CN204721289U - A kind of flexible solar battery pack - Google Patents
A kind of flexible solar battery pack Download PDFInfo
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- CN204721289U CN204721289U CN201520408394.4U CN201520408394U CN204721289U CN 204721289 U CN204721289 U CN 204721289U CN 201520408394 U CN201520408394 U CN 201520408394U CN 204721289 U CN204721289 U CN 204721289U
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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
Abstract
The utility model discloses a kind of flexible solar battery pack, comprise flexible solar battery, support, drive unit and control appliance, described drive unit is installed on described support, described drive unit is connected with described flexible solar battery, for driving described flexible solar battery with lighting angle generation deformation, described control appliance is for controlling described drive unit.The flexible solar battery pack that the utility model provides, without the need to light-chasing device, has the advantage that photoelectric conversion efficiency is high, low in energy consumption, cost is low.
Description
Technical field
The utility model relates to technical field of solar batteries, particularly relates to a kind of flexible solar battery pack that can be out of shape.
Background technology
Along with global energy crisis is day by day serious, people urgently wish the clean energy resource that can find a kind of sustainable development.Solar energy, as the inexhaustible natural energy source of one, receives global concern day by day.And solar photovoltaic generation system is exactly one of principal mode utilizing solar energy to develop, therefore solar panel arises at the historic moment.
As everyone knows, improve the opto-electronic conversion power of solar panel, first need to improve unit are solar panel to the amount of the absorption of light, and receive the effective area of cell panel of sunray, light application time and lighting angle, and cell panel material is correlated with.Under effective area and cell panel material the same terms, light application time and lighting angle are crucial variablees.But, although existing most flat-plate type solar cell plate volume is larger, but associate very little with the change of lighting angle to the absorption per unit area amount of light, although improve the absorption per unit area amount to light as the flat-plate type solar cell plate being provided with assembly of following spot, because the power consumption of assembly of following spot is large, cost is high, seriously restrict it and promote the use of.
Utility model content
For the defect of above-mentioned prior art and the technical problem of existence, the primary technical problem that the utility model solves is to provide a kind of flexible solar battery pack, this assembly can with lighting angle generation deformation, make the uptake of its unit are solar cell to light large, and without the need to light-chasing device, there is the advantage that photoelectric conversion efficiency is high, low in energy consumption, cost is low.
The technical scheme realizing above-mentioned purpose is:
A kind of flexible solar battery pack of the present utility model, comprise flexible solar battery, support, drive unit and control appliance, drive unit is installed on support, drive unit is connected with flexible solar battery, for driving flexible solar battery with lighting angle generation deformation, control appliance is used for accessory drive.
Of the present utility modelly to be characterized as further, control appliance comprises power supply, control circuit, sensor circuit, single-chip microcomputer and clock circuit, power supply is that control appliance is powered, single-chip microcomputer is connected respectively with clock circuit, control circuit, sensor circuit, and sensor circuit is connected with control circuit, control circuit is connected with drive unit.
Of the present utility modelly be characterized as further, flexible solar battery is spherical flexible solar cell.
Of the present utility modelly be characterized as further, also comprise reflection unit, reflection unit is arranged on support, and between the shady face and support of spherical flexible solar cell.
Of the present utility modelly be characterized as further, reflection unit is plane reflection equipment.
Of the present utility modelly be characterized as further, plane reflection equipment is level crossing.
Of the present utility modelly be characterized as further, reflection unit is concentrating device.
Of the present utility modelly be characterized as further, concentrating device is concave mirror.
Of the present utility modelly be characterized as further, the focus of concave mirror and the centre of sphere of spherical flexible solar cell are positioned at same point.
Of the present utility modelly be characterized as further, also comprise photoreceptor, photoreceptor is arranged on flexible solar battery, and photoreceptor is connected with control appliance.
Of the present utility modelly be characterized as further, photoreceptor is phototriode, light intensity sensor or photo resistance.
Of the present utility modelly be characterized as further, drive unit is electric pushrod, and one end of electric pushrod is connected with support, and outer surface or the inner surface of the other end and flexible solar battery are connected.
Of the present utility modelly be characterized as further, drive unit is hydraulic push rod, and one end of hydraulic push rod is connected with support, and outer surface or the inner surface of the other end and flexible solar battery are connected.
