CN202995471U - Automatic tracking device of photovoltaic cell maximum exposure dose - Google Patents

Automatic tracking device of photovoltaic cell maximum exposure dose Download PDF

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Publication number
CN202995471U
CN202995471U CN2012203618958U CN201220361895U CN202995471U CN 202995471 U CN202995471 U CN 202995471U CN 2012203618958 U CN2012203618958 U CN 2012203618958U CN 201220361895 U CN201220361895 U CN 201220361895U CN 202995471 U CN202995471 U CN 202995471U
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CN
China
Prior art keywords
battery panel
photovoltaic cell
photovoltaic battery
tooth bar
photovoltaic
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Withdrawn - After Issue
Application number
CN2012203618958U
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Chinese (zh)
Inventor
康龙云
魏业文
林玉健
姜凯
赵先娴
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN2012203618958U priority Critical patent/CN202995471U/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
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

The utility model discloses an automatic tracking device of a photovoltaic cell maximum exposure dose. The automatic tracking device of the photovoltaic cell maximum exposure dose comprises a photovoltaic cell, a transmission system and a control circuit, wherein the photovoltaic cell comprises a photovoltaic cell panel and a fixing support used for supporting the photovoltaic cell panel, and the photovoltaic cell panel is in hinge joint on the fixing support symmetrically; the transmission system is connected with the two ends of the photovoltaic cell panel separately and is arranged in the middle parts of the edges at the two ends; and the control circuit comprises a current voltage sampling circuit and a motor driving circuit, and wherein the current voltage sampling circuit is electrically connected with the photovoltaic cell panel, the motor driving circuit is electrically connected with the transmission system, and the current voltage sampling circuit and the motor driving circuit are electrically connected. The actual feasible automatic tracking device of the photovoltaic cell maximum exposure dose is designed in the utility model, has a simpler system structure, does not need an external power supply, and can track the photovoltaic cell maximum exposure dose automatically and rapidly.

