CN102541081B - Solar tracking photoelectric sensor and photovoltaic power generation system - Google Patents
Solar tracking photoelectric sensor and photovoltaic power generation system Download PDFInfo
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Abstract
The invention provides a solar tracking photoelectric sensor, which comprises a casing and a controller. A sensing circuit board and a reflective part are sequentially arranged in the casing along the direction of sunshine incidence, wherein the sensing circuit board is electrically connected with the controller. A transparent protective part is arranged on one side of the sensing circuit board close to sun, a front sensing element is arranged on the front surface of the sensing circuit board, a back sensing element is arranged on the back surface of the sensing circuit board, and a light leaking gap is formed between the sensing circuit board and the casing, so that oblique incidence light irradiates on the reflective part through the transparent protective part and the light leaking gap and then is reflected onto the back sensing element. The solar tracking photoelectric sensor is capable of accurately calculating the oblique incidence angle of the sun, and is simple in structure and low in cost. The invention further provides a photovoltaic power generation system.
Description
Technical field
The present invention relates to solar energy tracking photoelectric sensor and photovoltaic generating system.
Background technology
Day by day poor along with earth resources, the cost of investment of basic energy resource is climbed to a higher point day by day, and various safety and pollution hidden trouble are ubiquitous.Photovoltaic energy as a kind ofly pollution-freely taking inexhaustible safety, environmental protection new forms of energy are more and more taken seriously.
As the energy-collecting device of photovoltaic generation and the position of battery windsurfing and the sun closely related, if remain battery windsurfing energy collecting face and sunlight vertical irradiation, just can utilize more sun power in limited usable floor area, the utilization factor adopting solar tracking system to improve sun power is the scheme of its first-selection, and wherein solar energy tracking photoelectric sensor just plays very important effect.
Conventional photovoltaic electricity generation system generally comprises solar panel, machine driven system, pylon, solar energy tracking photoelectric sensor, follow-up control circuit, windproof repositioning control device etc.Wherein, solar panel is gone into battle and is shown many Battery packs.Machine driven system comprises for driving solar battery array to rotate with vertical direction, to follow the tracks of the horizontal angle driving mechanism and elevation angle driving mechanism that shine upon light in the horizontal direction respectively.Such as, Chinese patent literature CN1148867 discloses this photovoltaic generating system.Pylon is generally installed on the ground, also can be arranged on buildings, and such as Chinese patent application CN99110049.2 discloses a kind of solar module, its installation method and the solar generator with this assembly, and wherein solar cell is arranged on roof.
Research shows, the tracking that photovoltaic generating system moves to sunray and non-tracking, the utilization factor of its energy differs greatly.Chinese patent application CN200910117269.7 discloses a kind of solar energy tracking position sensor, and it is the position transducer of a kind of Application of Solar Energy field solar energy sun-following system; Its housing upper surface arranges cover plate, and enclosure interior installs little lower large taper reflection shield, installs sectored light electrical part, be close to photoelectric device lower surface mounting circuit boards, be assemblied in the lower surface of housing by bottom back cover in taper reflection shield bottom; Structure is simple, low cost, high resolving power, can follow the tracks of the sun more accurately, at utmost receives illumination and effectively improves solar energy utilization ratio, and can provide round-the-clock photosignal.But, the patent application disclose and just can produce error signal when light slants because the energy of each group of photoelectric device reception is inconsistent, but and the unexposed angle how measuring sunray incidence, accurately can not follow the tracks of the sun, keep battery windsurfing energy collecting face and sunlight vertical irradiation.
Summary of the invention
The present invention solves traditional solar energy tracking position sensor can not measure sunray incident angle thus accurately can not follow the tracks of the technical matters of the sun, a kind of solar energy tracking photoelectric sensor is provided, it can measure sunray incident angle, follow the tracks of the sun more accurately, keep battery windsurfing energy collecting face and sunlight vertical irradiation, at utmost receive illumination, effectively improve solar energy utilization ratio.
The present invention solves the problems of the technologies described above by the following technical solutions.
