CN103047780A - Method, controller, device and system for solar heat collector heat tracking - Google Patents
Method, controller, device and system for solar heat collector heat tracking Download PDFInfo
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- CN103047780A CN103047780A CN2013100037069A CN201310003706A CN103047780A CN 103047780 A CN103047780 A CN 103047780A CN 2013100037069 A CN2013100037069 A CN 2013100037069A CN 201310003706 A CN201310003706 A CN 201310003706A CN 103047780 A CN103047780 A CN 103047780A
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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
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Abstract
An embodiment of the invention discloses a method, a controller, a device and a system for solar heat collector heat tracking. The method includes: receiving acquired illumination parameters and feedback angular displacement signals; computing tracking angular displacement according to the illumination parameters and the feedback angular displacement signals; and obtaining the motor revolution number by the aid of tracking angular displacement, hydraulic pump discharge capacity and hydraulic cylinder area. The method for solar heat collector heat tracking has the advantages that the tracking angular displacement is computed according to the acquired illumination parameters and the feedback angular displacement signals, and as for acquisition and computing participation of the illumination parameters, solar heat collector tracking is guaranteed to be interrupted during rainy days or when illumination is insufficient at night, so that the technical problem that whether sun illumination is sufficient or not, a solar heat collector needs to move and is high in energy consumption due to the fact that the solar heat collector moves along the sun illumination direction in the prior art is solved.
Description
Technical field
The present invention relates to solar thermal collector control technology field, more particularly, relate to a kind of solar thermal collector heat energy tracking, controller, device and system.
Background technology
Solar energy is the emittance that the sun sends, and this energy can use in heating and power field, and solar thermal collector is that described emittance polymerization is driven steam turbine power generation with the form that heat energy is converted into mechanical energy.
Improve in order to strengthen Heat-collecting effect, must allow solar thermal collector all the time over against shining upon direction, along with the angle that shines upon is rotated at any time, to carry out solar radiation energy collection and conversion.
Yet, there is following shortcoming at least in the mode that existing solar thermal collector gathers solar energy: because the action of solar thermal collector is along with shining upon the direction motion, whether sufficient described solar thermal collector all need move no matter shine upon, thereby exists the high technological deficiency of power consumption.
Summary of the invention
In view of this, the invention provides a kind of solar thermal collector heat energy tracking, controller, device and system, to realize the low technique effect of solar thermal collector work power consumption.
On the one hand, the invention discloses:
A kind of solar thermal collector heat energy tracking comprises:
Receive the illumination parameter and the feedback angular displacement signal that gather;
Calculate the trail angle displacement according to described illumination parameter and described feedback angular displacement signal;
Utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution.
In order to improve such scheme, described illumination parameter comprises: Intensity of the sunlight and illumination angle comprise according to described solar irradiation parameter and the displacement of described feedback angular displacement signal calculating trail angle:
Whether judge current Intensity of the sunlight greater than preset value, and at current Intensity of the sunlight during greater than preset value:
Take the difference of current illumination angle and current feedback angular displacement as incidence angle, judge incidence angle whether in default accurate threshold value, and within incidence angle exceeds default accurate threshold value the time, the instruction of sending the leading described solar irradiation of trail angle displacement angle predetermined angle.
In order to improve such scheme, described method also comprises:
Obtain current time information according to predetermined period circulation, in the Preset Time section and at Intensity of the sunlight, continue to follow the tracks of during greater than preset value such as the current time;
Exceed the Preset Time section or when Intensity of the sunlight during less than preset value, interrupt following the tracks of such as the current time.
In order to improve such scheme, receive the solar irradiation parameter and the feedback angular displacement signal that gather, comprising:
The solar irradiation parameter comprises: Intensity of the sunlight and illumination angle, obtain described illumination angle and comprise:
Gather the first illumination angle of detecting in the optical sensor;
Relatively the first illumination angle and the second illumination angle, the theoretical light photograph angle of described the second illumination angle for obtaining according to current date and current calculation of longitude ﹠ latitude;
When the difference at described the first illumination angle and the second illumination angle during greater than predetermined angle, with described the second illumination angle as the illumination angle in the solar irradiation parameter; Otherwise, with described the first illumination angle as the illumination angle in the solar irradiation parameter.
On the other hand, the invention discloses:
A kind of solar thermal collector heat energy tracking control unit comprises:
Interface is used for receiving the illumination parameter and the feedback angular displacement signal that gather;
Analog-to-digital conversion module;
Computing module is used for according to calculating the trail angle displacement through the illumination parameter behind the analog-to-digital conversion module and feedback angular displacement signal;
And utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution.
