CN105159331A - Photovoltaic cell panel tracking adjusting device and adjusting method and photovoltaic power supply system - Google Patents

Photovoltaic cell panel tracking adjusting device and adjusting method and photovoltaic power supply system Download PDF

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Publication number
CN105159331A
CN105159331A CN201510579448.8A CN201510579448A CN105159331A CN 105159331 A CN105159331 A CN 105159331A CN 201510579448 A CN201510579448 A CN 201510579448A CN 105159331 A CN105159331 A CN 105159331A
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CN
China
Prior art keywords
battery panel
photovoltaic battery
angle
north
south
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CN201510579448.8A
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Chinese (zh)
Inventor
李海宁
钟小普
苗家将
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Guangzhou Hualing Refrigeration Equipment Co Ltd
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Guangzhou Hualing Refrigeration Equipment Co Ltd
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Priority to CN201510579448.8A priority Critical patent/CN105159331A/en
Publication of CN105159331A publication Critical patent/CN105159331A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The invention discloses a photovoltaic cell panel tracking adjusting apparatus, and the apparatus comprises a timer, a turning adjusting mechanism and a controller, wherein the timer is used to record the current time; the turning adjusting mechanism comprises a pedestal, an east-west adjusting unit and a north-south adjusting unit, wherein the east-west adjusting unit is used to adjust the east-west azimuth of the photovoltaic cell panel and the north-south adjusting unit is used to adjust the elevation angle in north-south direction of the photovoltaic cell panel; the controller is used to obtain the current time and judge if the current time is within a preset time quantum, and when the current time is within the preset time quantum, the controllers controls the north-south adjusting unit adjusts the elevation angle in north-south direction of the photovoltaic cell panel to a first preset angle and controls the east-west adjusting unit adjusts the east-west azimuth of the photovoltaic cell panel to a second preset angle in an interval of a preset time. The tracking adjusting apparatus can improve the solar energy utilization rate. The invention also discloses a photovoltaic power supply system and a photovoltaic cell panel adjusting method.

Description

The tracking regulating device of photovoltaic battery panel and control method and photovoltaic power supply system
Technical field
The invention belongs to electrical equipment manufacturing technology field, particularly relate to a kind of tracking regulating device of photovoltaic battery panel, and there is the photovoltaic power supply system of this device and the photovoltaic battery panel control method based on this device.
Background technology
Along with people's living standard improves, the increase of population, the mankind are day by day urgent to energy demand.And traditional non-renewable energy resources such as oil, rock gas face exhausted problem, need to tap a new source of energy alleviating energy crisis in a hurry.
Conventional air-conditioning to consume energy large part as household appliance technical field, consumes a large amount of electric energy every year.According to statistics, every year because the electric energy of air-conditioning consumption accounts for 65% of Household electric energy consumption.And along with people's living standard raising and economic development, estimate that domestic air conditioning installation is every year at about 5,000 ten thousand, therefore, the energy-saving and emission-reduction that improvement idle call energy mode or reduction air conditioning energy consumption are advocated for country are significant.
PV air-conditioner utilizes sun power to heat to realize cooling as power, belongs to domestic energy-conserving electrical equipment.PV air-conditioner mainly relies on electric energy that photovoltaic generating system produces to realize normal operation, and relies on electric energy on secondary energy electrical network completely unlike conventional air-conditioning, has broken away from traditional air conditioner energy mode to a certain extent, has reduced electrical network power consumption.PV air-conditioner normally and efficiently reliability service key is to make full use of sun power, and wherein, gordian technique is the effective tracking to the sun, for solar electrical energy generation in correlation technique, although part solves photoelectricity or photo-thermal conversion efficiency problem, very low for the utilization factor of sun power.
Summary of the invention
The present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, one object of the present invention is the tracking regulating device proposing a kind of photovoltaic battery panel, and this tracking regulating device, can improve solar energy utilization ratio.
Another object of the present invention is that proposition is a kind of and has the photovoltaic power supply system of this tracking regulating device and the photovoltaic battery panel control method based on this tracking regulating device.
In order to achieve the above object, one aspect of the present invention proposes a kind of tracking regulating device of photovoltaic battery panel, and this tracking regulating device comprises: timer, for recording current time; Turn to governor motion, the described governor motion that turns to comprises base element, thing regulon and north and south regulon, wherein, the between east and west parallactic angle of described thing regulon to photovoltaic battery panel regulates, and the described north and south elevation angle of regulon to the North and South direction of described photovoltaic battery panel regulates; And controller, described controller obtains current time, and judge described current time whether in preset time period, and when described current time is in described preset time period, control elevation angle to the first predetermined angle that described north and south regulon regulates the North and South direction of described photovoltaic battery panel, and control every Preset Time thing azimuthal variation second predetermined angle that described thing regulon regulates described photovoltaic battery panel.
According to the tracking regulating device of photovoltaic battery panel of the present invention, control to turn to the north and south steering unit of governor motion and thing steering unit to regulate the elevation angle of the North and South direction of photovoltaic battery panel and parallactic angle between east and west according to current time data by controller, thus can in real time to the position angle of the sun and effective tracking of north and south elevation angle, make photovoltaic battery panel vertical with position of sun, improve the utilization factor to sun power.