Solar energy tracking photoelectric sensor, comprise housing and controller, sensor circuit plate and reflecting component is provided with successively along the direction that sunlight is injected in described housing, described sensor circuit plate is electrically connected with described controller, the circumsolar side of leaning on of described sensor circuit plate is provided with transparent armor, the front of described sensor circuit plate is provided with front sensing element, the reverse side of described sensor circuit plate is provided with reverse side sensing element, light leak gap is formed between described sensor circuit plate and described housing, on the reverse side sensing element that the light of oblique incidence is reflected onto on described sensor circuit plate after described transparent armor and described light leak gap are radiated on described reflecting component.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described transparent armor is cover plate.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described reflecting component is rear reflector.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described transparent armor weakens glass away from light intensity that the one side of the sun has been sticked.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described transparent armor, described sensor circuit plate, described reflecting component all become tabular, and described transparent armor, described sensor circuit plate, described reflecting component successively parallel interval be arranged in described housing.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described front sensing element and described reverse side sensing element are photoelectric tube, photomultiplier, photoelectric cell, photoresistance or phototriode.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described front sensing element and described reverse side sensing element are photoelectric cell.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described housing is square body.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, each inwall corner of described housing is equipped with mounting blocks, and each corner of described sensor circuit plate correspondingly overlaps and is fixed on each mounting blocks.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described light leak gap is the gap formed between the inwall of described housing and described sensor circuit plate periphery.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described front sensing element is positioned at the middle part of described sensor circuit plate, and quantity is one.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described reverse side sensing element centered by the reverse side position that front sensing element is corresponding successively along perpendicular to the uniform arrangement in direction on each limit of sensor circuit plate.
As the optimal technical scheme of solar energy tracking photoelectric sensor of the present invention, described reverse side sensing element across arrangement, and be at least three along the quantity of the direction row's reverse of the cloth sensing element perpendicular to each limit of sensor circuit plate.
The invention also discloses a kind of photovoltaic generating system, it comprises solar panel, kinematic train, photoelectric sensor and pylon, described kinematic train is arranged between described pylon and described solar panel, described photoelectric sensor is electrically connected with described kinematic train, and described photoelectric sensor is above-mentioned solar energy tracking photoelectric sensor.
As the optimal technical scheme of photovoltaic generating system of the present invention, described photoelectric sensor is arranged on the surface of described solar panel, and described transparent armor, described sensor circuit plate are all parallel with the surface of described solar panel with described reflecting component.
Compared with traditional solar energy tracking position sensor, solar energy tracking photoelectric sensor of the present invention, comprise housing and controller, sensor circuit plate and reflecting component is provided with successively along the direction that sunlight is injected in described housing, described sensor circuit plate is electrically connected with described controller, the circumsolar side of leaning on of described sensor circuit plate is provided with transparent armor, the front of described sensor circuit plate is provided with front sensing element, the reverse side of described sensor circuit plate is provided with reverse side sensing element, light leak gap is formed between described sensor circuit plate and described housing, on the reverse side sensing element that the light of oblique incidence is reflected onto on described sensor circuit plate after described transparent armor and described light leak gap are radiated on described reflecting component.After sun oblique fire, when being irradiated on rear reflector by the light leak gap between sensor circuit plate and housing, reflection ray is through corresponding reflection angle, by sunshine reflected illumination to the reverse side sensing element on the bottom surface (also claiming reverse side herein) of sensor circuit plate.The sensing element that sensor circuit plate reverse side is sunlighted can induce the irradiation of light, produce corresponding signal, the induced signal of this signal and front sensing element is compared, if this two signal is identical or close, then can judge that the sun tilts to respective direction, according to being irradiated to obtain the location of reverse side sensing element, the angle of inclination of the sun can be extrapolated.Therefore, solar energy tracking photosensor structure of the present invention is simple, low cost, high resolving power, it can follow the tracks of the sun more accurately, keep battery windsurfing energy collecting face and sunlight vertical irradiation, at utmost receive illumination, effectively improve solar energy utilization ratio, and round-the-clock photosignal can be provided.
In conjunction with the drawings, read the following detailed description to specific embodiments of the invention, other advantage of the present invention, feature and aspect can be understood further.
Accompanying drawing explanation
The positive cut-away illustration of the solar energy tracking photoelectric sensor of one embodiment of the present of invention when Fig. 1 is direct sunlight;
The positive cut-away illustration of the solar energy tracking photoelectric sensor of one embodiment of the present of invention when Fig. 2 is sunlight oblique fire;
Fig. 3 is the schematic top plan view of the solar energy tracking photoelectric sensor of one embodiment of the present of invention;
Fig. 4 is the schematic diagram of the photovoltaic generating system of one embodiment of the present of invention;
Fig. 5 is another schematic diagram of the photovoltaic generating system of one embodiment of the present of invention.
Description of reference numerals
1 transparent armor; 2 light intensity weaken glass;
3 reflecting components; 4 sensor circuit plates;
5 controllers; 6 bottoms;
7 housings; 72 first mounting blocks;
74 second mounting blocks; 76 the 3rd mounting blocks;
78 the 4th mounting blocks; 800 front sensing elements;
801 first reverse side sensing elements; 802 second reverse side sensing elements;
803 the 3rd reverse side sensing elements; 804 the 4th reverse side sensing elements;
805 the 5th reverse side sensing elements; 806 the 6th reverse side sensing elements;
807 the 7th reverse side sensing elements; 808 the 8th reverse side sensing elements;
809 the 9th reverse side sensing elements; 810 the tenth reverse side sensing elements;
811 the 11 reverse side sensing elements; 812 the 12 reverse side sensing elements;
91 first light leak gaps; 92 second light leak gaps;
93 the 3rd light leak gaps; 94 the 4th light leak gaps;
100 photoelectric sensors; 200 solar panels;
300 kinematic trains; 400 pylons;
500 sun.
Embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With reference to the accompanying drawings the specific embodiment of the present invention is described in detail.Herein, same reference numerals represents same composition part.Herein, term " front " refers to towards the one side of the sun, and term " reverse side " or " bottom surface " refer to the one side of the sun dorsad.
As depicted in figs. 1 and 2, the solar energy tracking photoelectric sensor of this specific embodiment comprises housing 7, sensor circuit plate 4, reflecting component 3 and controller 5.Wherein, in described housing 7, sensor circuit plate 4 and reflecting component 3 is provided with successively along the direction that sunlight is injected.Described sensor circuit plate 4 is electrically connected with described controller 5.In a preferred embodiment of solar energy tracking photoelectric sensor of the present invention, described reflecting component 3 is rear reflector.Such as, and in a preferred embodiment of solar energy tracking photoelectric sensor of the present invention, described housing 7 is square body, square body, rectangular body.
Described reflecting component 3 is arranged on the below of described sensor circuit plate 4, and the top of described sensor circuit plate 4 is provided with transparent armor 1.In a preferred embodiment of solar energy tracking photoelectric sensor of the present invention, described transparent armor 1 is cover plate.
The front of described sensor circuit plate 4 is provided with front sensing element 800.Front sensing element is such as photoelectric tube, photomultiplier, photoresistance, phototriode, photoelectrical coupler, solar cell, infrared ray sensor, UV sensor, optical fiber type photoelectric sensor, color sensor, CCD and cmos sensor etc.In a preferred embodiment of solar energy tracking photoelectric sensor of the present invention, described front sensing element is photoelectric tube, photomultiplier, photoresistance or phototriode.More preferably, described front sensing element is photoelectric cell.
