves assembly 3, for accurately providing the automatic continued inlet system 4 of test droplets, for the optical system for collecting 5 of collecting test drop pattern and the computer 6 of image information that gathers for optical system for collecting described in treatment and analysis, the image information collected is sent to computer by cable 7 by optical system for collecting in real time;
Objective table moves assembly 3 and comprises stepping motor and controllor for step-by-step motor, and controllor for step-by-step motor, according to instruction, drives the running of stepping motor, automatically completes the arrival of position, testing site.
Optical system for collecting 5 comprises a high accuracy continuous print zoom not zoom microscope 51, the pocket video camera of high pixel 52 and industrial backlight light source 53, described industrial backlight light source 53 and video camera 52 are arranged at the both sides of objective table 2 respectively, microscope 51 is arranged at the front of video camera 52, and industrial backlight light source 53 carries out brightness regulation by light-source brightness adjuster.The interval time that video camera 52 is taken pictures for twice is 10ms.Because solar cell piece contact angle angle after ozone treatment is less, shortens and take pictures for twice the acquisition interval time, more effectively can test it and can shorten to 10ms;
Automatic continued inlet system 4 comprises precise injection pump 41 and syringe pump mobile system 42, and the top of precise injection pump is provided with exhaust nozzle 43.If have bubble in discovery injector, by exhaust nozzle, bubble is discharged, the impact of bubble during fluid injection can be avoided.
Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Claims (10)
1. monitor a method for the anti-PID performance of solar cell piece, comprise the steps:
S1: the process conditions regulating solar cell piece surface hydrophilicity barrier layer forming process, the contact angle on the hydrophily barrier layer on the solar cell piece surface obtained under test different technology conditions, the solar cell piece with different contact angle is positioned over environmental test chamber test, obtain the anti-PID performance degradation rate that the solar cell piece of different contact angle is corresponding, set up the standard database A with the anti-PID performance degradation rate corresponding to solar cell piece of different contact angle;
S2: according to the standard database A set up in step S1, formulates contact angle management and control specification;
S3: choose N number of measurement point on tested solar cell piece, N be more than or equal to 1 natural number, be tested drop with the liquid identical with step S1, the drop getting same volume is measured, test the contact angle of those measurement points, compare with the data in standard database A, and according to the management and control specification formulated in step S2, draw the conclusion whether tested solar cell piece is qualified, thus effective management and control is carried out to the uniformity on solar cell piece hydrophily and/or hydrophily barrier layer.
2. the method for the anti-PID performance of monitoring solar cell piece according to claim 1, is characterized in that: in step sl, and the measurement of contact angle is using distilled water as tested media, and the drop getting same volume is measured.
3. the method for the anti-PID performance of monitoring solar cell piece according to claim 1, is characterized in that: N be more than or equal to 2 natural number.
4. the method for the anti-PID performance of monitoring solar cell piece according to claim 1, is characterized in that: N be more than or equal to 5 natural number.
5. the method for the anti-PID performance of monitoring solar cell piece according to claim 1, is characterized in that: described hydrophily barrier layer is SiOx thin layer.
6. the testing apparatus of the anti-PID performance of the monitoring solar cell piece for claim 1-5 either method, comprise frame and be arranged at the objective table for placing tested solar cell piece in frame, it is characterized in that: the objective table also comprised for accurately moving described objective table moves assembly, for accurately providing the automatic continued inlet system of test droplets, for the optical system for collecting of collecting test drop pattern and the computer for the image information of optical system for collecting collection described in treatment and analysis, the image information collected is sent to computer by cable by optical system for collecting in real time.
7. the testing apparatus of the anti-PID performance of monitoring solar cell piece according to claim 6, it is characterized in that: described objective table moves assembly and comprises stepping motor and controllor for step-by-step motor, controllor for step-by-step motor is according to instruction, drive the running of stepping motor, automatically complete the arrival of position, testing site.
8. the testing apparatus of the anti-PID performance of monitoring solar cell piece according to claim 6, it is characterized in that: described optical system for collecting comprises a high accuracy continuous print zoom not zoom microscope, the pocket video camera of high pixel and industrial backlight light source, described industrial backlight light source and video camera are arranged at the both sides of objective table respectively, and microscope is arranged at the front of video camera.
9. the testing apparatus of the anti-PID performance of monitoring solar cell piece according to claim 6, is characterized in that: the interval time that described video camera is taken pictures for twice is 8ms-12ms.
10. the testing apparatus of the anti-PID performance of monitoring solar cell piece according to claim 6, it is characterized in that: described automatic continued inlet system comprises precise injection pump and syringe pump mobile system, the top of described precise injection pump is provided with exhaust nozzle.
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| CN201510714262.9A CN105245187B (en) | 2015-10-28 | 2015-10-28 | Method and test device for monitoring solar cell piece anti-PID performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915177A (en) * | 2016-05-04 | 2016-08-31 | 西安交通大学 | Crystalline silicon photovoltaic power station PID online detection method |
| CN107507785A (en) * | 2017-08-14 | 2017-12-22 | 通威太阳能（安徽）有限公司 | A kind of reduce tests the technique that anti-PID hydrophilies are isolated with piece |
-
2015
- 2015-10-28 CN CN201510714262.9A patent/CN105245187B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 龚铁裕 等: "解决光伏电站组件的抗潜在电势诱导衰减效应的方法", 《电力与能源》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915177A (en) * | 2016-05-04 | 2016-08-31 | 西安交通大学 | Crystalline silicon photovoltaic power station PID online detection method |
| CN105915177B (en) * | 2016-05-04 | 2017-12-08 | 西安交通大学 | A kind of crystalline silicon photovoltaic power station PID online test methods |
| CN107507785A (en) * | 2017-08-14 | 2017-12-22 | 通威太阳能（安徽）有限公司 | A kind of reduce tests the technique that anti-PID hydrophilies are isolated with piece |
| CN107507785B (en) * | 2017-08-14 | 2019-08-23 | 通威太阳能（安徽）有限公司 | A kind of reduce tests the technique that anti-PID hydrophily is isolated with piece |
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| CN105245187B (en) | 2017-04-19 |
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Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: trina solar Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: TRINASOLAR Co.,Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: trina solar Ltd. |