CN202405289U - Power attenuation prevention module of automatic solar assembly - Google Patents
Power attenuation prevention module of automatic solar assembly Download PDFInfo
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- CN202405289U CN202405289U CN2011205739952U CN201120573995U CN202405289U CN 202405289 U CN202405289 U CN 202405289U CN 2011205739952 U CN2011205739952 U CN 2011205739952U CN 201120573995 U CN201120573995 U CN 201120573995U CN 202405289 U CN202405289 U CN 202405289U
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- 230000002265 prevention Effects 0.000 title abstract 3
- 230000010287 polarization Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005096 rolling process Methods 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 relates to a power attenuation prevention module of an automatic solar assembly. A normally-closed contact of a KM relay is connected between an A- input end and a B+ input end in series; a normally-open contact of the KM relay is connected between an A+ input end and a B- input end in series; meanwhile, the normally-closed contact of the KM relay is connected between the A+ input end and an OUT+ output end in series; the normally-open contact of the KM relay is connected between the B+ input end and the OUT+ output end in series; simultaneously, the normally-closed contact of the KM relay is connected between the B+ input end and an OUT- output end in series; the normally-open contact of the KM relay is connected between the A- input end and the OUT+ output end in series; and a coil of a BV relay is connected between the A+ input end and the A- input end in series. The power attenuation prevention module of the automatic solar assembly can realize the recovering of the assembly power attenuation of the solar assembly by changing voltage to earth of the solar assembly, and is simple and effective.
Description
Technical field
The utility model relates to a kind of automatic sun can the component power decay prevent and treat module.
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.
The utility model content
The technical problem that the utility model will solve is: overcome the deficiency of prior art, provide a kind of automatic sun the component power decay to prevent and treat module, be used to insert solar components it is carried out the power attenuation recovery.
The utility model solves the technical scheme that its technical problem adopted: a kind of automatic sun can the component power decay be prevented and treated module; The power supply that have four inputs, four switches, two outputs, KM relay, BV relay, counter, is connected with counter; Described four inputs are respectively A+ input, A-input, B+ input, B-input; Described four switches are respectively Q1 switch, Q2 switch, Q3 switch, Q4 switch, and described two lead-out terminals are respectively OUT+ output, OUT-output.
The normally-closed contact of described KM relay is serially connected between A-input and the B+ input; The normally opened contact of described KM relay is serially connected between A+ input and the B-input; Simultaneously, the normally-closed contact of described KM relay is serially connected between A+ input and the OUT+ output, and the normally opened contact of described KM relay is serially connected between B+ input and the OUT+ output; Simultaneously; The normally-closed contact of described KM relay is serially connected between B-input and the OUT-output, and the normally opened contact of described KM relay is serially connected between A-input and the OUT-output, and the coil tandem of described BV relay is between A+ input and A-input; Q1 switch, Q2 switch, Q3 switch, Q4 switch one end connect with the level output interface in corresponding cycle of counter respectively; Ground connection after Q1 switch, Q2 switch, Q3 switch, the Q4 switch other end are connected with the coil of KM relay respectively, the normally-closed contact of BV relay inserts the pulse signal input interface of counter.
Solar components is connected to form by n piece battery, wherein n >=4; (1) positive pole of the 1st of solar components the battery is drawn as A+ and is held; The negative pole of the n/2 integer piece battery of solar components is drawn as A-and is held; The positive pole of the n/2+1 integer piece battery of solar components is drawn the end as B+, and the electrode of the n piece battery of solar components is drawn as B-and held.
The beneficial effect of the utility model is: when the utility model uses; The A+ termination that solar components is drawn is gone into the A+ input of module; The A-termination that solar components is drawn is gone into the A-input of module; The B+ termination that solar components is drawn is gone into the B+ input of module, and the B-termination that solar components is drawn is gone into the B-input of module.