Another aspect the invention discloses:
A kind of solar thermal collector heat energy tracking means comprises:
Collecting unit is used for gathering illumination parameter and feedback angular displacement signal;
Analog-to-digital conversion module;
Controller is used for receiving the illumination parameter and the feedback angular displacement signal that gather;
According to calculating the trail angle displacement through the illumination parameter behind the analog-to-digital conversion module and feedback angular displacement signal;
And utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution;
Driver module is used for to the driving signal of the servo-drive equipment transmission motor action of hydraulic pump.
In order to improve such scheme, described controller also is used for: whether judge current Intensity of the sunlight greater than preset value, and at current Intensity of the sunlight during greater than preset value:
Take the difference of current illumination angle and current feedback angular displacement as incidence angle, judge that incidence angle is whether in default accurate threshold value, and within incidence angle exceeds default accurate threshold value the time, send the instruction of the leading described solar irradiation of trail angle displacement angle predetermined angle, described illumination parameter comprises: Intensity of the sunlight and illumination angle.
In order to improve such scheme, described device also comprises:
Clock module is used for according to predetermined period, and current time information is obtained in circulation, and by described controller control, continues to follow the tracks of during greater than preset value such as the current time in the Preset Time section and at Intensity of the sunlight;
Exceed the Preset Time section or when Intensity of the sunlight during less than preset value, interrupt following the tracks of such as the current time.
In order to improve such scheme, described controller also is used for relatively the first illumination angle and the second illumination angle, described the first illumination angle is the illumination angle that optical sensor gathers, the theoretical light photograph angle of described the second illumination angle for obtaining according to current date and current calculation of longitude ﹠ latitude;
When the difference at described the first illumination angle and the second illumination angle during greater than predetermined angle, with described the second illumination angle as the illumination angle in the solar irradiation parameter; Otherwise, with described the first illumination angle as the illumination angle in the solar irradiation parameter.
On the one hand, the invention discloses again:
A kind of solar thermal collector heat energy tracking system comprises: above-mentioned solar thermal collector heat energy tracking means, servo-drive equipment, motor and hydraulic transmission.
Can find out from above-mentioned technical scheme, solar thermal collector heat energy tracking in the embodiment of the invention, calculate the trail angle displacement by the illumination parameter of calculating collection and the angular displacement signal of feedback, the collection of described illumination parameter is calculated with participation and is guaranteed in the situation of overcast and rainy or illumination at night deficiency, the termination heat collector is followed the tracks of, thereby overcome in the prior art since the action of solar thermal collector along with shining upon the direction motion, no matter whether shine upon sufficient described solar thermal collector existing the high technical problem of power consumption of all need moving.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 a is the disclosed a kind of solar thermal collector heat energy tracking flow chart of the embodiment of the invention;
Fig. 1 b is that the disclosed a kind of solar thermal collector heat energy tracking stroke of the embodiment of the invention calculates schematic diagram;
Fig. 2 is the disclosed a kind of solar thermal collector heat energy tracking flow chart of further embodiment of this invention;
Fig. 3 is the disclosed a kind of solar thermal collector heat energy tracking flow chart of further embodiment of this invention;
Fig. 4 is the disclosed a kind of solar thermal collector heat energy tracking control unit structural representation of the embodiment of the invention;
Fig. 5 is the disclosed a kind of solar thermal collector heat energy tracking means structural representation of the embodiment of the invention;
Fig. 6 is the disclosed a kind of solar thermal collector heat energy tracking means structural representation of further embodiment of this invention;
Fig. 7 is the disclosed a kind of solar thermal collector heat energy tracking system structural representation of the embodiment of the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention discloses a kind of solar thermal collector heat energy tracking, controller, device and system, to realize the low technique effect of solar thermal collector work power consumption.
Fig. 1 a shows a kind of solar thermal collector heat energy tracking, comprising:
S101: receive the illumination parameter and the feedback angular displacement signal that gather;
Described illumination parameter comprises: Intensity of the sunlight and illumination angle can adopt respectively the solar irradiation sensor, and the solar irradiation angle transducer gather.
Described feedback angular displacement sensor is installed on the described heat collector caustic surface.
S102: calculate the trail angle displacement according to described illumination parameter and described feedback angular displacement signal;
At current Intensity of the sunlight during greater than preset value:
Take the difference of current illumination angle and current feedback angular displacement as incidence angle, judge incidence angle whether in default accurate threshold value, and within incidence angle exceeds default accurate threshold value the time, the instruction of sending the leading described solar irradiation of trail angle displacement angle predetermined angle.
