CN102688873A - Method for removing dust from solar panel - Google Patents
Method for removing dust from solar panel Download PDFInfo
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- CN102688873A CN102688873A CN2012101428703A CN201210142870A CN102688873A CN 102688873 A CN102688873 A CN 102688873A CN 2012101428703 A CN2012101428703 A CN 2012101428703A CN 201210142870 A CN201210142870 A CN 201210142870A CN 102688873 A CN102688873 A CN 102688873A
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- solar panel
- vibration
- dust
- piezoelectric element
- dust collection
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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 a method for removing dust from the surface of a solar panel, comprising impelling standing-wave bending vibration in the solar panel by using a piezoelectric element or a sandwich ultrasonic transducer, removing dust on a photosensitive surface of the solar panel to positions of a vibration pitch line and a vibration pitch circle by using the Chladni's effect, and/or removing dust on the photosensitive surface of the solar panel to positions of a vibration reverse pitch line and a vibration reverse pitch circle by using the Chladni's effect, and/or enabling the dust on the oblique surface of the solar panel to fall down by using an ultrasonic antifriction effect and the gravity in order to reduce negative effects caused by the surface dust on power supply capacity of the solar panel. Automatic dedusting of the solar panel can be realized in use by adopting the method of the invention, thus improving the power supply capacity and reducing the maintenance cost.
Description
Technical field
The present invention relates to a kind of solar panel dust collection method.
Background technology
Solar panel in use for some time, dust can accumulate on its photosurface, reduces the power supply capacity of cell panel.Lack in the place and space of rainwater at some, this problem is particularly serious.Solar power plant in the desert has a large amount of cell panels usually, and the workload of artificial dedusting is big, cost is high; The domestic solar cell panel is arranged on the roof usually, and artificial dedusting is carried out in inconvenience; The dedusting of aircraft solar panel in flight course also is a technical problem that is not solved as yet.
Summary of the invention
The present invention is directed to the prior art deficiency, a kind of method of the photosurface of solar panel being carried out dedusting is provided.
This method is based on gramme rad Buddhist nun effect (Chladni ' s effect), and contrary gramme rad Buddhist nun effect and these three physical principles of vibration antifriction effect utilize the standing wave flexural vibrations of solar panel to carry out dedusting.
The present invention realizes through following technical scheme:
A kind of solar panel dust collection method, the back side central authorities that the stationary wave vibration exciting bank is arranged on the solar panel cell panel are used to encourage the standing wave flexural vibrations of solar panel or/and other positions.
Said stationary wave vibration exciting bank is piezoelectric element and/or sandwich acoustic transducer.
Round, ring-like, the square or rectangle of being shaped as of said piezoelectric element, the operation mode of piezoelectric element are radial expansion mode, length or width flexible mode, thickness vibration mode or thickness shear mode.
Said solar panel is square, rectangle or circle, and solar cell laterally arranges or is obliquely installed.
When solar panel was done the standing wave flexural vibrations, because gramme rad Buddhist nun effect, the dust on the photosurface can be to moving towards vibration nodel line and/or pitch circle (vibration displacement is zero position), and rest on these nodel lines and/or the pitch circle.Through this method, can the dust on the photosurface be focused on vibration nodel line and/or the pitch circle, the minimizing dust blocks photosurface, improves the power supply capacity of solar panel.Because gramme rad Buddhist nun effect can both take place in air and vacuum, promptly can be used for the solar panel dedusting under the home based on the dust collection method of gramme rad Buddhist nun effect, also can be used for the solar panel dedusting of spacecraft.
When solar panel was done the standing wave flexural vibrations, because contrary gramme rad Buddhist nun effect, the dust on the photosurface can be to mobile towards anti-nodel line of vibration and/or anti-pitch circle (the vibration displacement amplitude be maximum position), and rest on these positions.Through this method, can the dust on the photosurface be focused on anti-nodel line of vibration and/or the anti-pitch circle, the minimizing dust blocks photosurface, improves the power supply capacity of solar panel.
When solar panel was done the standing wave flexural vibrations, because vibration antifriction effect diminishes in the frictional force between dust and the photosurface on the solar panel photosurface, dust can be because the inclination of cell panel and the influence of gravity fall from the cell panel surface.
The vibration test of solar panel shows: the minimum vibration velocity that can bear 30cm/s (zero-peak value) of business-like solar panel; And dust removing effects of the present invention just can occur when the vibration velocity of 10 cm/s (zero-peak value), thereby dust collection method of the present invention is feasible.
Description of drawings
Fig. 1 is the front elevational schematic of solar panel dust collection method embodiment 1 of the present invention;
Fig. 2 is the schematic side view of solar panel dust collection method embodiment 1 of the present invention;
Fig. 3 is the schematic side view of solar panel dust collection method embodiment 2 of the present invention.
