CN111795672A - Sun tracking sensing method - Google Patents
Sun tracking sensing method Download PDFInfo
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- CN111795672A CN111795672A CN202010654859.XA CN202010654859A CN111795672A CN 111795672 A CN111795672 A CN 111795672A CN 202010654859 A CN202010654859 A CN 202010654859A CN 111795672 A CN111795672 A CN 111795672A
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- sun
- well
- groove
- upper silicon
- photocells
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- 238000000034 method Methods 0.000 title claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 89
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 89
- 239000010703 silicon Substances 0.000 claims abstract description 89
- 238000005286 illumination Methods 0.000 claims description 4
- 230000000994 depressogenic effect Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000010248 power generation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
- H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
-
- 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
Abstract
The invention relates to the technical field of sun tracking, and discloses a sun tracking sensing method.A shading block with shading on the top and the periphery is provided, the top of the shading block sinks to form a groove well with an opening at the upper end, a plurality of upper silicon photocells which are horizontally arranged are arranged at the bottom of the groove well, the groove well is provided with a groove side wall which is longitudinally arranged and is transparent, and the output analog voltage of the upper silicon photocells is in direct proportion to the area of an anode section of the upper silicon photocells; when the sun inclines relative to the trough well, because the areas of the male section and the female section of each upper silicon photovoltaic cell are different, the controller can calculate and obtain the inclination angle of the sun relative to the trough well according to the difference of the analog voltage values of the upper silicon photovoltaic cells, the calculation is accurate, and accurate data is provided for the adjustment of the photovoltaic panel.
Description
Technical Field
The invention relates to the technical field of sun tracking, in particular to a sun tracking sensing method.
Background
In the photovoltaic power generation device, when the photovoltaic panel is perpendicular to sunlight, the effective area of the photovoltaic panel for receiving the sunlight is the largest, and the power generation efficiency is the highest.
In the prior art, because the sun is always in motion, the angle between the sunlight and the photovoltaic panel can change constantly, the angle of the sunlight is usually judged manually, and then the orientation of the photovoltaic panel is adjusted, so that a large error exists, and the efficiency is low.
Disclosure of Invention
The invention aims to provide a sun tracking sensing method, and aims to solve the problem that in the prior art, the sunlight angle is judged by people to have large errors.
The invention is realized in such a way, and provides a shading block with shading top and periphery, wherein the top of the shading block sinks to form a groove well with an opening at the upper end, the bottom of the groove well is provided with a plurality of upper silicon photocells which are horizontally arranged, the groove well is provided with a groove side wall which is longitudinally arranged and is transparent, the upper silicon photocells are uniformly arranged along the circumferential direction of the groove well at intervals, and the upper silicon photocells are respectively and electrically connected with a controller; the upper silicon photocell is provided with a positive section irradiated by sunlight and a negative section not irradiated by the sun; the output analog voltage of the upper silicon photocell is in direct proportion to the area of the anode section of the upper silicon photocell; when the sun is vertical to the bottom of the groove well, the analog voltage values output by the upper silicon photocells are consistent, and when the sun and the groove well are inclined, the controller calculates and obtains the inclination angle of the sun relative to the groove well according to the analog voltage values output by the upper silicon photocells.
Furthermore, the area of the upper silicon photocell of the backlight along the oblique irradiation direction of the sun is S1 ═ b-
The area of the upper silicon photocell facing the light is
b is the width of the upper silicon photocell;
l is the length of the positive section of the upper silicon photocell when the sun vertically irradiates the bottom of the groove well;
h is the height of the groove side wall of the groove well;
Further, a longitudinal cylinder which is laterally light-proof and provided with an inner cavity is provided, the top of the longitudinal cylinder is provided with a top opening, the top opening is communicated with the inner cavity of the longitudinal cylinder, and the light shading block is embedded into the top opening of the longitudinal cylinder.
Further, the upper silicon photocell is provided with an inner groove section extending into the groove well and an outer groove section extending out of the groove well and arranged in the shading block.