The reverse side of described sensor circuit plate 4 is provided with the first reverse side sensing element 801, second reverse side sensing element 802, the 3rd reverse side sensing element 803, the 4th reverse side sensing element 804, the 5th reverse side sensing element 805, the 6th reverse side sensing element 806, the 7th reverse side sensing element 807, the 8th reverse side sensing element 808, the 9th reverse side sensing element 809, the tenth reverse side sensing element the 810, the 11 reverse side sensing element the 811, the 12 reverse side sensing element 812.Reverse side sensing element is such as photoelectric tube, photomultiplier, photoelectric cell, phototriode, photoelectrical coupler, solar cell, infrared ray sensor, UV sensor, optical fiber type photoelectric sensor, color sensor, CCD and cmos sensor etc.In a preferred embodiment of solar energy tracking photoelectric sensor of the present invention, the first reverse side sensing element 801, second reverse side sensing element 802, the 3rd reverse side sensing element 803, the 4th reverse side sensing element 804, the 5th reverse side sensing element 805, the 6th reverse side sensing element 806, the 7th reverse side sensing element 807, the 8th reverse side sensing element 808, the 9th reverse side sensing element 809, the tenth reverse side sensing element the 810, the 11 reverse side sensing element the 811, the 12 reverse side sensing element 812 are photoelectric tube, photomultiplier, photoelectric cell or phototriode.More preferably, the first reverse side sensing element 801, second reverse side sensing element 802, the 3rd reverse side sensing element 803, the 4th reverse side sensing element 804, the 5th reverse side sensing element 805, the 6th reverse side sensing element 806, the 7th reverse side sensing element 807, the 8th reverse side sensing element 808, the 9th reverse side sensing element 809, the tenth reverse side sensing element the 810, the 11 reverse side sensing element the 811, the 12 reverse side sensing element 812 are photoelectric cell.It will be appreciated by those skilled in the art that photoelectric cell is a kind of special semiconductor diode, can be direct current by visible light transformation.Photronic kind is a lot, and conventional have selenium cell, silicon photocell and thallium sulfide, silver sulfide photoelectric cell etc.Be mainly used in instrument, robotization telemetry and telecommand aspect.
Be formed with light leak gap between described sensor circuit plate 4 and described housing 7, the light of oblique incidence is reflected onto on the reverse side sensing element of described sensor circuit plate 4 after described transparent armor 1 and described light leak gap are radiated on described reflecting component 3.Light leak gap is specifically arranged or capable reverse side sensing element for the irradiation light of the sun being guided to, so that obtain sunny oblique fire angle.The light leak gap i.e. passage of light of artificial setting, its set-up mode is varied, is not limited to concrete illustrated embodiment of the present invention.In a preferred embodiment of solar energy tracking photoelectric sensor of the present invention, described transparent armor 1, described sensor circuit plate 4, described reflecting component 3 all become tabular, and described transparent armor 1, described sensor circuit plate 4, described reflecting component 3 successively parallel interval be arranged in described housing 7.
In another preferred embodiment of solar energy tracking photoelectric sensor of the present invention, the light intensity that has been sticked bottom described transparent armor 1 weakens glass.
In another preferred embodiment of solar energy tracking photoelectric sensor of the present invention, each inwall corner of described housing 7 is equipped with the first mounting blocks 72, second mounting blocks 74, the 3rd mounting blocks 76, the 4th mounting blocks 78, and each corner of described sensor circuit plate 4 correspondingly overlaps and is fixed on each first mounting blocks 72, second mounting blocks 74, the 3rd mounting blocks 76, the 4th mounting blocks 78.
In another preferred embodiment of solar energy tracking photoelectric sensor of the present invention, described light leak gap is the gap formed between the inwall of described housing 7 and described sensor circuit plate 4 periphery.As shown in Figure 1 to Figure 3, the first light leak gap 92, light leak gap 91, second, the 3rd light leak gap 93 or the 4th light leak gap 94 is formed with between the inwall of described housing 7 and described sensor circuit plate 4 periphery.Preferably, the first light leak gap 92, light leak gap 91, second, the 3rd light leak gap 93 are all identical with the 4th light leak gap 94 size and shape.
In another preferred embodiment of solar energy tracking photoelectric sensor of the present invention, described front sensing element 800 is positioned at the middle part of described sensor circuit plate 4, and quantity is one.
In another preferred embodiment of solar energy tracking photoelectric sensor of the present invention, described first reverse side sensing element 801, second reverse side sensing element 802, 3rd reverse side sensing element 803, 4th reverse side sensing element 804, 5th reverse side sensing element 805, 6th reverse side sensing element 806, 7th reverse side sensing element 807, 8th reverse side sensing element 808, 9th reverse side sensing element 809, tenth reverse side sensing element 810, 11 reverse side sensing element 811, 12 reverse side sensing element 812 centered by the reverse side position of front sensing element 800 correspondence successively along perpendicular to the uniform arrangement in direction on each limit of sensor circuit plate 4.And, described first reverse side sensing element 801, second reverse side sensing element 802, the 3rd reverse side sensing element 803, the 4th reverse side sensing element 804, the 5th reverse side sensing element 805, the 6th reverse side sensing element 806, the 7th reverse side sensing element 807, the 8th reverse side sensing element 808, the 9th reverse side sensing element 809, the tenth reverse side sensing element the 810, the 11 reverse side sensing element the 811, the 12 reverse side sensing element 812 across arrangement, and be at least three along the quantity of the direction row's reverse of the cloth sensing element perpendicular to each limit of sensor circuit plate 4.
