CN102314177A - Automatic solar tracking system and method - Google Patents
Automatic solar tracking system and method Download PDFInfo
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- CN102314177A CN102314177A CN2010102194906A CN201010219490A CN102314177A CN 102314177 A CN102314177 A CN 102314177A CN 2010102194906 A CN2010102194906 A CN 2010102194906A CN 201010219490 A CN201010219490 A CN 201010219490A CN 102314177 A CN102314177 A CN 102314177A
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Abstract
The invention discloses an automatic solar tracking system and an automatic solar tracking method. The automatic solar tracking system comprises a tracking detector, a main control box, an operating motor, a global positioning system (GPS) information receiving detector and a light intensity detector, wherein the tracking detector is used for acquiring azimuth information of the sun; the main control box is used for generating a motor control instruction according to the azimuth information of the sun; the operating motor drives a solar panel to steer according to the motor control instruction; the GPS information receiving detector is connected with the main control box and used for acquiring geographic azimuth information of the solar tracking system; and the light intensity detector is connected with the main control box and used for acquiring light intensity information of the sun. The automatic solar tracking method comprises the following steps that: the light intensity detector acquires the light intensity information of the sun; and the main control box judges whether the light intensity information reaches a preset value or not, and controls the solar panel to select a light-controlled mode for tracking according to a judgment result or tracks according to a predetermined strategy. By the automatic solar tracking system and the automatic solar tracking method, the solar panel can track the sun under any weather condition.
Description
Technical field
The present invention relates to a kind of solar energy system and method, relate in particular to a kind of solar automatic tracking system and method.
Background technology
The mode of the tracking sunshine of existing solar automatic tracking system control cell panel generally is divided into two kinds: a kind of is the time control tracking mode; This mode tracking accuracy is poor; And along with variation throughout the year, system's cumulative errors are bigger, so; This tracking mode can only be used for the less demanding dull and stereotyped photovoltaic plant of tracking accuracy, and is not suitable for higher condensation photovoltaic power station of requirement tracking accuracy or photo-thermal system; A kind of in addition is light-operated tracking mode, utilizes optical sensor to obtain sunshine information, and the control solar panel is followed the tracks of the track of the sun; This mode is controlled by sunray fully, and advantage is that tracking accuracy is high, and shortcoming is when weather is cloudy; Because optical sensor can't distinguish solar azimuth, thus can't realize following the tracks of, be exactly more again when weather when overcast to clear; Possibly can't realize following the tracks of for the little optical sensor of investigative range, and for the big optical sensor of investigative range, because the general reduction gear ratio of solar tracking system is all very big; This just determined system at weather when overcast to clear, move the quite a while and could follow the tracks of, so during this period of time in; Can cause the waste of sun power; Particularly appear at dusk when this weather, might system just follow the tracks of or also do not follow the tracks of to go up with regard to the sun and set, this will cause the waste of tracker resource.
Summary of the invention
The object of the present invention is to provide a kind of automatic solar energy tracking device and method, will move the quite a while at weather when overcast to clear and could follow the tracks of in order to solve existing solar automatic tracking system, and the problem of the waste of the sun power that causes.
A kind of solar automatic tracking system comprises: a tracking detector is used to obtain solar azimuth information; One Main Control Tank is used for generating the Electric Machine Control instruction according to said solar azimuth information, an operation motor; Drive solar panel according to said Electric Machine Control instruction and turn to, it is characterized in that, also comprise: a GPS message pick-up detector; Be connected with said Main Control Tank, be used to obtain the residing geographic orientation information of solar tracking system; One light intensity detector is connected with said Main Control Tank, is used to obtain the intensity signal of the sun.
Aforesaid solar automatic tracking system, wherein, said GPS message pick-up detector also is used to obtain current information of time, with the temporal information of the said Main Control Tank of real-time correction.
Aforesaid solar automatic tracking system, wherein, said tracking detector comprises, a North and South direction detector is used to obtain the north-south orientation information of said solar azimuth information; One east-west direction detector is used to obtain the thing azimuth information of said solar azimuth information.
Aforesaid solar automatic tracking system, wherein, said operation motor comprises: operation motor in a north and south is used to drive said solar panel and carries out north and south and turn to; One thing operation motor is used to drive said solar panel and carries out thing and turn to.