Further, the top of the shading block sinks to form a sinking groove, the sinking groove is formed in the periphery of the groove well, a light-transmitting plate is filled in the sinking groove, and the light-transmitting plate covers an upper end opening of the groove well.
Further, a light hole is formed in the center of the groove well and penetrates through the bottom of the light shielding block; the bottom of the inner cavity of the longitudinal cylinder is provided with a plurality of lower silicon photocells which are horizontally arranged, the lower silicon photocells are evenly arranged at intervals along the circumferential direction of the central position of the inner cavity, and the lower silicon photocells are respectively and electrically connected with the controller; when the sun is vertical to the bottom of the groove well, sunlight irradiates the lower silicon photocells.
Furthermore, an upper circuit board is horizontally arranged at the bottom of the groove well, the upper circuit board is electrically connected with the controller, the upper silicon photocells are connected to the upper circuit board, a through hole is formed in the center of the upper circuit board, and the through hole is located right below the light hole and is consistent in shape.
Furthermore, the bottom of the longitudinal cylinder is provided with a bottom opening, the bottom opening of the longitudinal cylinder is embedded with a base, and the lower silicon photocell is arranged on the base.
Furthermore, the lower silicon photocell is provided with a through hole inner section extending to the position right below the through hole and a through hole outer section extending to the position right below the through hole and arranged on the outer side.
Furthermore, a lower circuit board is arranged horizontally on the base, the lower circuit board is electrically connected with the controller, and the lower silicon photocells are connected to the lower circuit board.
Compared with the prior art, according to the sun tracking sensing method provided by the invention, when the sun is vertical to the bottom of the trough well, the analog voltage values output by the upper silicon photocells are consistent, and when the sun inclines relative to the trough well, due to the fact that the areas of the positive section and the negative section of each upper silicon photocell are different, the controller can calculate and obtain the inclination angle of the sun relative to the trough well according to the difference of the analog voltage values of the upper silicon photocells, calculation is accurate, and accurate data is provided for adjustment of the photovoltaic panel.
Drawings
FIG. 1 is a schematic perspective view of a sun-tracking sensor provided by the present invention;
fig. 2 is a cut-away schematic view of a sun-tracking sensor provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-2, a preferred embodiment of the present invention is shown.
The sun tracking sensing method provided by the embodiment can be applied to photovoltaic power generation and sunlight introducing equipment and is used for judging the irradiation inclination angle of the sun.
The sun tracking sensing method provides a shading block 101 which is shading the top and the periphery, the top of the shading block 101 sinks to form a groove well 102 with an opening at the upper end, namely, sunlight can only enter the inside of the groove well 102 through the opening at the upper end of the groove well 102.
The bottom of the trough well 102 is provided with a plurality of upper silicon photocells 109 arranged horizontally, the trough well 102 is provided with a trough side wall which is arranged longitudinally and is transparent, the sunlight entering the inside of the trough well 102 and irradiating on the trough side wall can pass through the trough side wall.
The upper silicon photocells 109 are uniformly arranged along the circumferential direction of the groove well 102 at intervals, and the upper silicon photocells 109 are respectively electrically connected with the controller; the upper silicon photocell 109 has a male section irradiated by sunlight and a female section not irradiated by the sun; the analog voltage output by the upper silicon photocell 109 is proportional to the area of the anode section thereof; when the sun is vertical to the bottom of the trough well 102, the analog voltage values output by the upper silicon photocells 109 are consistent, and when the sun is inclined to the trough well 102, the controller calculates and obtains the inclination angle of the sun relative to the trough well 102 according to the analog voltage values output by the upper silicon photocells 109.
