WO2012022257A1 - 一种凸轮转盘以及安装有该凸轮转盘的太阳跟踪装置及该装置的控制方法 - Google Patents
一种凸轮转盘以及安装有该凸轮转盘的太阳跟踪装置及该装置的控制方法 Download PDFInfo
- Publication number
- WO2012022257A1 WO2012022257A1 PCT/CN2011/078501 CN2011078501W WO2012022257A1 WO 2012022257 A1 WO2012022257 A1 WO 2012022257A1 CN 2011078501 W CN2011078501 W CN 2011078501W WO 2012022257 A1 WO2012022257 A1 WO 2012022257A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cam
- power output
- control
- friction
- output shaft
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000033001 locomotion Effects 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000005855 radiation Effects 0.000 description 6
- 241000282414 Homo sapiens Species 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000112598 Pseudoblennius percoides Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
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- 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
- F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
- F24S30/452—Vertical primary axis
-
- 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
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
-
- 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
- F24S2030/10—Special components
- F24S2030/11—Driving means
-
- 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
- F24S2030/10—Special components
- F24S2030/13—Transmissions
-
- 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
Definitions
- the invention belongs to the technical field of focused solar photovoltaic power generation, and particularly relates to a cam turntable and a sun tracking device equipped with the same, and a control method thereof. Background technique
- Fixed PV module power generation is the main form of focusing solar photovoltaic power generation. It fixes the PV module on the load-bearing support system to collect the illumination radiation during the rising to the sunset and convert the collected light into electrical energy.
- the amount of electrical energy is proportional to the effective radiation area of the photovoltaic module, and the effective radiation area is the projected area of the received sunlight on the vertical plane of the sunlight. Due to the earth's rotation, the sun rises and falls every day.
- the photovoltaic modules that receive sunlight in a day are only facing the sun for a short time. When the photovoltaic modules are diagonally facing the sun, the effective radiation area is proportional to the vertical surface of the photovoltaic modules and sunlight. The cosine of the angle is so low that the utilization of sunlight is quite low, and a lot of solar radiation energy is wasted.
- the bearing turntable is generally used as an azimuth driving device on the market, that is, the bearing turntable is used to set the photovoltaic component on the supporting mechanism, and the control of the bearing turntable is used to drive the photovoltaic component to rotate, so as to realize the tracking of the solar component by the photovoltaic component.
- a bearing turntable cannot withstand excessive wind power, that is, when the wind is relatively large, the external impact load of the bearing turntable (the external impact load is mostly a harmful load) is large, and the impact load is extremely easy.
- the present invention provides a cam turntable which can not only withstand a large impact load but also automatically cancel the gap of the azimuth drive device, and a sun tracking device equipped with the cam turntable and a control method therefor.
- a cam turntable comprising: a housing, a driving device disposed on the housing, a power output shaft driven by the driving device and having a cam, and being disposed on the power output shaft A control device that transfers the external impact load.
- the driving device of the cam according to the present invention includes a driving motor disposed on the housing, a driving worm connected to the power output end of the driving motor, and fixedly disposed on the power output shaft and
- the driving turbine that drives the worm meshing has a power transmission path of a motor-driven worm-driven turbine-power output shaft.
- the cam turntable of the present invention comprising a control electric device disposed on the casing
- a control worm connected to the power output end of the control motor, a control turbine fitted to the power take-off shaft through the sliding sleeve and engaged with the control worm, and a friction device in contact with the cam surface, wherein a control turbine is disposed between the cam and the driving turbine, and the control turbine and the driving turbine are spaced apart from each other and disposed in parallel on the power output shaft by a spacer sleeved on the power output shaft, to The drive turbine and the control turbine are spaced apart to prevent relative movement of the two to better control the transfer of external impact loads.
- the friction device includes a friction body that is in contact with the cam surface and fixed to the housing, and a friction plate disposed between the cam and the friction body, the friction plate and The friction body and the cam are all attached to each other, so that the friction plate and the friction body, the friction plate and the cam are in surface contact, thereby better converting the external impact load into friction force and consuming it, thereby realizing harmful to these externalities.
- the impact load is effectively transferred or eliminated.
- the cam has a heart shape, and the friction plate is in contact with the concave curved surface of the heart cam, and the shape of the curved surface of the heart shaped cam can be specifically set according to actual needs.
