CN106230365A - A kind of change according to current value adjusts device and the control method of solar tracking system angle - Google Patents

A kind of change according to current value adjusts device and the control method of solar tracking system angle Download PDF

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Publication number
CN106230365A
CN106230365A CN201610592124.2A CN201610592124A CN106230365A CN 106230365 A CN106230365 A CN 106230365A CN 201610592124 A CN201610592124 A CN 201610592124A CN 106230365 A CN106230365 A CN 106230365A
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Prior art keywords
support frame
rotatable support
current value
tracking system
solar tracking
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CN201610592124.2A
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刘建中
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Individual
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Priority to CN201610592124.2A priority Critical patent/CN106230365A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a kind of change according to current value and adjust device and the control method of solar tracking system angle, the method arranges and opens angle A morning1, night return angle A2, starting current value I1, return current value I2, it is positioned at A at sun altitude1、A2Between time, by the change of detection current value can realize irradiance low when do not follow the tracks of, tracking system is recovered to return/wind resistance guard mode to night by tracking mode, it is to avoid owing to excessive time of wind speed is less than wind resistance state；The angle of solar tracking system is finely adjusted whole, it is ensured that the output of the photovoltaic module being arranged on solar tracking system maximizes, follows the tracks of system cost low, it is adaptable to Distributed Application, improve the reliability of solar tracking system.