According to the sun tracking sensing method provided by the invention, when the sun is vertical to the bottom of the trench 102, the analog voltage values output by the upper silicon photocells 109 are consistent, and when the sun inclines relative to the trench 102, due to the fact that the areas of the male section and the female section of each upper silicon photocell 109 are different, the controller can calculate and obtain the inclination angle of the sun relative to the trench 102 according to the difference of the analog voltage values of the upper silicon photocells 109, so that the calculation is accurate, and accurate data is provided for adjustment of the photovoltaic panel.
The area of the backlit upper silicon photocell 109 along the oblique sun illumination direction is
The area of the upper silicon photocell 109 facing the light is
b is the width of the upper silicon photocell 109;
l is the length of the positive section of the upper silicon photocell 109 when the sun vertically irradiates the bottom of the trench well 102;
h is the height of the slot sidewall of the slot well 102;
When the sun irradiates at 90 degrees, namely, the sun is perpendicular to the bottom of the grooved well 102, the sunlight is not blocked by the top of the shading block 101, the sections of the upper silicon photocells 109 are the same, the illumination intensity is the same, and the analog voltage value output by the upper silicon photocells 109 is the same. When sunlight is inclined with respect to the trough well 102, the sun section of the backlit upper silicon photocell 109 decreases due to shading by the top of the shading block 101, and increases toward the sun section of the light upper silicon photocell 109 due to the trough side walls being light transmissive.
The longitudinal cylinder 100 is provided with a lateral light-proof inner cavity, the top of the longitudinal cylinder 100 is provided with a top opening, the top opening is communicated with the inner cavity of the longitudinal cylinder 100, and the top opening of the longitudinal cylinder 100 is embedded with the shading block 101, so that the installation and the arrangement of the shading block 101 are facilitated.
The upper silicon photocell 109 has an in-slot section that extends into the slot well 102 and an out-slot section that extends out of the slot well 102 and is disposed within the light shielding block 101. The part of the upper silicon photocell 109 is hidden inside the shading block 101, so that when the irradiation angle of the sun changes, the sun section of the upper silicon photocell 109 facing the light part changes, and calculation is facilitated.
The top of the light shielding block 101 is sunk to form a sunk groove formed at the periphery of the groove well 102, and the sunk groove is filled with a light-transmitting plate 111, and the light-transmitting plate 111 covers the upper end opening of the groove well 102. The upper opening of the trench well 102 can be covered and protected by the transparent plate 111, and the sunlight can not enter the trench well 102.
A light hole is formed in the center of the groove well 102 and penetrates through the bottom of the light shielding block 101; the bottom of the inner cavity of the longitudinal cylinder 100 is provided with a plurality of lower silicon photovoltaic cells 105 which are horizontally arranged, the lower silicon photovoltaic cells 105 are uniformly arranged at intervals along the circumferential direction of the central position of the inner cavity, and the lower silicon photovoltaic cells 105 are respectively and electrically connected with a controller; when the sun is perpendicular to the bottom of the trench well 102, sunlight is irradiated to the plurality of lower silicon photovoltaic cells 105.
Since the upper silicon photocell 109 of the shading block 101 arranged at the upper part of the longitudinal cylinder 100 is easily influenced by some diffuse reflection and illumination from the outside, the lower silicon photocell 105 is arranged at the lower part of the longitudinal cylinder 100, and the working principle of the lower silicon photocell 105 is equal to that of the upper silicon photocell 109, so that the lower silicon photocell 105 is hardly influenced, and the controller can synthesize the analog voltage values output by the upper silicon photocell 109 and the lower silicon photocell 105 to calculate, thereby obtaining a more accurate sun relative angle.
The bottom of the groove well 102 is provided with an upper circuit board 110 which is horizontally arranged, the upper circuit board 110 is electrically connected with the controller, the upper silicon photocells 109 are connected on the upper circuit board 110, a through hole is arranged at the center of the upper circuit board 110, and the through hole is positioned right below the light hole and has a consistent shape.
Thus, the installation of the upper circuit board 110 and the upper silicon photocell 109 is facilitated, and the irradiation of sunlight is not affected.