Particularly, described base element comprises: base; Support member and return unit, described support member is positioned on described base, and described support member and the cooperation of described return unit are carried out height to described photovoltaic battery panel and regulated; And hoistable platform, described hoistable platform is positioned on described support member.
Particularly, described thing regulon comprises: the first drive motor, and described first drive motor is fixed on described hoistable platform; First slowing-down structure, described first slowing-down structure and described first drive motor are rigidly connected; And revolving dial, described revolving dial is fixedly installed on described first slowing-down structure;
Described north and south regulon comprises: the second drive motor and electric machine support, and described electric machine support is fixedly installed on described revolving dial, and described second drive motor is fixed by described electric machine support; Second slowing-down structure, described second slowing-down structure is connected with described second drive motor; And tilt mount, described tilt mount and described second slowing-down structure link, and the fixture of described photovoltaic battery panel is supported by described tilt mount;
Wherein, thing regulates power transmission to described revolving dial to carry out the azimuthal adjustment of thing to drive described photovoltaic battery panel according to the thing regulable control signal of described controller by described first slowing-down structure by described first drive motor; And
Described second drive motor exports preset angular movement power to described tilt mount according to the north and south regulable control signal of described controller by the second slowing-down structure, regulates with the elevation angle driving described photovoltaic battery panel to carry out North and South direction.
Said apparatus also comprises: locating device and Weather information receiving terminal, described locating device is for locating the geographic position belonging to described tracking regulating device, and send a request to weather forecast service end according to described geographic position, described Weather information receiving terminal receives Weather information corresponding to described geographic position that described weather forecast service end sends, when described controller is judged as special weather circumstances according to described Weather information, carry out early warning and control described tracking regulating device stopping following the trail of, ensure safety and the grid-connected system stability of this tracking regulating device.
In addition, described controller is also for after judging that described current time reaches the lower limit time point of described preset time period, control described north and south regulon and described thing regulon to carry out respectively oppositely regulating to make described photovoltaic battery panel return initial position, said apparatus also comprises: the first limit switch and the second limit switch, described first limit switch is arranged on the initial position of described thing regulon, and described second limit switch is arranged on the final position of described thing regulon; With the 3rd limit switch and the 4th limit switch, described 3rd limit switch is arranged on the initial position of described north and south regulon, and described 4th limit switch is arranged on the final position of described north and south regulon, thus can avoid occurring derailment occurring.
In order to achieve the above object, the present invention proposes a kind of photovoltaic power supply system on the other hand, and this system comprises: the tracking regulating device described in above-mentioned aspect; By electric loading; Photovoltaic generating system, described photovoltaic generating system comprises photovoltaic battery panel and control device, described tracking regulating device regulates the elevation angle of described photovoltaic battery panel and position angle, and described control device is described electricity consumption load supplying according to the electric energy that described photovoltaic battery panel produces.
According to photovoltaic power supply system of the present invention, by following the trail of regulating device, the elevation angle of photovoltaic battery panel and position angle are regulated, the utilization factor to sun power can be improved, the electric energy that control device produces according to photovoltaic battery panel realizes the photovoltaic power supply by electric loading, reduces the power consumption to electrical network.
Based on above-mentioned tracking regulating device, the present invention proposes a kind of photovoltaic battery panel control method on the one hand, and the method comprises the following steps: obtain current time, and judges described current time whether in preset time period; If described current time is in described preset time period, then regulate elevation angle to the first predetermined angle of the North and South direction of photovoltaic battery panel; And thing azimuthal variation second predetermined angle of described photovoltaic battery panel is regulated every Preset Time.
According to photovoltaic battery panel control method of the present invention, according to current time data, the elevation angle of the North and South direction of photovoltaic battery panel and parallactic angle between east and west are regulated, thus can in real time to the position angle of the sun and effective tracking of north and south elevation angle, make photovoltaic battery panel vertical with position of sun, improve the utilization factor to sun power.
Said method also comprises: present level angle and the present orientation angle of detecting the sun, and calculates true altitude angle and the true bearing angle of described photovoltaic battery panel; And according to the present level angle of the described sun and the true altitude angle of present orientation angle and described photovoltaic battery panel and true bearing angle, described photovoltaic battery panel is regulated, thus the photovoltaic battery panel moment can be realized just to solar incident angle, improve the utilization factor of sun power.
Said method also comprises: the current light intensity detecting the sun, according to described current light strength control, the start and stop of the tracking regulating device of photovoltaic battery panel, effectively can utilize sun power, avoid error starting.
In addition, said method also comprises: locate the geographic position belonging to described tracking regulating device, and send a request to weather forecast service end according to described geographic position; Receive the Weather information that the described geographic position of described weather forecast service end transmission is corresponding, and when being judged as special weather circumstances according to described Weather information, carry out early warning and control described photovoltaic battery panel tracking regulating device stop follow the trail of, ensure safety and the grid-connected system stability of this tracking regulating device.