Described feedback angular displacement sensor gathers current heat collector angular displacement, when the difference of illumination angle and heat collector angular displacement is carried out the calculating of trail angle displacement as incidence angle, need to check that described angular displacement is whether in deviation range, such as (0.5 °～+ 0.5 °), this kind implementation judges at first whether the position of heat collector needs to carry out angular movement, the more important thing is when to judge and carry out angular movement in order to make the illumination of heat collector real-time tracking, obtain higher Heat-collecting effect.
What need supplementary notes is that according to practical situations, described predetermined angle can select 0.5 ° to follow the tracks of.
S103: utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution.
In the present embodiment, described heat collector adopts the hydraulic system drive motors to rotate, and the revolution of drive motors can calculate by following formula: the piston area * stroke of hydraulic cylinder=pump delivery * motor revolution=flow, wherein:
Described stroke can draw according to described trail angle displacement, shown in Fig. 1 b:
(θ shown in the figure
2-θ
1), the difference of illumination angle and heat collector angular displacement, i.e. incidence angle;
(L
2-L
1) be the stroke that hydraulic cylinder needs, wherein:
X is the horizontal range between two mounting points of heat collector hydraulic cylinder;
Y is the vertical range between two mounting points of heat collector hydraulic cylinder;
R is the pivoted arm radius:
Can know by inference:
Fig. 2 shows another solar thermal collector heat energy tracking, comprising:
S201: receive the illumination parameter and the feedback angular displacement signal that gather;
The solar irradiation parameter comprises: Intensity of the sunlight and illumination angle, and the wherein said described illumination angle that obtains comprises:
S202: relatively the first illumination angle and the second illumination angle, described the first illumination angle is the illumination angle in the illumination parameter that gathers, angle, described the first illumination angle are shone for the theoretical light that obtains according to current date and current calculation of longitude ﹠ latitude in described the second illumination angle;
S203: judge the difference at described the first illumination angle and the second illumination angle greater than predetermined angle, the difference at the first illumination angle and the second illumination angle is then carried out S204 greater than predetermined angle as described; Otherwise, carry out S205;
S204: with described the second illumination angle as the illumination angle in the solar irradiation parameter;
S205: with described the first illumination angle as the illumination angle in the solar irradiation parameter;
S206: calculate the trail angle displacement according to described illumination parameter and described feedback angular displacement signal;
S207: utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution.
Fig. 3 shows another solar thermal collector heat energy tracking means, comprising:
S301: receive the illumination parameter and the feedback angular displacement signal that gather;
S302: obtain current time information and gather the first illumination angle of detecting in the optical sensor according to the predetermined period circulation;
S303: judge the current time whether in the Preset Time section, and whether Intensity of the sunlight is greater than preset value;
S304: the current time starts or continues to follow the tracks of in the Preset Time section and Intensity of the sunlight during greater than preset value;
Current time is carried out S307 when exceeding Preset Time section or Intensity of the sunlight less than preset value;
S305: calculate the trail angle displacement according to described illumination parameter and described feedback angular displacement signal;
S306: utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution.
S307: end to follow the tracks of.
Fig. 4 shows a kind of solar thermal collector heat energy tracking control unit, comprising:
Analog-to-digital conversion module 42;
Described analog-to-digital conversion module is with the illumination parameter of above-mentioned collection and the angular displacement signal of feedback, is manageable data signal from analog signal conversion.
And utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution.
Need to prove that described computing module 42 can be MCU etc.
Fig. 5 shows a kind of solar thermal collector heat energy tracking means, comprising:
Collecting unit 51 is used for gathering illumination parameter and feedback angular displacement signal, and described illumination parameter comprises: intensity of illumination and illumination angle, and described intensity of illumination employing intensity of illumination sensor gathers, described illumination angle gathers by the solar irradiation angle transducer;
Described feedback angular displacement signal by the angular displacement sensor collection with feed back in the analog-to-digital conversion module;
Analog-to-digital conversion module 52 is used for carrying out the conversion of reading of sensor signal, and necessary analog-to-digital conversion.
Need to prove:
The output of described intensity of illumination sensor and described illumination angle transducer can be carried out analog-to-digital conversion by the analog-to-digital conversion module that is arranged in the controller, namely described analog-to-digital conversion module can be integrated in the described controller, the output accuracy of described angular displacement sensor requires high, can use 16 LTC1864AD conversion chips, and adopt REF3040 standard of precision voltage voltage chip as reference voltage, resolution 0.01 degree.Be reduce disturbance, the mean value of gained is as the end value of sampled signal, i.e. arithmetic mean method filtering after sampling by continuous 8 times.