Of the present utility modelly be characterized as further, power supply is connected with flexible solar battery.
The utility model is owing to have employed above technical scheme, and making it have following beneficial effect is:
1, the flexible solar battery pack that provides of the technical program, owing to having drive unit and control appliance, control appliance is according to the different accessory drive work of lighting angle, and then flexible solar battery generation deformation, the utilance of flexible solar battery is improved greatly, unit are solar cell is large to the uptake of light, thus improves photoelectric conversion efficiency.
2, the flexible solar battery pack that provides of the technical program, compared with prior art, without any light-chasing device, therefore self work power consumption is very low, cost is low, and floor space is little, is beneficial to and promotes the use of.
3, the flexible solar battery pack that provides of the technical program, owing to having reflection unit, make the flexible solar battery of backlight one side can receive illumination equally, compared with prior art, the flexible solar battery pack taking same space size has larger light-receiving area, and operating efficiency is higher.
4, in the flexible solar battery pack that the technical program provides, flexible solar battery is spherical flexible solar cell, and the centre of sphere of the focus point of concave mirror and spherical flexible solar cell is same point, thus the sunlight through concave mirror reflection is all irradiated perpendicular to the direction of spherical flexible solar cell surface, substantially increase unit are solar cell large to the uptake of light, and then improve the photoelectric conversion efficiency of the technical program.
5, the flexible solar battery pack that provides of the technical program, owing to having photoreceptor, the lighting angle that control appliance collects according to photoreceptor or strength information, automatically controlled actuating device drives flexible solar battery generation deformation, thus the flexible solar battery pack making the technical program provide operationally, remain that very high photoelectricity dress changes efficiency.
6, the drive unit in the flexible solar battery pack that provides of the technical program is electric pushrod or hydraulic push rod, and not only precision is high, volume is little for this drive unit, lightweight, and power consumption is very low.
Accompanying drawing explanation
Fig. 1 is embodiment one structural representation of a kind of flexible solar battery pack of the utility model;
Fig. 2 is the control appliance structural representation of a kind of flexible solar battery pack of the utility model;
Fig. 3 is embodiment two structural representation of a kind of flexible solar battery pack of the utility model;
Fig. 4 is embodiment three structural representation of a kind of flexible solar battery pack of the utility model;
Fig. 5 is embodiment four structural representation of a kind of flexible solar battery pack of the utility model;
Fig. 6 is panel solar cell panel operation principle schematic diagram;
Fig. 7 is the operation principle schematic diagram of the panel solar cell panel with one dimension light-chasing device;
Fig. 8 is spherical flexible solar cell working principle schematic;
Fig. 9 is the spherical flexible solar cell working principle schematic with light-chasing device;
Figure 10 is spherical flexible solar cell deformation operation principle schematic.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
As depicted in figs. 1 and 2, a kind of flexible solar battery pack, comprise flexible solar battery 1, support 2, drive unit 3 and control appliance 4, drive unit 3 is installed on support 2, and drive unit 3 is connected with flexible solar battery 1, for driving flexible solar battery 1 with lighting angle generation deformation, control appliance 4 is for accessory drive 3.
Wherein, control appliance 4 comprises power supply 41, control circuit 42, sensor circuit 43, single-chip microcomputer 44 and clock circuit 45, power supply 41 is powered for control appliance 4 entirety, this power supply 41 is storage battery or is civil power, single-chip microcomputer 44 is connected respectively with clock circuit 45, control circuit 42, sensor circuit 43, and sensor circuit 43 is connected with control circuit 42, control circuit 42 is connected with drive unit 3, for drive unit 3 provides drive singal.And in the present embodiment, drive unit 3 is electric pushrod.Drive unit 3 is the driving arrangement of electric pushrod or the motion of hydraulic push rod isoline.
The flexible solar battery pack that the present embodiment provides operationally, a time interval is preset with in clock circuit 45 in control appliance 4, often reach a time interval, clock circuit 45 sends to single-chip microcomputer 44 1 clock signals, further, single-chip microcomputer 44 sends control signals to control circuit 42, and control circuit 42 controls electric pushrod further and elongates or shortens, to guarantee the sensitive surface gross area reception illumination as far as possible of flexible solar battery 1.Sensor circuit 43 is responsible for when electric pushrod moves to distalmost end or most proximal end to single-chip microcomputer 44 1 signals.