Description

A kind of photovoltaic cell maximum permissible exposure autotracker
Technical field
The utility model photovoltaic cell relates to technical field, particularly a kind of photovoltaic cell maximum permissible exposure autotracker.
Background technology
Sun power is one of topmost regenerative resource on the earth, has the advantages such as reserves are large, distribution is wide, cleanliness without any pollution, is the most important energy sources of Future Social Development.At present, the utilization of sun power is mainly comprised photo-thermal effect and photovoltaic effect two aspects.Wherein, the research of photovoltaic power generation technology and application have huge development space.
Solar electrical energy generation refers to utilize photovoltaic battery panel that sun power is changed into electric energy, and the efficient of photovoltaic generation refers to that photovoltaic cell output electric energy accounts for the number percent of the sun power irradiation in unit area.Due to the restriction that is subject to photovoltaic cell material itself, the photoelectric transformation efficiency of photovoltaic battery panel generally only has between 14% ~ 20%, the highlyest is no more than 40%; Another factor that affects photoelectric transformation efficiency is the installation method of photovoltaic battery panel, i.e. the design of pitch angle and elevation angle.The selection of elevation angle is generally take local latitude and floor area as Main Basis, and in specific latitude area, the design comparison of elevation angle is simple; The design at pitch angle generally follow the annual electricity generating capacity equilibrium principle or summer the generated energy maximum principle etc.No matter be the sort of principle, all have the pitch angle in case the fixing problem that just can't change; So just caused day, the annual electricity generating capacity of photovoltaic cell greatly to reduce.
The utility model content
Goal of the invention of the present utility model is the technical deficiency for existing photovoltaic cell, and a kind of increase day, annual electricity generating capacity and practical fast accurate photovoltaic cell maximum permissible exposure autotracker are provided.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of photovoltaic cell maximum permissible exposure autotracker is provided, comprises photovoltaic cell, kinematic train and control circuit; Wherein, photovoltaic cell comprises photovoltaic battery panel and be used for to support the fixed support of photovoltaic battery panel, and described photovoltaic battery panel symmetry is articulated on fixed support; Described kinematic train is connected with photovoltaic battery panel two ends respectively, and is located at the middle part of edges at two ends; Described control circuit comprises current-voltage sampling circuit and motor-drive circuit; Wherein, current-voltage sampling circuit is electrically connected to photovoltaic battery panel, and motor-drive circuit is electrically connected to kinematic train, and current-voltage sampling circuit and motor-drive circuit are electrically connected to.
Preferably, described fixed support base plane towards the Due South on the installation of photovoltaic cell ground to and with the angle of surface level be , =local latitude- , Get 2 ° ~ 5 °.
Preferably, described photovoltaic battery panel can rotate around the fixed support pin joint, and in the situation that is not subjected to external force can keep stable.
Preferably, described current-voltage sampling circuit comprises photovoltaic battery panel maximal power tracing circuit and sensor, described photovoltaic battery panel maximal power tracing circuit is electrically connected to photovoltaic battery panel by connection box for photovoltaic battery board, and described photovoltaic battery panel maximal power tracing circuit is connected with sensor electrical by dc bus.
Preferably, described motor-drive circuit comprises single-chip microcomputer and motor, and described sensor is electrically connected to single-chip microcomputer; The output voltage electric current of described sensor sample photovoltaic battery panel is also sent in single-chip microcomputer, and single-chip microcomputer carries out power calculation and produce driving signal to control motor positive and inverse; Motor output end connection for transmission system.Motor adopts direct current generator.
Preferably, described kinematic train comprises transmission gear, driven gear, the first tooth bar, the second tooth bar and right angle sleeve, and transmission gear is coupled by driven by motor and with the first tooth bar; Driven gear and the coupling of the second tooth bar; Described transmission gear drives driven gear by the break-in governor gear and connects, and wherein, the break-in governor gear is coupled with transmission gear, driven gear respectively; One end of described the first tooth bar, the second tooth bar is connected with the two ends of photovoltaic battery panel respectively, and photovoltaic battery panel can not rotate around pin joint; The other end of described the first tooth bar, the second tooth bar accesses respectively two right angle sleeves, makes the first tooth bar, the second tooth bar remain plumbness.
Preferably, the inclination angle between described photovoltaic battery panel broadside and fixed support is , Get-60 ° ~ 60 °; And the step-length of tilt adjustment is , Get 2 ° or 5 °.Can be by the size that elongates or shortens of inclination angle step size computation the first tooth bar and the first tooth bar, and then design the number of teeth of each gear of gear set and the rotational speed of motor, and then realize that power detection, photovoltaic battery panel tilt adjustment and peak power output follow the tracks of.
A kind of method that adopts above-mentioned photovoltaic cell maximum permissible exposure autotracker comprises the steps: under the top rake condition output rated power that the solar radiation that the sensor sample photovoltaic battery panel receives generates electricity; This power and previous detection power are compared, thus control motor just/reverse directions and revolution; Motor just/counter-rotating driven gear group just/counter-rotating, thereby drag the first tooth bar and the second tooth bar extension/contraction; Along with the variation of the first tooth bar and the second tooth bar length, it is vertical with the photovoltaic battery panel face that the inclination angle of photovoltaic battery panel changes to adjust the direct sunlight line thereupon, thus realize the photovoltaic cell maximum permissible exposure from motion tracking.
The utility model has following beneficial effect with respect to prior art:
1, the utility model has designed a kind of practicable photovoltaic cell maximum permissible exposure autotracker, and system architecture is comparatively simple, does not need externally fed, can realize that maximum permissible exposure is from motion tracking fast.
2, proposition of the present utility model is conducive to improve the generating efficiency of photovoltaic cell, increases photovoltaic cell day, average annual energy output; Of the present utility model simple and reasonable for structure, and cost is lower, can reach energy-conservation requirement.
Description of drawings
Fig. 1 is that photovoltaic cell maximum permissible exposure autotracker makes structural representation;
Fig. 2 is the side view of photovoltaic cell maximum permissible exposure autotracker;
Fig. 3 is the angle schematic diagram of fixed support base of the present utility model and surface level;
Fig. 4 is the inclination angle schematic diagram between photovoltaic battery panel and fixed support in the present embodiment;
Fig. 5 is tooth bar when stretching out, the inclination angle schematic diagram between photovoltaic battery panel and fixed support;
Fig. 6 is tooth bar when stretching into, the inclination angle schematic diagram between photovoltaic battery panel and fixed support.
Embodiment
Below in conjunction with the drawings and specific embodiments, utility model purpose of the present utility model is described in further detail, embodiment can not give unnecessary details one by one at this, but therefore embodiment of the present utility model is not defined in following examples.Unless stated otherwise, material and the job operation of the utility model employing are the art conventional material and job operation.
As shown in Figure 1, a kind of photovoltaic cell maximum permissible exposure autotracker of practicality.This device mainly comprises photovoltaic cell, control circuit and rack-and-pinion kinematic train.Photovoltaic cell comprises photovoltaic battery panel 2 and is used for supporting the fixed support 15 of photovoltaic battery panel.Wherein, photovoltaic battery panel be of a size of long limit (120cm) * broadside (80cm) and output rated power be 200W.Photovoltaic battery panel 2 symmetries are articulated on fixed support 15; The pin joint 4 of fixed support and photovoltaic battery panel is positioned at the broadside mid point and all the time perpendicular to the photovoltaic battery panel face.Photovoltaic battery panel 2 can rotate around fixed support pin joint 4, and in the situation that is not subjected to external force can keep stable.
Control circuit part is comprised of current-voltage sampling circuit 18 and motor-drive circuit 19, and current-voltage sampling circuit 18 is by sensor and divider resistance sample respectively electric current and the voltage of photovoltaic cell output terminal; Then sensor is with the current/voltage input single-chip microcomputer of sampling, and single-chip microcomputer carries out Power arithmetic and direct current generator 20 is controlled.
Current-voltage sampling circuit 18 comprises photovoltaic battery panel maximal power tracing circuit 16 and sensor, photovoltaic battery panel maximal power tracing circuit 16 is electrically connected to photovoltaic battery panel 2 by connection box for photovoltaic battery board 3, and photovoltaic battery panel maximal power tracing circuit 16 is connected with sensor electrical by dc bus 17.
Motor-drive circuit 19 comprises single-chip microcomputer and motor, and sensor is electrically connected to single-chip microcomputer; The output voltage electric current of sensor sample photovoltaic battery panel is also sent in single-chip microcomputer, and single-chip microcomputer carries out power calculation and produce driving signal to control motor positive and inverse; Motor output end connection for transmission system.Motor adopts direct current generator 20.Sensor adopts Hall current sensor.
Kinematic train comprises transmission gear 9, driven gear 8, the first tooth bar 6, the second tooth bar 10 and right angle sleeve 11,12,13, and transmission gear 9 is driven by direct current generator 20 and is coupled with the first tooth bar 6.Driven gear 8 and the second tooth bar 10 couplings.Transmission gear 9 drives driven gear 8 by break-in governor gear 7 and connects.Wherein, break-in governor gear 7 is coupled with transmission gear 9, driven gear 8 respectively.One end of the first tooth bar 6, the second tooth bar 10 is connected with the middle part of the edges at two ends of photovoltaic battery panel 2 respectively, and photovoltaic battery panel 2 can not rotate around pin joint, and the pin joint degree of freedom is zero.The other end of the first tooth bar 6, the second tooth bar 10 accesses respectively two right angle sleeves 11 and 13, makes the first tooth bar 6, the second tooth bar 10 tooth bars remain plumbness.
As shown in Figure 2, fixed support base plane 21 is parallel with photovoltaic battery panel plate face, and this plane and surface level are intersected, towards the Due South that ground is installed to and with horizontal plane angle be , =local latitude- , Get between 2 ° ~ 5 °.In addition, keep both intersections parallel with the broadside of photovoltaic battery panel; Photovoltaic battery panel can rotate freely at photovoltaic panel plate face vertical plane around the fixed support pin joint, and keeps stable in the situation that not affected by external force, thereby does not shake.
Control circuit directly obtains the control power supply by photovoltaic battery panel, I, U are output current and the voltage of the photovoltaic cell of sampling respectively by Hall current sensor and divider resistance, sampled signal is sent into single-chip microcomputer, carry out power calculation and comparison, the output control signal drives direct current generator and turns to (just or instead) and revolution; Motor driven gear rotates, and makes the tooth bar left and right or moves up and down, as shown in Fig. 4,5,6.
Because an end of the first tooth bar 6, the second tooth bar 10 connects respectively photovoltaic battery panel middle part, long limit and the pin joint degree of freedom is zero; The other end of the first tooth bar 6, the second tooth bar 10 inserts respectively in two right angle sleeves 11 and 13, therefore, when gear along or when rotating counterclockwise, the first tooth bar 6 stretches into or shortens the length increase of right angle sleeve 11, the second tooth bar stretches out or the length that shortens right angle sleeve 13 also increases, thereby the inclination angle of photovoltaic battery panel 2 is changed.
Inclination angle between photovoltaic battery panel and fixed support is , Get-60 ° ~ 60 °; And the step-length of tilt adjustment is , Get 2 ° or 5 °; By the size that elongates or shortens of inclination angle step size computation the first tooth bar 6 and the second tooth bar 10, and then design the number of teeth of each gear and the rotational speed of direct current generator, and then realize power detection, photovoltaic battery panel tilt adjustment and peak power output tracking.
A kind of method that adopts above-mentioned photovoltaic cell maximum permissible exposure autotracker comprises the steps: under the top rake condition output rated power that the solar radiation that the sensor sample photovoltaic battery panel receives generates electricity; This power and previous detection power are compared, thus control direct current generator 20 just/reverse directions and revolution; Direct current generator 20 just/counter-rotating driven gear group just/counter-rotating, thereby drag the extension/contraction of the first tooth bar 6 and the second tooth bar 10; Along with the variation of the first tooth bar 6 and the second tooth bar 10 length, it is vertical with the photovoltaic battery panel face that the inclination angle of photovoltaic battery panel 2 changes to adjust the direct sunlight line thereupon, thus realize the photovoltaic cell maximum permissible exposure from motion tracking.
Above-described embodiment is only preferred embodiment of the present utility model, is not to limit practical range of the present utility model.Be that all equalizations of doing according to the utility model content change and modify, all contained by the utility model claim scope required for protection.

Claims (7)

1. a photovoltaic cell maximum permissible exposure autotracker, is characterized in that: comprise photovoltaic cell, kinematic train and control circuit; Wherein, photovoltaic cell comprises photovoltaic battery panel and be used for to support the fixed support of photovoltaic battery panel, and described photovoltaic battery panel symmetry is articulated on fixed support; Described kinematic train is connected with photovoltaic battery panel two ends respectively, and is located at the middle part of edges at two ends; Described control circuit comprises current-voltage sampling circuit and motor-drive circuit; Wherein, current-voltage sampling circuit is electrically connected to photovoltaic battery panel, and motor-drive circuit is electrically connected to kinematic train, and current-voltage sampling circuit and motor-drive circuit are electrically connected to.
2. photovoltaic cell maximum permissible exposure autotracker according to claim 1 is characterized in that: described fixed support base plane towards the Due South on the installation ground of photovoltaic cell to and with the angle of surface level be , =local latitude- , Get 2 ° ~ 5 °.
3. photovoltaic cell maximum permissible exposure autotracker according to claim 1 is characterized in that: described photovoltaic battery panel can rotate around the fixed support pin joint, and in the situation that is not subjected to external force can keep stable.
4. according to claim 1-3 described photovoltaic cell maximum permissible exposure of any one autotrackers, it is characterized in that: described current-voltage sampling circuit comprises photovoltaic battery panel maximal power tracing circuit and sensor, described photovoltaic battery panel maximal power tracing circuit is electrically connected to photovoltaic battery panel by connection box for photovoltaic battery board, and described photovoltaic battery panel maximal power tracing circuit is connected with sensor electrical by dc bus.
5. photovoltaic cell maximum permissible exposure autotracker according to claim 4, it is characterized in that: described motor-drive circuit comprises single-chip microcomputer and motor, described sensor is electrically connected to single-chip microcomputer; The output voltage electric current of described sensor sample photovoltaic battery panel is also sent in single-chip microcomputer, and single-chip microcomputer carries out power calculation and produce driving signal to control motor positive and inverse; Motor output end connection for transmission system.
6. photovoltaic cell maximum permissible exposure autotracker according to claim 5, it is characterized in that: described kinematic train comprises transmission gear, driven gear, the first tooth bar, the second tooth bar and right angle sleeve, and transmission gear is coupled by driven by motor and with the first tooth bar; Driven gear and the coupling of the second tooth bar; Described transmission gear drives driven gear by the break-in governor gear and connects, and wherein, the break-in governor gear is coupled with transmission gear, driven gear respectively; One end of described the first tooth bar, the second tooth bar is connected with the two ends of photovoltaic battery panel respectively, and photovoltaic battery panel can not rotate around pin joint; The other end of described the first tooth bar, the second tooth bar accesses respectively two right angle sleeves, makes the first tooth bar, the second tooth bar remain plumbness.
7. photovoltaic cell maximum permissible exposure autotracker according to claim 1, it is characterized in that: the inclination angle between described photovoltaic battery panel broadside and fixed support is , Get-60 ° ~ 60 °; And the step-length of tilt adjustment is , Get 2 ° or 5 °.
CN2012203618958U 2012-07-24 2012-07-24 Automatic tracking device of photovoltaic cell maximum exposure dose Withdrawn - After Issue CN202995471U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN202995471U true CN202995471U (en) 2013-06-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102778898A (en) * 2012-07-24 2012-11-14 华南理工大学 Automatic tracking device and method of maximum exposure dose of photovoltaic cell
CN106761143A (en) * 2016-12-29 2017-05-31 中铁信安(北京)信息安全技术有限公司 A kind of data are unidirectionally ferried system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102778898A (en) * 2012-07-24 2012-11-14 华南理工大学 Automatic tracking device and method of maximum exposure dose of photovoltaic cell
CN102778898B (en) * 2012-07-24 2015-01-28 华南理工大学 Automatic tracking device and method of maximum exposure dose of photovoltaic cell
CN106761143A (en) * 2016-12-29 2017-05-31 中铁信安(北京)信息安全技术有限公司 A kind of data are unidirectionally ferried system and method

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AV01 Patent right actively abandoned

Granted publication date: 20130612

Effective date of abandoning: 20150128

RGAV Abandon patent right to avoid regrant