CN102569510A - Method for recovering power attenuation of solar assembly manually at fixed period - Google Patents
Method for recovering power attenuation of solar assembly manually at fixed period Download PDFInfo
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- CN102569510A CN102569510A CN2011104590540A CN201110459054A CN102569510A CN 102569510 A CN102569510 A CN 102569510A CN 2011104590540 A CN2011104590540 A CN 2011104590540A CN 201110459054 A CN201110459054 A CN 201110459054A CN 102569510 A CN102569510 A CN 102569510A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a method for recovering the power attenuation of a solar assembly manually at a fixed period. The solar assembly is formed by connecting n batteries, wherein n is not smaller than 3. The method comprises the steps: (1) under an initial state, the anode of the first battery is led out to serve as the anode output of the solar assembly, the electrode connection manner between adjacent batteries is that the cathode of the former battery is electrically connected with the anode of the latter battery, and a cathode of the nth battery is lead out to serve as the cathode output of the solar assembly; and (2), when the solar assembly is subjected to power attenuation recovery, the cathode of the first battery is led out to serve as the cathode output of the cathode, the electrode connection manner between the adjacent batteries is that the anode of the former battery is electrically connected with the cathode of the latter battery, and the anode of the nth battery is led out to serve the anode output of the solar assembly. The method disclosed by the invention can be used for realizing the recovery of the power attenuation of the solar assembly.
Description
Technical field
The present invention relates to a kind of manual regular solar components power attenuation restoration methods.
Background technology
PID (Potential Induced Degradation) phenomenon or surface polarization (surface polarization) are that the efficient sun electricity generation module in the present photovoltaic industry causes power attenuation because solar components exists over the ground malleation or negative pressure to cause that the assembly surface electric charge gathers when in system, using in system, in the short time as some months or the rapid unusually reduction phenomenon of emergent power one or two years.
Early stage sunpower has set forth exclusive surface polarization (surface polarization) phenomenon of back electrode battery and has produced principle and prevent and treat method in " The Surface Polarization Effect in High-Efficiency Silicon Solar Cells " document, to be high positive voltage over the ground be that it produces the basic reason of polarization phenomena to battery in the assembly.In the recent period solon company announced its study for a long period of time PID phenomenon Study report " Potential Induced Degradation of solar cells and panels " its mainly set forth the principle that crystal silicon PID produces through experimental data, to be higher negative voltage over the ground be that it produces the basic reason of polarization phenomena to battery in the assembly.
Patent 0260673,0196535 " preventing harmful polarization of solar cells " and CN101133500 " prevent be harmful to solar energy polarization " set forth assembly some prevent the mode that polarizes: 1, add one deck silica dioxide coating with holes between battery surface or passivation layer and the battery; Form a turning circuit and prevent harmful polarization, the method increases the battery manufacturing cost and has reduced the efficient of battery to a certain extent.2, some solutions that it is mainly recommended in the system are as 1) use assembly voltage to earth in the resistance change system; 2) inverter of plus earth module and isolating transformer, this quadrat method make assembly have limitation and band isolating transformer in use, have reduced system effectiveness.
Summary of the invention
The technical problem that the present invention will solve is: overcome the deficiency of prior art, a kind of manual regular solar components power attenuation restoration methods is provided, simply and effectively solar components is carried out power attenuation and recover.
The technical solution adopted for the present invention to solve the technical problems is: a kind of manual regular solar components power attenuation restoration methods, and described solar components is connected to form by n piece battery, wherein n >=3;
(1) during initial condition; The positive pole of the 1st battery is drawn the positive electrode output as solar components; The connected mode of electrode is between the adjacent cell: the negative pole of last battery is connected with the positive electrical of a back battery, and the negative pole of n piece battery is drawn the negative electrode output as solar components;
(2) in the time of need carrying out the power attenuation recovery to solar components; The negative pole of the 1st battery is drawn the negative electrode output as solar components; The connected mode of electrode is between the adjacent cell: the positive pole of last battery is connected with the negative electricity of a back battery, and the positive pole of n piece battery is drawn the positive electrode output as solar components.
The invention has the beneficial effects as follows: when solar components moves in system; Assembly can present the voltage of plus or minus over the ground; Because being in the bias voltage of plus or minus, solar components can cause damage to solar components power or solar components itself; For same type component, solar components can cause PID power attenuation phenomenon to solar components during over the ground for negative voltage; Solar components can protect solar components to avoid the influence of PID power attenuation during over the ground for positive voltage, and can play the effect that power attenuation recovers for the solar components assembly that has produced.Therefore regularly change system component above earth potential can play preventive and therapeutic effect to the PID phenomenon, and during initial condition, solar components is negative voltage over the ground among the present invention; In the time of need carrying out the power attenuation recovery to solar components,, change the solar components voltage to earth through changing the connected mode between the battery, the recovery of realization realization solar components component power decay, effectively simple.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further specified.