Embodiment two
As shown in Figures 2 and 3, a kind of flexible solar battery pack, comprise flexible solar battery 1, support 2, drive unit 3 and control appliance 4, drive unit 3 is installed on support 2, and drive unit 3 is connected with flexible solar battery 1, for driving flexible solar battery 1 with lighting angle generation deformation, control appliance 4 is for accessory drive 3.
Wherein, control appliance 4 comprises power supply 41, control circuit 42, sensor circuit 43, single-chip microcomputer 44 and clock circuit 45, power supply 41 is powered for control appliance 4 entirety, this power supply 41 is storage battery or is civil power, single-chip microcomputer 44 is connected respectively with clock circuit 45, control circuit 42, sensor circuit 43, and sensor circuit 43 is connected with control circuit 42, control circuit 42 is connected with drive unit 3, for drive unit 3 provides drive singal.Drive unit 3 is the driving arrangement of electric pushrod or the motion of hydraulic push rod isoline.
Particularly, in the present embodiment, flexible solar battery 1 is spherical flexible solar cell, drive unit 3 is electric pushrod, and electric pushrod is two, all be arranged at the outside of spherical flexible solar cell, one end of two electric pushrods is fixedly connected with support 2 respectively, the other end all by bar shaped contiguous block 31 level connection joint in the two ends of spherical flexible solar cell outer surface.
Also comprise reflection unit 5, reflection unit 5 is arranged on support 2, and this reflection unit 5 is between the shady face and support 2 of spherical flexible solar cell, in the present embodiment, reflection unit 5 is level crossing, ice and snow face or other there is the plane reflection equipment of minute surface.
The flexible solar battery pack that the present embodiment provides operationally, a time interval is preset with in clock circuit 45 in control appliance 4, often reach a time interval, clock circuit 45 sends to single-chip microcomputer 44 1 clock signals, further, single-chip microcomputer 44 sends control signals to control circuit 42, control circuit 42 controls electric pushrod further and elongates or shortens, make spherical flexible solar cell repeated deformation between vertical flat, spherical, horizontal flat shape, with the sensitive surface guaranteeing flexible solar battery 1 as far as possible gross area receive illumination.Sensor circuit 43 is responsible for when electric pushrod moves to distalmost end or most proximal end to single-chip microcomputer 44 1 signals.Be specially ground, spherical flexible solar cell is the flat of vertical direction when not having External Force Acting.During morning, the spherical flexible solar cell that sunlight horizontal sheaf is vertically flat; The upper period of the day from 11 a.m. to 1 p.m, sunlight irradiates obliquely, and two electric pushrods shrink respectively to outside, is stretched as spherical by the vertically flat spherical flexible solar cell of script; Noon, sunlight is incident vertically downward, and electric pushrod continues to shrink laterally, by horizontally disposed strip contiguous block, spherical flexible solar cell is stretched as the flat of level.
Embodiment three
As shown in Figure 2 and Figure 4, a kind of flexible solar battery pack, comprise flexible solar battery 1, support 2, drive unit 3 and control appliance 4, drive unit 3 is installed on support 2, and drive unit 3 is connected with flexible solar battery 1, for driving flexible solar battery 1 with lighting angle generation deformation, control appliance 4 is for accessory drive 3.
Wherein, control appliance 4 comprises power supply 41, control circuit 42, sensor circuit 43, single-chip microcomputer 44 and clock circuit 45, power supply 41 is powered for control appliance 4 entirety, this power supply 41 is connected with flexible solar battery 1, the electric energy that flexible solar battery 1 produces is supplied to power supply 41, single-chip microcomputer 44 is connected respectively with clock circuit 45, control circuit 42, sensor circuit 43, and sensor circuit 43 is connected with control circuit 42, control circuit 42 is connected with drive unit 3, for drive unit 3 provides drive singal.Drive unit 3 is the driving arrangement of electric pushrod or the motion of hydraulic push rod isoline.