Description

A kind of change according to current value adjusts device and the control of solar tracking system angle Method processed
Technical field
The present invention relates to the technical field of photovoltaic power generation technology equipment and control design case, a kind of according to current value Change adjusts device and the control method of solar tracking system angle.
Background technology
The wind resistance of major part solar tracking system is all realized by air velocity transducer at present, and when wind speed reaches anti- During wind numerical value, some solar tracking system will return less than wind resistance state owing to wind speed is relatively big.Before major part blast arrives, The colour of sky all can be dimmed, if the colour of sky can be utilized to be darkened between strong wind arrival during this period of time, makes solar tracking system be back in advance Wind resistance state, will be greatly improved the reliability of solar tracking system.Distributed, due to air velocity transducer for negligible amounts Relatively costly, to apply less, the reliability of solar tracking system lacks guarantee.The when that additionally cloudy day irradiance being relatively low, with Track not only can not improve generated energy and even reduce generated energy, but also consumes electric energy, and therefore irradiance is necessary the when of relatively low Stop following the tracks of.Due to the moon caused by air refraction, scattering, assembly surface dust, foreign body, height above sea level and complicated landform The factors such as shadow blocks affect, and time control is it cannot be guaranteed that the maximum of the output power of photovoltaic module being arranged on solar tracking system Change.
Summary of the invention
It is an object of the invention to provide a kind of according to current value change adjust solar tracking system angle device and Control method, by detection current value change can realize irradiance low when do not follow the tracks of, solar tracking system is by following the tracks of Return/wind resistance guard mode recovering state to night, can avoid owing to excessive time of wind speed is less than wind resistance state；To solar tracking system Angle be finely adjusted whole, it is ensured that the output of the photovoltaic module being arranged on solar tracking system maximizes, and follows the tracks of system System low cost, it is adaptable to Distributed Application, improves the reliability of solar tracking system.
For achieving the above object, the present invention uses following technical proposals:
A kind of according to current value change adjust solar tracking system angle device, including current detection module, can Runing rest, rotatable support frame control module and rotatable support frame driver, the detection of described current detection module is arranged at and can revolve The output current value turning the photovoltaic array on support or the output current value of the current detecting unit being arranged in rotatable support frame, The current output terminal of the input of current detection module and the photovoltaic array being arranged at above rotatable support frame or be arranged at The current output terminal of the current detecting unit above rotatable support frame connects, the outfan of current detection module and rotatable support frame The input of control module connects；
Described rotatable support frame control module includes that GPS interface/reception unit, GPS interface/reception unit obtain rotatable The local time of support infield, warp, latitude coordinate parameter；The outfan of rotatable support frame control module and rotatable support frame The input of driver connects；
Rotatable support frame driver drives rotatable support frame rotates, and rotatable support frame control module controls solar energy tracking system System runs.
A kind of change according to current value adjusts the control method of solar tracking system angle, uses above-mentioned a kind of basis The change of current value adjusts the device of solar tracking system angle, comprises the following steps:
Rotatable support frame control module sets starting current value I of solar tracking system1, return current value I2, morning open angle Degree A1, night return angle A2, wherein I1>I2；
The coordinate that rotatable support frame control module obtains rotatable support frame infield by GPS interface/reception unit is joined Number, and the astronomical constants that the sun being converted into rotatable support frame infield runs, open angle A when the sun rises to morning1Time, can revolve Turning support control module and wake up current detection module up, current detection module starts to detect the defeated of photovoltaic array or current detecting unit Go out current value, when current detection module detects that output current value reaches I1Time, solar tracking system starts to follow the tracks of sun fortune OK, if output current value is not up to I1, continuation is returned/wind resistance guard mode wait at night by solar tracking system, until electric current Detection module detects that output current value reaches I1, solar tracking system starts to follow the tracks of the sun and runs；
Normally follow the tracks of in running at solar tracking system, when current detection module detects that output current value reduces To I2Time, rotatable support frame driver is normally followed the tracks of operation by stopping rotatable support frame, and is driven rotatable support frame to be back to Return/wind resistance guard mode night；
Angle A is returned when the sun runs to night2Time, solar tracking system starts to return, returns/wind resistance guard mode to night, Current detection module quits work.
Further, normally following the tracks of in running at solar tracking system, control module periodically compares photovoltaic Array or the output current value of current detecting unit, and accordingly the in good time angle of solar tracking system is carried out trickle adjustment, It is embodied in: the photovoltaic array of current flow detection module detection or the output current value of current detecting unit are Ia, can revolve Turning bracket driver drives rotatable support frame to continue to rotate forward, and photovoltaic array or electric current that current detection module detects again are examined The output current value surveying unit is Ib；If Ib > Ia, rotatable support frame rotates forward continuing, until output current value no longer increases Add；If output current value Ib < Ia, rotatable support frame reversely rotates, until output current value is not further added by.
The invention has the beneficial effects as follows,
1, detect that output current value is reduced to I when current detection module2Time, runing rest driver will be stopped the rotation and be propped up The tracking of frame runs and is back to return/wind resistance guard mode night, utilizes the colour of sky to be darkened between strong wind arrival during this period of time, makes too Sun can be followed the tracks of system and be back to wind resistance state in advance, and air velocity transducer is played supplementary function, and tracking system can be greatly improved can By property.
2, in the case of the irradiance such as cloudy day are low, solar tracking system is not followed the tracks of, and saves electric energy.
3, solar tracking system low cost of the present invention, it is adaptable to the Distributed Application of negligible amounts, and improve too Sun can follow the tracks of the reliability of system.
