CN104348407A - Multi-reflection optically focused photovoltaic power generation system - Google Patents
Multi-reflection optically focused photovoltaic power generation system Download PDFInfo
- Publication number
- CN104348407A CN104348407A CN201310312975.3A CN201310312975A CN104348407A CN 104348407 A CN104348407 A CN 104348407A CN 201310312975 A CN201310312975 A CN 201310312975A CN 104348407 A CN104348407 A CN 104348407A
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- Prior art keywords
- photovoltaic power
- power generating
- generating system
- multiple reflections
- light gathering
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- 238000010248 power generation Methods 0.000 title abstract description 5
- 230000011514 reflex Effects 0.000 claims description 25
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
-
- 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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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a multi-reflection optically focused photovoltaic power generation system. The system comprises a reflection module and a tracking module. The reflection module comprises a first-order reflector, a second-order reflector, a first-order reflector support, a second-order reflector support and a photovoltaic battery. The tracking module comprises a fixing device, a controller and a tracking device. The first-order reflector is installed on the first-order reflector support, the second-order reflector is installed at the focus of the first-order reflector through the second-order reflector support, and the photovoltaic battery is installed at the focus of the second-order reflector support. According to the invention, through a simple two -reflection structure, the concentration multiple is improved, the manufacture is simple, the tracking control precision requirement is quite low, the system stability is good, and the cost performance of a power generation capacity to cost is high.
Description
Technical field
The present invention relates to a kind of electricity generation system, particularly a kind of multiple reflections light gathering photovoltaic power generating system.
Background technology
Solar energy power generating is using photovoltaic module as power conversion device, and solar energy is converted to electric energy, and photovoltaic module is used widely as a kind of novel energy.Large quantity research shows, light gathering photovoltaic power generating system comparatively conventional photovoltaic electricity generation system cost of electricity-generating is low, and the cost of electricity-generating namely in life cycle is low, and land use area is few, efficiency advantages of higher.
Common concentrating photovoltaic power generation device is a multiple high power concentrator assembly of sun tracker, realizes the focusing to the sun., concentrating solar unit is supported by a thicker metal cylinder, and metal cylinder is arranged on concrete pedestal.
The shortcoming of above-mentioned solar energy high power focusing photovoltaic Blast Furnace Top Gas Recovery Turbine Unit (TRT) is: high power concentrator assembly adopts Fresnel Lenses principle to make, high to the processing cost of Fresnel Lenses, namely needs the light concentrating times that reaches larger, processes Fresnel Lenses more difficult; Tracing control required precision is high, and need direct sunlight to work completely, high power concentrator component failures probability is high.
Summary of the invention
Goal of the invention: the high zoom and focus electricity generation system cost that the object of the invention is to solve prior art is high, and processing difficulties, tracking accuracy requires high problem.
Technical scheme: the invention provides following technical scheme: a kind of multiple reflections light gathering photovoltaic power generating system, comprises reflecting module and tracking module.
As optimization, described reflecting module comprises first order reflection mirror, secondary reflex mirror, first order reflection mirror support, secondary reflex mirror support and photovoltaic cell.
As optimization, described tracking module comprises fixture, controller and tracking means.
As optimization, described fixture comprises concrete foundation and column.
As optimization, described tracking means comprises East and West direction tracking means and north-south tracking means.
As optimization, described first order reflection mirror is arranged on first order reflection mirror support, and secondary reflex mirror is arranged on first order reflection mirror foci place by secondary reflex mirror support, and photovoltaic cell is arranged on the focus place of secondary reflex mirror support.
As optimization, described photovoltaic cell comprises high-efficiency photovoltaic battery and high-efficiency heat pipe radiator.
As optimization, described secondary reflex mirror is made up of super-white silver mirror.
Operation principle: light converges on a small pieces photovoltaic cell through two secondary mirror reflections by sunlight, and sunlight light concentrating times after two secondary reflections reaches 1500 times, namely adds the energy output of 1500 times; Whole reflection dress
Put and be arranged on a tracking means, tracking means adopts controller, controls north-south and East and West direction two azimuths of reflection unit, achieves the full-time tracking focusing function to the sun.
Beneficial effect: the present invention compared with prior art: the present invention adopts multistage light condensing technology, increases light concentrating times, improves energy output, adopts active tracking, only need input the longitude and latitude of this device, can from the motion tracking sun.The present invention improves light concentrating times by simple twice catoptric arrangement, and make simple, tracing control required precision is lower, and the stability of a system is good, and energy output is higher than cost cost performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of photovoltaic cell of the present invention.
