CN203689164U - Sun tracking controller - Google Patents
Sun tracking controller Download PDFInfo
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- CN203689164U CN203689164U CN201420026096.4U CN201420026096U CN203689164U CN 203689164 U CN203689164 U CN 203689164U CN 201420026096 U CN201420026096 U CN 201420026096U CN 203689164 U CN203689164 U CN 203689164U
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Abstract
The utility model discloses a sun tracking controller. The sun tracking controller comprises a photovoltaic array plane, a sun orientation detection device, a signal processing circuit and a mechanical control device, wherein the sun orientation detection device is mounted on the mechanical control device through the photovoltaic array plane, the signal processing circuit comprises a signal amplification unit and a signal comparison unit, the sun orientation detection device comprises a shadow shield and ultraviolet ray sensors, the shadow shield and the photovoltaic array plane are vertically arranged, the ultraviolet ray sensors are two in number and are a first ultraviolet ray sensor and a second ultraviolet ray sensor respectively, and the first ultraviolet ray sensor and the second ultraviolet ray sensor are mounted on the photovoltaic array plane and are symmetric about the shadow shield. The sun tracking controller employs the ultraviolet ray sensors to acquire sunlight incidence angle information, generates the corresponding motor driving signal through a simple hardware circuit and realizes sun tracking through the photovoltaic array.
Description
Technical field
The utility model relates to photovoltaic generation control field, is specifically related to a kind of solar tracking controller.
Background technology
Energy problem more and more becomes the Vital Strategic Problems of restriction human society long term growth, and from the industrial revolution, the extensive application of fossil energy has promoted scientific and technological development and the progress of human society greatly.The world today; fossil energy is on the verge of exhaustion; ecologic environment goes from bad to worse; global energy crisis manifests gradually; in order to respond actively the severe challenge of resource environment aspect; clean, sufficient sun power progresses into people's the visual field, how to make photovoltaic array catch to greatest extent sun power, how further to improve the efficiency of photovoltaic generation, the cost that how to reduce photovoltaic generation becomes field of photovoltaic power generation a series of major issues urgently to be resolved hurrily.A large amount of facts have proved, the mode of taking track of sun to follow the tracks of can be issued additional 20%～30% electric weight compared with fixed form, benefit is obvious, but the use of tracking technique has increased again the cost of photovoltaic generation to a great extent, make the price of photovoltaic generation more expensive, the practicality that this greatly reduces solar tracking technology, has hindered it and has applied.Therefore, the research of low cost solar tracking technology seems more and more urgent.
Make a general survey of the present Research of solar tracking technology, tracking mainly contains the methods such as space-time synchronous method, fixing rule method of rotation, four-quadrant tracing, and what physical construction had a single shaft also has a twin shaft.The sun trackers of the overwhelming majority have all used the control chip such as DSP, single-chip microcomputer, system complexity, and cost of development is higher, and the failure rate using under environment is out of doors high; Do not use the tracker of control chip to be difficult to again realize accurate tracking; The working method of Continuous Tracking can consume larger, and this is all unfavorable for promoting the use of of tracking technique.Moreover, every impact that is all difficult to avoid the scattered light in atmosphere to produce detection system precision on the detection of sunlight, this is also a ubiquitous major issue in low cost tracking technique.
Utility model content
The shortcoming and deficiency that exist in order to overcome prior art, the utility model provides a kind of solar tracking controller.
The utility model adopts following technical scheme:
A kind of solar tracking controller, comprise photovoltaic array plane, solar azimuth pick-up unit, signal processing circuit and machine control unit, described solar azimuth pick-up unit is by photovoltaic array Plane Installation on machine control unit, and described signal processing circuit is connected with solar azimuth pick-up unit and machine control unit respectively;
Described signal processing circuit comprises signal amplification unit and signal comparing unit;
Described solar azimuth pick-up unit comprises shadow shield and UV sensor, described shadow shield is vertical with photovoltaic array plane to be placed, described UV sensor comprises two, be respectively the first UV sensor and the second UV sensor, described the first UV sensor and the second UV sensor are arranged in photovoltaic array plane, and about shadow shield symmetry.
The receiving angle of described the first UV sensor and the second UV sensor is 135 °, when installation described in UV sensor head turn 22.5 ° to shadow shield lateral deviation.
Described machine control unit comprises direct current generator, internal gear group, horizontal rotary pedestal, vertical rotation axle; Described photovoltaic array plane is arranged on horizontal rotary pedestal by vertical rotation axle, and rotates with internal gear group, and described direct current generator drives internal gear group to rotate.
Described solar azimuth pick-up unit also comprises the 3rd UV sensor for receiving fixed angle illumination.