The bottom of the longitudinal cylinder 100 has a bottom opening, the bottom opening of the longitudinal cylinder 100 is embedded with a base 105, and the lower silicon photocell 105 is arranged on the base 105.
The lower silicon photocell 105 has a through hole inner section extending to the right below the through hole and a through hole outer section extending to the right outside below the through hole. The part of the lower silicon photocell 105 is hidden outside the through hole, so that when the irradiation angle of the sun changes, the positive section of the lower silicon photocell 105 facing the light changes, and calculation is facilitated.
The base 105 is provided with a lower circuit board 107 arranged horizontally, the lower circuit board 107 is electrically connected with the controller, and the plurality of lower silicon photocells 105 are connected on the lower circuit board 107.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The sun tracking sensing method is characterized in that a shading block with a top and a periphery shading is provided, the top of the shading block sinks to form a groove well with an opening at the upper end, a plurality of upper silicon photocells horizontally arranged are arranged at the bottom of the groove well, the groove well is provided with a groove side wall which is longitudinally arranged and light-transmitting, the upper silicon photocells are evenly arranged along the circumferential direction of the groove well at intervals, and the upper silicon photocells are respectively and electrically connected with a controller; the upper silicon photocell is provided with a positive section irradiated by sunlight and a negative section not irradiated by the sun; the output analog voltage of the upper silicon photocell is in direct proportion to the area of the anode section of the upper silicon photocell; when the sun is vertical to the bottom of the groove well, the analog voltage values output by the upper silicon photocells are consistent, and when the sun and the groove well are inclined, the controller calculates and obtains the inclination angle of the sun relative to the groove well according to the analog voltage values output by the upper silicon photocells.
2. The sun tracking sensing method of claim 1, wherein along the oblique sun illumination direction, the area of said upper silicon photocell being backlit is
The area of the upper silicon photocell facing the light is
b is the width of the upper silicon photocell;
l is the length of the positive section of the upper silicon photocell when the sun vertically irradiates the bottom of the groove well;
h is the height of the groove side wall of the groove well;
3. The sun tracking sensing method according to claim 1 or 2, wherein a longitudinal cylinder which is laterally light-tight and has an inner cavity is provided, the top of the longitudinal cylinder has a top opening which is communicated with the inner cavity of the longitudinal cylinder, and the light shielding block is embedded in the top opening of the longitudinal cylinder.
4. A method of sun-tracking sensing according to claim 1 or claim 2, wherein the upper silicon photo-cell has an in-well section extending into the well and an out-of-well section extending out of the well and within the light-blocking block.
5. The sun-tracking sensing method according to claim 1 or 2, wherein the top of the light shielding block is depressed to form a depressed groove formed at the outer periphery of the well, and the depressed groove is filled with a light-transmitting plate covering the upper end opening of the well.
6. The sun tracking sensing method according to claim 3, wherein a light transmission hole is formed at a central position of the groove well, and the light transmission hole penetrates through the bottom of the light shielding block; the bottom of the inner cavity of the longitudinal cylinder is provided with a plurality of lower silicon photocells which are horizontally arranged, the lower silicon photocells are evenly arranged at intervals along the circumferential direction of the central position of the inner cavity, and the lower silicon photocells are respectively and electrically connected with the controller; when the sun is vertical to the bottom of the groove well, sunlight irradiates the lower silicon photocells.
7. The sun-tracking sensing method according to claim 6, wherein a horizontally arranged upper circuit board is disposed at the bottom of the trough well, the upper circuit board is electrically connected to the controller, a plurality of upper silicon photocells are connected to the upper circuit board, and a through hole is disposed at a central position of the upper circuit board, and the through hole is located right below the light-transmitting hole and has a uniform shape.
8. The sun tracking sensing method of claim 7, wherein the bottom of the longitudinal cylinder has a bottom opening, the bottom opening of the longitudinal cylinder having a base embedded therein, the lower silicon photovoltaic cell being disposed on the base.
