CN103475269B - Small-size Fresnel concentrated solar power generation system - Google Patents
Small-size Fresnel concentrated solar power generation system Download PDFInfo
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- CN103475269B CN103475269B CN201310409617.4A CN201310409617A CN103475269B CN 103475269 B CN103475269 B CN 103475269B CN 201310409617 A CN201310409617 A CN 201310409617A CN 103475269 B CN103475269 B CN 103475269B
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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
- Y02E10/52—PV systems with concentrators
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The invention discloses a small-size Fresnel concentrated solar power generation system which comprises a structure part and an electronic control part. The structure part comprises a supporting mechanism, a pitching transmission mechanism, a direction transmission mechanism, an electronic control box and a lens box. The lens box comprises a box body, a Fresnel lens, a photovoltaic cell, a framework and a U-shaped support. The supporting mechanism comprises an under frame, a large round disc and a lower supporting barrel detachably connected with the large round disc. The pitching transmission mechanism comprises a transmission shaft and a pitching motor driving the transmission shaft to rotate. The direction transmission mechanism comprises a mounting platform, a bearing seat, a bearing, an upper supporting barrel, a large synchronous pulley connected with the upper supporting barrel in a cooperation mode, a small synchronous pulley connected with the large synchronous pulley through a synchronous belt and a direction motor driving the small synchronous pulley to rotate. The small-size Fresnel concentrated solar power generation system is simple in structure, small in size, convenient to dismount and mount, convenient to move and use and wide in application range.
Description
Technical field
The present invention relates to solar energy generation technology field, be specially a kind of small-sized Fresnel concentrating solar power generation system.
Background technology
Solar energy is as a kind ofly enriching environmental protection, not only can freely using but also without the need to the regenerative resource of transport, its application prospect is very wide, and solar energy concentration generating system is the important way utilizing solar energy, it utilizes concentrator by the condensing incident light of larger area on less area, and then improves the incident intensity in unit are.Solar concentrator can be divided into refraction type and reflective two kinds according to the difference of optically focused form, wherein Fresnel Lenses is a kind of refraction type light gathering device, and be the condenser of the complanation developed by planoconvex spotlight, its one side is plane, another side be according to the minute surface junior unit of convex lens design sawtooth corner angle, sunlight forms optically focused effect through the refraction of sawtooth corner angle.The solar concentrating system volume applying Fresnel Lenses in prior art is larger, be applicable to build large-sized solar condensation photovoltaic power station, just be difficult to move once install, usually can only be placed on large stretch of vacant lot, dumb being also not easy to is installed use, thus the place of Solar use and utilance are affected.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of small-sized Fresnel concentrating solar power generation system portable, convenient and practical flexibly.
Technological means of the present invention is as follows:
A kind of small-sized Fresnel concentrating solar power generation system, comprises structure division and automatically controlled part;
Described structure division comprises supporting mechanism, pitch drive mechanism, Amimuth Transmission mechanism, electric-controlled box and lens case;
The U-shaped support that described lens case comprises casing, is arranged on the Fresnel Lenses of box top, the photovoltaic cell be placed in casing, the framework being set in bottom half and two side are fixedly connected with the framework of bottom half; Described cabinet shell is made up of aluminum alloy materials;
The lower support cylinder that described supporting mechanism comprises underframe, is fixedly installed on the big disk in the middle part of underframe and removably connects with big disk;
Described pitch drive mechanism comprises horizontal through U-shaped support two side and the power transmission shaft of framework, the pitching motor of drive drive axis;
Described Amimuth Transmission mechanism comprises mounting platform, the upper support tube of the bearing pedestal be fixed on mounting platform, the bearing be arranged in bearing pedestal, external diameter and bearing inner race interference fit, by the axle sleeve that the is sleeved on upper support tube bottom large synchronous pulley in mating connection with upper support tube, the small synchronous pulley be connected with large synchronous pulley by Timing Belt and the azimuth-drive motor driving small synchronous pulley to rotate; Described upper support tube upper end and U-shaped frame bottom center removably connect;
Described electric-controlled box is positioned on mounting platform;
Described electric control part is divided and is comprised:
Be symmetrically distributed in two storage batterys on big disk;