During operate as normal, the A-of solar components holds and is connected with the B+ terminal shortcircuit, and A+ holds and is communicated with the OUT+ output, and the B-end is communicated with the OUT-output, and integral body was negative voltage over the ground after the decay of solar components connection automatic sun ability component power prevented and treated module; Q1 switch, Q2 switch, Q3 switch, when the Q4 switch is pressed respectively, insert counter after utilizing the voltage of solar components A+ end and A-end to pass through the BV relay, voltage signal is arranged daytime; Evening, the no-voltage signal was as the input of the pulse signal of counter, by level output interface output high level, made the coil electricity of KM contactor after the respective cycle rolling counters forward; Then the normally opened contact of KM contactor is closed; Normally-closed contact breaks off, and this moment, the A+ end was connected with the B-terminal shortcircuit, and the A-end is communicated with the OUT-output; The B+ end is communicated with the OUT+ output; Integral body was positive voltage over the ground after the decay of solar components connection automatic sun ability component power prevented and treated module, through changing the recovery that the solar components voltage to earth realizes that the solar components component power decays, simply effectively.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the electrical schematic diagram of the utility model;
Fig. 2 is the circuit catenation principle figure of counter portion in the utility model;
Embodiment
Combine accompanying drawing that the utility model is further described now.The sketch map that these accompanying drawings are simplification is only explained the basic structure of the utility model in a schematic way, so it only shows the formation relevant with the utility model.
As shown in Figure 1; A kind of automatic sun can the component power decay be prevented and treated module; The power supply that have four inputs, four switches, two outputs, KM relay, BV relay, counter, is connected with counter; Four inputs are respectively A+ input, A-input, B+ input, B-input, and four switches are respectively Q1 switch, Q2 switch, Q3 switch, Q4 switch, and two lead-out terminals are respectively OUT+ output, OUT-output.
The normally-closed contact of KM relay is serially connected between A-input and the B+ input; The normally opened contact of KM relay is serially connected between A+ input and the B-input; Simultaneously, the normally-closed contact of KM relay is serially connected between A+ input and the OUT+ output, and the normally opened contact of KM relay is serially connected between B+ input and the OUT+ output; Simultaneously; The normally-closed contact of KM relay is serially connected between B-input and the OUT-output, and the normally opened contact of KM relay is serially connected between A-input and the OUT-output, and the coil tandem of BV relay is between A+ input and A-input.
As shown in Figure 2, counter adopts 74LS 161 counters, also can adopt the counter of other models.Q1 switch, Q2 switch, Q3 switch, Q4 switch one end are connected to the level output interface in corresponding cycle of counter respectively and are specially: Q1 switch, Q2 switch, Q3 switch, Q4 switch are connected with counter 14 pins, 13 pins, 12 pins, 11 pins respectively.Q1 switch, Q2 switch, Q3 switch, the Q4 switch other end respectively with 8 pins that connect the ground connection of 74LS161 counter after the coil of KM relay is connected; Positive source is connected with 16 pins, 10 pins, 7 pins of 74LS161 counter; Power cathode is connected with 8 pins of 74LS161 counter; The pulse signal input interface that the normally-closed contact of BV relay inserts counter is specially: normally-closed contact one end of BV relay connects 2 pins of 74LS161 counter, and the normally-closed contact other end of BV relay connects 8 pins of 74LS161 counter.
Solar components is connected to form by n piece battery, wherein n >=4; (1) positive pole of the 1st of solar components the battery is drawn as A+ and is held; The negative pole of the n/2 integer piece battery of solar components is drawn as A-and is held; The positive pole of the n/2+1 integer piece battery of solar components is drawn the end as B+, and the electrode of the n piece battery of solar components is drawn as B-and held.
When the utility model uses; The A+ termination that solar components is drawn is gone into the A+ input of module; The A-termination that solar components is drawn is gone into the A-input of module, and the B+ termination that solar components is drawn is gone into the B+ input of module, and the B-termination that solar components is drawn is gone into the B-input of module.
During operate as normal, the A-of solar components end is connected with the B+ terminal shortcircuit, and the A+ end is communicated with the OUT+ output; B-end is communicated with the OUT-output, and the battery of solar components is from just the order to negative is identical with originally, that is: 1;, n/2, n/2+1;, n, integral body was negative voltage over the ground after the decay of solar components connection automatic sun ability component power prevented and treated module.