Particularly, in the present embodiment, flexible solar battery 1 is spherical flexible solar cell, drive unit 3 is electric pushrod, and electric pushrod is two, all be arranged at the outside of spherical flexible solar cell, one end of two electric pushrods is fixedly connected with support 2 respectively, the other end all by bar shaped contiguous block 31 level connection joint in the two ends of spherical flexible solar cell outer surface.
The flexible solar battery pack that the present embodiment provides also comprises reflection unit 5, reflection unit 5 is arranged on support 2, and this reflection unit 5 is between spherical flexible solar cell backlight face and support 2, reflection unit 5 is the concentrating device that concave mirror etc. has optically focused effect, in the present embodiment, reflection unit 5 is concave mirror, and the centre of sphere of the focus of concave mirror and spherical flexible solar cell is positioned in same point, thus the sunlight be irradiated on concave mirror, make all to irradiate perpendicular to the direction of the spherical flexible solar cell surface of shady face after concave mirror reflection.
The flexible solar battery pack that the present embodiment provides also comprises multiple photoreceptor 6, multiple photoreceptor 6 is arranged on the outer surface of flexible solar battery 1 equably, and photoreceptor 6 is connected with control appliance 4, photoreceptor 6 is any one in phototriode, light intensity sensor or photo resistance.
The flexible solar battery pack that the present embodiment provides operationally, the information such as lighting angle or light intensity that control appliance 4 gathers according to photoreceptor 6, transmit control signal to control circuit 42, control circuit 42 controls electric pushrod further and elongates or shortens, make spherical flexible solar cell repeated deformation between vertical flat, spherical, horizontal flat shape, with the sensitive surface guaranteeing flexible solar battery 1 as far as possible gross area receive illumination.Sensor circuit 43 is responsible for when electric pushrod moves to distalmost end or most proximal end to single-chip microcomputer 44 1 signals.Be specially ground, spherical flexible solar cell is the flat of vertical direction when not having External Force Acting.During morning, the spherical flexible solar cell that sunlight horizontal sheaf is vertically flat; The upper period of the day from 11 a.m. to 1 p.m, sunlight irradiates obliquely, and two electric pushrods shrink respectively to outside, is stretched as spherical by the vertically flat spherical flexible solar cell of script; Noon, sunlight is incident vertically downward, and electric pushrod continues to shrink laterally, by horizontally disposed strip contiguous block, spherical flexible solar cell is stretched as the flat of level.
Embodiment four
As shown in Figure 2 and Figure 5, a kind of flexible solar battery pack, comprise flexible solar battery 1, support 2, drive unit 3 and control appliance 4, drive unit 3 is installed on support 2, and drive unit 3 is connected with flexible solar battery 1, for driving flexible solar battery 1 with lighting angle generation deformation, control appliance 4 is for accessory drive 3.
Wherein, control appliance 4 comprises power supply 41, control circuit 42, sensor circuit 43, single-chip microcomputer 44 and clock circuit 45, power supply 41 is powered for control appliance 4 entirety, this power supply 41 is storage battery or civil power, the electric energy that flexible solar battery 1 produces is supplied to power supply 41, single-chip microcomputer 44 is connected respectively with clock circuit 45, control circuit 42, sensor circuit 43, and sensor circuit 43 is connected with control circuit 42, control circuit 42 is connected with drive unit 3, for drive unit 3 provides drive singal.Drive unit 3 is the driving arrangement of electric pushrod or the motion of hydraulic push rod isoline.
Particularly, in the present embodiment, flexible solar battery 1 is spherical flexible solar cell, drive unit 3 is electric pushrod, and electric pushrod is two, is all arranged at the inside of spherical flexible solar cell, one end of two electric pushrods is fixedly connected with support 2 respectively, the other end all by bar shaped contiguous block 31 level connection joint in the inner surface of spherical flexible solar cell, and two electric pushrods are positioned on the straight line of the spherical flexible solar cell centre of sphere.
The flexible solar battery pack that the present embodiment provides also comprises reflection unit 5, reflection unit 5 is arranged on support 2, and this reflection unit 5 is between spherical flexible solar cell backlight face and support 2, reflection unit 5 is the concentrating device that concave mirror etc. has optically focused effect, in the present embodiment, reflection unit 5 is concave mirror, and the centre of sphere of the focus of concave mirror and spherical flexible solar cell is positioned in same point, thus the sunlight be irradiated on concave mirror, make all to irradiate perpendicular to the direction of the spherical flexible solar cell surface of shady face after concave mirror reflection.