Be placed in electric-controlled box, for the pitch controller driving pitching motor drive lens case to follow the trail of the sun angle of pitch;
Be placed in electric-controlled box, follow the trail of the azimuth controller of solar azimuth for driving azimuth-drive motor drive lens case;
Described storage battery is connected with photovoltaic cell, and described storage battery exports electric energy for storing photovoltaic cell, and provides working power for pitch controller, azimuth controller, pitching motor and azimuth-drive motor; Described pitch controller is connected with pitching motor; Described azimuth controller is connected with azimuth-drive motor;
Further, also comprise the light detecting tube 28 be arranged on casing, be placed in light detecting tube 28, for receiving sunlight and carrying out light sensor I and the light sensor II that opto-electronic conversion exports the signal of telecommunication corresponding to Intensity of the sunlight;
Described pitch controller is connected with light sensor II with light sensor I, the signal of telecommunication size that the Intensity of the sunlight exported respectively light sensor I and light sensor II is corresponding compares, and drives pitching motor drive lens case to rotate until sunlight incident direction is vertical incidence to the direction of sun incidence;
Further, described photovoltaic cell adopts multi-junction gallium arsenide solar cell;
Further, described underframe is provided with criss-crossing reinforcing ribs; Described framework is made up of angle steel; Described Timing Belt adopts synchronous belt with trapezoid teeth; Described azimuth-drive motor employing model is the DC toothed gearing electric motor of 37JB6K/33ZY24-1230; Described bearing adopts 6008 deep groove ball bearings;
Further, described lower support cylinder comprises lower shell, is separately positioned on upper disk and the lower disc at the upper and lower two ends of lower shell; Described lower disc and big disk are bolted; Described upper disk is connected with mounting platform bottom surface by bolt; The right angle that described lower disc and lower shell are formed is welded with at least 4 symmetrical gussets;
Described upper support tube comprises upper shell, arranges the roundel of upper shell upper end, and this roundel and U-shaped frame bottom center are bolted, and the right angle that described upper shell and roundel are formed is welded with at least 4 symmetrical gussets;
Further, described Fresnel Lenses has 4, and 4 described Fresnel Lenses are fixed by the press strip being arranged on box top, and described Fresnel Lenses and casing form enclosed construction; Described photovoltaic cell has 4, is installed on the bottom surface in casing; The sunlight of dispersion gathers on described photovoltaic cell by described Fresnel Lenses;
Further, described pitching motor is fixed on U-shaped rack side wall by electric machine support, and this pitching motor is connected with power transmission shaft by shaft coupling; Described azimuth-drive motor is installed on mounting platform by bolt, and this orientation machine shaft drives small synchronous pulley to rotate by reducing machine;
Further, described bearing pedestal and bearing interference fit; Described axle sleeve and large synchronous pulley interference fit.
Owing to have employed technique scheme, small-sized Fresnel concentrating solar power generation system provided by the invention, be integrated with supporting mechanism, pitch drive mechanism, Amimuth Transmission mechanism, lens case and be placed with the electric-controlled box of pitch controller and azimuth controller, can realize the receiving plane that large area sunray is effectively converged to photovoltaic cell by Fresnel Lenses, solar energy is converted to electrical energy for storage in storage battery by photovoltaic cell; Structure of the present invention is simple, volume is little, dismounting and easy for installation, flexibly portable, to solve in prior art the solar concentrating system volume applying Fresnel Lenses comparatively large, once install the problem being just difficult to movement; Be convenient to mobile and use, applied range, improves the utilance of solar energy, is not only convenient to produce, and cost is very cheap is suitable for extensive popularization.
Accompanying drawing explanation
Fig. 1 is the structural representation of structure division of the present invention;
Fig. 2 is the structured flowchart of pitch controller of the present invention;
Fig. 3 is the structured flowchart of azimuth of the present invention controller;
Fig. 4 is take sunlight as light source without the GaAs three junction photovoltaic battery I-V curve in concentrator situation;
Fig. 5 adopts the GaAs three junction photovoltaic battery I-V curve being provided with the lens case of Fresnel Lenses.
In figure: 1, Fresnel Lenses, 2, casing, 3, press strip, 4, large synchronous pulley, 5, bearing, 6, framework, 7, electric-controlled box, 8, mounting platform, 9, lower support cylinder, 10, storage battery, 11, gusset, 12, reinforcement, 13, underframe, 14, big disk, 15, azimuth-drive motor, 16, bearing pedestal, 17, reducing machine, 18, small synchronous pulley, 19, Timing Belt, 20, axle sleeve, 21, upper support tube, 22, pitching motor, 23, electric machine support, 24, shaft coupling, 25, U-shaped support, 26, power transmission shaft, 27, photovoltaic cell, 28, light detecting tube; 91, upper disk, 92, lower disc, 93, lower shell, 211, roundel, 212, upper shell.