Embodiment
A multiple reflections light gathering photovoltaic power generating system as shown in Figure 1, comprises reflecting module 1 and tracking module 2.Described reflecting module comprises first order reflection mirror 11, secondary reflex mirror 13, first order reflection mirror support 15, secondary reflex mirror support 12 and photovoltaic cell 14.Described tracking module comprises fixture 3, controller 23 and tracking means 4.Described fixture 3 comprises concrete foundation 21 and column 22.Described tracking means comprises East and West direction tracking means 24 and north-south tracking means 25.Described first order reflection mirror 11 to be arranged on first order reflection mirror support 15, and secondary reflex mirror 13 is arranged on first order reflection mirror 11 focus place by secondary reflex mirror support 12, and photovoltaic cell 14 is arranged on the focus place of secondary reflex mirror support.Described first order reflection mirror 11 resolves into several piece sector mirror, and sector mirror can become into certain arc by the ultra-thin silver mirror of a plane sector ultrawhite through first order reflection mirror support 15 extruding, the corresponding different focusing multiple of different radian and distance of feeling terribly worried; Also can form a class arc by the ultra-thin silver mirror of plane ultrawhite that several piece is little, the processing of this structure is comparatively simple, but focusing on multiple, comparatively to go up person low.Described secondary reflex mirror 13 is made up of super-white silver mirror.Described photovoltaic cell 14 comprises high-efficiency photovoltaic battery 141 and high-efficiency heat pipe radiator 142, high-efficiency photovoltaic battery 141 adopts third generation battery technology conventional in the market, i.e. III-V compounds of group battery of many knots, it has the advantages such as large spectral absorption, high conversion efficiency.In order to reduce the temperature of high-efficiency photovoltaic battery 141, be provided with high-efficiency heat pipe radiator 142 at high-efficiency photovoltaic battery 141 back, high-efficiency heat pipe radiator 142 is made up of heat-pipe radiator, the conventional aluminium flake radiator of customer service to high temperature heat radiation not in time with unequal problem.
The whole power generation process of multiple reflections light gathering photovoltaic power generating system of the present invention is as follows, the sunlight of incidence is reflected on secondary reflex mirror 13 by first order reflection mirror 11, sunlight is reflexing on photovoltaic cell 14 by secondary reflex mirror 13, carry out photovoltaic generation, first order reflection mirror 11 light concentrating times is 50 times, secondary reflex mirror 13 light concentrating times is 30 times, the focusing amplification coefficient of whole system reaches 1500 times, namely solar radiation value has been exaggerated 1500 times, be equivalent to photovoltaic cell area and add 1500 times, energy output is increased to 1500 times.In order to increase multiplication factor again, can increase by lens between secondary reflex mirror 13 and photovoltaic module 14; First order reflection mirror 11, secondary reflex mirror 13 are made up of super-white silver mirror, reflectivity reaches more than 97%, mirror support 15 adopts grid structure, first order reflection mirror 11 is fixed on tracking module 2, secondary reflex mirror support 12 adopts steel-tube construction that secondary reflex mirror 13 is fixed on first order reflection mirror 11 focus place, and photovoltaic cell 14 is at the focus place of secondary reflector 13.Whole reflection unit 1 is arranged on column 22, and column 22 adopts anchor bolt to be arranged in concrete foundation 21; Tracking module 2 moment ensures that direct sunlight is to first order reflection mirror 11, it comprises East and West direction tracking means 24 and north-south tracking means 25, East and West direction tracking means 24 adopts motor-Worm Wheel System system, the east-west direction being responsible for reflection unit 1 rotates, north-south tracking means 25 adopts motor-screw rod transmission system, and the North and South direction being responsible for reflection unit 1 rotates; Controller 23 adopts active tracking system, the longitude and latitude number of degrees on cuit ground, systems soft ware calculates the running orbit of tracking means 2 automatically, control East and West direction tracking means 24 and north-south tracking means 25 action, from the motion tracking sun, because first order reflection mirror 11 adopts continuous globoidal structure, degree of focus is high, and therefore tracing control required precision is lower.