The flexible solar battery pack that the present embodiment provides also comprises multiple photoreceptor 6, multiple photoreceptor 6 is arranged on the outer surface of flexible solar battery 1 equably, and photoreceptor 6 is connected with control appliance 4, photoreceptor 6 is any one in phototriode, light intensity sensor or photo resistance.
The flexible solar battery pack that the present embodiment provides operationally, the information such as lighting angle or light intensity that control appliance 4 gathers according to photoreceptor 6, transmit control signal to control circuit 42, control circuit 42 controls electric pushrod further and elongates or shortens, make spherical flexible solar cell repeated deformation between vertical flat, spherical, horizontal flat shape, with the sensitive surface guaranteeing flexible solar battery 1 as far as possible gross area receive illumination.Sensor circuit 43 is responsible for when electric pushrod moves to distalmost end or most proximal end to single-chip microcomputer 44 1 signals.Be specially ground, spherical flexible solar cell is the flat of horizontal direction when not having External Force Acting.During morning, the spherical flexible solar cell that sunlight horizontal sheaf is vertically flat; The upper period of the day from 11 a.m. to 1 p.m, sunlight irradiates obliquely, and two electric pushrods shrink respectively to outside, is stretched as spherical by the vertically flat spherical flexible solar cell of script; Noon, sunlight is incident vertically downward, and electric pushrod continues to shrink laterally, by horizontally disposed strip contiguous block, spherical flexible solar cell is stretched as the flat of level.
The technical program and prior art are carried out detailed comparisons below, further illustrate the beneficial effect of the technical program:
One, the calculating of the vertical area of illumination
1, panel solar cell panel of the prior art
As shown in Figure 6, suppose that AB is panel solar cell panel, its area is S, AB and horizon angle is α.
Situation 1: when sunlight is parallel with horizon, sunlight is OA in solar panel AB vertical irradiation face, then vertical irradiation area=s × sin α; Situation 2: when sunlight is vertical with solar panel, sunlight is exactly S at solar panel AB vertical irradiation area; Situation 3: when sunlight is vertical with horizon, sunlight is OA in solar panel AB vertical irradiation face, then vertical irradiation area=s × cos α.
Suppose α=60 °, then the solar irradiation of three kinds of situations is mapped to the vertical irradiation area of panel solar cell panel and is:
2, there is in prior art the panel solar cell panel of one dimension light-chasing device
As shown in Figure 7, to follow spot situation around the one dimension of Y-axis:
Supposing that panel solar cell panel area is S, is α with horizon angle.
Namely when α=45 degree, sun direct projection area is to the maximum
Then average shot area is the whole day unit interval
3, spherical flexible solar panel
As shown in Figure 8, spherical cell panel has the large advantage of sunlight contact surface area, and regardless of sun irradiation angle, all can the long-pending half of direct irradiation spherome surface, and by selecting reflecting medium to carry out maximum using solar energy.Supposing that sunlight can direct irradiation scope be upper left hemisphere AMB, can reflected range be bottom right hemisphere ANB.Wherein light AC and light BD is the parallel tangents of ball.
Step 1: the half of direct irradiation of sunlight spherome surface at any angle, supposes that radius of sphericity is R, then shine directly into long-pending=2 π R of spherome surface
2; As supposed, reverberation is completely contrary with direct light direction, in the ideal situation, and when indirect reference is amassed maximum to spherome surface=2 π R
2.
Step 2: the effective area of sunlight direct projection is area==π R that the absorbable part surface of solar panel amassed=justified AOB
2, be the half of solar light irradiation area, namely the effective ratio of sun direct projection is 50%.
Conclusion 1: by more above-mentioned three kinds of solar cells, spherical flexible solar panel is without the need to using light-chasing device, and be namely equivalent to a real-time and sunlight direct projection plane solar energy cell panel, practical efficiency is higher and stable.