Embodiment
The small-sized Fresnel concentrating solar power generation system of one as shown in Figure 1, comprises structure division and automatically controlled part; Described structure division comprises supporting mechanism, pitch drive mechanism, Amimuth Transmission mechanism, electric-controlled box 7 and lens case; Described lens case comprises casing 2, is arranged on the Fresnel Lenses 1 of casing 2 end face, the photovoltaic cell 27 be placed in casing 2, be set in the U-shaped support 25 that framework 6 bottom casing 2 and two side be fixedly connected with the framework 6 bottom casing 2; Described casing 2 shell is made up of aluminum alloy materials; The lower support cylinder 9 that described supporting mechanism comprises underframe 13, is fixedly installed on the big disk 14 in the middle part of underframe 13 and removably connects with big disk 14; Described pitch drive mechanism comprises horizontal through U-shaped support 25 two side and the power transmission shaft 26 of framework 6, the pitching motor 22 of drive power transmission shaft 26 rotation; Described Amimuth Transmission mechanism comprises mounting platform 8, the upper support tube 21 of the bearing pedestal 16 be fixed on mounting platform 8, the bearing 5 be arranged in bearing pedestal 16, external diameter and bearing 5 inner ring interference fit, by the axle sleeve 20 that the is sleeved on upper support tube 21 bottom large synchronous pulley 4 in mating connection with upper support tube 21, the small synchronous pulley 18 be connected with large synchronous pulley 4 by Timing Belt 19 and the azimuth-drive motor 15 driving small synchronous pulley 18 to rotate; Described upper support tube 21 upper end and U-shaped support 25 bottom centre removably connect; Described electric-controlled box 7 is positioned on mounting platform 8; Described electric control part is divided and is comprised: be symmetrically distributed in two storage batterys 10 on big disk 14; Be placed in electric-controlled box 7, for the pitch controller driving pitching motor 22 drive lens case to follow the trail of the sun angle of pitch; Be placed in electric-controlled box 7, follow the trail of the azimuth controller of solar azimuth for driving azimuth-drive motor 15 drive lens case; Described storage battery 10 is connected with photovoltaic cell 27, and described storage battery 10 exports electric energy for storing photovoltaic cell 27, and provides working power for pitch controller, azimuth controller, pitching motor 22 and azimuth-drive motor 15; Described pitch controller is connected with pitching motor 22; Described azimuth controller is connected with azimuth-drive motor 15; Further, also comprise the light detecting tube 28 be arranged on casing 2, be placed in light detecting tube 28, for receiving sunlight and carrying out light sensor I and the light sensor II that opto-electronic conversion exports the signal of telecommunication corresponding to Intensity of the sunlight; Described pitch controller is connected with light sensor II with light sensor I, the signal of telecommunication size that the Intensity of the sunlight exported respectively light sensor I and light sensor II is corresponding compares, and drives pitching motor 22 drive lens case to rotate until sunlight incident direction is vertical incidence to the direction of sun incidence; Further, described photovoltaic cell 27 adopts multi-junction gallium arsenide solar cell; Further, described underframe 13 is provided with criss-crossing reinforcing ribs 12; Described framework 6 is made up of angle steel; Described Timing Belt 19 adopts synchronous belt with trapezoid teeth; Described azimuth-drive motor 15 adopts model to be the DC toothed gearing electric motor of 37JB6K/33ZY24-1230; Described bearing 5 adopts 6008 deep groove ball bearings; Further, described lower support cylinder 9 comprises lower shell 93, is separately positioned on upper disk 91 and the lower disc 92 at lower shell about 93 two ends; Described lower disc 92 is bolted with big disk 14; Described upper disk 91 is connected with mounting platform 8 bottom surface by bolt; The right angle that described lower disc 92 and lower shell 93 are formed is welded with at least 4 symmetrical gussets 11; Described upper support tube 21 comprises upper shell 212, arranges the roundel 211 of upper shell 212 upper end, this roundel 211 is bolted with U-shaped support 25 bottom centre, and the right angle that described upper shell 212 and roundel 211 are formed is welded with at least 4 symmetrical gussets 11; Further, described Fresnel Lenses 1 has 4, and 4 described Fresnel Lenses 1 are fixed by the press strip 3 being arranged on casing 2 end face, and described Fresnel Lenses 1 forms enclosed construction with casing 2; Described photovoltaic cell 27 has 4, is installed on the bottom surface in casing 2; The sunlight of dispersion gathers on described photovoltaic cell 27 by described Fresnel Lenses 1; Further, described pitching motor 22 is fixed on U-shaped support 25 sidewall by electric machine support 23, and this pitching motor 22 is connected with power transmission shaft 26 by shaft coupling 24; Described azimuth-drive motor 15 is installed on mounting platform 8 by bolt, and this azimuth-drive motor 15 rotating shaft drives small synchronous pulley 18 to rotate by reducing machine 17; Further, described bearing pedestal 16 and bearing 5 interference fit; Described axle sleeve 20 and large synchronous pulley 4 interference fit.