The present invention adopts multistage light condensing technology, increases light concentrating times, improves energy output, adopts active tracking, only need input the longitude and latitude of this device, can from the motion tracking sun.The present invention improves light concentrating times by simple twice catoptric arrangement, and make simple, tracing control required precision is lower, and the stability of a system is good, and energy output is higher than cost cost performance.
Claims (8)
1. a multiple reflections light gathering photovoltaic power generating system, is characterized in that: comprise reflecting module and tracking module.
2. multiple reflections light gathering photovoltaic power generating system according to claim 1, is characterized in that: described reflecting module comprises first order reflection mirror, secondary reflex mirror, first order reflection mirror support, secondary reflex mirror support and photovoltaic cell.
3. multiple reflections light gathering photovoltaic power generating system according to claim 2, is characterized in that: described tracking module comprises fixture, controller and tracking means.
4. multiple reflections light gathering photovoltaic power generating system according to claim 3, is characterized in that: described fixture comprises concrete foundation and column.
5. multiple reflections light gathering photovoltaic power generating system according to claim 4, is characterized in that: described tracking means comprises East and West direction tracking means and north-south tracking means.
6. multiple reflections light gathering photovoltaic power generating system according to claim 5, it is characterized in that: described first order reflection mirror is arranged on first order reflection mirror support, secondary reflex mirror is arranged on first order reflection mirror foci place by secondary reflex mirror support, and photovoltaic cell is arranged on the focus place of secondary reflex mirror support.
7. multiple reflections light gathering photovoltaic power generating system according to claim 6, is characterized in that: described photovoltaic cell comprises high-efficiency photovoltaic battery and high-efficiency heat pipe radiator.
8. multiple reflections light gathering photovoltaic power generating system according to claim 7, is characterized in that: described secondary reflex mirror is made up of super-white silver mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312975.3A CN104348407A (en) | 2013-07-24 | 2013-07-24 | Multi-reflection optically focused photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312975.3A CN104348407A (en) | 2013-07-24 | 2013-07-24 | Multi-reflection optically focused photovoltaic power generation system |
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|---|---|
| CN104348407A true CN104348407A (en) | 2015-02-11 |
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| CN201310312975.3A Pending CN104348407A (en) | 2013-07-24 | 2013-07-24 | Multi-reflection optically focused photovoltaic power generation system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098112A (en) * | 2006-06-29 | 2008-01-02 | 中国科学技术大学 | Self-radiation solar energy accumulation type photovoltaic generator |
| CN101976973A (en) * | 2010-10-09 | 2011-02-16 | 张国柱 | Controllable double-state light-reflecting and light-condensing solar heat-collecting generating device |
| CN201830174U (en) * | 2010-09-10 | 2011-05-11 | 东莞市和信玻璃有限公司 | Parabolic-mirror secondary high-concentration photovoltaic and photo-thermoelectric integrated device |
| CN102103258A (en) * | 2011-02-25 | 2011-06-22 | 浙江大学 | Dish condensation-based solar energy secondary condensation frequency division method and device |
| CN102263526A (en) * | 2010-05-27 | 2011-11-30 | 茂杰光电有限公司 | Solar power system with high concentrating ratio |
| CN203813729U (en) * | 2013-07-24 | 2014-09-03 | 国电光伏有限公司 | Multiple-reflection concentrating photovoltaic power generation system |
-
2013
- 2013-07-24 CN CN201310312975.3A patent/CN104348407A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098112A (en) * | 2006-06-29 | 2008-01-02 | 中国科学技术大学 | Self-radiation solar energy accumulation type photovoltaic generator |
| CN102263526A (en) * | 2010-05-27 | 2011-11-30 | 茂杰光电有限公司 | Solar power system with high concentrating ratio |
| CN201830174U (en) * | 2010-09-10 | 2011-05-11 | 东莞市和信玻璃有限公司 | Parabolic-mirror secondary high-concentration photovoltaic and photo-thermoelectric integrated device |
| CN101976973A (en) * | 2010-10-09 | 2011-02-16 | 张国柱 | Controllable double-state light-reflecting and light-condensing solar heat-collecting generating device |
| CN102103258A (en) * | 2011-02-25 | 2011-06-22 | 浙江大学 | Dish condensation-based solar energy secondary condensation frequency division method and device |
| CN203813729U (en) * | 2013-07-24 | 2014-09-03 | 国电光伏有限公司 | Multiple-reflection concentrating photovoltaic power generation system |
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Application publication date: 20150211 |