Accompanying drawing explanation
Fig. 1 is the block diagram of the tracking regulating device of photovoltaic battery panel according to an embodiment of the invention;
Fig. 2 is the structural representation turning to governor motion according to a specific embodiment of the present invention;
Fig. 3 is the structural representation turning to governor motion according to another specific embodiment of the present invention;
Fig. 4 is the schematic diagram regulated the position of photovoltaic battery panel according to an embodiment of the invention;
Fig. 5 is the block diagram of the tracking regulating device of photovoltaic battery panel according to another embodiment of the invention;
Fig. 6 is the block diagram of photovoltaic power supply system according to an embodiment of the invention;
Fig. 7 is the block diagram of photovoltaic power supply system according to another embodiment of the invention;
Fig. 8 is the process flow diagram of photovoltaic battery panel control method according to an embodiment of the invention; And
Fig. 9 is the process flow diagram of the photovoltaic battery panel control method according to a specific embodiment of the present invention.
Reference numeral:
Photovoltaic power supply system 1000,
Follow the trail of regulating device 100, use electric loading 200 and photovoltaic generating system 300,
Timer 10, turn to governor motion 20 and controller 30, base element 21, thing regulon 22 and north and south regulon 23, light sensor 40, light intensity detector 50, start stop operation unit 60, locating device 70 and Weather information receiving terminal 80, base 11, support member 12, return unit 13 and hoistable platform 14, first drive motor 221, first slowing-down structure 222 and revolving dial 223, second drive motor 231, electric machine support 232, second slowing-down structure 233 and tilt mount 234
Photovoltaic DC-to-AC converter 400, battery pack 500, the fixture 24 of photovoltaic battery panel, DC load 201 and AC load 202.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Tracking regulating device according to the photovoltaic battery panel of the embodiment of the present invention and the control method with the PV air-conditioner system of this device and the photovoltaic battery panel based on this device are described with reference to the accompanying drawings.
First the tracking regulating device of the photovoltaic battery panel of the embodiment of the present invention is described.
Fig. 1 is the functional block diagram of the tracking regulating device of photovoltaic battery panel according to an embodiment of the invention, and as shown in Figure 1, this tracking regulating device 100 comprises timer 10, turns to governor motion 20 and controller 30.
Wherein, timer 10 is for recording current time.Governor motion 20 is turned to comprise base element 21, thing regulon 22 and north and south regulon 23, the parallactic angle between east and west of thing regulon 22 pairs of photovoltaic battery panels regulates, be adapted to rising in east and drop in west of the sun, photovoltaic battery panel is followed the trail of the east-west direction of the sun, the elevation angle of north and south regulon to the North and South direction of photovoltaic battery panel regulates, be adapted to the change of North and South direction in sun running, photovoltaic battery panel is followed the trail of the North and South direction of the sun.
Controller 30 obtains current time, and judge whether current time exists the time period of sunshine in preset time period in such as one day, and when current time is in preset time period, control elevation angle to the first predetermined angle that north and south regulon 23 regulates the North and South direction of photovoltaic battery panel, here, first predetermined angle can calculate according to the ruuning situation of the sun, for the angle that every day, sun North and South direction changed obtained, and, controller 30 is every Preset Time, such as 1 hour, control thing azimuthal variation second predetermined angle that thing regulon 22 regulates photovoltaic battery panel, be understandable that, the sun rises in east and drop in west, the change of North and South direction is less than the angle of east-west direction.Put it briefly, controller 30 controls thing regulon 22 and north and south regulon 23 according to current time, to regulate the elevation angle of the North and South direction of photovoltaic battery panel and parallactic angle between east and west, make photovoltaic battery panel effectively can follow the trail of the position of the sun, by the tracking of the elevation angle of parallactic angle between east and west and North and South direction, to guarantee that photovoltaic battery panel is in real time just to solar illumination angle, improves the utilization factor to sun power.
Particularly, controller 30 reads the time data in timer 10, according to the method for operation of procedure stipulation to turn to governor motion 20 transmission of control signals thus drive turns to governor motion 20 carry out corresponding action after being judged by the judgment mode designed in program.Such as, in one particular embodiment of the present invention, the operational use time of the tracking regulating device 100 of the photovoltaic battery panel of the embodiment of the present invention is 12 hours, such as 6:00-18:00, wherein, detecting unit such as voltage sensor can be passed through, current sensor detects the voltage and current of photovoltaic battery panel, time in the morning, the illumination of the sun is more and more stronger, the boosting of photovoltaic battery panel is very fast, the sun out soon the voltage of photovoltaic battery panel can reach crest voltage, after the sunset, the voltage drop of photovoltaic battery panel is very fast, but can not zero be dropped to, left and right at noon, the short-circuit current of photovoltaic battery panel rises to maximum, then slow decline is started, be close to zero to evening.Therefore, for photovoltaic power supply system, in order to realize maximally utilising sun power, realize charge in batteries, seamless switching between grid-connected power supply and loading demand, especially load such as air-conditioning is when running overload, extends the working time of the tracking regulating device 100 of the embodiment of the present invention, the power stage improving photovoltaic cell is very necessary, and is feasible.