When using this small-sized Fresnel concentrating solar power generation system, large area sunray is converged to the receiving plane of the small size photovoltaic cell 27 be placed in casing 2 by the Fresnel Lenses 1 being arranged on casing 2 end face, and solar energy is converted to electric energy by photovoltaic cell 27; As preferably, described photovoltaic cell 27 adopts multi-junction gallium arsenide solar cell; Storage battery 10 exports electric energy for storing photovoltaic cell 27, and provides working power for pitch controller, azimuth controller, pitching motor 22 and azimuth-drive motor 15.
As shown in Figure 2, pitch controller comprises solar direction identification module, tracing control module and pitching motor driver module; Solar direction identification module is connected with light sensor II with the light sensor I be placed in light detecting tube 28, the presence or absence of sunlight, power are converted into the signal of telecommunication by light sensor I and light sensor II, send into solar direction identification module to process, when unglazed irradiation or native system are just to the solar time, solar direction identification module exports V
aB=0, pitching motor 22 can not rotate, when sunray is with certain angle directive light detecting tube 28, the signal of telecommunication that the sunlight intensity that light sensor I and light sensor II export respectively is corresponding, solar direction identification module compares the signal of telecommunication, judge sunlight incident direction, export comparative result V
aB, this comparative result V
aBcorresponding with the current incidence angle of sunlight, tracing control module is according to the comparative result V corresponding with the current incidence angle of sunlight
aB, drive pitching motor 22 to rotate to the direction of sun incidence, drive lens case follows the trail of the sun angle of pitch until the sunlight incident direction that solar direction identification module is judged is vertical incidence, realizes the real-time automatic tracking to the sun; The signal of telecommunication corresponding to sunlight intensity exported when light sensor I is greater than the signal of telecommunication corresponding to sunlight intensity that light sensor II exports, tracing control module controls pitching motor 22 action by pitching motor driver module, pitching motor 22 drives U-shaped support 25 and framework 6 by power transmission shaft 26, lens case is rotated, till the light intensity equalization that light sensor I and light sensor II receive near the direction of light sensor II; The signal of telecommunication corresponding to sunlight intensity exported when light sensor II is greater than the signal of telecommunication corresponding to sunlight intensity that light sensor I exports, tracing control module controls pitching motor 22 action by pitching motor driver module, pitching motor 22 drives U-shaped support 25 and framework 6 by power transmission shaft 26, lens case is rotated, till the light intensity equalization that light sensor I and light sensor II receive near the direction of light sensor I.