Specifically describe a specific embodiment of solar energy tracking photoelectric sensor of the present invention below, in this some embodiment, front sensing element 800, described first reverse side sensing element 801, second reverse side sensing element 802, 3rd reverse side sensing element 803, 4th reverse side sensing element 804, 5th reverse side sensing element 805, 6th reverse side sensing element 806, 7th reverse side sensing element 807, 8th reverse side sensing element 808, 9th reverse side sensing element 809, tenth reverse side sensing element 810, 11 reverse side sensing element 811, 12 reverse side sensing element 812 is photoelectric cell.
As shown in Figure 1, the solar energy tracking photoelectric sensor of the present embodiment is based on photronic photoelectric sensor.This solar energy tracking photoelectric sensor weakens glass 2, reflecting component 3, sensor circuit plate 4, controller 5 and housing 7 form primarily of transparent armor 1, light intensity.A vital role of transparent armor 1 is inner for protection external substance enters housing 7, and allows sunlight to inject.Light intensity weakens a vital role of glass 2 for weakening light intensity, avoids high light, certainly, also can not arrange light intensity according to light intensity degree and weakens glass.A vital role of reflecting component 3 is reflection ray, will through the first light leak gap 91, second light leak gap 92, the oblique ray in the 3rd light leak gap 93 or the 4th light leak gap 94 reflexes to reverse side sensing element (the i.e. described first reverse side sensing element 801 of sensor circuit plate 4, second reverse side sensing element 802, 3rd reverse side sensing element 803, 4th reverse side sensing element 804, 5th reverse side sensing element 805, 6th reverse side sensing element 806, 7th reverse side sensing element 807, 8th reverse side sensing element 808, 9th reverse side sensing element 809, tenth reverse side sensing element 810, 11 reverse side sensing element 811, 12 reverse side sensing element 812) on.A vital role of sensor circuit plate is for utilizing front sensing element 800 and described first reverse side sensing element 801, second reverse side sensing element 802, 3rd reverse side sensing element 803, 4th reverse side sensing element 804, 5th reverse side sensing element 805, 6th reverse side sensing element 806, 7th reverse side sensing element 807, 8th reverse side sensing element 808, 9th reverse side sensing element 809, tenth reverse side sensing element 810, 11 reverse side sensing element 811, 12 reverse side sensing element 812 induction light shines.A vital role of controller 5 is the signal of control analysis sensor circuit plate 4 input.A vital role of housing 7 is for forming external structure.And, in the present embodiment, there is bottom housing 7 bottom 6, so that dismounting.
As shown in Figure 1 to Figure 3, the housing 7 upper surface the superiors arrange transparent armor 1.Place one deck light intensity under transparent armor 1 and weaken glass 2.It is dark brown that light intensity weakens glass 2.Separate at dark brown light intensity weakening glass 2 back side and be placed with sensor circuit plate 4.Controller 5 is placed with in the bottom 6 of housing 7.
Reflecting component 3 is placed with abreast on controller 5.Wherein, reflecting component 3 can be rear reflector, also can make reflecting coating on flat board.Sensor circuit plate 4, reflecting component 3 and controller 5 are encapsulated in housing 7 by bottom 6.Front center placement one piece of photoelectric cell of sensor circuit plate 4, this photoelectric cell is used as front sensing element 800.The reverse side of sensor circuit plate 4 is to play center for initial point, and place the equal photoelectric cell of quantity along coordinate axis symmetry, specifically as shown in Figure 3, all directions place 3, totally 9 reverse side sensing elements.Certainly, the quantity of this reverse side sensing element can suitably change as the case may be.Quantity is more, arranges more intensive, and the precision measuring the sunray angle of inclination obtained is higher.