In an embodiment of the present invention, be that namely 6:00-18:00 follows the trail of regulating device 100 working 12 hours every day with preset time period, the angle changing in the north-south of the first predetermined angle and sun every day, 0.12 ° can be defined as through calculating, namely the North and South direction of photovoltaic battery panel changes 0.12 ° every day, and 15 ° are rotated for example for east-west direction each hour control thing regulon 22, tracking regulating device 100 course of work of the embodiment of the present invention is described.Particularly, when initial, follow the trail of the position that regulating device 100 makes photovoltaic battery panel rise towards the sun, after bringing into operation, controller 30 reads the time data in timer 10, judge whether current time data reaches point in morning six, if do not reach 6 points, the time that then proceeds reads and judges, until current time reaches early 6 points, control north and south regulon 23 action to regulate the elevation angle to 0.12 ° of the North and South direction of photovoltaic battery panel, controller 30 judges whether current time is integral point again, if not integral point, then continue the reading time and judge whether to reach late 6 points, until current time reaches the integral point time, such as current time was 7 o'clock sharps, then control thing regulon 22 and rotate 15 ° westwards, then, continue to read time data, and judge whether to reach at late 6 and determine whether the integral point time, and at each integral point time point, control thing regulon 22 to regulate to change 15 °, until current time reaches late 6 points, insufficient light after the sunset, follow the trail of regulating device 100 end of run.
The tracking regulating device 100 of the photovoltaic battery panel of the embodiment of the present invention, control to turn to the elevation angle of the North and South direction of the north and south steering unit 23 of governor motion and thing steering unit 22 pairs of photovoltaic battery panels and parallactic angle between east and west to regulate according to current time data by controller 30, thus can in real time to the position angle of the sun and effective tracking of north and south elevation angle, make photovoltaic battery panel vertical with position of sun, improve the utilization factor to sun power.
Further, controller 30, also for after judging that current time reaches the lower limit time point of preset time period, controls north and south regulon 23 and thing regulon 22 carries out oppositely regulating to make photovoltaic battery panel return initial position respectively.Such as, when current time is 18:00 in evening, then first controls north and south regulon 23 and turn round 0.12 °, then control east orientation regulon 22 and turn round 180 °, get back to initial position to make photovoltaic battery panel.And then, again read time data, judge whether to reach six o'clock of morning, namely enter next circulation.
Further the above-mentioned structure of governor motion 20 that turns to is described in detail below.
Fig. 2 is the structural representation turning to governor motion according to an embodiment of the invention, and as shown in Figure 2, wherein, base element 10 comprises base 11, support member 12, return unit 13 and hoistable platform 14.Support member 12 such as cylinder is positioned on base 11, support member 12, such as cylinder, and return unit 13, such as spring suppport, and coordinate and carry out height adjustment to photovoltaic battery panel, hoistable platform 14 is positioned on support member 12.In other words, support member 12 and return unit 13 coordinate the adjustable height changing photovoltaic battery panel.Fig. 3 is the schematic diagram turning to regulating device according to another embodiment of the invention, and wherein, base element 10 is as shown in Figure 3 different from the form in Fig. 2.
As shown in Figure 2, thing regulon 22 comprises the first drive motor 221, first slowing-down structure 222 and revolving dial 223, wherein, first drive motor 221 is fixed on hoistable platform 14, first slowing-down structure 222 and the first drive motor 221 are rigidly connected, such as be rigidly connected by positive coupling, revolving dial 223 is fixedly installed on the first slowing-down structure 222.
North and south regulon 23 comprises the second drive motor 231, electric machine support 232, second slowing-down structure 233 and tilt mount 234.Wherein, electric machine support 232 is fixedly installed on revolving dial 223, second drive motor 231 is fixed by electric machine support 232, second slowing-down structure 233 is connected with the second drive motor 231, tilt mount 234 and the second slowing-down structure 233 link, and the fixture 24 of photovoltaic battery panel is supported by tilt mount 234.
In some embodiments of the invention, first drive motor 221 and the second drive motor 231 are stepper motor, and such as, in Fig. 2, the first drive motor 221 and the second drive motor 231 are vertical stepper motor, stepper motor dependable performance is accurate for angular metric course changing control.Export to improve moment of torsion, the first slowing-down structure 222 and the second slowing-down structure 233 are small sized turbine worm speed-down structure.
Wherein, namely the parallactic angle between east and west that first drive motor 221 and the first slowing-down structure 222 coordinate to adjust revolving dial 223 adjusts the parallactic angle between east and west of photovoltaic battery panel, particularly, controller 30 sends thing regulable control signal to the first drive motor 221, first drive motor 221 according to current time and regulates power transmission to carry out the azimuthal adjustment of thing to revolving dial 223 to drive photovoltaic battery panel thing according to this thing regulable control signal by the first slowing-down structure.Second drive motor 231 and the second slowing-down structure 233 coordinate to adjust the luffing angle of photovoltaic battery panel and capsule by the elevation angle in direction, particularly, second drive motor 231 exports preset angular movement power to tilt mount 234 according to the north and south regulable control signal of controller 30 by the second slowing-down structure 233, such as, second slowing-down structure 233 exports certain angular motion by worm drive and acts on tilt mount 234, regulates with the elevation angle driving photovoltaic battery panel to carry out North and South direction.Thus realize the photovoltaic battery panel moment just to solar incident angle, improve the utilization factor of sun power.