As shown in Figure 3, azimuth controller comprise light-operated master switch module, morning and evening light-operated switch module, relay J 1, relay J 2, timer, azimuth-drive motor driver module, azimuth-drive motor reversion and the module that automatically resets, time main pulse circuit and reset switch S; In circuit, contact J1-4 and the J1-8 of relay J 1 is serially connected with in current supply circuit in storage battery 10, timer CR termination has the contact J2-4 of relay J 2, contact J2-4 and contact J2-8 forms normally opened contact, contact J2-4 and contact J2-6 forms normally-closed contact, contact J2-8 connects high level, and contact J2-6 is unsettled; Timer also connects the time main pulse circuit for generation of sprocket pulse; Timer output end is connected with azimuth-drive motor driver module; Azimuth-drive motor reversion and the module that automatically resets all are connected with azimuth-drive motor 15 with azimuth-drive motor driver module, the contact J2-9 of relay J 2 reverses with azimuth-drive motor and the module that automatically resets is connected, and azimuth-drive motor reversion simultaneously and the module that automatically resets also are connected with reset switch S; Described light-operated master switch module and morning and evening light-operated switch module comprise light sensor.At dark, luminous sensitivity included in light-operated master switch module high the resistance in the dark of transducer larger, can utilize " the electronic switch characteristic " of transistor, make in light-operated master switch module, off-state is in " electronic switch " that the coil of relay J 1 is connected mutually, and then the coil power supply loop of block system relay J1, cause being off state between contact J1-4 and the J1-8 of relay J 1, make subsequent conditioning circuit power-off; Contact J1-4 and the J1-8 of described relay J 1 is normally opened contact; In like manner, when there being illumination, the bright resistive of the transducer high to luminous sensitivity included in light-operated master switch module is little, and then the coil power supply loop of engage relay J1, be on-state between contact J1-4 and the J1-8 causing relay, storage battery 10 is powered for subsequent conditioning circuit.Early morning, light was more weak, the resistance of the transducer comparatively blunt to luminous sensitivity included by morning and evening light-operated switch module is larger, according to the input of integrated circuit and the logical relation of output, relay J 2 is caused to obtain electric, making between contact J2-8 and the J2-4 of relay J 2 is " closing " state, cause timer CR to hold as high level, timer realizes automatic clear during early morning; During daytime, the resistance of the transducer comparatively blunt to luminous sensitivity included by morning and evening light-operated switch module reduces, by the logical relation of integrated circuit in circuit, cause relay J 2 dead electricity, contact J2-4 and the J2-6 of relay J 2 connects, and makes CR hold as " 0 ", timer starts timing, when timer reaches timing time, according to timing design objective by azimuth-drive motor driver module to the both positive and negative polarity of azimuth-drive motor 15 applies+,-voltage, driving azimuth-drive motor 15 rotate forward; During dusk, the resistance of the transducer comparatively blunt to luminous sensitivity included by morning and evening light-operated switch module is still larger, by the logical relation of integrated circuit in circuit, relay J 2 is caused to obtain electric, contact J2-13 and the J2-9 of relay J 2 connects, by the logical relation of integrated circuit in circuit, to the both positive and negative polarity of azimuth-drive motor 15 apply respectively-,+voltage, drive azimuth-drive motor 15 to reverse, until get back to initial position, clash into collision reset switch S, stop at initial position, complete and automatically reset, now, reset switch S is in closure state all the time; After darkness, the resistance in the dark of the transducer high to luminous sensitivity included by photoelectricity master switch module increases greatly, makes relay J 1 power-off, and contact J1-4 and the J1-8 of relay J 1 disconnects, storage battery 10 stops powering for subsequent conditioning circuit, and whole night, native system did not consume electric energy.
Small-sized Fresnel concentrating solar power generation system provided by the invention, be integrated with supporting mechanism, pitch drive mechanism, Amimuth Transmission mechanism, lens case and be placed with the electric-controlled box of pitch controller and azimuth controller, can realize the receiving plane that large area sunray is effectively converged to photovoltaic cell by Fresnel Lenses, solar energy is converted to electrical energy for storage in storage battery by photovoltaic cell; Structure of the present invention is simple, volume is little, dismounting and easy for installation, flexibly portable, to solve in prior art the solar concentrating system volume applying Fresnel Lenses comparatively large, once install the problem being just difficult to movement; Be convenient to mobile and use, applied range, improves the utilance of solar energy, is not only convenient to produce, and cost is very cheap is suitable for extensive popularization.