Among the figure: 1,5: solar panel, 2: vibration nodel line, 3,4: piezoelectric element, 6,8: dust, 7: the dust moving direction.
The specific embodiment
In gramme rad Buddhist nun effect, be positioned at the lip-deep molecule of flexural vibrations and move, and accumulate in these vibration nodal points, nodel line and pitch circle place to vibration nodal point, nodel line and pitch circle.Gramme rad Buddhist nun effect is caused by the impact between flexural vibrations face and the molecule.In contrary gramme rad Buddhist nun effect, be positioned at the lip-deep molecule of flexural vibrations and move, and accumulate in these vibratory anti-nodal point, anti-nodel line and anti-pitch circle place to vibratory anti-nodal point, anti-nodel line and anti-pitch circle.Contrary gramme rad Buddhist nun effect is to be caused by the micro swirl on the vibration plane.In vibration antifriction effect, diminish at molecule on the vibration plane and the frictional force between the vibration plane.It is generally acknowledged that vibration antifriction effect is to be separated by the moment between molecule and the vibration plane to cause.Gramme rad Buddhist nun effect can be used for the solar panel dedusting in ground environment and the vacuum environment with vibration antifriction effect; Owing to need micro swirl, contrary gramme rad Buddhist nun effect can only be used for the solar panel dedusting of non-vacuum environment.
Above-mentioned is theoretical principle of the present invention, combines specific embodiment that technical scheme of the present invention is further described at present.
The structure of embodiment one such as Fig. 1, shown in Figure 2.
Diameter is the back central authorities that the piezoelectric element of 20mm, thick 5mm is bonded in the solar panel that is of a size of 100mm * 100mm * 1.5mm.Piezoelectric element is polarized at thickness direction, and the electromechanical coupling factor Kp of its radial vibration is 0.59, and mechanical quality factor Qm is 1500, and Curie-point temperature is 350 ° of C, and dielectric loss coefficient is 0.3%, and radially Young's modulus is 7200 N/m2.Solar panel horizontal positioned, gross mass are that the dry soil crushed material of 1g is sprinkling upon on the photosurface of solar panel in order to the simulation dust equably.When frequency is that 110kHz, amplitude are that the alternating voltage of 300V0-p is when being applied on this piezoelectric element; Piezoelectric element is done radial vibration; In solar panel, can motivate bending ultrasonic vibration as shown in Figure 1 is stationary wave vibration, and this stationary wave vibration can move and gather vibration nodel line place to the dust on the photosurface in 2 minutes.Under identical solar radiation intensity, this vibration dust collection method can make the output electric energy of solar panel increase by 6%.
The structure of embodiment two is as shown in Figure 3.
Diameter is the central authorities that the piezoelectric element of 20mm, thick 5mm is bonded in the solar panel back upper end that is of a size of 100mm * 100mm * 1.5mm.The solar panel angle of inclination is 45 °.Piezoelectric element is polarized at thickness direction, and the electromechanical coupling factor Kp of its radial vibration is 0.59, and mechanical quality factor Qm is 1500, and Curie-point temperature is 350 ° of C, and dielectric loss coefficient is 0.3%, and radially Young's modulus is 7200 N/m2.Gross mass is that the dry soil crushed material of 1g is sprinkling upon on the photosurface of solar panel in order to the simulation dust equably.When frequency is that 110kHz, amplitude are that the alternating voltage of 300V0-p is when being applied on this piezoelectric element; Piezoelectric element is done radial vibration; In solar panel, can motivate stationary wave vibration; Utilize the stationary wave vibration of solar panel, reduce the frictional force between solar panel surface dirt and the photographic plate, and utilize the inclination and the gravity of solar panel; Make these surface dirt move down and fall, to reduce the generating efficiency of blocking, improve solar panel of dust to photosensitive surface from the cell panel surface along solar panel.This ultrasonic standing wave vibrational energy moved to the solar panel lower end to the dust on the photosurface and makes it to fall in 1 minute, under identical solar radiation intensity, this vibration dust collection method can make the output electric energy of solar panel increase by 9%.
Piezoelectric element is bonded in the back side central authorities of cell panel or/and other positions; The shape of piezoelectric element can be round, ring-like, square or rectangle, and the operation mode of piezoelectric element can be radial expansion mode, length or width flexible mode, thickness vibration mode and thickness shear mode.
Also can use sandwich acoustic transducer excitation stationary wave vibration, reach the dedusting purpose through gramme rad Buddhist nun effect, contrary gramme rad Buddhist nun effect and/or vibration antifriction effect, the sandwich acoustic transducer is bonded in the back side central authorities of cell panel or/and other positions.