Fig. 1 is the catenation principle figure of solar components during initial condition among the present invention;
Fig. 2 is the catenation principle figure of solar components when among the present invention solar components being carried out power attenuation and recover;
Embodiment
Combine accompanying drawing that the present invention is further described now.These accompanying drawings are the sketch map of simplification basic structure of the present invention only are described in a schematic way, so it only shows the formation relevant with the present invention.
A kind of manual regular solar components power attenuation restoration methods, solar components is connected to form by n piece battery, n >=3;
(1) during initial condition; As shown in Figure 1; The positive pole of the 1st battery is drawn the positive electrode output as solar components; The connected mode of electrode is between the adjacent cell: the negative pole of last battery is connected with the positive electrical of a back battery, and the negative pole of n piece battery is drawn the negative electrode output as solar components, and solar components is negative voltage over the ground;
(2) in the time of need carrying out the power attenuation recovery to solar components; As shown in Figure 2; The negative pole of the 1st battery is drawn the negative electrode output as solar components; The connected mode of electrode is between the adjacent cell: the positive pole of last battery is connected with the negative electricity of a back battery, and the positive pole of n piece battery is drawn the positive electrode output as solar components.Solar components is positive voltage over the ground, realizes the recovery of solar components component power decay.
Therefore regularly change system component above earth potential can play preventive and therapeutic effect to the PID phenomenon, and during initial condition, like common P type substrate polycrystalline solar assembly, solar components is negative voltage over the ground among the present invention; In the time of need carrying out the power attenuation recovery to solar components,, change the solar components voltage to earth through changing the connected mode between the battery, the recovery of realization realization solar components component power decay, effectively simple.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (1)
1. manual regular solar components power attenuation restoration methods, described solar components is connected to form by n piece battery, and n >=3 wherein is characterized in that:
(1) during initial condition; The positive pole of the 1st battery is drawn the positive electrode output as solar components; The connected mode of electrode is between the adjacent cell: the negative pole of last battery is connected with the positive electrical of a back battery, and the negative pole of n piece battery is drawn the negative electrode output as solar components;
(2) in the time of need carrying out the power attenuation recovery to solar components; The negative pole of the 1st battery is drawn the negative electrode output as solar components; The connected mode of electrode is between the adjacent cell: the positive pole of last battery is connected with the negative electricity of a back battery, and the positive pole of n piece battery is drawn the positive electrode output as solar components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104590540A CN102569510A (en) | 2011-12-31 | 2011-12-31 | Method for recovering power attenuation of solar assembly manually at fixed period |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104590540A CN102569510A (en) | 2011-12-31 | 2011-12-31 | Method for recovering power attenuation of solar assembly manually at fixed period |
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| CN102569510A true CN102569510A (en) | 2012-07-11 |
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| CN2011104590540A Pending CN102569510A (en) | 2011-12-31 | 2011-12-31 | Method for recovering power attenuation of solar assembly manually at fixed period |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019120208A1 (en) * | 2017-12-20 | 2019-06-27 | 华为技术有限公司 | Degradation recovery method and apparatus for photovoltaic module in photovoltaic power station |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431121A (en) * | 2007-11-07 | 2009-05-13 | 展丰能源技术（上海）有限公司 | Processing method for double-layer anti-reflection film of solar cell |
| CN101546787A (en) * | 2008-03-26 | 2009-09-30 | 展丰能源技术（上海）有限公司 | Method for processing low-attenuation high-efficiency floating-zone silicon solar battery |
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- 2011-12-31 CN CN2011104590540A patent/CN102569510A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431121A (en) * | 2007-11-07 | 2009-05-13 | 展丰能源技术（上海）有限公司 | Processing method for double-layer anti-reflection film of solar cell |
| CN101546787A (en) * | 2008-03-26 | 2009-09-30 | 展丰能源技术（上海）有限公司 | Method for processing low-attenuation high-efficiency floating-zone silicon solar battery |
Non-Patent Citations (1)
| Title |
|---|
| J BERGHOLD, O FRANK, H HOEHNE, S PINGEL, ET AL.: "Potential Induced Degradation of solar cells and panels", 《25TH EUROPEAN PHOTOVOLTAIC SOLAR ENERGY CONFERENCE(EUPVSEC)》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019120208A1 (en) * | 2017-12-20 | 2019-06-27 | 华为技术有限公司 | Degradation recovery method and apparatus for photovoltaic module in photovoltaic power station |
| US11329600B2 (en) | 2017-12-20 | 2022-05-10 | Huawei Digital Power Technologies Co., Ltd. | Method and apparatus for rectifying degradation of photovoltaic module in photovoltaic power station |
| US11632075B2 (en) | 2017-12-20 | 2023-04-18 | Huawei Digital Power Technologies Co., Ltd. | Method and apparatus for rectifying degradation of photovoltaic module in photovoltaic power system |
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Application publication date: 20120711 |