Be understandable that, in order to more accurately control the angle of photovoltaic battery panel, need the ratio of gear reasonably choosing turbine and worm slowing-down structure, in actual design, the ratio of gear that can select is that 50:1 can reach requirement, and such as, the turbine and worm slowing-down structure for east-west direction adjustment is set as the ratio of gear of 2:1, the turbine and worm slowing-down structure that North and South direction regulates is designed to the ratio of gear of 10:1, and Angle ambiguity is convenient.
As shown in Figure 3, wherein, stepper motor is horizontal stepper motor, namely says, changes the control mode of revolving dial in Fig. 2 223 into horizontal stepper motor by vertical motor.In addition, the first slowing-down structure 222 and the second slowing-down structure 233 can turn read/write architecture for cam, namely say, worm drive slowing-down structure can be switched to cam rotating speed structure, thus system architecture is more simple, and cost reduces further.
Further, in one embodiment of the invention, as shown in Figure 4, the tracking regulating device 100 of the embodiment of the present invention also comprises light sensor 40, light sensor 40 detects present level angle and the present orientation angle of the sun, such as, in the related, by elevation angle and the position angle of several such as three or four photoresistance detection sun.Controller 30 calculates true altitude angle and the true bearing angle of photovoltaic battery panel, in an embodiment of the present invention, moved and luffing angle by the thing of step motor control photovoltaic battery panel, thus controller 30 can calculate according to the rotational angle of drive motor and rotation period and obtain the true altitude angle of photovoltaic battery panel and the true bearing angle of the angle of pitch and east-west direction, and then controller 30 regulates photovoltaic battery panel according to the present level angle of the sun and the true altitude angle of present orientation angle and photovoltaic battery panel and true bearing angle, as shown in Figure 4, physical location (angle of pitch and the position angle) data of controller 30 pairs of photovoltaic battery panels process, and the data after process and the current elevation angle of the sun and position angle are compared, then by the signal feedback after relatively to topworks's such as the first drive motor 221 and the second drive motor 231, and then action is adjusted to photovoltaic battery panel, make the photovoltaic battery panel moment just to the incident angle of the sun, improve the utilization factor to sun power.
As shown in Figure 5, follow the trail of regulating device 100 and also comprise light intensity detector 50, light intensity detector 50 is for detecting the current light intensity of the sun, and controller 30 follows the trail of the start and stop of regulating device 100 according to current light strength control.Particularly, can be detected by light-intensity test instrument and obtain intensity of illumination or detected by photoelectric sensor and then calculate intensity of illumination, cloudy day or the sun by cloud cover time, the intensity of illumination of the sun is very weak, photovoltage and the electric current of photovoltaic battery panel are less, generated energy is minimum, continue to follow the tracks of the sun by the tracking regulating device 100 of the application nonsensical, now can stop following the tracks of, namely, when controller 30 judges that current light intensity is less than threshold value, control to follow the trail of regulating device 100 and stop action.
Further, light intensity detector 50 can arrange multiple, and the average according to multiple light intensity detector 40 detected value carries out on off control, erroneous judgement can be avoided, such as, appear relatively bright light in somewhere, the remotest places, follow the trail of regulating device 100 and also can not mislead tracking, thus can preventing stray light interference.
In addition, as shown in Figure 5, the tracking regulating device 100 of the photovoltaic battery panel of the application also arranges start stop operation unit 60 i.e. hand control switch, start stop operation unit 60 receives start stop operation instruction, controller 30 controls the start and stop of following the trail of regulating device 100 according to start stop operation instruction, to facilitate debugging.
As shown in Figure 5, this tracking regulating device 100 also comprises locating device 70 and Weather information receiving terminal 80, locating device 70, such as GPS locates time service module, for the geographic position belonging to location tracking regulating device 100, and send a request to weather forecast service end such as weather forecast platform according to geographic position, Weather information receiving terminal 80 receives Weather information corresponding to this geographic position that weather forecast service end sends, namely say, can the Changes in weather information of real-time reception locality, when controller 30 is judged as special weather circumstances according to Weather information, carry out early warning and control to follow the trail of regulating device 100 stopping following the trail of.Particularly, when weather is more severe, such as, when there is heavy rain, strong wind, sandstorm, carry out early warning in advance, control to follow the trail of regulating device 100 and stop following the tracks of, ensure safety and the grid-connected system stability of this tracking regulating device 100.After the sunrise that disperses like the clouds, these tracking regulating device 100 summary responses, the location elevation angle of the sun and position angle, controller 30 controls to turn to governor motion 20 to regulate the position of photovoltaic battery panel with just to the emission angle of the sun, and tracking puts in place.After having arrived the dusk, sunray disappears, can not generate electricity, then the detected value of light intensity detector 40 when being less than threshold value feedback signal to controller 30, controller 30 controls this tracking regulating device 100 to be stopped following the trail of, and by turning to governor motion 20 to regulate photovoltaic battery panel to return to original position, east, wait for sunrise in second day, enter the loop cycle of second day, simultaneous altitude angle rotating mechanism rotates, and solar panel is rotated to extreme lower position, to reduce windage, now, tracking regulating device 100 is in and stops tracking state night.Be understandable that, this tracking regulating device 100 does not need to set reference position, never gets lost, realizes the object of self-adoptive trace.
In addition, in order to prevent turning to governor motion 20 to occur the situation of overstepping the limit when regulating photovoltaic battery panel, four limit switches can be established altogether at the thing regulon 22 i.e. two ends terminal of position angle rotational structure and the north and south regulon 23 i.e. terminal up and down of elevation angle rotational structure, particularly, comprise the first limit switch, second limit switch, 3rd limit switch and the 4th limit switch, first limit switch is arranged on the initial position of thing regulon 22, second limit switch is arranged on the final position of thing regulon 23, 3rd limit switch is arranged on the initial position of north and south regulon 23, 4th limit switch is arranged on the final position of north and south regulon 23.
Put it briefly, the tracking regulating device 100 of the photovoltaic battery panel of the embodiment of the present invention, substantially detecting unit such as light sensor 40, light intensity detector 50 can be divided into, timing unit is timer 10 such as, processing unit is controller 30 such as, driver element is the first drive motor 221 and the second drive motor 231 such as, and deceleration unit is the first slowing-down structure 222 and the second slowing-down structure 233 such as, and mechanical performance element is each platform and support such as.Processing unit according to the action of the time service of time service unit to detecting unit, driver element, deceleration unit and mechanical performance element, the protection can also be correlated with to processing unit, driver element, mechanical performance element by protected location.Driver element outputting power makes mechanical performance element send action through deceleration unit, thus the position of adjustment photovoltaic battery panel, make it just to sun emission angle, realize the tracking to position of sun, improve the utilization factor to sun power.
Based on the tracking regulating device of the photovoltaic battery panel of above-mentioned aspect embodiment, the present invention on the other hand embodiment proposes a kind of photovoltaic power supply system.
Fig. 6 is the block diagram of photovoltaic power supply system according to an embodiment of the invention, as shown in Figure 6, this photovoltaic power supply system 1000 comprise above-mentioned aspect tracking regulating device 100, with electric loading 200 and photovoltaic generating system 300.
Wherein, photovoltaic generating system 300 comprises photovoltaic battery panel 301 and control device 302, elevation angle and the position angle of following the trail of regulating device 100 pairs of photovoltaic battery panels 301 regulate, to make photovoltaic battery panel directly to the emission angle of the sun, the electric energy that control device 302 produces according to photovoltaic battery panel 301 is for power by electric loading 200, thus be embodied as electric loading 200 photovoltaic power supply, reduce electrical network power consumption.
The photovoltaic power supply system 1000 of the embodiment of the present invention, regulated by the elevation angle and position angle of following the trail of regulating device 100 pairs of photovoltaic battery panels 301, the utilization factor to sun power can be improved, the electric energy that control device 302 produces according to photovoltaic battery panel 301 realizes the photovoltaic power supply by electric loading 200, reduces the consumption to electrical network.
The photovoltaic power supply system 1000 of the embodiment of the present invention can exchange point and direct current for air-conditioning or other loads of family provide, DC load 201 and AC load 202 is comprised by electric loading 200, the direct current of certain voltage and phase frequency can be provided on the one hand, on the other hand, as shown in Figure 7, photovoltaic power supply system 1000 can also comprise photovoltaic DC-to-AC converter 400, by photovoltaic DC-to-AC converter 400 for user provides alternating current.Particularly, the first output terminal of control device 302 and the input end of DC load 201, control device 302 exports direct current to DC load 201 such as direct current varied-frequency air conditioner.Second output terminal of control device 302 is connected with the input end of photovoltaic DC-to-AC converter 400, the output terminal of photovoltaic DC-to-AC converter 400 connects the input end of AC load 202 such as AC frequency conversion air conditioner, by output AC electricity after photovoltaic DC-to-AC converter inversion to AC load 202, thus be embodied as and carry out photovoltaic power supply by electric loading 200, reduce the dependence to mains supply.
As shown in Figure 7, photovoltaic power supply system 1000 also comprises battery pack 500, battery pack 500 is connected with control device 302, the discharge and recharge of the controlling electric energy battery pack 500 that control device 302 produces according to photovoltaic battery panel 301, such as, when electricity is greater than charge threshold, control battery pack 500 to charge, otherwise, not enough at electricity, and when working by electric loading 200, control battery pack 500 and discharge and to work with work electric loading 200.
Based on the tracking regulating device of the photovoltaic battery panel of above-mentioned aspect embodiment, the present invention proposes a kind of photovoltaic battery panel control method on the one hand.
Fig. 8 is the process flow diagram of photovoltaic battery panel control method according to an embodiment of the invention, and as shown in Figure 8, this photovoltaic battery panel control method comprises the following steps:
S1, obtains current time, and judges current time whether in preset time period.
Preset time period can be understood as the time period that there is sunshine in one day, and such as, preset time period is 6:00-18:00, the device darg namely regulated photovoltaic battery panel 12 hours.
S2, if current time is in preset time period, then regulates elevation angle to the first predetermined angle of the North and South direction of photovoltaic battery panel.
Particularly, the first predetermined angle can be defined as 0.12 ° by calculating.
S3, regulates thing azimuthal variation second predetermined angle of photovoltaic battery panel every Preset Time.
Such as, the thing azimuthal variation 15 ° of photovoltaic battery panel was regulated every 1 hour.
According to the photovoltaic battery panel control method of the embodiment of the present invention, according to current time data, the elevation angle of the North and South direction of photovoltaic battery panel and parallactic angle between east and west are regulated, thus can in real time to the position angle of the sun and effective tracking of north and south elevation angle, make photovoltaic battery panel vertical with position of sun, improve the utilization factor to sun power.
Further, after judging that current time reaches the lower limit time point such as 18:00 of preset time period, regulate photovoltaic battery panel to return initial position, enter next circulation, wait for the adjustment of second day.
According to the above description, regulate 0.12 ° for the north and south elevation angle of 6:00-18:00 time period, photovoltaic battery panel, regulated the thing azimuthal variation 15 ° of photovoltaic battery panel every one hour, adjustment process is described.Fig. 9 is the process flow diagram of the photovoltaic battery panel control method according to a specific embodiment of the present invention, and as shown in Figure 9, this control method comprises:
S100, reads the time data of timing unit.
S110, judges whether current time is 6:00, if so, then enters step S120, otherwise returns step S100.
S120, turns to according to calculating the north and south of gained angle such as 0.12 ° by pitching drive motor control photovoltaic battery panel.
S130, continues to read the time data in timing unit.
S140, judges whether current time is 18:00, if so, then enters step S170, otherwise enters step S150.
S150, judges whether current time is integral point, if so, then enters step S160, otherwise returns step S130.
S160, east-west direction drive motor controls photovoltaic battery panel and turns over 15 ° westwards.
S170, controls photovoltaic battery panel and returns the initial position before for sunrise.
In one embodiment of the invention, when regulating photovoltaic battery panel, detect present level angle and the present orientation angle of the sun, such as, in the related, by elevation angle and the position angle of several such as three or four photoresistance detection sun, and calculate true altitude angle and the true bearing angle of photovoltaic battery panel, in an embodiment of the present invention, moved and luffing angle by the thing of step motor control photovoltaic battery panel, thus can calculate according to the rotational angle of drive motor and rotation period and obtain the true altitude angle of photovoltaic battery panel and the true bearing angle of the angle of pitch and east-west direction, and then according to the present level angle of the sun and the true altitude angle of present orientation angle and photovoltaic battery panel and true bearing angle, photovoltaic battery panel is regulated.
Besides, can realize controlling the automatic start-stop of regulating device, particularly, detect the current light intensity of the sun, according to the start and stop of the tracking regulating device of current light strength control photovoltaic battery panel.Particularly, can be detected by light-intensity test instrument and obtain intensity of illumination or detected by photoelectric sensor and then calculate intensity of illumination, cloudy day or the sun by cloud cover time, the intensity of illumination of the sun is very weak, and photovoltage and the electric current of photovoltaic battery panel are less, and generated energy is minimum, nonsensical by following the trail of the regulating device continuation tracking sun, now can stop following the tracks of, when namely judging that current light intensity is less than threshold value, control to follow the trail of regulating device and stop action.Also passable, manually operating switch realizes the manual control of start and stop.
In addition, locating device and weather forecast receiving terminal can also be set in tracking regulating device, particularly, the geographic position belonging to location tracking regulating device, and send a request to weather forecast service end according to geographic position; Receive the Weather information that geographic position that weather forecast service end sends is corresponding, and when being judged as special weather circumstances according to Weather information, carry out early warning and the tracking regulating device controlling photovoltaic battery panel stops following the trail of.Such as, when heavy rain, strong wind, sandstorm, carry out early warning in advance, control to follow the trail of regulating device and stop following the tracks of, ensure safety and the grid-connected system stability of this tracking regulating device.
It should be noted that, describe and can be understood in flow charts or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this instructions, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), ROM (read-only memory) (ROM), erasablely edit ROM (read-only memory) (EPROM or flash memory), fiber device, and portable optic disk ROM (read-only memory) (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanning to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer memory.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims (10)

1. a tracking regulating device for photovoltaic battery panel, is characterized in that, comprising:
Timer, for recording current time;
Turn to governor motion, the described governor motion that turns to comprises base element, thing regulon and north and south regulon, wherein, the between east and west parallactic angle of described thing regulon to photovoltaic battery panel regulates, and the described north and south elevation angle of regulon to the North and South direction of described photovoltaic battery panel regulates; With
Controller, described controller obtains current time, and judge described current time whether in preset time period, and when described current time is in described preset time period, control elevation angle to the first predetermined angle that described north and south regulon regulates the North and South direction of described photovoltaic battery panel, and control every Preset Time thing azimuthal variation second predetermined angle that described thing regulon regulates described photovoltaic battery panel.
2. the tracking regulating device of photovoltaic battery panel as claimed in claim 1, it is characterized in that, described base element comprises:
Base;
Support member and return unit, described support member is positioned on described base, and described support member and the cooperation of described return unit are carried out height to described photovoltaic battery panel and regulated; With
Hoistable platform, described hoistable platform is positioned on described support member.