4, the spherical flexible solar cell that the utility model adopts adds reflection unit
As shown in Figure 8, spheroid solar energy direct projection face AMB is the half of spherical cell panel, and solar absorptance is 100%; Solar energy reflection face ANB is also the half of spherical cell panel.Solar absorptance depends on the refractive index of reflecting surface, is determined by the material behavior of reflecting surface, and suppose that the reflectivity of reflecting surface is δ, then the effective ratio of reverberation direct projection is δ * 50%, and the surface area of spherical flexible solar cell is S.
Solar energy direct projection effective area is: (1+ δ) * 50%*S;
Solar absorptance=(1+ δ) * 50% that solar panel is total;
The direct projection ratio of the sun is 50%, then Solar use efficiency eta=(1+ δ) * 50%.
Situation 1: if select flint glass as reflecting medium, the visible reflectance of Plain glass about 8 ~ 10%, i.e. utilization ratio=54% ~ 55% of now solar panel.
Situation 2: if select snow as reflecting medium, the reflectivity of snow about 80 ~ 90%, i.e. utilization ratio=90% ~ 95% of now solar panel.
Situation 3: if select ice as reflecting medium, the reflectivity of ice about 60 ~ 70%, i.e. utilization ratio=80% ~ 85% of now solar panel.
Situation 4: if select using minute surface as reflecting medium, reflectivity is about 85 ~ 90%, and silvered glass can reach 95%, and novel nano mirror can reach 99.9%, and the utilance of solar panel is now close to 100%.
Conclusion: according to above-mentioned analysis and calculation, under equal sunshine condition, supposes for flat light-chasing device, suppose to there is not the energy consumption driven needed for cell panel, and do not consider due to time and seasonal variations, altitude of the sun and angle change cause the path driven to increase, and energy consumption increases; Suppose for spheroid beam condensing unit, the shadow problem in various degree do not considered to reflect rear overlap and cause due to distance and the speculum area of speculum and spheroid, then have: the spherical flexible solar panel of same area, adopt the dull and stereotyped solar photovoltaic utilization rate of formula solar cell lower than spherical flexible solar cell addition polymerization equipment of following spot; Under the natural conditions such as natural snowfield, ice face, without the need to additionally increasing reflection unit, the utilance of light can be significantly improved, table specific as follows:
Two, photoelectric conversion efficiency calculates
Scheme 1, flat board are followed spot the overall photoelectric conversion efficiency theory calculate of scheme:
As shown in Figure 7, consider the deadweight of flat plate cell and the complexity of structure of following spot and cost, the followed spot angle of the flat plate cell light tracing system of practical application is +/-about 30 °.
Then the dull and stereotyped opto-electronic conversion energy chased after can pass through as shown in the formula calculating:
A is dull and stereotyped photronic surface area, is a constant basis, e
loss 1for the distortion electric energy loss of system, η 1 is the photoelectric conversion efficiency of hull cell, and φ can be expressed as:
φ
maxbe the dull and stereotyped maximum angle that can turn herein,
the T light irradiation time of a day.
Scheme 2, spheroid optically focused add the overall photoelectric conversion efficiency theory calculate of scheme of following spot:
As shown in Figure 9, the analytic expression of spheroid is: x
2+ y
2+ z
2=r
2
Therefore the normal vector of any point of spheroid can be expressed as:
The direction vector of incident ray is:
w is a solar constant, then:
D：x
2+z
2＝r
2
Above formula resolve to 4/3w π r2, the power therefore after opto-electronic conversion is 4/3w π r2 η 2-e
damage consumption 2.
The overall photoelectric conversion efficiency theory calculate of scheme 3, spherical cell deformation scheme:
As shown in Figure 10, because the integration of the surface normal of ellipsoid and the incident direction of light comprises implicit function, therefore calculating to simplify overall efficiency conversion, the approximate replacement of illumination cross-sectional area can be used.
If constant in one day of light energy, be a solar constant w, the direction vector of incident ray is:
D is the Analytical Expression of non-circular cross-section, then:
W is a solar constant, and a is the minor axis length of oval cross section, a
maxfor maximum minor axis length, the T light irradiation time of a day, θ is the angle of angle of incidence of light and x-axis, can find out that a and θ is the function of time, e
loss 3for the distortion electric energy loss of system, η 3 is the photoelectric conversion efficiency of hull cell.C is the long axis length of non-circular cross-section, can represent with following formula:
c＝3A/4πa-2a
Wherein A is the surface area of ellipsoid, is a constant basis.