Aforesaid solar automatic tracking system wherein, also comprises a wind resistance signaling interface, is connected with said Main Control Tank, is used to obtain the wind resistance signal.
Aforesaid solar automatic tracking system also comprises an analog to digital conversion case, and said tracking detector is connected with said Main Control Tank through said analog to digital conversion case with said light intensity detector.
A kind of solar energy automatic tracking method of the present invention, comprising: Main Control Tank obtains the intensity signal of the sun; Main Control Tank judges whether said intensity signal reaches a preset value, and selects optical mode control to follow the tracks of or follow the tracks of according to predetermined policy according to judged result control solar panel.
Aforesaid solar automatic tracking system, wherein, said predetermined policy is specially: the tracking mode of confirming cell panel according to the time of rising and falling, geographical location information and the local time information of the sun.
Aforesaid solar automatic tracking system, wherein, said local time information is what obtain in real time.
Aforesaid solar automatic tracking system also comprises: Main Control Tank obtains a wind resistance signal message, judges whether the wind resistance signal message reaches a preset value, selects whether to get into maximum wind resistance state according to judged result.
A kind of automatic solar energy tracking device of the present invention and method all can realize the tracking of solar panel to the sun under any weather condition, and at weather by after overcast to clear, can make cell panel follow the tracks of the sun rapidly, obtain sun power fast.
Description of drawings
Fig. 1 is the synoptic diagram of solar automatic tracking system embodiment one of the present invention;
Fig. 2 is the synoptic diagram of solar automatic tracking system embodiment two of the present invention;
Fig. 3 is the synoptic diagram of solar automatic tracking system embodiment three of the present invention;
Fig. 4 is the process flow diagram of a kind of solar energy automatic tracking method of the present invention embodiment one;
Fig. 5 is the process flow diagram of a kind of solar energy automatic tracking method of the present invention embodiment two.
Embodiment
Fig. 1 is the synoptic diagram of solar automatic tracking system embodiment one of the present invention, and as shown in Figure 1, a kind of solar automatic tracking system of the present invention comprises: a tracking detector 1; Be used to obtain solar azimuth information, a Main Control Tank 2 is used for generating the Electric Machine Control instruction according to solar azimuth information; One operation motor 4, instruction drives solar panel and turns to a GPS message pick-up detector 3 according to Electric Machine Control; Be connected with Main Control Tank 2, be used to obtain the residing geographical location information of solar tracking system; One light intensity detector 5 is connected with Main Control Tank, is used to obtain the intensity signal of the sun.
Wherein, tracking detector obtained obtains the azimuth information that solar azimuth information comprises north and south and east-west direction.The method of operation of the solar automatic tracking system under the sunshine normal condition does; Main Control Tank 2 is after obtaining this azimuth information; Generate the Electric Machine Control instruction according to initialize program; Operation motor 4 instructs according to this Electric Machine Control and controls solar panel and turn to, and makes solar panel all the time towards obtaining the more direction of sun power.The present invention is installed in GPS message pick-up detector 3 and light intensity detector 5 in this solar automatic tracking system; Like this; Under sunshine not enough condition the method for operation of this solar automatic tracking system can for, light intensity detector 5 is used for surveying sunlight intensity, and sunlight intensity information is sent to Main Control Tank 2; When the sunlight intensity deficiency; GPS message pick-up detector 3 receives and obtains the residing geographical location information of solar tracking system, and this geographical location information is sent to Main Control Tank 2, and Main Control Tank 2 is estimated the orientation at the sun of different local times according to this geographical location information through initialize program; And through the instruction of initialize program generation Electric Machine Control, operation motor 4 turns to according to this Electric Machine Control instruction control cell panel.
Through solar automatic tracking system of the present invention, when sunshine was normal, system adopted light-operated tracing mode through tracking detector; And when sunshine was not enough, system changed GPS automatically over to and revises the time control tracing mode, like this, in case when weather transferred fine day to by the cloudy day, system realized that automatically revising time control by GPS change to light-operated tracing mode, and then accurate tracking.So, only move very little angular displacement from departing from sun arrival accurate tracking, thereby shortened the adjustment time that system accurately followed the tracks of when rain or shine the sky was changed greatly.Because existing solar automatic tracking system reduction gear ratio is generally all bigger, under pure light-operated tracking Control pattern, can occur one is that detector can not find solar azimuth, and system comes to a halt, and can't follow the tracks of; The 2nd, even if detector can be found out solar azimuth; But because system slowdown is big than too, the orientation that 1 to 2 hours ability of general solar panel needs is followed the tracks of the sun once more, during this period of time; Can't realize that 100% collection utilizes sun power, this can cause the waste of sun power.In addition, occur towards evening like above-mentioned situation, cell panel 1 to the operation in 2 hours the orientation of following the tracks of the sun once more can't be played effect so, cause resource waste.So solar automatic tracking system of the present invention, system compares with the automatic track of existing sun power, has improved the utilization factor to the solar irradiation time greatly, has saved resource.
Fig. 2 is the synoptic diagram of solar automatic tracking system embodiment two of the present invention; As shown in Figure 2; Solar automatic tracking system embodiment two is on the basis of embodiment one, and further, tracking detector 1 can comprise; One North and South direction detector 202 is used to obtain the north-south orientation information of solar azimuth information; One east-west direction detector 201 is used to obtain the thing azimuth information of solar azimuth information.The solar azimuth information of the information conduct that North and South direction detector 202 and east-west direction detector 201 are obtained sends to Main Control Tank 2 respectively.
Further, as shown in Figure 2, operation motor 4 comprises: operation motor 203 in a north and south is used to drive solar panel and carries out north and south and turn to; One thing operation motor is used to drive solar panel and carries out thing and turn to.
Further, as shown in Figure 2, solar automatic tracking system of the present invention also comprises: a wind resistance signaling interface 206 is connected with Main Control Tank 2, and wind resistance signaling interface 206 obtains the wind resistance signal.Main Control Tank 2 is analyzed according to initialize program antagonism wind signal; Decide whether unimpeded access wind resistance state of this solar automatic tracking system; As determine to get into the wind resistance state, then Main Control Tank 2 sends signal out of service to the north and south of operation motor 4 operation motor 203 and thing operation motor 204 respectively, and after wind-force reduces; Main Control Tank 2 sends run signal to the north and south of operation motor 4 operation motor 203 and thing operation motor 204 respectively according to the wind resistance signal.
Fig. 3 is the synoptic diagram of solar automatic tracking system embodiment three of the present invention; As shown in Figure 3; Solar automatic tracking system embodiment three of the present invention is on the basis of the foregoing description; May further include an analog to digital conversion case 305, tracking detector 1 is connected with Main Control Tank 2 through analog to digital conversion case 305 with light intensity detector 5.Wherein, analog to digital conversion case 305 can be chosen as one, and tracking detector 1 is connected with Main Control Tank 2 with light intensity detector 5 shared analog to digital conversion casees 305; Analog to digital conversion case 305 also can be chosen as two, and tracking detector 1 uses an analog to digital conversion case 305 to be connected with Main Control Tank 2 respectively with light intensity detector 5.Because what tracking detector 1 and light intensity detector 5 sent generally is simulating signal; Directly send Main Control Tank 2 to; Can be longer because of circuit, simulating signal is interfered easily, and the digital signal antijamming capability is strong; Be shown in is installed analog to digital conversion case 305 near tracking detector 1 and light intensity detector 5 sides, can effectively avoid this problem.
In addition, among each embodiment of above-mentioned solar automatic tracking system of the present invention, GPS message pick-up detector 3 can also have an important function of obtaining current information of time, with the temporal information of real-time correction Main Control Tank 2.Because the Main Control Tank 2 general single-chip microcomputers that adopt carry out control analysis, can there be certain error in the movement time parameter of single-chip microcomputer because of climate temperature changes, as the solar tracking system of prolonged application; Can not regularly send someone to revise specially; In addition, the solar tracking system different places or areas is used everywhere, and time of rising and falling of each orientation, place sun is difference to some extent; As the deviser or the fabricator of solar tracking system, can't set respectively according to each specific geographic orientation.