According to calculating the trail angle displacement through the illumination parameter behind the analog-to-digital conversion module and feedback angular displacement signal;
And utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution;
Described controller can pass through the above-mentioned flow process of PIC16F877 chip microcontroller.
Described driver module can be realized by the long line driver module of 26LS31.
Need to prove, the PIC16F877 single-chip microcomputer can be used as servo controller and the long line of integrated AM26LS31 drives chip, topmost is exactly the control of finishing servomotor, and PIC16F877 can realize easily by the PWM mode of operation is set the output of Electric Machine Control pulse.For reducing to disturb, use the long line of AM26LS31 to drive the command pulse input interface that chip connects servo-drive equipment.Electric machine rotation final and described servo-drive equipment connection is realized the purpose of solar tracking, and angular displacement sensor is realized the closed-loop control to servomotor as the value of feedback of control object position.
Described controller 2 also is used for whether judging current Intensity of the sunlight greater than preset value, and at current Intensity of the sunlight during greater than preset value:
Take the difference of current illumination angle and current feedback angular displacement as incidence angle, judge that incidence angle is whether in default accurate threshold value, and within incidence angle exceeds default accurate threshold value the time, send the instruction of the leading described solar irradiation of trail angle displacement angle predetermined angle, described illumination parameter comprises: Intensity of the sunlight and illumination angle.
Fig. 6 shows another solar thermal collector heat energy tracking means, on the basis of Fig. 5 diagram and corresponding explanation thereof, also shows among Fig. 6:
Exceed the Preset Time section or when Intensity of the sunlight during less than preset value, interrupt following the tracks of such as the current time.
Described clock module 61 can adopt the DS1302 clock chip, provide second, minute, the time, day, week, Month And Year, have large solar month of 30 days and leap year compensate function, the calculating that is suitably for sun angle provides correct basis of time.
Described controller 2 also is used for relatively the first illumination angle and the second illumination angle, and described the first illumination angle is the illumination angle that optical sensor gathers, and the angle is shone for the theoretical light that obtains according to current date and current calculation of longitude ﹠ latitude in described the second illumination angle;
When the difference at described the first illumination angle and the second illumination angle during greater than predetermined angle, with described the second illumination angle as the illumination angle in the solar irradiation parameter; Otherwise, with described the first illumination angle as the illumination angle in the solar irradiation parameter.
Fig. 7 shows a kind of solar thermal collector heat energy tracking system, Fig. 5-6 diagram and the described solar thermal collector heat energy tracking means 71 of corresponding explanation, servo-drive equipment 72, motor 73 and hydraulic transmission 74.
In sum:
Solar thermal collector heat energy tracking in the embodiment of the invention, calculate the trail angle displacement by the illumination parameter of calculating collection and the angular displacement signal of feedback, the collection of described illumination parameter is calculated with participation and is guaranteed in the situation of overcast and rainy or illumination at night deficiency, the termination heat collector is followed the tracks of, thereby overcome in the prior art since the action of solar thermal collector along with shining upon the direction motion, no matter whether shine upon sufficient described solar thermal collector existing the high technical problem of power consumption of all need moving.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment and system, because it is corresponding with the disclosed method of embodiment, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random Access Memory, RAM) etc. at random.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation of the spirit or scope that do not break away from the embodiment of the invention, realize in other embodiments.Therefore, the embodiment of the invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a solar thermal collector heat energy tracking is characterized in that, comprising:
Receive the illumination parameter and the feedback angular displacement signal that gather;
Calculate the trail angle displacement according to described illumination parameter and described feedback angular displacement signal;
Utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution.
2. solar thermal collector heat energy tracking as claimed in claim 1 is characterized in that,
Described illumination parameter comprises: Intensity of the sunlight and illumination angle comprise according to described solar irradiation parameter and the displacement of described feedback angular displacement signal calculating trail angle:
Whether judge current Intensity of the sunlight greater than preset value, and at current Intensity of the sunlight during greater than preset value:
Take the difference of current illumination angle and current feedback angular displacement as incidence angle, judge incidence angle whether in default accurate threshold value, and within incidence angle exceeds default accurate threshold value the time, the instruction of sending the leading described solar irradiation of trail angle displacement angle predetermined angle.
3. solar thermal collector heat energy tracking as claimed in claim 1 is characterized in that, also comprises:
Obtain current time information according to predetermined period circulation, in the Preset Time section and at Intensity of the sunlight, continue to follow the tracks of during greater than preset value such as the current time;
Exceed the Preset Time section or when Intensity of the sunlight during less than preset value, interrupt following the tracks of such as the current time.