9. The sun tracking sensing method of claim 8, wherein the lower silicon photocell has an inner section of the through hole extending directly below the through hole and an outer section of the through hole extending outside directly below the through hole.
10. The sun tracking sensing method according to claim 9, wherein a horizontally disposed lower circuit board is disposed on the base, the lower circuit board is electrically connected to the controller, and the plurality of lower silicon photovoltaic cells are connected to the lower circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654859.XA CN111795672A (en) | 2020-07-09 | 2020-07-09 | Sun tracking sensing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654859.XA CN111795672A (en) | 2020-07-09 | 2020-07-09 | Sun tracking sensing method |
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| CN111795672A true CN111795672A (en) | 2020-10-20 |
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| CN202010654859.XA Pending CN111795672A (en) | 2020-07-09 | 2020-07-09 | Sun tracking sensing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101291124A (en) * | 2007-11-16 | 2008-10-22 | 中国科学院电工研究所 | Photovoltaic sensor tracing angle of light |
| CN101364113A (en) * | 2008-08-25 | 2009-02-11 | 广州中国科学院工业技术研究院 | Controller for tracking position of sun and control method for the controller |
| WO2010145059A1 (en) * | 2009-06-19 | 2010-12-23 | 科强能源系统工程股份有限公司 | Sun-tracking photovoltaic detector |
| CN101997449A (en) * | 2009-08-13 | 2011-03-30 | 无锡昊阳新能源科技有限公司 | Sun-tracking detector having wide-angle capturing and precise tracking functions |
| CN102607507A (en) * | 2012-03-08 | 2012-07-25 | 扬州贝尔斯通科技有限公司 | Solar ray angle measuring device of photovoltaic tracking system and measuring method of solar ray angle measuring device |
| CN203177844U (en) * | 2013-04-11 | 2013-09-04 | 南京理工大学 | Sun tracking positioning detection device |
| CN104503475A (en) * | 2014-11-21 | 2015-04-08 | 广西大学 | Sensor applicable to automatic solar energy tracking device |
| CN204788345U (en) * | 2015-06-17 | 2015-11-18 | 赵连新 | Wireless digital sun is trailed position and is detected head |
| CN205540301U (en) * | 2016-04-11 | 2016-08-31 | 宋林军 | Solar energy automatic tracking sensor and solar power system |
| CN206095202U (en) * | 2016-11-01 | 2017-04-12 | 南京卓砾智测控技术有限公司 | Solar position sensor of high accuracy on a large scale |
| CN106802142A (en) * | 2016-12-31 | 2017-06-06 | 西北机电工程研究所 | The method for measuring position of sun |
-
2020
- 2020-07-09 CN CN202010654859.XA patent/CN111795672A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101291124A (en) * | 2007-11-16 | 2008-10-22 | 中国科学院电工研究所 | Photovoltaic sensor tracing angle of light |
| CN101364113A (en) * | 2008-08-25 | 2009-02-11 | 广州中国科学院工业技术研究院 | Controller for tracking position of sun and control method for the controller |
| WO2010145059A1 (en) * | 2009-06-19 | 2010-12-23 | 科强能源系统工程股份有限公司 | Sun-tracking photovoltaic detector |
| CN101997449A (en) * | 2009-08-13 | 2011-03-30 | 无锡昊阳新能源科技有限公司 | Sun-tracking detector having wide-angle capturing and precise tracking functions |
| CN102607507A (en) * | 2012-03-08 | 2012-07-25 | 扬州贝尔斯通科技有限公司 | Solar ray angle measuring device of photovoltaic tracking system and measuring method of solar ray angle measuring device |
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| CN104503475A (en) * | 2014-11-21 | 2015-04-08 | 广西大学 | Sensor applicable to automatic solar energy tracking device |
| CN204788345U (en) * | 2015-06-17 | 2015-11-18 | 赵连新 | Wireless digital sun is trailed position and is detected head |
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Application publication date: 20201020 |
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