Solar automatic tracking system of the present invention is through receiving satellite GPS information; Can obtain the residing geographic position of native system; Timely update the system internal time parameter is according to sun moving law throughout the year, in conjunction with the designing transmission of solar tracking system; Through mcu programming, and then can reach than general time control tracking effect more accurately.Therefore solar automatic tracking system of the present invention is provided with GPS message pick-up detector 3, and system is in case operation; GPS information meeting automatic reception collection automatically according to local geographic orientation, is directly demarcated rising and falling the time of the sun; Simultaneously, gps time information is accurate, automatically regular correction time parameter; So, guaranteed the non-maintaining function of tracker fully.
In sum; Solar automatic tracking system of the present invention; Through a GPS message pick-up detector and a light intensity detector are set in system, obtain the information of current sun light intensity through light intensity detector, and when sunlight intensity is not enough; Receive information through GPS message pick-up detector, to accomplish the tracking of solar cell comparatively accurately to the sun.Just realized that also solar automatic tracking system of the present invention all can realize the tracking of solar panel to the sun under any weather condition; And at weather by after overcast to clear; Can make cell panel follow the tracks of the sun rapidly, obtain sun power fast, avoid issuable wasting of resources problem.
Fig. 4 is the process flow diagram of a kind of solar energy automatic tracking method of the present invention embodiment one, and as shown in Figure 4, a kind of solar energy automatic tracking method of the present invention comprises:
Step 101, light intensity detector are obtained the intensity signal of the sun;
The judged result execution in step 103 in the step 102 or the mode of execution in step 104 are multiple, can comprise:
1. judge that like Main Control Tank the intensity signal of the sun that is obtained equals preset value, then execution in step 103, otherwise, execution in step 104.
2. the intensity signal of the sun that judgement is obtained like Main Control Tank is greater than preset value, and then execution in step 103, otherwise, execution in step 104.
Certainly, because the selection of preset value is multiple,, do not limit to and the above-mentioned mode of enumerating so to select be various to the mode of judged result execution in step 103 in the step 102 or execution in step 104.
The value of the preset value of step 102 degree of light intensity that specifically can be expressed as in the present invention; According to circumstances specifically be provided with by those skilled in the art; Be the value that light intensity like the sun reaches the degree of set light intensity and just forward step 103 to, the value that is lower than the degree of this light intensity like the light intensity of the sun just forwards step 104 to.
The optical mode control of step 103 is the real-time light intensity that can obtain the sun through a tracking detector, and solar cell is followed the tracks of the sun through this real-time light intensity;
Wherein, predetermined policy specifically can be the tracking mode of confirming cell panel according to the time of rising and falling, geographical location information and the local time information of the sun in the step 104.
Further, wherein, can utilize a GPS message pick-up detector to obtain local time information in real time in the step 104.For the estimation that the carrying out of the sun comparatively prepared; The temporal information of said locality is an important parameters; But local temporal information is often not accurate enough; Therefore can utilize GPS message pick-up detector, obtain local geographical location information and obtain local temporal information in real time, just can guarantee that the residing orientation of the sun that step 104 estimates is comparatively accurate.
Fig. 5 is the process flow diagram of a kind of solar energy automatic tracking method of the present invention embodiment two, and it also further comprises the steps: on the basis of embodiment one
Step 501: Main Control Tank obtains a wind resistance signal message;
Step 502: Main Control Tank judges whether the wind resistance signal message reaches a preset value, selects whether to get into maximum wind resistance state according to judged result.
Wherein, the mode whether selection of the judged result of step 502 gets into maximum wind resistance state is multiple, can comprise:
1. Main Control Tank judges that the wind resistance signal message equals a preset value, and then execution in step 503, otherwise then execution in step 504;
2. Main Control Tank is judged the wind resistance signal message greater than a preset value, and then execution in step 503, otherwise then execution in step 504;
Certainly, because the selection of preset value is multiple, the mode of maximum wind resistance state selects is various so whether the judged result of step 502 is selected to get into, and do not limit to and the above-mentioned mode of enumerating.
The preset value of step 502 specifically can be expressed as the value of wind-force; According to circumstances specifically be provided with by those skilled in the art; Be the value that reaches set wind-force like the wind resistance signal message and just forward step 503 to, the value that does not reach set wind-force like the wind resistance signal message just forwards step 504 to.
Step 503: solar automatic tracking system is forced to get into maximum wind resistance state;
Step 504: whether judge solar automatic tracking system at maximum wind resistance state, if then execution in step 505, if not, then execution in step 506;
Step 505: the maximum wind resistance state of removing solar automatic tracking system;
Step 506: keep standing state; Be that solar automatic tracking system keeps existing running status not change.
In sum; Solar energy automatic tracking method of the present invention is obtained the intensity signal of the sun through light intensity detector, and Main Control Tank judges whether the intensity signal of the sun that is obtained has reached a preset value; Select to carry out light-operated or control according to predetermined policy; Also just realized under any weather condition, all realizing the tracking of solar panel to the sun, and at weather by after overcast to clear, can make cell panel follow the tracks of the sun rapidly; Obtain sun power fast, avoided issuable wasting of resources problem.
Claims (10)
1. solar automatic tracking system, comprising: a tracking detector is used to obtain solar azimuth information; One Main Control Tank is used for generating the Electric Machine Control instruction according to said solar azimuth information; One operation motor drives solar panel according to said Electric Machine Control instruction and turns to, and it is characterized in that, also comprises: a GPS message pick-up detector, be connected with said Main Control Tank, and be used to obtain the residing geographic orientation information of solar tracking system; One light intensity detector is connected with said Main Control Tank, is used to obtain the intensity signal of the sun.
2. system according to claim 1 is characterized in that, said GPS message pick-up detector also is used to obtain current information of time, with the temporal information of the said Main Control Tank of real-time correction.
3. system according to claim 1 is characterized in that, said tracking detector comprises, a North and South direction detector is used to obtain the north-south orientation information of said solar azimuth information; One east-west direction detector is used to obtain the thing azimuth information of said solar azimuth information.
4. system according to claim 1 is characterized in that, said operation motor comprises: operation motor in a north and south is used to drive said solar panel and carries out north and south and turn to; One thing operation motor is used to drive said solar panel and carries out thing and turn to.
5. system according to claim 1 is characterized in that, also comprises a wind resistance signaling interface, is connected with said Main Control Tank, is used to obtain the wind resistance signal.
6. system according to claim 1 is characterized in that, also comprises an analog to digital conversion case, and said tracking detector is connected with said Main Control Tank through said analog to digital conversion case with said light intensity detector.
7. a solar energy automatic tracking method is characterized in that, comprising:
Light intensity detector obtains the intensity signal of the sun;
Main Control Tank judges whether said intensity signal reaches a preset value, and selects optical mode control to follow the tracks of or follow the tracks of according to predetermined policy according to judged result control solar panel.
8. method according to claim 7 is characterized in that, said predetermined policy is specially: the tracking mode of confirming solar panel according to the time of rising and falling, geographical location information and the local time information of the sun.
9. method according to claim 8 is characterized in that, obtains said local time information in real time through GPS message pick-up detector.
10. method according to claim 7 is characterized in that, also comprises: Main Control Tank obtains a wind resistance signal message, judges whether the wind resistance signal message reaches a preset value, selects whether to get into maximum wind resistance state according to judged result.
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| CN2010102194906A CN102314177A (en) | 2010-07-06 | 2010-07-06 | Automatic solar tracking system and method |
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| CN2010102194906A CN102314177A (en) | 2010-07-06 | 2010-07-06 | Automatic solar tracking system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353769A (en) * | 2013-07-16 | 2013-10-16 | 佛山职业技术学院 | Photovoltaic tracking power generation method based on GPS positioning |
| CN109189108A (en) * | 2018-11-14 | 2019-01-11 | 西北工业大学 | A kind of miniature solar automatic tracking system based on MCU |
-
2010
- 2010-07-06 CN CN2010102194906A patent/CN102314177A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353769A (en) * | 2013-07-16 | 2013-10-16 | 佛山职业技术学院 | Photovoltaic tracking power generation method based on GPS positioning |
| CN103353769B (en) * | 2013-07-16 | 2015-11-11 | 佛山职业技术学院 | A kind of photovoltaic based on GPS location follows the trail of electricity-generating method |
| CN109189108A (en) * | 2018-11-14 | 2019-01-11 | 西北工业大学 | A kind of miniature solar automatic tracking system based on MCU |
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Application publication date: 20120111 |
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