Can draw from above-mentioned calculating: when identical table area, the efficiency flat board of three kinds of schemes is followed spot the highest, and plastic deformation is taken second place, and circle is followed spot finally, but the energy of dull and stereotyped required loss of following spot is maximum simultaneously, has energy loss hardly both all the other.Therefore efficiency is summarized as follows table:
| Scheme 1 | Scheme 2 | Scheme 3 | |
| Photoelectric conversion efficiency | 25％ | 18％ | 18％ |
| Whole efficiency (normalization) | 1 | 0.68 | 0.73 |
The highest in whole efficiency upper flat plate scheme of following spot, but the size that scheme 2 and scheme 3 take up space will be far smaller than scheme 1 (to when young 50%), and the whole efficiency of the scheme 3 therefore under identical occupation of land special case is higher than scheme 1.
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations example to the utility model according to the above description.Thus, some details in embodiment should not formed restriction of the present utility model, the utility model by the scope that defines using appended claims as protection range of the present utility model.
Claims (14)
1. a flexible solar battery pack, it is characterized in that: comprise flexible solar battery, support, drive unit and control appliance, described drive unit is installed on described support, and described drive unit is connected with described flexible solar battery, for driving described flexible solar battery with lighting angle generation deformation, described control appliance is for controlling described drive unit.
2. a kind of flexible solar battery pack according to claim 1, it is characterized in that: described control appliance comprises power supply, control circuit, sensor circuit, single-chip microcomputer and clock circuit, described power supply is that control appliance is powered, described single-chip microcomputer is connected respectively with clock circuit, control circuit, sensor circuit, and described sensor circuit is connected with control circuit, described control circuit is connected with drive unit.
3. a kind of flexible solar battery pack according to claim 1, is characterized in that: described flexible solar battery is spherical flexible solar cell.
4. a kind of flexible solar battery pack according to claim 3, is characterized in that: also comprise reflection unit, and described reflection unit is arranged on support, and between the shady face and described support of described spherical flexible solar cell.
5. a kind of flexible solar battery pack according to claim 4, is characterized in that: described reflection unit is plane reflection equipment.
6. a kind of flexible solar battery pack according to claim 5, is characterized in that: described plane reflection equipment is level crossing.
7. a kind of flexible solar battery pack according to claim 4, is characterized in that: described reflection unit is concentrating device.
8. a kind of flexible solar battery pack according to claim 7, is characterized in that: described concentrating device is concave mirror.
9. a kind of flexible solar battery pack according to claim 8, is characterized in that: the focus of described concave mirror and the centre of sphere of described spherical flexible solar cell are positioned at same point.
10. a kind of flexible solar battery pack according to claim 1, is characterized in that: also comprise photoreceptor, and described photoreceptor is arranged on described flexible solar battery, and described photoreceptor is connected with described control appliance.
11. a kind of flexible solar battery packs according to claim 10, is characterized in that: described photoreceptor is phototriode, light intensity sensor or photo resistance.
12. according to a kind of flexible solar battery pack in claim 1-11 described in any one, it is characterized in that: described drive unit is electric pushrod, and one end of described electric pushrod is connected with described support, outer surface or the inner surface of the other end and described flexible solar battery are connected.
13. according to a kind of flexible solar battery pack in claim 1-11 described in any one, it is characterized in that: described drive unit is hydraulic push rod, and one end of described hydraulic push rod is connected with described support, outer surface or the inner surface of the other end and described flexible solar battery are connected.
14. a kind of flexible solar battery packs according to claim 2, is characterized in that: described power supply is connected with described flexible solar battery.
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| CN201520408394.4U CN204721289U (en) | 2015-06-12 | 2015-06-12 | A kind of flexible solar battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917449A (en) * | 2015-06-12 | 2015-09-16 | 陈惠远 | Flexible solar cell module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917449A (en) * | 2015-06-12 | 2015-09-16 | 陈惠远 | Flexible solar cell module |
| WO2016197879A1 (en) * | 2015-06-12 | 2016-12-15 | 陈惠远 | Flexible solar cell assembly |
| CN104917449B (en) * | 2015-06-12 | 2017-03-08 | 陈惠远 | A kind of flexible solar battery pack |
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