When the Q1 switch is pressed, insert counter behind the voltage process BV relay that utilizes solar components A+ end and A-to hold, voltage signal is arranged daytime, evening, the no-voltage signal was imported as the pulse signal of counter; A whole day is an one-period, two cycles promptly after 2 days counter export high level by Q1, make the coil electricity of KM contactor, then the normally opened contact of KM contactor is closed; Normally-closed contact breaks off, and this moment, the A+ end was connected with the B-terminal shortcircuit, and the A-end is communicated with the OUT-output, and the B+ end is communicated with the OUT+ output; Battery from just extremely negative order is in the solar components: n/2+1 ..., n; 1 ..., n/2; Integral body was positive voltage over the ground after the decay of solar components connection automatic sun ability component power prevented and treated module, realized the recovery of solar components power attenuation through changing the solar components voltage to earth, and is simply effective.When in like manner the Q2 switch is pressed, when the Q3 switch is pressed, when the Q4 switch is pressed respectively performance period be the conversion of 4 days, 8 days, 16 days solar components voltage to earth.
With above-mentioned desirable embodiment according to the utility model 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 utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (1)
1. an automatic sun can the component power decay be prevented and treated module; It is characterized in that: the power supply that have four inputs, four switches, two outputs, KM relay, BV relay, counter, is connected with counter; Described four inputs are respectively A+ input, A-input, B+ input, B-input; Described four switches are respectively Q1 switch, Q2 switch, Q3 switch, Q4 switch, and described two lead-out terminals are respectively OUT+ output, OUT-output;
The normally-closed contact of described KM relay is serially connected between A-input and the B+ input; The normally opened contact of described KM relay is serially connected between A+ input and the B-input; Simultaneously, the normally-closed contact of described KM relay is serially connected between A+ input and the OUT+ output, and the normally opened contact of described KM relay is serially connected between B+ input and the OUT+ output; Simultaneously; The normally-closed contact of described KM relay is serially connected between B-input and the OUT-output, and the normally opened contact of described KM relay is serially connected between A-input and the OUT-output, and the coil tandem of described BV relay is between A+ input and A-input;
Q1 switch, Q2 switch, Q3 switch, Q4 switch one end connect with the level output interface in corresponding cycle of counter respectively; Ground connection after Q1 switch, Q2 switch, Q3 switch, the Q4 switch other end are connected with the coil of KM relay respectively, the normally-closed contact of BV relay inserts the pulse signal input interface of counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205739952U CN202405289U (en) | 2011-12-31 | 2011-12-31 | Power attenuation prevention module of automatic solar assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205739952U CN202405289U (en) | 2011-12-31 | 2011-12-31 | Power attenuation prevention module of automatic solar assembly |
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| Publication Number | Publication Date |
|---|---|
| CN202405289U true CN202405289U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205739952U Expired - Lifetime CN202405289U (en) | 2011-12-31 | 2011-12-31 | Power attenuation prevention module of automatic solar assembly |
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| Country | Link |
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| CN (1) | CN202405289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137730A (en) * | 2013-02-01 | 2013-06-05 | 常州亿晶光电科技有限公司 | Method and structure for avoiding or reducing crystalline silicon photovoltaic assembly potential induction damping |
-
2011
- 2011-12-31 CN CN2011205739952U patent/CN202405289U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137730A (en) * | 2013-02-01 | 2013-06-05 | 常州亿晶光电科技有限公司 | Method and structure for avoiding or reducing crystalline silicon photovoltaic assembly potential induction damping |
| CN103137730B (en) * | 2013-02-01 | 2015-05-20 | 常州亿晶光电科技有限公司 | Method and structure for avoiding or reducing crystalline silicon photovoltaic assembly potential induction damping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213031, No. 2, Tianhe Road, Xinbei Industrial Park, Jiangsu, Changzhou Patentee after: trina solar Ltd. Address before: 213031, No. 2, Tianhe Road, Xinbei Industrial Park, Jiangsu, Changzhou Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. Address after: 213031, No. 2, Tianhe Road, Xinbei Industrial Park, Jiangsu, Changzhou Patentee after: TRINASOLAR Co.,Ltd. Address before: 213031, No. 2, Tianhe Road, Xinbei Industrial Park, Jiangsu, Changzhou Patentee before: trina solar Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |