CN201936194U - Sunlight automatic tracking condensation device based on double paraboloids - Google Patents
Sunlight automatic tracking condensation device based on double paraboloids Download PDFInfo
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- CN201936194U CN201936194U CN2011200357839U CN201120035783U CN201936194U CN 201936194 U CN201936194 U CN 201936194U CN 2011200357839 U CN2011200357839 U CN 2011200357839U CN 201120035783 U CN201120035783 U CN 201120035783U CN 201936194 U CN201936194 U CN 201936194U
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Abstract
The utility model discloses a sunlight automatic tracking condensation device based on double paraboloids. The concave surfaces of a large paraboloid and a small paraboloid are opposite, and moreover, the normal axes of the two paraboloids are on the same straight line, and focal points or focal lines of the two paraboloids coincide; an infrared filter is placed on the focal points of the two paraboloids or near the focal points; the concave surface sides of a large parabolic reflecting surface and a small parabolic reflecting surface are respectively provided with a dusting brush; a photovoltaic electroplate is fixed on the bottom of the concave surface of the large parabolic reflecting surface and is connected with a metal conducting strip; a cooling metal thin tube clings to the metal conducting strip; the photovoltaic electroplate is connected with a horizontal rotating shaft and a vertical rotating shaft through a mechanical supporting mechanism; a light toward detector is arranged in front of the small parabolic reflecting surface; the axis of the centre of sphere of the light toward detector is parallel with the axes of the paraboloids; the light toward detector is connected to a controller; and the controller is connected with an execution motor for controlling the horizontal rotating shaft and the vertical rotating shaft to rotate. The sunlight automatic tracking condensation device has a reasonable structure. By adopting the sunlight automatic tracking condensation device, the problems of much interference, low precision and low stability of the traditional sunlight tracking system are solved, the detection error is reduced, and the tracking precision and stability are improved.
Description
Technical field
The utility model relates to fields such as sun power utilization, sensing collection and solar tracking technology, specifically relates to generate electricity and a kind of solar electrical energy generation heating system of heat utilization.
Background technology
New forms of energy are one of technical fields of the tool decision of 21st century development of world economy power, solar electrical energy generation does not produce any discarded object, pollution-free, noiseless, environment is had no adverse effects, and is desirable clean energy resource, and in November, 2007, the Xu Zhilong master of Xiamen University mentioned installation 1kW solar photovoltaic generation system in Master's thesis " development of butterfly photovoltaic electrification condenser ", compare with the fossil fuel generating, can reduce CO every year
2Discharge capacity 6002300kg, NO
2Discharge capacity 16kg, SO
2Discharge capacity 9kg and particulate 0.6kg, the popularization of concentrating to generate power, the pollution that has alleviated environment greatly.
All with the important content of solar energy resources utilization as the national sustainable development strategy, photovoltaic generation has broad application prospects in national governments.But solar radiation density is low, photovoltaic cell costliness etc. causes the cost of photovoltaic generating system high, and concentrating photovoltaic power generation substitutes expensive photovoltaic electroplax with the light-concentrating material of cheapness, is a kind of effective ways that address this problem.
Existing concentrating solar photovoltaic generating directly comes optically focused by convex lens or Fresnel lens and anti-refracting telescope mostly, the sunshine of assembling projects on the photovoltaic electroplax unevenly, be easy to make photovoltaic electroplax local heating to damage, when optically focused when higher, the heat production of photovoltaic electroplax is very serious, restricting the development of concentrating photovoltaic power generation industry to a great extent, some novel optically focused technology are also arranged at present, but some shortcomings are arranged also, as number of patent application is that 200620070287.6 " batterfly shape reflective light gathering photovoltaic power generating system " adopts dish formula optically focused can allow the sunshine of assembling be mapped to uniformly on the photovoltaic electroplax, but this kind method optically focused ratio is very limited, and its optically focused is than being 2-18 times.
The solar radiation wavelength coverage that can produce photovoltaic effect is at 0.4-1.1 um, and the solar radiation of other wavelength is radiated at and only is converted into heat energy on the solar panel, and the temperature of photovoltaic electroplax is raise, and reduces photoelectric transformation efficiency, has shortened the life-span of photovoltaic electroplax.Number of patent application be 200610088176.2 " can from heat radiation solar energy accumulation type photovoltaic generator " though elimination infrared ray, optical filter be shaped as paraboloidal, processing is difficulty relatively, consumption is big, financial cost is higher.
Most of concentrating generation device need be followed the tracks of the sun, and the solar tracking technology is a great problem all the time, existing light detects tracking technique and mainly contains position sensing detecting device PSD technology, CCD technology, generally complicated, be subject to the influence of external environments such as dark clouds, dust, and cost is higher, and " Chinese solar energy power generating industrial analysis in 2008 and investment consultation report " points out that the tracking cost of the concentrating generating system of each kilowatt is about 1.6 ten thousand yuan.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, favorable working performance, the solar automatic tracking beam condensing unit based on dual paraboloid of electro-optical package long service life.
Technical solution of the present utility model is:
A kind of solar automatic tracking beam condensing unit based on dual paraboloid is characterized in that: comprise big parabolic reflector and little parabolic reflector, above-mentioned two parabolic concave surfaces relatively and the normal direction axis on same straight line, focus or focal line overlap; Concave side at big parabolic reflector and little parabolic reflector is all installed dust removal brush; Infrared fileter is placed on the two paraboloidal focuses or near the focus; The photovoltaic electroplax is fixed on the concave bottom of big parabolic reflector; The photovoltaic electroplax links to each other with metal conducting strip, and the cool metal tubule is close on the metal conducting strip; The photovoltaic electroplax is connected with East and West direction rotating shaft and north-south rotating shaft by mechanical support means; Be provided with one and meet photo-detector before little parabolic reflector, its centre of sphere axis and paraboloid method are met photo-detector and are connected with controller to parallel axes, and controller is connected with the actuating motor that the north-south rotating shaft is rotated with the rotating shaft of control East and West direction.
Big parabolic reflector and little parabolic reflector are medal polish face or the face that is coated with the reflection horizon.
Dust removal brush adopts servomotor to drive, and servomotor is connected with controller.
The water inlet end of cool metal tubule is connected with cooling water inlet pipe, and cooling water inlet pipe is connected with the float water tank; The water side of cool metal tubule is connected with hot water out pipe, and hot water out pipe is connected with heat storage water tank, in the water side of cool metal tubule the temperature control valve is set.
Meeting photo-detector is opaque spheroid or hemisphere, its centre of sphere axis and described two paraboloidal normal axis line parallels, on its centre of sphere axis and spheres intersect point, open an aperture, be light entrance, place the illuminance sensor array equably on the surface, inside of aperture offside; Meet photo-detector light inlet and cover with the not hydrophilic transparent material of hard, the light entrance side is provided with electronic wiper; Described illuminance sensor array comprises that being positioned at the meeting optical registration detection illuminance sensor array of meeting on the photo-detector centre of sphere axis departs from the locational deviation of light detection illuminance sensor array of meeting the photo-detector axis with being positioned at.
Infrared fileter is the reflection-type optical filter, and it is shaped as rectangle, and area guarantees can both pass through optical filter through the light of big parabolic reflector greater than focus, less than little parabola.
Large and small parabola is groove type paraboloid or disc type parabola.
Each illuminance sensor node is because of being subjected to the difference of solar illuminance in the illuminance sensor array, and form difference between each node signal, after via controller is handled, obtain parabola and meet the misalignment angle control signal amount of light, and be used for driving actuating motor with this and drive East and West direction and north-south servocontrol rotating shaft and rotate and follow the tracks of the sun.If detect and meet in the photo-detector, obviously differ from other illuminance sensor nodes with the electric signal of the illuminance sensor node of aperture right opposite, then represent parabola to meet light (the tracking sun) success, drive actuating motor and stop operating.If the electric signal that controller detects any one illuminance sensor node in the illuminance sensor array shows then that all less than setting value external environment is night, actuating motor stops to follow the tracks of operation.
Behind the paraboloidal normal direction axis alignment sun, be parallel to paraboloid method and after big parabolic reflector reflection, accumulate in a bit (or focal line) to the sunshine of axis, and the infrared fileter by parabolic reflector focus annex, elimination most infrared rays, sunshine by optical filter is because of too small paraboloidal focus, behind little parabolic reflector, become the sunshine of converging parallel, project equably on the photovoltaic electroplax, photovoltaic electroplax electricity is drawn by electric wire, both can handle the back and directly use, also can be stored in the accumulator or the use of being incorporated into the power networks.The heat that the photovoltaic electroplax produces is absorbed by the water in the metal thin tube on the metal fin, and the water in tubule reaches certain temperature, when being detected by temperature sensor, and temperature control valve meeting automatic switch, hot water flows in the heat storage water tank, for living and producing and use.
For saves energy, drive East and West direction and north-south rotating shaft and rotate the servomotor that the actuating motor of following the tracks of the sun is selected the band auto-lock function for use, promptly when powering up, motor can turn round, and the rotating shaft self-locking is to keep original position when motor cuts off the power supply.
Start running continually with the accurate tracking sunshine for fear of actuating motor, and because of extraneous high light to meeting the instantaneous interference of photo-detector, controller is set up fuzzy intelligence decision making function assembly, this functional module allows certain light-facing angle deviation and electric motor starting interval time, and reject extraneous instantaneous high light to meeting the interference of photo-detector, and reasonably start the action of meeting electronic wiper on the photo-detector with the thought of logic discrimination.
For the operability of enhanced system, this Setup Controller increases is furnished with the wireless data communication interface.By this interface; operating personnel can be by the mode of long-distance radio communication; on remote computer, obtain real-time control, operation attitude and the generating parameter of this device erecting stage; also can utilize remote computer to send controlled variable (as fuzzy intelligence decision logic rule to controller; allow light-facing angle deviation and various threshold parameter etc.) and control command (as shutting down, reset, force location and electronic wiper action etc.), with real-time monitoring and the Installation and Debugging of handled easily personnel to this device.
Advantage compared with prior art of the present utility model is:
(1) unique, rational enclosed type spheroid or hemisphere shape sunshine are met photo-detector detection architecture and detection technique, have reduced the external disturbance that light detects, and reduce the manual maintenance workload, improve tracking accuracy and stability;
(2) brand-new optically focused principle when improving the optically focused degree, can guarantee that the sunshine of gathering is mapped on the photovoltaic electroplax equably, the serviceable life of prolongation battery;
(3) reasonably filter the infrared ray principle, when improving radiating effect, reduce the consumption of optical filter, save cost.
(4) self-locking motor and fuzzy intelligence control efficient electricity-saving reduces and follows the tracks of power consumption, rejects external interference.
(5) have the controller of wireless communication interface, increased the controllability and the flexibility of device operation, reduced the labour cost of artificial field maintemance.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a basic structure diagrammatic sketch of the present utility model.
Fig. 2 is a basic structure diagrammatic sketch of meeting photo-detector of the present utility model.
Fig. 3 is the principle of work diagrammatic sketch of tracker of the present utility model.
Fig. 4 is a filter infrared ray principle diagrammatic sketch of the present utility model.
Fig. 5 is the basic structure and the principle of work synoptic diagram of cooling heating plant of the present utility model.
The explanation of Fig. 1 sequence number
1-meet photo-detector, 2-little parabolic reflector, 3-infrared fileter, 4-sunshine, 5-float cold water storage cistern, 6-big parabolic reflector, 7-photovoltaic generation plate, 8-metal conducting strip, 9-cooling water inlet pipe, the rotating shaft of 10-East and West direction servocontrol, 11-two paraboloidal public normal direction axis, 12, the both positive and negative polarity of 13-photovoltaic electroplax extension line, 14,15-mechanical support means, 16-hot water outlet pipe, 17-heat storage water tank, the servocontrol rotating shaft of 18-north-south, 25-little parabolic reflector dust removal brush, 26-big parabolic reflector dust removal brush..
The explanation of Fig. 2 sequence number
1.1-sunshine, 1.2-incident light light hole and clear covering, 1.3-lighttight sphere, 1.4-deviation of light detects the illuminance sensor array, 1.5-meet optical registration to detect the illuminance sensor array, 1.6-photo-detector centre of sphere axis, 1.7-electronic wiper met
The explanation of Fig. 4 sequence number
3-infrared fileter, 3.1-big paraboloidal reflected light, 3.2-infrared ray, the light behind 3.3-elimination infrared ray, 3.4-two paraboloidal public focus.
The explanation of Fig. 5 sequence number
8-metal conducting strip, 8.1-tap water inlet, 8.2-float switch, 8.3-cool metal tubule, 8.4-temperature control valve, the outlet of 8.5-heat storage water tank
Embodiment
A kind of solar automatic tracking beam condensing unit based on dual paraboloid comprises big parabolic reflector 6 and little parabolic reflector 2, above-mentioned two parabolic concave surfaces relatively and axis on same straight line 11, focus or focal line overlap; Concave side at little parabolic reflector 2 is installed dust removal brush 25, in the concave side of big parabolic reflector 6 dust removal brush 26 is installed, and dust removal brush 25,26 all adopts servomotor to drive, and servomotor is connected with controller 21.Infrared fileter 3 is placed on the two paraboloidal focuses or near the focus; Photovoltaic electroplax 7 is fixed on the concave bottom of big parabolic reflector; The photovoltaic electroplax links to each other with metal conducting strip 8, and cool metal tubule 8.3 is close on the metal conducting strip 8; The photovoltaic electroplax is connected with East and West direction rotating shaft 19 and north-south rotating shaft 20 by mechanical support means 14,15; Before little parabolic reflector, be provided with one and meet photo-detector 1, its centre of sphere axis is parallel with parabolic axis, the light-facing angle sensor detection circuit 24 of meeting photo-detector is connected with controller 21, and controller is connected with the actuating motor 22,23 that the north and south rotating shaft is rotated with the rotating shaft of control thing.
Big parabolic reflector and little parabolic reflector are medal polish face or the face that is coated with the reflection horizon.
The water inlet end of cool metal tubule is connected with cooling water inlet pipe 9, and cooling water inlet pipe is connected with float cold water storage cistern 5; The water side of cool metal tubule is connected with hot water outlet pipe 16, and the hot water outlet pipe is connected with heat storage water tank 17, in the water side of cool metal tubule temperature control valve 8.4 is set.
Meeting photo-detector is opaque spheroid or hemisphere, its centre of sphere axis and described two paraboloidal normal axis line parallels, on its centre of sphere axis and spheres intersect point, open an aperture, be light entrance, place the illuminance sensor array equably on the surface, inside of aperture offside; Meet photo-detector light inlet and cover with the not hydrophilic transparent material of hard, the light entrance side is provided with electronic wiper 1.7; Electronic wiper is connected with controller 21; Described illuminance sensor array comprises that being positioned at the meeting optical registration detection illuminance sensor array 1.5 of meeting on the photo-detector axis departs from the locational deviation of light detection illuminance sensor array 1.4 of meeting the photo-detector axis with being positioned at.
Large and small parabola is groove type paraboloid or disc type parabola.
Controling appliance has wireless communication interface, by this interface, is connected with the remote computer that carries out real time monitoring and control.
Principle of work of the present utility model is:
Following principle: in conjunction with Fig. 2 and Fig. 3, the centre of sphere axis 1.6 of meeting photo-detector is parallel with two paraboloidal normal direction axis 11, and thing is placed, when incident light parallel (coincidence) when meeting the centre of sphere axis 1.6 of photo-detector, show that this device aimed at the sun, meet optical registration this moment and detect illuminance sensor array 1.5 by the incident light direct projection, the electric signal of these illuminance sensor nodes on array 1.5 can obviously differ from other illuminance sensor nodes.This device misalignment solar time, deviation of light detecting sensor array 1.4 is by the incident light direct projection, and the electric signal of these illuminance sensor nodes on array 1.4 can obviously differ from other illuminance sensor nodes.Controller utilizes the position difference of 1.5 of array 1.4 and arrays, what calculate East and West direction and north-south meets the deviation of light angle, be used for driving actuating motor, drive East and West direction servocontrol rotating shaft 10 and north-south servocontrol rotating shaft 18 rotations, thereby regulate paraboloidal direction, till when meeting optical registration detection illuminance sensor array 1.5 by the incident light direct projection, this moment, this device was aimed at the sun.If controller detect meet any one illuminance sensor node in the photo-detector electric signal all less than certain threshold values signal, show that then external environment is night (or be unsuitable for generating), need not to drive the actuating motor running this moment.Controller can be met the deviation of light angle signal according to what meet that photo-detector reflects in a word, in time regulates the electromechanical servo telecontrol equipment, makes the two parabolic sunshines of following the tracks of.