As shown in Figure 1, when sunray through transparent armor 1, to weaken after glass 2 through dark brown glass and vertically inject housing 2, sunlight shines directly on the front sensing element 800 on the front surface of sensor circuit plate 4, and is irradiated on reflecting component 3 by the light leak gap (i.e. the first light leak gap 92, light leak gap 91, second, the 3rd light leak gap 93 or the 4th light leak gap 94) between the inwall of sensor circuit plate 4 and housing 7.Owing to being vertical incidence, the light that reflecting component 3 reflects is returned by original optical path, is not irradiated to the lower surface of sensor circuit plate 4, so the reverse side sensing element of sensor circuit plate lower surface can not light, different from the induced signal of front sensing element.Such as, in the present embodiment, the photoelectric cell that the front of sensor circuit plate 4 is arranged produces electromotive force because of light, and the photoelectric cell that the reverse side of sensor circuit plate 4 is arranged is not because producing electromotive force.Now detect the result drawing sunshine vertical incidence.
As shown in Figure 2, after sunshine inclination certain angle, the same with direct irradiation for the front sensing element 800 of sensor circuit plate 4, no matter whether vertical incidence is all be in by direct projection state.Therefore the front sensing element 800 of sensor circuit plate 4 can judge intensity of illumination at that time (namely rain or shine weather).After sun oblique fire, by (i.e. the first light leak gap 91, light leak gap between sensor circuit plate 4 and housing 7, second light leak gap 92, 3rd light leak gap 93 or the 4th light leak gap 94) when being irradiated on reflecting component 3 reflection ray through corresponding reflection angle, by sunshine reflected illumination to the reverse side sensing element on the reverse side of sensor circuit plate 4, the first reverse side sensing element 801 in the present embodiment, second reverse side sensing element 802, 3rd reverse side sensing element 803, 4th reverse side sensing element 804, 5th reverse side sensing element 805, 6th reverse side sensing element 806, 7th reverse side sensing element 807, 8th reverse side sensing element 808, 9th reverse side sensing element 809, tenth reverse side sensing element 810, 11 reverse side sensing element 811, 12 reverse side sensing element 812.Corresponding signal can be sent after the reverse side sensing element of sensor circuit plate 4 is illuminated.Such as, in the present embodiment, the photoelectric cell be sunlighted at sensor circuit plate 4 reverse side can produce electromotive force, if the photoelectric cell in itself and front is compared, the electromotive force that electromotive force and the photoelectric cell in front of the photoelectric cell generation of reverse side produce is identical or close, then can judging that the sun tilts to respective direction, by being irradiated to obtain photronic location, the angle of inclination of the sun can be extrapolated.Herein, term " respective direction " refers to the concrete direction of illumination of the sun calculated according to the photoelectric cell producing electromotive force.Computing method are such as: on sensor circuit plate 4, evenly place a cruciform photovoltaic cell arrays, reflecting component 3 is b mm apart from sensor circuit plate 4 lower surface, when detect distance perspective answer the photoelectric cell of a mm position, circuit board 4 edge to produce electromotive force and the electromotive force of the electromotive force the produced photoelectric cell generation of placing close to the front of sensor circuit plate 4 time, can judge that now light is irradiated to the photoelectric cell of this reverse side, can calculate that the oblique fire angle A of the sun is arctan (a/2b) thus.
Solar energy tracking photoelectric sensor of the present invention, with simple sensing element such as photronic array, lighting angle is converted into sensing element exporting change on special angle, thus the definite change reflecting lighting angle with the change of the output signal of sensing element, thus fundamentally can solve traditional lighting angle sensor and change with incident intensity and affect sensor circuit plate and export micro-curent change for the error due to photoelectric device existence itself existing during distinguishing rule, photoelectric device photoelectric characteristic curve linear degree deficiency and light intensity induction range limit to the angle brought and differentiate that scope is little, error is large, the problems such as large are affected by light intensity.And, solar energy tracking photosensor structure of the present invention is simple, cost is low, reliability is high, can predetermined angle measurement range, within the scope of certain accuracy requirement with the sunny angle of light degree of the size accurate response of voltage, and can fully improve solar energy utilization ratio based on photronic invention lighting angle sensor.