System bulk of the present invention is less, and floor space only has 0.16 square metre, can be placed on roof, resident courtyard or the fritter such as corner, corner local, directly can be placed on ground, installs simple firm, cabinet shell can adopt the aluminium alloy plate of 2mm to be made by aluminum alloy TIG welding method, lightweight, is convenient to the heat radiation of photovoltaic cell, and Fresnel Lenses and casing form enclosed construction, are applicable to outdoor environment, can resistance to overcast and rainy strong wind weather, power transmission shaft 26 can adopt the solid shafting being simple and easy to process, framework adopts angle steel to be made by argon arc welding welding method, U-shaped support 25 can adopt Q235 low-carbon steel material to be made by gas tungsten arc welding welding method, electric machine support 23 is adopted to be fixed to by motor on U-shaped support 25, on the center of gravity of U-shaped support 25 without large impact, storage battery can select output voltage to be the storage battery of 12V, and it is symmetrically distributed on big disk, is beneficial to wind resistance and the steadiness of total system, the velocity of rotation of pitching motor 22 and azimuth-drive motor 15 is slower, to follow the tracks of sunlight, keep Fresnel Lenses vertical with sunray, make full use of intensity of illumination, the selection of azimuth-drive motor 15 is mainly considered: suitable speed reducing ratio, to ensure the even running of system, improves reliability and the stationarity of system cloud gray model, need motor actuating force large according to the azimuth deflection angle of a day, rotating speed is comparatively slow, selects DC toothed gearing electric motor, model is 37JB6K/33ZY24-1230, and going out shaft diameter is 6mm, and rated voltage is 12V, rated speed is 4r/min, and speed reducing ratio is 750, and nominal torque is 0.6N/m, consider that this transmission mechanism middle (center) bearing mainly bears axial force, the bearing selected is 6008 deep groove ball bearings, the transmission adopting Timing Belt 19 to realize between small synchronous pulley 18 and large synchronous pulley is the novel transmission mode combining band, Chain conveyer advantage, has following characteristics: transmission efficiency can reach more than 98%, fricton-tight, gearratio is accurate, stable drive, noise is little, transmitted power by several watts to kilowatt, oil resistant, resistance to wear is good, and maintenance is convenient, does not need lubrication, first tensile force is little, and suppressive jamming is little, synchronous belt with trapezoid teeth transmission is adopted between small synchronous pulley 18 and large synchronous pulley, can by gearratio for being set as 1:4 during practical application, and azimuth-drive motor 15 is DC speed-reducing, exporting speed reducing ratio is also 1:4, so the final speed reducing ratio of Amimuth Transmission mechanism is 1:16, setting small synchronous pulley 18 number of teeth is 16, the large synchronous pulley number of teeth is 64, so azimuth-drive motor 15 rotates one week large synchronous pulley turn over a tooth, sun motion in a hour 15 °, namely within every 4 minutes, 1 ° is rotated, the small synchronous pulley 18 of Amimuth Transmission mechanism needs rotation 3 teeth, its driving error is 5.4%, the right angle that lower disc 92 and lower shell 93 are formed is welded with at least 4 symmetrical gussets, the lower support cylinder canting that can prevent weld strength from causing not.
System of the present invention can make generated output improve 22 times, spotlight effect is obvious, refer to the comparison of experimental data: as shown in table 1 with sunlight is light source is without the GaAs three junction photovoltaic battery I-V tables of data in concentrator situation, as shown in table 2 with sunlight is light source is without the GaAs three junction photovoltaic battery experimental data table in concentrator situation, as shown in Figure 3 take sunlight as light source without the GaAs three junction photovoltaic battery I-V curve in concentrator situation, and employing as shown in table 3 is provided with the GaAs three junction photovoltaic battery I-V tables of data of the lens case of Fresnel Lenses, employing as shown in table 4 is provided with the GaAs three junction photovoltaic battery I-V curve that the GaAs three junction photovoltaic battery experimental data table of the lens case of Fresnel Lenses and employing are as shown in Figure 4 provided with the lens case of Fresnel Lenses,
Table 1. take sunlight as light source without the GaAs three junction photovoltaic battery I-V tables of data in concentrator situation
Table 2. take sunlight as light source without the GaAs three junction photovoltaic battery experimental data table in concentrator situation
Table 3. adopts the GaAs three junction photovoltaic battery I-V tables of data being provided with the lens case of Fresnel Lenses
Table 4. adopts the GaAs three junction photovoltaic battery experimental data table being provided with the lens case of Fresnel Lenses
Under Xenon light shining condition No. 1 gallium arsenide cells as shown in table 5 adopts the I-V experimental data of Fresnel Lenses, under Xenon light shining condition No. 1 gallium arsenide cells as shown in table 6 without the I-V experimental data of Fresnel Lenses, the employing Fresnel Lenses under Xenon light shining condition as shown in table 7 with without the experimental data of Fresnel Lenses;
No. 1 gallium arsenide cells of table 5. under Xenon light shining condition adopts the I-V experimental data of Fresnel Lenses
No. 1 gallium arsenide cells of table 6. under Xenon light shining condition is without the I-V experimental data of Fresnel Lenses
The employing Fresnel Lenses of table 7. under Xenon light shining condition and the experimental data without Fresnel Lenses
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. a small-sized Fresnel concentrating solar power generation system, is characterized in that comprising structure division and automatically controlled part;
Described structure division comprises supporting mechanism, pitch drive mechanism, Amimuth Transmission mechanism, electric-controlled box (7) and lens case;
The U-shaped support (25) that described lens case comprises casing (2), is arranged on the Fresnel Lenses (1) of casing (2) end face, the photovoltaic cell (27) be placed in casing (2), the framework (6) being set in casing (2) bottom and two side are fixedly connected with the framework (6) bottom casing (2); Described casing (2) shell is made up of aluminum alloy materials;
The big disk (14) that described supporting mechanism comprises underframe (13), be fixedly installed on underframe (13) middle part and the lower support cylinder (9) removably connected with big disk (14);
Described pitch drive mechanism comprises horizontal through the power transmission shaft (26) of U-shaped support (25) two side and framework (6), the pitching motor (22) that drives power transmission shaft (26) to rotate;
Described Amimuth Transmission mechanism comprises mounting platform (8), be fixed on the bearing pedestal (16) on mounting platform (8), be arranged on the bearing (5) in bearing pedestal (16), the upper support tube (21) of external diameter and bearing (5) inner ring interference fit, by the large synchronous pulley (4) that the axle sleeve (20) being sleeved on upper support tube (21) bottom is in mating connection with upper support tube (21), by the small synchronous pulley (18) that Timing Belt (19) is connected with large synchronous pulley (4), and the azimuth-drive motor (15) driving small synchronous pulley (18) to rotate, described upper support tube (21) upper end and U-shaped support (25) bottom centre removably connect,
Described electric-controlled box (7) is positioned on mounting platform (8);
Described electric control part is divided and is comprised:
Be symmetrically distributed in two storage batterys (10) on big disk (14);
Be placed in electric-controlled box (7), for the pitch controller driving pitching motor (22) drive lens case to follow the trail of the sun angle of pitch;
Be placed in electric-controlled box (7), follow the trail of the azimuth controller of solar azimuth for driving azimuth-drive motor (15) drive lens case;
Described storage battery (10) is connected with photovoltaic cell (27), described storage battery (10) exports electric energy for storing photovoltaic cell (27), and provides working power for pitch controller, azimuth controller, pitching motor (22) and azimuth-drive motor (15); Described pitch controller is connected with pitching motor (22); Described azimuth controller is connected with azimuth-drive motor (15).
2. the small-sized Fresnel concentrating solar power generation system of one according to claim 1, characterized by further comprising the light detecting tube (28) be arranged on casing (2), be placed in light detecting tube (28), for receiving sunlight and carrying out light sensor I and the light sensor II that opto-electronic conversion exports the signal of telecommunication corresponding to Intensity of the sunlight;
Described pitch controller is connected with light sensor II with light sensor I, the signal of telecommunication size that the Intensity of the sunlight exported respectively light sensor I and light sensor II is corresponding compares, and drives pitching motor (22) drive lens case to rotate until sunlight incident direction is vertical incidence to the direction of sun incidence.
3. the small-sized Fresnel concentrating solar power generation system of one according to claim 1, is characterized in that described photovoltaic cell (27) adopts multi-junction gallium arsenide solar cell.
4. the small-sized Fresnel concentrating solar power generation system of one according to claim 1, is characterized in that described underframe (13) is provided with criss-crossing reinforcing ribs (12); Described framework (6) is made up of angle steel; Described Timing Belt (19) adopts synchronous belt with trapezoid teeth; Described azimuth-drive motor (15) employing model is the DC toothed gearing electric motor of 37JB6K/33ZY24-1230; Described bearing (5) adopts 6008 deep groove ball bearings.
5. the small-sized Fresnel concentrating solar power generation system of one according to claim 1, is characterized in that described lower support cylinder (9) comprises lower shell (93), is separately positioned on upper disk (91) and the lower disc (92) at the upper and lower two ends of lower shell (93); Described lower disc (92) and big disk (14) are bolted; Described upper disk (91) is connected with mounting platform (8) bottom surface by bolt; The right angle that described lower disc (92) and lower shell (93) are formed is welded with at least 4 symmetrical gussets (11);
Described upper support tube (21) comprises upper shell (212), arranges the roundel (211) of upper shell (212) upper end, this roundel (211) and U-shaped support (25) bottom centre are bolted, and the right angle that described upper shell (212) and roundel (211) are formed is welded with at least 4 symmetrical gussets (11).
6. the small-sized Fresnel concentrating solar power generation system of one according to claim 1, it is characterized in that described Fresnel Lenses (1) has 4,4 described Fresnel Lenses (1) are fixed by the press strip (3) being arranged on casing (2) end face, and described Fresnel Lenses (1) and casing (2) form enclosed construction; Described photovoltaic cell (27) has 4, is installed on the bottom surface in casing (2); The sunlight of dispersion gathers on described photovoltaic cell (27) by described Fresnel Lenses (1).
7. the small-sized Fresnel concentrating solar power generation system of one according to claim 1, it is characterized in that described pitching motor (22) is fixed on U-shaped support (25) sidewall by electric machine support (23), this pitching motor (22) is connected with power transmission shaft (26) by shaft coupling (24); Described azimuth-drive motor (15) is installed on mounting platform (8) by bolt, and this azimuth-drive motor (15) rotating shaft drives small synchronous pulley (18) to rotate by reducing machine (17).
8. the small-sized Fresnel concentrating solar power generation system of one according to claim 1, is characterized in that described bearing pedestal (16) and bearing (5) interference fit; Described axle sleeve (20) and large synchronous pulley (4) interference fit.
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| CN201310409617.4A CN103475269B (en) | 2013-09-10 | 2013-09-10 | Small-size Fresnel concentrated solar power generation system |
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| CN201310409617.4A CN103475269B (en) | 2013-09-10 | 2013-09-10 | Small-size Fresnel concentrated solar power generation system |
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| CN103475269B true CN103475269B (en) | 2015-06-03 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319311A (en) * | 2014-10-10 | 2015-01-28 | 昆山诃德新能源科技有限公司 | High-concentration solar photoelectric receiver bonding and fixing device |
| CN105656400A (en) * | 2014-11-10 | 2016-06-08 | 哈尔滨聚吉轩科技开发有限公司 | Moveable solar power generation device |
| CN104993772B (en) * | 2015-07-09 | 2020-09-01 | 天淦溯纳新能源科技(上海)有限公司 | Gallium arsenide concentrating photovoltaic power generation system |
| CN105227105A (en) * | 2015-09-27 | 2016-01-06 | 成都聚合科技有限公司 | A kind of concentrating photovoltaic assembly column angle gusset plate |
| CN105471379A (en) * | 2016-01-13 | 2016-04-06 | 中国大唐集团科学技术研究院有限公司 | Solar power generation apparatus with automatic-sun-tracking function |
| CN107491100A (en) * | 2017-09-04 | 2017-12-19 | 上海理工大学 | Fresnel mirror beam condensing unit based on gradation of image analysis solar tracking |
| CN109743012A (en) * | 2019-03-13 | 2019-05-10 | 大连大学 | A kind of automatic orientation light condensing solar energy power generation device |
| CN110266264B (en) * | 2019-07-25 | 2024-04-16 | 西北工业大学 | Concentrating solar tower |
| CN111130444B (en) * | 2020-01-16 | 2024-07-16 | 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) | High-precision double-shaft solar tracking system and method for concentrating solar cell |
| CN117650665B (en) * | 2024-01-30 | 2024-04-02 | 深圳市昱森机电有限公司 | Steering motor for photovoltaic tracking bracket |
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| JPH0993820A (en) * | 1995-09-22 | 1997-04-04 | Omron Corp | Solar photovoltaic power generation system |
| CN202160132U (en) * | 2011-08-12 | 2012-03-07 | 尤长鹏 | Automatic tracking focus type solar concentrated photovoltaic power generation system |
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| JP4743161B2 (en) * | 2007-05-17 | 2011-08-10 | 株式会社デンソー | Vehicle power supply control device |
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| JPH0993820A (en) * | 1995-09-22 | 1997-04-04 | Omron Corp | Solar photovoltaic power generation system |
| CN202160132U (en) * | 2011-08-12 | 2012-03-07 | 尤长鹏 | Automatic tracking focus type solar concentrated photovoltaic power generation system |
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