With respect to prior art, the utlity model has following beneficial effect:
(1) the utility model has adopted easy solar azimuth to detect tracking means, does not use any Programmable Logic Controller, is realized by combinational logic circuit completely, greatly reduces cost, is suitable for outdoor long-time running work;
(2) the utility model carries out special mounting layout to the orientation of UV sensor, scattered light in air has been dropped to minimum on the impact of testing agency, has realized the high precision tracking to the sun with device the most easily;
(3) the utility model is weighed consideration to tracking accuracy and generating efficiency, regulates the power consumption of electric machine rotation and the generating efficiency of photovoltaic panel by changing tracking accuracy, makes to have a net increase of generated energy and reaches maximum.
Accompanying drawing explanation
Fig. 1 is the utility model solar azimuth structure of the detecting device schematic diagram;
Fig. 2 is the utility model signal processing circuit figure;
Fig. 3 is that the utility model direct current generator drives and holding circuit schematic diagram;
Fig. 4 is the structural representation of the utility model machine control unit.
Shown in figure:
1-photovoltaic array plane, 2-sunray, 3-shadow shield, 4-the first UV sensor, 5-the second UV sensor, 6-vertical rotation axle, 7-horizontal rotary pedestal, 8-internal gear group, 9-direct current generator.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
A kind of solar tracking controller, comprise photovoltaic array plane 1, solar azimuth pick-up unit, signal processing circuit and machine control unit, described solar azimuth pick-up unit passes through photovoltaic array Plane Installation on machine control unit, described solar azimuth pick-up unit rotates with photovoltaic array plane 1, and described signal processing circuit is connected with solar azimuth pick-up unit and machine control unit respectively.
As described in Figure 1, described solar azimuth pick-up unit obtains sunray 2 incident angle information, comprise shadow shield 3 and UV sensor, described shadow shield is vertical with photovoltaic array plane to be placed, described UV sensor comprises two, be respectively the first UV sensor 4 and the second UV sensor 5, described the first UV sensor 4 and the second UV sensor 5 are arranged in photovoltaic array plane 1, and about shadow shield 3 symmetries.
Described signal processing circuit comprises signal amplification unit and signal comparing unit.
The receiving angle of described the first UV sensor 4 and the second UV sensor 5 is 135 °, when installation described in first, second UV sensor head turn 22.5 ° to shadow shield 3 lateral deviations.
Described solar azimuth pick-up unit also comprises the 3rd UV sensor, is fixedly mounted on a certain position, for example, on the base of ground or machine control unit, for receiving fixed angle illumination.
Described UV sensor head and shadow shield horizontal range are L, with the vertical range at shadow shield top be H, accuracy of detection of the present utility model can by change L, H regulate, H/L value is larger, precision is higher.
As shown in Figure 2, UV sensor is meeting output linearity electric current under direct sunlight, obtain linear voltage through processing, use signal amplification unit to amplify this voltage signal, signal input signal comparing unit after amplification, one end and setting voltage by voltage comparator compare, and get the output signal of comparer as the output of solar azimuth pick-up unit.The overall input and output effect of this part is, in the time of direct sunlight UV sensor, to be output as high level, in the time that shadow shield blocks sunshine, be output as low level, therefore, the output at comparer A, B two ends combines and one has four kinds of situations, that is, and and Gao-Gao, height-low, low-high and low-low.The first UV sensor and the second UV sensor are rotated around the axle on vertical and ground with photovoltaic array plane,
In the present embodiment, the 3rd UV sensor fixedly mounts towards eastward certain angle in drum bottom, can only receive the illumination of this fixed-direction, is connected in parallel to obtain reset signal with the second UV sensor.Follow the tracks of every day while end, first, second UV sensor is all towards west, when within second day, the sun rises, can not make first, second UV sensor have corresponding output, and in the time shining upon the 3rd UV sensor, can make the second UV sensor place circuit part output illumination signal, the drive motor reset of back overturning, carries out the tracking of a new round.
The effect of the 3rd UV sensor is to reset.Make system in the time within second day, starting, can rotate back into initial position.If there is no the 3rd UV sensor, to follow the tracks of while finishing at first day, first, second UV sensor is all towards west, and without under light state, two outputs of signal processing circuit are low level, make motor in off state, and motor does not turn.In the time within second day, arriving, the sun is from rising in the east, and sunlight irradiates from east to west, irradiate less than on sensor receiving plane, and two UV sensor state of will remaining stationary, motor, still in off state, can not drive photovoltaic panel to rotating in the east yet.If the 3rd UV sensor in parallel at the second UV sensor two ends, in the time that within second day, the sun comes up in the east, sunlight can not be irradiated to the first UV sensor, and signal corresponding to the first UV sensor exported the state (low level) of still remaining stationary; Although light can not be irradiated to the second UV sensor, but because the 3rd UV sensor is hard-wired towards east, in the time of solar radiation to the three UV sensor, can make signal corresponding to the second UV sensor be output as high level, two of signal processing circuit be output as low level, high level like this, can change the off state of motor, thereby drive photovoltaic panel towards rotating in the east.