4. solar thermal collector heat energy tracking as claimed in claim 1 is characterized in that, receives the solar irradiation parameter and the feedback angular displacement signal that gather, comprising:
The solar irradiation parameter comprises: Intensity of the sunlight and illumination angle, obtain described illumination angle and comprise:
Relatively the first illumination angle and the second illumination angle, the theoretical light photograph angle of described the second illumination angle for obtaining according to current date and current calculation of longitude ﹠ latitude;
When the difference at described the first illumination angle and the second illumination angle during greater than predetermined angle, with described the second illumination angle as the illumination angle in the solar irradiation parameter; Otherwise, with described the first illumination angle as the illumination angle in the solar irradiation parameter.
5. a solar thermal collector heat energy tracking control unit is characterized in that, comprising:
Interface is used for receiving the illumination parameter and the feedback angular displacement signal that gather;
Analog-to-digital conversion module;
Computing module is used for according to calculating the trail angle displacement through the illumination parameter behind the analog-to-digital conversion module and feedback angular displacement signal;
And utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution.
6. a solar thermal collector heat energy tracking means is characterized in that, comprising:
Collecting unit is used for gathering illumination parameter and feedback angular displacement signal;
Analog-to-digital conversion module;
Controller is used for receiving the illumination parameter and the feedback angular displacement signal that gather;
According to calculating the trail angle displacement through the illumination parameter behind the analog-to-digital conversion module and feedback angular displacement signal;
And utilize described trail angle displacement, hydraulic pump discharge and hydraulic cylinder area to obtain the motor revolution;
Driver module is used for to the driving signal of the servo-drive equipment transmission motor action of hydraulic pump.
7. solar thermal collector heat energy tracking means as claimed in claim 6 is characterized in that,
Described controller also is used for: whether judge current Intensity of the sunlight greater than preset value, and at current Intensity of the sunlight during greater than preset value:
Take the difference of current illumination angle and current feedback angular displacement as incidence angle, judge that incidence angle is whether in default accurate threshold value, and within incidence angle exceeds default accurate threshold value the time, send the instruction of the leading described solar irradiation of trail angle displacement angle predetermined angle, described illumination parameter comprises: Intensity of the sunlight and illumination angle.
8. solar thermal collector heat energy tracking means as claimed in claim 6 is characterized in that, also comprises:
Clock module is used for according to predetermined period, and current time information is obtained in circulation, and by described controller control, continues to follow the tracks of during greater than preset value such as the current time in the Preset Time section and at Intensity of the sunlight;
Exceed the Preset Time section or when Intensity of the sunlight during less than preset value, interrupt following the tracks of such as the current time.
9. solar thermal collector heat energy tracking means as claimed in claim 6 is characterized in that,
Described controller also is used for relatively the first illumination angle and the second illumination angle, and described the first illumination angle is the illumination angle that optical sensor gathers, and the angle is shone for the theoretical light that obtains according to current date and current calculation of longitude ﹠ latitude in described the second illumination angle;
When the difference at described the first illumination angle and the second illumination angle during greater than predetermined angle, with described the second illumination angle as the illumination angle in the solar irradiation parameter; Otherwise, with described the first illumination angle as the illumination angle in the solar irradiation parameter.
10. a solar thermal collector heat energy tracking system is characterized in that, comprising: the described solar thermal collector heat energy of each claim of claim 6-9 tracking means, servo-drive equipment, motor and hydraulic transmission.
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| CN201310003706.9A CN103047780B (en) | 2013-01-06 | 2013-01-06 | Method, controller, device and system for solar heat collector heat tracking |
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| CN105811868A (en) * | 2016-03-22 | 2016-07-27 | 苏州合欣美电子科技有限公司 | Rotation adjustment and control method of photovoltaic module |
| CN105974945A (en) * | 2016-03-10 | 2016-09-28 | 沙照美 | Solar light tracking device |
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| CN202562094U (en) * | 2012-04-10 | 2012-11-28 | 中国航天科技集团公司烽火机械厂 | Trough-type solar energy collecting and tracking driving apparatus and system |
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| US4178913A (en) * | 1977-12-23 | 1979-12-18 | Solar Kinetics, Inc. | Solar collector system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105974945A (en) * | 2016-03-10 | 2016-09-28 | 沙照美 | Solar light tracking device |
| CN105974945B (en) * | 2016-03-10 | 2021-04-30 | 沙照美 | Sunlight tracking device |
| CN105811868A (en) * | 2016-03-22 | 2016-07-27 | 苏州合欣美电子科技有限公司 | Rotation adjustment and control method of photovoltaic module |
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| Publication number | Publication date |
|---|---|
| CN103047780B (en) | 2015-04-15 |
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