3. the tracking regulating device of photovoltaic battery panel as claimed in claim 2, is characterized in that,
Described thing regulon comprises:
First drive motor, described first drive motor is fixed on described hoistable platform;
First slowing-down structure, described first slowing-down structure and described first drive motor are rigidly connected; With
Revolving dial, described revolving dial is fixedly installed on described first slowing-down structure;
Described north and south regulon comprises:
Second drive motor and electric machine support, described electric machine support is fixedly installed on described revolving dial, and described second drive motor is fixed by described electric machine support;
Second slowing-down structure, described second slowing-down structure is connected with described second drive motor; With
Tilt mount, described tilt mount and described second slowing-down structure link, and the fixture of described photovoltaic battery panel is supported by described tilt mount;
Wherein, thing regulates power transmission to described revolving dial to carry out the azimuthal adjustment of thing to drive described photovoltaic battery panel according to the thing regulable control signal of described controller by described first slowing-down structure by described first drive motor; And
Described second drive motor exports preset angular movement power to described tilt mount according to the north and south regulable control signal of described controller by the second slowing-down structure, regulates with the elevation angle driving described photovoltaic battery panel to carry out North and South direction.
4. the tracking regulating device of photovoltaic battery panel as claimed in claim 1, is characterized in that, also comprise:
Locating device and Weather information receiving terminal, described locating device is for locating the geographic position belonging to described tracking regulating device, and send a request to weather forecast service end according to described geographic position, described Weather information receiving terminal receives Weather information corresponding to described geographic position that described weather forecast service end sends, when described controller is judged as special weather circumstances according to described Weather information, carry out early warning and control described tracking regulating device stopping following the trail of.
5. the tracking regulating device of photovoltaic battery panel as claimed in claim 1, it is characterized in that, described controller is also for after judging that described current time reaches the lower limit time point of described preset time period, control described north and south regulon and described thing regulon to carry out respectively oppositely regulating to make described photovoltaic battery panel return initial position, wherein, described tracking regulating device also comprises:
First limit switch and the second limit switch, described first limit switch is arranged on the initial position of described thing regulon, and described second limit switch is arranged on the final position of described thing regulon; With
3rd limit switch and the 4th limit switch, described 3rd limit switch is arranged on the initial position of described north and south regulon, and described 4th limit switch is arranged on the final position of described north and south regulon.
6. a photovoltaic power supply system, is characterized in that, comprising:
Tracking regulating device as described in any one of claim 1-5;
By electric loading;
Photovoltaic generating system, described photovoltaic generating system comprises photovoltaic battery panel and control device, described tracking regulating device regulates the elevation angle of described photovoltaic battery panel and position angle, and described control device is described electricity consumption load supplying according to the electric energy that described photovoltaic battery panel produces.
7., based on a photovoltaic battery panel control method for tracking regulating device according to claim 1, it is characterized in that, comprise the following steps:
Obtain current time, and judge described current time whether in preset time period;
If described current time is in described preset time period, then regulate elevation angle to the first predetermined angle of the North and South direction of photovoltaic battery panel; And
Thing azimuthal variation second predetermined angle of described photovoltaic battery panel is regulated every Preset Time.
8. photovoltaic battery panel control method as claimed in claim 7, is characterized in that, also comprise:
Detect present level angle and the present orientation angle of the sun, and calculate true altitude angle and the true bearing angle of described photovoltaic battery panel; And
According to the present level angle of the described sun and the true altitude angle of present orientation angle and described photovoltaic battery panel and true bearing angle, described photovoltaic battery panel is regulated.
9. photovoltaic battery panel control method as claimed in claim 8, is characterized in that, also comprise:
Detect the current light intensity of the sun, the start and stop of the tracking regulating device of photovoltaic battery panel according to described current light strength control.
10. photovoltaic battery panel control method as claimed in claim 7, is characterized in that, also comprise:
Locate the geographic position belonging to described tracking regulating device, and send a request to weather forecast service end according to described geographic position; And
Receive Weather information corresponding to described geographic position that described weather forecast service end sends, and when being judged as special weather circumstances according to described Weather information, carry out early warning and the tracking regulating device controlling described photovoltaic battery panel stops following the trail of.
CN201510579448.8A 2015-09-11 2015-09-11 Photovoltaic cell panel tracking adjusting device and adjusting method and photovoltaic power supply system Pending CN105159331A (en)

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CN107992101A (en) * 2017-12-30 2018-05-04 宁波森赛威尔新能源科技有限公司 A kind of solar attachment for being capable of adjust automatically irradiation position
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CN105576802A (en) * 2016-01-27 2016-05-11 国网山西省电力公司运城供电公司 Household photovoltaic power generation system
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CN107992101A (en) * 2017-12-30 2018-05-04 宁波森赛威尔新能源科技有限公司 A kind of solar attachment for being capable of adjust automatically irradiation position
CN109408931A (en) * 2018-10-15 2019-03-01 珠海格力电器股份有限公司 A kind of photovoltaic energy plate dynamic regulating method, system, PV air-conditioner

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Application publication date: 20151216