Being illustrated in figure 3 direct current generator drives and holding circuit schematic diagram; when A, B two ends incoming level be respectively Gao-Gao, height-low, when low-high and low-low; after logic combination circuit is processed, correspondence is output as low-low, high-low, low-high and low-low; control thus the break-make of four relays; its corresponding motor action for being failure to actuate, forward, reverse, be failure to actuate, realize the real-time follow-up of photovoltaic array to the sun by mechanical driving device.
If Fig. 4 is the structural representation of the utility model machine control unit, described machine control unit comprises direct current generator 9, internal gear group 8, horizontal rotary pedestal 7, vertical rotation axle 6; Described photovoltaic array plane 1 is arranged on horizontal rotary pedestal 7 by vertical rotation axle 6, the setting angle of photovoltaic array plane and local latitude have relation, for example, in Guangzhou, the angle of photovoltaic array plane and vertical rotation axle is 23 degree, and rotate with internal gear group 8, described direct current generator 9 drives internal gear group 8 to rotate, thus the rotation of simple and effective control photovoltaic array.
Annular wheel and motor shaft are fixed together, and outer rotor and vertical rotation axle are fixed together, and annular wheel and outer rotor are combined by interior engagement system, realize the deceleration to direct current generator.
Integrated take UV sensor as basic testing circuit, to obtain solar angle degree information in solar azimuth pick-up unit; The solar angle degree information that described information-processing circuit obtains according to solar azimuth pick-up unit, controls drive motor rotation, realizes the tracking of photovoltaic array to the sun; Described solar tracking control procedure takes to be interrupted control mode, sets by the physical dimension of described solar azimuth pick-up unit, automatically realizes interval time and each deflection angle, maximizes to realize interests.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (4)
1. a solar tracking controller, comprise photovoltaic array plane, it is characterized in that, also comprise solar azimuth pick-up unit, signal processing circuit and machine control unit, described solar azimuth pick-up unit is by photovoltaic array Plane Installation on machine control unit, and described signal processing circuit is connected with solar azimuth pick-up unit and machine control unit respectively;
Described signal processing circuit comprises signal amplification unit and signal comparing unit;
Described solar azimuth pick-up unit comprises shadow shield and UV sensor, described shadow shield is vertical with photovoltaic array plane to be placed, described UV sensor comprises two, be respectively the first UV sensor and the second UV sensor, described the first UV sensor and the second UV sensor are arranged in photovoltaic array plane, and about shadow shield symmetry.
2. a kind of solar tracking controller according to claim 1, is characterized in that, the receiving angle of described the first UV sensor and the second UV sensor is 135 °, when installation described in UV sensor head turn 22.5 ° to shadow shield lateral deviation.
3. a kind of solar tracking controller according to claim 1, is characterized in that, described machine control unit comprises direct current generator, internal gear group, horizontal rotary pedestal, vertical rotation axle; Described photovoltaic array plane is arranged on horizontal rotary pedestal by vertical rotation axle, and rotates with internal gear group, and described direct current generator drives internal gear group to rotate.
4. a kind of solar tracking controller according to claim 1, is characterized in that, described solar azimuth pick-up unit also comprises the 3rd UV sensor for receiving fixed angle illumination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026096.4U CN203689164U (en) | 2014-01-15 | 2014-01-15 | Sun tracking controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026096.4U CN203689164U (en) | 2014-01-15 | 2014-01-15 | Sun tracking controller |
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| Publication Number | Publication Date |
|---|---|
| CN203689164U true CN203689164U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420026096.4U Expired - Fee Related CN203689164U (en) | 2014-01-15 | 2014-01-15 | Sun tracking controller |
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| CN (1) | CN203689164U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760918A (en) * | 2014-01-15 | 2014-04-30 | 华南理工大学 | Solar tracking controller |
| CN105958908A (en) * | 2016-06-18 | 2016-09-21 | 青岛迪玛尔海洋工程有限公司 | Floating base and water floating-type photovoltaic power generation system |
| CN106043601A (en) * | 2016-06-18 | 2016-10-26 | 青岛迪玛尔海洋工程有限公司 | Overwater photovoltaic system anchoring device |
-
2014
- 2014-01-15 CN CN201420026096.4U patent/CN203689164U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760918A (en) * | 2014-01-15 | 2014-04-30 | 华南理工大学 | Solar tracking controller |
| CN105958908A (en) * | 2016-06-18 | 2016-09-21 | 青岛迪玛尔海洋工程有限公司 | Floating base and water floating-type photovoltaic power generation system |
| CN106043601A (en) * | 2016-06-18 | 2016-10-26 | 青岛迪玛尔海洋工程有限公司 | Overwater photovoltaic system anchoring device |
| CN106043601B (en) * | 2016-06-18 | 2018-08-10 | 青岛迪玛尔海洋工程有限公司 | Photovoltaic system anchor waterborne |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20170115 |