Optically focused principle: in conjunction with Fig. 1, after paraboloidal axis 11 is aimed at the sun, the sunshine 4 that is parallel to parabolic axis accumulates in a bit (or a line) after big parabolic reflector 6 reflections, and by infrared fileter 3, elimination most infrared rays, sunshine by optical filter is because of too small parabolic 2 focus, after little parabolic reflector 2 reflections, become the sunshine of converging parallel, project equably on the photovoltaic electroplax 7, photovoltaic electroplax electricity is drawn by electric wire 12,13, both can handle the back and directly use, also can be stored in the accumulator or the use of being incorporated into the power networks.When making that when gathering certain dust on little parabolic reflector 2 and the big parabolic reflector 6 reflecting power reduces, the servomotor of controller 21 control dust removal brushs 25,26 rotates, motor is by the back and forth movement of corresponding mechanical linkage driving dust removal brush 25,26, to reach the effect of cleaning parabolic reflector.
Filter infrared ray principle: in conjunction with Fig. 4, infrared fileter be placed on the two paraboloidal focuses or focus before and after near, big paraboloidal reflected light 3.1 is through infrared fileter, infrared ray 3.2 has divergently been reflected, can not be mapped on the photovoltaic electroplax, another part does not contain ultrared light 3.2 transmissions and crosses infrared fileter.
Cooling principle: in conjunction with Fig. 5, the heat that photovoltaic electroplax 7 produces, absorbed by the water in the metal thin tube on the metal conducting strip 8 8.3, water temperature in tubule reaches certain temperature, when being detected by temperature sensor, temperature control valve 8.4 can be opened automatically, and hot water flows in the heat storage water tank 17, uses for life and production.Simultaneously, cold water flow in the metal thin tube 8.3 once more by cooling water inlet pipe 9.Water temperature in tubule falls back to certain temperature, and when being detected by temperature sensor, temperature control valve 8.4 can be closed automatically, and current stop, and reach the cooling effect to photovoltaic electroplax 7.
Economize on electricity and anti-interference principle: drive East and West direction and north-south servocontrol rotating shaft and rotate the servomotor that the actuating motor of following the tracks of the sun is selected the band auto-lock function for use, promptly when powering up, motor can turn round, the rotating shaft self-locking is to keep original position, to save the electric energy of following the tracks of in the sun process when motor cuts off the power supply.System controller is provided with fuzzy intelligence decision making function assembly, and this functional module allows certain light-facing angle deviation and sun light tracking to start interval time, to avoid the frequent startup of actuating motor; And reject extraneous instantaneous high light to meeting the interference of photo-detector with the thought of logic discrimination, and reasonably start the action of meeting electronic wiper on the photo-detector, to improve the disturbance rejection performance.
The wireless communication interface design concept: wireless communication interface can preferred low-cost monolithic radio frequency integrated circuit CC10xx or similar chip (as nRF24xx) as the transmitting-receiving communication chip, its visual transmission range reaches more than the km; Monitoring of the preferred virtual instrument software of remote computer (as LabVIEW8.2 software) or other configurations and this device of universal programming software programming and control application software; Preferably, be set to this Setup Controller from pattern and distribute the reception digital addresses numbering of unique appointment, remote computer is set to holotype; In the internal memory that various controlled variable that this Setup Controller will install in advance and attitude parameter are placed on oneself, and keep real-time update; When remote computer is sent instruction by wireless telecommunications; this Setup Controller is match address at first; if matching addresses success; the then further semanteme of analysis instruction and subsidiary parameter; and then carry out the program redirect by this command request and carry out; finish and comprise: fuzzy intelligence decision logic parameter of regularity is adjusted; allow the adjustment of light-facing angle deviate; the illuminance threshold values is adjusted; the temperature-sensing valve value parameter is adjusted; electronic wiper action is adjusted interval time, the device generated energy; attitude; parameters such as water temperature are uploaded, and carry out as shut down; reset; force control commands such as location and electronic wiper action.
Claims (7)
1. solar automatic tracking beam condensing unit based on dual paraboloid is characterized in that: comprise big parabolic reflector and little parabolic reflector, above-mentioned two parabolic concave surfaces relatively and the normal direction axis on same straight line, focus or focal line overlap; Concave side at big parabolic reflector and little parabolic reflector is all installed dust removal brush; Infrared fileter is placed on the two paraboloidal focuses or near the focus; The photovoltaic electroplax is fixed on the concave bottom of big parabolic reflector; The photovoltaic electroplax links to each other with metal conducting strip, and the cool metal tubule is close on the metal conducting strip; The photovoltaic electroplax is connected with East and West direction rotating shaft and north-south rotating shaft by mechanical support means; Be provided with one and meet photo-detector before little parabolic reflector, its centre of sphere axis and paraboloid method are met photo-detector and are connected with controller to parallel axes, and controller is connected with the actuating motor that the north-south rotating shaft is rotated with the rotating shaft of control East and West direction.
2. the solar automatic tracking beam condensing unit based on dual paraboloid according to claim 1 is characterized in that: big parabolic reflector and little parabolic reflector are medal polish face or the face that is coated with the reflection horizon.
3. the solar automatic tracking beam condensing unit based on dual paraboloid according to claim 1 and 2 is characterized in that: dust removal brush adopts servomotor to drive, and servomotor is connected with controller.
4. the solar automatic tracking beam condensing unit based on dual paraboloid according to claim 1 and 2, it is characterized in that: the water inlet end of cool metal tubule is connected with cooling water inlet pipe, and cooling water inlet pipe is connected with the float water tank; The water side of cool metal tubule is connected with hot water out pipe, and hot water out pipe is connected with heat storage water tank, in the water side of cool metal tubule the temperature control valve is set.
5. the solar automatic tracking beam condensing unit based on dual paraboloid according to claim 1 and 2, it is characterized in that: meeting photo-detector is opaque spheroid or hemisphere, its centre of sphere axis and described two paraboloidal normal axis line parallels, on its centre of sphere axis and spheres intersect point, open an aperture, be light entrance, place the illuminance sensor array equably on the surface, inside of aperture offside; Meet photo-detector light inlet and cover with the not hydrophilic transparent material of hard, the light entrance side is provided with electronic wiper; Described illuminance sensor array comprises that being positioned at the meeting optical registration detection illuminance sensor array of meeting on the photo-detector centre of sphere axis departs from the locational deviation of light detection illuminance sensor array of meeting the photo-detector axis with being positioned at.
6. the solar automatic tracking beam condensing unit based on dual paraboloid according to claim 1 and 2, it is characterized in that: infrared fileter is the reflection-type optical filter, it is shaped as rectangle, and area guarantees can both pass through optical filter through the light of big parabolic reflector greater than focus, less than little parabola.
7. the solar automatic tracking beam condensing unit based on dual paraboloid according to claim 1 and 2 is characterized in that: large and small parabola is groove type paraboloid or disc type parabola.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011200357839U CN201936194U (en) | 2011-02-10 | 2011-02-10 | Sunlight automatic tracking condensation device based on double paraboloids |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200357839U CN201936194U (en) | 2011-02-10 | 2011-02-10 | Sunlight automatic tracking condensation device based on double paraboloids |
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| CN2011200357839U Expired - Fee Related CN201936194U (en) | 2011-02-10 | 2011-02-10 | Sunlight automatic tracking condensation device based on double paraboloids |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707731A (en) * | 2012-05-16 | 2012-10-03 | 苏州市伦琴工业设计有限公司 | Solar tracker |
| CN102778900A (en) * | 2012-08-22 | 2012-11-14 | 湘电集团有限公司 | Counterglow tracking method and tracking system for disc type solar thermal power generation system |
| CN106054947A (en) * | 2016-08-11 | 2016-10-26 | 国网天津市电力公司 | Photovoltaic power generation support system capable of automatic steering according to illumination, and method |
| CN109433127A (en) * | 2018-12-31 | 2019-03-08 | 北京大学深圳研究生院 | A kind of composite photocatalytic reaction system |
-
2011
- 2011-02-10 CN CN2011200357839U patent/CN201936194U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707731A (en) * | 2012-05-16 | 2012-10-03 | 苏州市伦琴工业设计有限公司 | Solar tracker |
| CN102778900A (en) * | 2012-08-22 | 2012-11-14 | 湘电集团有限公司 | Counterglow tracking method and tracking system for disc type solar thermal power generation system |
| CN106054947A (en) * | 2016-08-11 | 2016-10-26 | 国网天津市电力公司 | Photovoltaic power generation support system capable of automatic steering according to illumination, and method |
| CN109433127A (en) * | 2018-12-31 | 2019-03-08 | 北京大学深圳研究生院 | A kind of composite photocatalytic reaction system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20120210 |