Compared with traditional solar energy tracking position sensor, solar energy tracking photoelectric sensor of the present invention, comprise housing, sensor circuit plate, reflecting component and controller, described reflecting component is arranged on the below of described sensor circuit plate, the top of described sensor circuit plate is provided with transparent armor, the front of described sensor circuit plate is provided with front sensing element, the reverse side of described sensor circuit plate is provided with reverse side sensing element, light leak gap is formed between described sensor circuit plate and described housing, the light of oblique incidence is reflected onto on the sensing element of the reverse side of described sensor circuit plate after described transparent armor and described light leak gap are radiated on described reflecting component.After sun oblique fire, when being irradiated on rear reflector by the light leak gap between sensor circuit plate and housing, reflection ray is through corresponding reflection angle, by sunshine reflected illumination to the reverse side sensing element on the bottom surface (also claiming reverse side herein) of sensor circuit plate.The sensing element that sensor circuit plate reverse side is sunlighted can induce the irradiation of light, produce corresponding signal, the induced signal of this signal and front sensing element is compared, if this two signal is identical or close, then can judge that the sun tilts to respective direction, according to being irradiated to obtain the location of reverse side sensing element, the angle of inclination of the sun can be extrapolated.Therefore, solar energy tracking photosensor structure of the present invention is simple, low cost, high resolving power, it can follow the tracks of the sun more accurately, keep battery windsurfing energy collecting face and sunlight vertical irradiation, at utmost receive illumination, effectively improve solar energy utilization ratio, and round-the-clock photosignal can be provided.
The invention allows for a kind of photovoltaic generating system.As shown in Figures 4 and 5, this photovoltaic generating system comprises solar panel 200, kinematic train 300, photoelectric sensor 100 and pylon 400.Described kinematic train 300 is arranged between described pylon 400 and described solar panel 200.Described photoelectric sensor 100 is electrically connected with described kinematic train 300.The connection of described solar panel 200, kinematic train 300, pylon 400 and described photoelectric sensor 100 and described kinematic train 300 and control to adopt prior art, does not repeat.
Wherein, described photoelectric sensor 100 is above-mentioned solar energy tracking photoelectric sensor.In the present embodiment, described photoelectric sensor 100 is arranged on the surface of described solar panel 200, and described transparent armor 1, described sensor circuit plate 4 and described reflecting component 3 are all parallel with the surface of described solar panel 200.As shown in Figure 4, when the sun 500 and solar panel 200 tilt certain angle, photoelectric sensor 100 is according to the angle of inclination of the above-mentioned principle induction sun 500.Then, controller 5 pairs of kinematic trains 300 of photoelectric sensor 100 send signal instruction, control kinematic train 300 and perform an action, after making solar panel 200 turn over certain angle, vertical with the incident ray of the sun 500 all the time, as shown in Figure 5.
According to photovoltaic generating system provided by the invention, after sun oblique fire, by between sensor circuit plate 4 and housing 7 light leak gap be irradiated on reflecting component 3 time reflection ray through corresponding reflection angle, by sunshine reflected illumination to the reverse side sensing element on the reverse side of sensor circuit plate 4.The reverse side sensing element that the reverse side of sensor circuit plate 4 is sunlighted can induce the irradiation of light, produce corresponding signal, the induced signal of this signal and front sensing element is compared, if this two signal is identical or close, then can judge that the sun tilts to respective direction, according to being irradiated to obtain the location of reverse side sensing element, the angle of inclination of the sun can be extrapolated, and control kinematic train 300 performs an action thus, make sun can cell panel 200 can be vertical with the incident ray of the sun 500 all the time, thus, keep solar panel 200 energy collecting face and sunlight vertical irradiation, at utmost receive illumination, effectively improve solar energy utilization ratio, and round-the-clock photosignal can be provided.
Those skilled in the art easily know; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.Protection scope of the present invention is determined by claims.
Claims (15)
1. solar energy tracking photoelectric sensor, comprise housing and controller, sensor circuit plate and reflecting component is provided with successively along the direction that sunlight is injected in described housing, described sensor circuit plate is electrically connected with described controller, it is characterized in that, the circumsolar side of leaning on of described sensor circuit plate is provided with transparent armor, the front of described sensor circuit plate is provided with front sensing element, the reverse side of described sensor circuit plate is provided with reverse side sensing element, light leak gap is formed between described sensor circuit plate and described housing, the light of oblique incidence is reflected onto on described reverse side sensing element after described transparent armor and described light leak gap are radiated on described reflecting component.
2. solar energy tracking photoelectric sensor according to claim 1, is characterized in that, described transparent armor is cover plate.
3. solar energy tracking photoelectric sensor according to claim 1, is characterized in that, described reflecting component is rear reflector.
4. solar energy tracking photoelectric sensor according to claim 1, is characterized in that, described transparent armor weakens glass away from light intensity that the one side of the sun has been sticked.
5. solar energy tracking photoelectric sensor according to claim 1, it is characterized in that, described transparent armor, described sensor circuit plate, described reflecting component all become tabular, and described transparent armor, described sensor circuit plate, described reflecting component successively parallel interval be arranged in described housing.
6. solar energy tracking photoelectric sensor according to claim 1, is characterized in that, described front sensing element and described reverse side sensing element are photoelectric tube, photomultiplier, photoelectric cell, photoresistance or phototriode.
7. solar energy tracking photoelectric sensor according to claim 6, is characterized in that, described front sensing element and described reverse side sensing element are photoelectric cell.
8. solar energy tracking photoelectric sensor according to claim 1, is characterized in that, described housing is square body.
9. solar energy tracking photoelectric sensor according to claim 8, is characterized in that, each inwall corner of described housing is equipped with mounting blocks, and each corner of described sensor circuit plate correspondingly overlaps and is fixed on each mounting blocks.
10. solar energy tracking photoelectric sensor according to claim 9, is characterized in that, described light leak gap is the gap formed between the inwall of described housing and described sensor circuit plate periphery.
11. solar energy tracking photoelectric sensors according to claim 1, it is characterized in that, described front sensing element is positioned at the middle part of described sensor circuit plate, and quantity are one.
12. solar energy tracking photoelectric sensors according to claim 11, is characterized in that, described reverse side sensing element centered by the reverse side position that front sensing element is corresponding successively along perpendicular to the uniform arrangement in direction on the described each limit of sensor circuit plate.
13. solar energy tracking photoelectric sensors according to claim 12, is characterized in that, described reverse side sensing element across arrangement, and are at least three along the quantity of the direction row's reverse of the cloth sensing element perpendicular to each limit of sensor circuit plate.
14. photovoltaic generating systems, comprise solar panel, kinematic train, photoelectric sensor and pylon, described kinematic train is arranged between described pylon and described solar panel, described photoelectric sensor is electrically connected with described kinematic train, it is characterized in that, the solar energy tracking photoelectric sensor of described photoelectric sensor according to any one of claim 1 to 13.
15. photovoltaic generating systems according to claim 14, it is characterized in that, described photoelectric sensor is arranged on the surface of described solar panel, and described transparent armor, described sensor circuit plate are all parallel with the surface of described solar panel with described reflecting component.
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| CN103616012A (en) * | 2013-11-29 | 2014-03-05 | 天津孚感科技有限公司 | Method for measuring incident angle of parallel light and photoelectric angle sensor |
| CN104201978B (en) * | 2014-08-25 | 2017-07-25 | 武汉理工大学 | Based on light reflect from motion tracking device of solar generating |
| CN105141237A (en) * | 2015-07-29 | 2015-12-09 | 中国华能集团清洁能源技术研究院有限公司 | Building photovoltaic module and photovoltaic building integrated -based ultraviolet monitoring system |
| CN105790689B (en) * | 2016-03-04 | 2018-01-09 | 三峡大学 | A kind of device of solar generating with automatic regulation function |
| CN105627984A (en) * | 2016-03-08 | 2016-06-01 | 浙江海洋学院 | Sextant |
| CN105929853A (en) * | 2016-04-27 | 2016-09-07 | 广西大学 | Solar tracking device based on fiber array |
| CN112754359B (en) * | 2020-12-31 | 2023-01-17 | 武汉理工大学 | Intelligent cleaning robot applying laser sensing and charging technology |
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