Also can with a plurality of piezoelectric elements and/or sandwich ultrasonic transducer be bonded in cell panel the back side, be used to encourage the stationary wave vibration of solar panel.
The stationary wave vibration exciting bank that the present invention adopts is not limited only to piezoelectric element described in the invention and sandwich acoustic transducer, can use as long as can realize the device that produces stationary wave vibration.
Claims (4)
1. solar panel dust collection method is characterized in that: the back side central authorities that the stationary wave vibration exciting bank is arranged on the solar panel cell panel are used to encourage the standing wave flexural vibrations of solar panel or/and other positions.
2. solar panel dust collection method according to claim 1, it is characterized in that: said stationary wave vibration exciting bank is piezoelectric element and/or sandwich acoustic transducer.
3. like the said solar panel dust collection method of claim 2; It is characterized in that: round, ring-like, the square or rectangle of being shaped as of said piezoelectric element, the operation mode of piezoelectric element are radial expansion mode, length or width flexible mode, thickness vibration mode or thickness shear mode.
4. like the said solar panel dust collection method of claim 3, it is characterized in that: said solar panel is square, rectangle or circle, and solar cell laterally arranges or is obliquely installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101428703A CN102688873A (en) | 2012-05-10 | 2012-05-10 | Method for removing dust from solar panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101428703A CN102688873A (en) | 2012-05-10 | 2012-05-10 | Method for removing dust from solar panel |
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| CN102688873A true CN102688873A (en) | 2012-09-26 |
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| CN2012101428703A Pending CN102688873A (en) | 2012-05-10 | 2012-05-10 | Method for removing dust from solar panel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014519A (en) * | 2014-05-07 | 2014-09-03 | 苏州昊枫环保科技有限公司 | Solar panel dust removal system with assistant vibration dust removal function |
| CN104104324A (en) * | 2014-07-28 | 2014-10-15 | 东南大学 | Solar power generation device capable of automatically removing snow and dust |
| US20150311859A1 (en) * | 2014-04-28 | 2015-10-29 | King Fahd University Of Petroleum And Minerals | Smart dust-cleaner and cooler for solar pv panels |
| CN105381993A (en) * | 2015-12-08 | 2016-03-09 | 河海大学常州校区 | Solar photovoltaic board cleaning device based on acoustic surface waves and high-speed airflow and solar photovoltaic board cleaning method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055372A (en) * | 2009-10-26 | 2011-05-11 | 佳能株式会社 | Vibrating device, and drive device, dust removing device, and optical device which include the vibrating device |
| CN102107199A (en) * | 2009-11-26 | 2011-06-29 | 佳能株式会社 | Dust removing device and dust removing method |
| CN201894894U (en) * | 2010-11-16 | 2011-07-13 | 国电南京自动化股份有限公司 | Automatic dust removing system for accumulated dust on air filter screen |
| CN102240189A (en) * | 2011-05-20 | 2011-11-16 | 南京航空航天大学 | Standing wave type ultrasonic dust collector and dustcollection method thereof |
-
2012
- 2012-05-10 CN CN2012101428703A patent/CN102688873A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055372A (en) * | 2009-10-26 | 2011-05-11 | 佳能株式会社 | Vibrating device, and drive device, dust removing device, and optical device which include the vibrating device |
| CN102107199A (en) * | 2009-11-26 | 2011-06-29 | 佳能株式会社 | Dust removing device and dust removing method |
| CN201894894U (en) * | 2010-11-16 | 2011-07-13 | 国电南京自动化股份有限公司 | Automatic dust removing system for accumulated dust on air filter screen |
| CN102240189A (en) * | 2011-05-20 | 2011-11-16 | 南京航空航天大学 | Standing wave type ultrasonic dust collector and dustcollection method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王继超等: "Chladni图案的MATLAB模拟", 《实验科学与技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150311859A1 (en) * | 2014-04-28 | 2015-10-29 | King Fahd University Of Petroleum And Minerals | Smart dust-cleaner and cooler for solar pv panels |
| US9899957B2 (en) * | 2014-04-28 | 2018-02-20 | King Fahd University Of Petroleum And Minerals | Smart dust-cleaner and cooler for solar PV panels |
| CN104014519A (en) * | 2014-05-07 | 2014-09-03 | 苏州昊枫环保科技有限公司 | Solar panel dust removal system with assistant vibration dust removal function |
| CN104104324A (en) * | 2014-07-28 | 2014-10-15 | 东南大学 | Solar power generation device capable of automatically removing snow and dust |
| CN105381993A (en) * | 2015-12-08 | 2016-03-09 | 河海大学常州校区 | Solar photovoltaic board cleaning device based on acoustic surface waves and high-speed airflow and solar photovoltaic board cleaning method |
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Application publication date: 20120926 |