4, normally following the tracks of in running at solar tracking system, main control singlechip periodically compares photovoltaic module Output current value, is finely adjusted whole to the angle of solar tracking system, it is ensured that the photovoltaic being arranged on solar tracking system The output of assembly maximizes.
Accompanying drawing explanation
Fig. 1 is that the change according to current value adjusts solar tracking system angle device structural representation；
Fig. 2 is to control, according to size of current, the process chart that solar tracking system starts, returns；
Fig. 3 is that the angle to solar tracking system is finely adjusted whole process chart.
Detailed description of the invention
As it is shown in figure 1, a kind of change according to current value adjusts the device of solar tracking system angle, examine including electric current Surveying module, rotatable support frame, rotatable support frame control module and rotatable support frame driver, solar tracking system can be single Axle tracing system or dual-axis tracking system；The output electricity of the photovoltaic array that current detection module detection is arranged in rotatable support frame Flow valuve or the output current value of current detecting unit being arranged in rotatable support frame, the input of current detection module and setting The outfan of the photovoltaic array above runing rest or with the output cord of photovoltaic array or be arranged at runing rest The outfan of current detecting unit above or be connected with any one in the output cord of current detecting unit, electric current is examined The outfan surveying module is connected with the input of rotatable support frame control module.The output of the photovoltaic array of solar tracking system End is connected with the input of header box or inverter, and the current value of photovoltaic array can be provided by header box or inverter, confluxes The signal output part of case or inverter is connected with the input of the control module of rotatable support frame.
Rotatable support frame control module includes that GPS interface/reception unit, main control singlechip, GPS interface/reception unit obtain Take the acquisition local time of rotatable support frame infield, geographic logitude and the coordinate parameters of latitude, the output of main control singlechip End is connected with the input of rotatable support frame driver；For dual-axis tracking system, rotatable support frame driver includes that driving can Runing rest is followed the tracks of the corner driver of solar azimuth and drives rotatable support frame to follow the tracks of the elevation drive of sun altitude, End corner outfan and the elevation angle respectively with rotatable support frame control module that control of corner driver and elevation drive exports End connects, and corner driver and elevation drive drive rotatable support frame to rotate；For single-shaft tracking system, rotatable support frame is driven Dynamic device includes the corner driver driving rotatable support frame to follow the tracks of solar azimuth, the control end of corner driver and rotatable The corner outfan of frame control module connects, and corner driver drives rotatable support frame rotates.
As in figure 2 it is shown, a kind of control method adjusting solar tracking system angle according to current value change, use above-mentioned A kind of device adjusting solar tracking system angle according to current value change, comprises the following steps: main control singlechip sets too Sun can follow the tracks of starting current value I of system1, return current value I2, morning open angle A1, night return angle A2, wherein I1>I2；Morning opens angle Degree A1, night return angle A2Needing the longitude and latitude according to infield and the ambient As of infield, numerical values recited can be identical Can also be different.Such as in order to improve land utilization ratio, the spacing following the tracks of system is less, can be opened angle A morning1, night return angle Degree A2Numerical value arrange larger, following range is smaller can avoid shadow occlusion.Starting current value I1With return current value I2Come according to the detection data under the different irradiation intensities of photovoltaic module I-V curve under different illumination intensity or infield Set.Here one group of embodiment, starting current value I are given1For 1A, return current value I2For 0.8A；Morning opens angle A1, night return angle Degree A2It is respectively sun altitude 20 degree.
GPS interface/reception unit obtains the coordinate parameters of rotatable support frame infield, main control singlechip being converted into can The astronomical constants that the sun of runing rest infield runs, opens angle A when the sun rises to morning1Time, main control singlechip wakes up electricity up Stream detection module, current detection module starts to detect the output current value of photovoltaic array or current detecting unit, works as current detecting Module detects that output current value reaches I1Time, solar tracking system starts to follow the tracks of the sun and runs, if output current value does not reaches To I1, continuation is returned/wind resistance guard mode wait at night by solar tracking system, until current detection module detects output electricity Flow valuve reaches I1, solar tracking system starts to follow the tracks of the sun and runs；The process that the sun runs is followed the tracks of at solar tracking system In, when current detection module detects that output current value is reduced to I2Time, rotatable support frame driver will stop rotatable support frame Tracking run and drive rotatable support frame to be back to return/wind resistance guard mode night；Angle A is returned when the sun runs to night2Time, too Sun can be followed the tracks of system and return to return/wind resistance guard mode night night, and current detection module quits work.
As it is shown on figure 3, in solar tracking system follows the tracks of running, main control singlechip periodically compares photovoltaic group The output current value of part, is finely adjusted whole to the angle of solar tracking system: rotatable support frame control module is examined according to electric current Survey the photovoltaic array of module current detection or the output current value of current detecting unit is Ia；Rotatable support frame driver drives can Runing rest continues anglec of rotation Ao, and the output current value of current detection module detection photovoltaic array or current detecting unit is Ib；If Ib > Ia, solar tracking system will continue to direction anglec of rotation Ao, current detection module detection photovoltaic module or The output current value of person's current collecting device is Ic, if Ic > Ib, rotatable support frame driver drives rotatable support frame continues to rotate Angle A o, until current value is not further added by；If Ib < Ia, then rotatable support frame driver drives rotatable support frame goes back to former angle And rotating in the opposite direction angle A o, current detection module detects the output current value of photovoltaic array or current detecting unit again For Id, Id,<Ia then rotatable support frame driver drives rotatable support frame goes back to original position, if Id>Ia, rotatable support frame drives Device drives rotatable support frame to continue to rotate in the opposite direction angle A o, and detects current value, until current value is not further added by.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.

Claims (3)

1. the change according to current value adjusts a device for solar tracking system angle, including current detection module, can revolve Turn support, rotatable support frame control module and rotatable support frame driver, it is characterised in that the detection of described current detection module sets The output current value of the photovoltaic array being placed in rotatable support frame or the current detecting unit that is arranged in rotatable support frame defeated Go out current value, the current output terminal of the input of current detection module and the photovoltaic array being arranged at above rotatable support frame or Be connected with the current output terminal of the current detecting unit being arranged at above rotatable support frame, the outfan of current detection module with can The input of runing rest control module connects；
Described rotatable support frame control module includes that GPS interface/reception unit, GPS interface/reception unit obtain rotatable support frame The local time of infield, warp, latitude coordinate parameter；The outfan of rotatable support frame control module drives with rotatable support frame The input of device connects；
Rotatable support frame driver drives rotatable support frame rotates, and rotatable support frame control module controls solar tracking system fortune OK.
2. the change according to current value adjusts a control method for solar tracking system angle, uses described in claim 1 A kind of according to current value change adjust solar tracking system angle device, it is characterised in that comprise the following steps:
Rotatable support frame control module sets starting current value I of solar tracking system1, return current value I2, morning open angle A1, night return angle A2, wherein I1>I2；
Rotatable support frame control module obtains the coordinate parameters of rotatable support frame infield by GPS interface/reception unit, and It is converted into the astronomical constants that the sun of rotatable support frame infield runs, opens angle A when the sun rises to morning1Time, rotatable Frame control module wakes up current detection module up, and current detection module starts to detect the output electricity of photovoltaic array or current detecting unit Flow valuve, when current detection module detects that output current value reaches I1Time, solar tracking system starts to follow the tracks of the sun and runs, if Output current value is not up to I1, continuation is returned/wind resistance guard mode wait at night by solar tracking system, until current detecting mould Block detects that output current value reaches I1, solar tracking system starts to follow the tracks of the sun and runs；
Normally follow the tracks of in running at solar tracking system, when current detection module detects that output current value is reduced to I2 Time, rotatable support frame driver normally follows the tracks of operation by stop rotatable support frame, and drive rotatable support frame be back to return night/ Wind resistance guard mode；
Angle A is returned when the sun runs to night2Time, solar tracking system starts to return, returns/wind resistance guard mode to night, and electric current is examined Survey module from service.
A kind of change according to current value adjusts the control method of solar tracking system angle, It is characterized in that, normally follow the tracks of in running at solar tracking system, control module periodically compare photovoltaic array or The output current value of current detecting unit, and in good time angle to solar tracking system carries out trickle adjustment, concrete table accordingly It is now: the photovoltaic array of current flow detection module detection or the output current value of current detecting unit are Ia, rotatable support frame Driver drives rotatable support frame continues to rotate forward, photovoltaic array that current detection module detects again or current detecting unit Output current value be Ib；If Ib > Ia, rotatable support frame rotates forward continuing, until output current value is not further added by；If it is defeated Going out current value Ib < Ia, rotatable support frame reversely rotates, until output current value is not further added by.
CN201610592124.2A 2016-07-26 2016-07-26 A kind of change according to current value adjusts device and the control method of solar tracking system angle Pending CN106230365A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106843288A (en) * 2017-03-01 2017-06-13 江苏国电铁塔有限公司 Photovoltaic tracking support regards daily motion control system and method
CN107894781A (en) * 2017-12-24 2018-04-10 苏州佳亿达电器有限公司 High-efficiency solar TRT
CN107966998A (en) * 2018-01-22 2018-04-27 钱稷 A kind of photovoltaic generation tracking system and its control method
CN108153335A (en) * 2017-12-24 2018-06-12 苏州佳亿达电器有限公司 High-efficiency solar plate method of controlling rotation
CN109066794A (en) * 2018-09-10 2018-12-21 浙江电腾云光伏科技有限公司 A kind of photovoltaic plant operational management software control platform
CN112286232A (en) * 2020-08-21 2021-01-29 天合光能股份有限公司 Tracking angle optimization method of flat single-axis tracking system and tracking support thereof
CN113867421A (en) * 2021-11-19 2021-12-31 晟维新能源科技发展(天津)有限公司 Intelligent tracking control system applied to photovoltaic tracking support

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WO2011002122A1 (en) * 2009-06-29 2011-01-06 오쏠라 유한회사 Solar power system and solar energy chasing method thereof
CN102096416A (en) * 2011-01-31 2011-06-15 中国恩菲工程技术有限公司 Control method of solar battery assembly
KR101253338B1 (en) * 2010-02-08 2013-04-15 주식회사 한국체인모터 Backtacking method and system of solar tracker system

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JPH02130608A (en) * 1988-11-11 1990-05-18 Nkk Corp Tracking control method for servo mechanism
WO2007087755A1 (en) * 2006-02-03 2007-08-09 Binxuan Yi Automatically tracing and control method and system of solar cell
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106843288A (en) * 2017-03-01 2017-06-13 江苏国电铁塔有限公司 Photovoltaic tracking support regards daily motion control system and method
CN107894781A (en) * 2017-12-24 2018-04-10 苏州佳亿达电器有限公司 High-efficiency solar TRT
CN108153335A (en) * 2017-12-24 2018-06-12 苏州佳亿达电器有限公司 High-efficiency solar plate method of controlling rotation
CN108153335B (en) * 2017-12-24 2021-02-12 苏州佳亿达电器有限公司 High-efficiency solar panel rotation control method
CN107966998A (en) * 2018-01-22 2018-04-27 钱稷 A kind of photovoltaic generation tracking system and its control method
CN109066794A (en) * 2018-09-10 2018-12-21 浙江电腾云光伏科技有限公司 A kind of photovoltaic plant operational management software control platform
CN109066794B (en) * 2018-09-10 2021-05-28 浙江电腾云光伏科技有限公司 Photovoltaic power plant operation management software control platform
CN112286232A (en) * 2020-08-21 2021-01-29 天合光能股份有限公司 Tracking angle optimization method of flat single-axis tracking system and tracking support thereof
CN113867421A (en) * 2021-11-19 2021-12-31 晟维新能源科技发展(天津)有限公司 Intelligent tracking control system applied to photovoltaic tracking support

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