- one end of the power output shaft is located in the casing, and the other end protrudes from the casing; and in order to adjust a gap generated when components in the cam carousel are assembled,
- An end cover is disposed at one end of the housing corresponding to the power output shaft not extending out of the housing, the end cover is fixed to the housing by bolts to adjust the gap; the other end is on the power output shaft
- a shaft seal is disposed between the friction bodies, and the shaft seal seals the tapered roller bearing between the power output shaft and the friction body.
- the cam turntable according to the present invention can pre-tighten and seal the components in the cam turntable during assembly, between the friction body and the casing, and between the end cover and the casing.
- the friction body is fixed to the casing by screws, so as to facilitate installation and disassembly of the friction body, which is convenient for maintenance and replacement.
- a sun tracking device includes a support mechanism for mounting a photovoltaic module and an azimuth driving device fixed to the support mechanism and azimuthally adjusting the support mechanism, the azimuth driving device being the cam turntable.
- the supporting mechanism comprises a column, a lifting arm and a bracket system, wherein a lower end of the lifting arm is connected to the column through the cam turntable, and an upper end is connected to the bracket system, A photovoltaic module is mounted on the support system.
- the power output shaft of the cam turntable protrudes from the housing and is connected to the lower end of the lift arm.
- the power output shaft of the cam turntable protrudes from one end of the casing through the output flange and the lift arm The lower end is rigidly connected.
- the sun tracking device of the present invention is further provided with a height angle driving device fixed between the lifting arm and the bracket system and adjusting the height of the bracket system, the height angle driving device and the above
- the azimuth driving device ie, the cam turntable
- the solar component supporting mechanism of the solar tracking device is combined with the solar component supporting mechanism of the solar tracking device to perform full-fit tracking of the solar motion trajectory, thereby maximizing the use of sunlight and improving the utilization of illumination.
- a method for controlling a sun tracking device comprising: the following steps:
- control motor drives the friction plate to rotate by the control worm and the control turbine
- the control turbine only constrains the circular motion of the friction plate, and does not constrain the radial motion.
- control turbine acts on the cam, and the cam presses the friction plate toward the friction body, thereby the components in the cam turntable
- the gap due to wear of the components is eliminated during assembly or after a period of use.
- the solar tracking device provided by the present invention uses a cam turntable as an azimuth driving device to perform azimuth adjustment on a supporting mechanism for mounting a photovoltaic module, and the cam rotating wheel passes the control device to the entire sun.
- the harmful external impact load carried by the tracking device is converted into frictional force and transferred and reduced, thereby helping to protect the subsequent driving device from being damaged due to excessive impact load, in particular, the accuracy of the protection control turbine is not affected, and the length is further extended.
- the service life of the entire sun tracking device has high safety performance and large carrying capacity.
- the cam dial as the azimuth driving device, it also has an automatic canceling gap function, that is, since the starting time and speed of the control turbine are hysteresis with respect to the driving turbine, Controlling the turbine by acting on the cam, the cam pressing the friction lining in the direction of the friction body, so that the components in the cam turret are assembled or used for a period of time due to the components
- the cam disc is equipped with a heart-shaped cam, and the concave curved surface of the heart-shaped cam is attached to the friction plate, and at the same time, the cam and the friction plate, the friction plate and the friction body are in surface contact manner, so that they can be
- the frictional contact surface is the largest, so that the harmful external impact load can be converted into friction force to be effectively transferred or reduced, and the concave curved surface of the heart cam can be transferred according to the impact load required or consumed.
- the cam track is used as the azimuth driving device of the sun tracking device to track the solar trajectory
- an elevation angle driving for adjusting the height of the bracket system is also provided between the lifting arm and the bracket system.
- the device, the height angle driving device and the azimuth driving device ie, the cam wheel
- FIG. 1 is a structural diagram of a sun tracking device according to an embodiment of the present invention.
- Figure 2 is a front elevational view of the cam dial of Figure 1.
- Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
- Figure 4 is a perspective view showing the internal structure of the cam disc shown in Figure 2.
- Fig. 5 is a structural schematic view showing a state in which the cam of the cam turntable is attached to the friction device in the embodiment.
- the mark 1 is a photovoltaic module; the mark 2 is a cam turntable; the mark 2-1 is a casing; the mark 2-2 is a cam; the mark 2-3 is a power output shaft; the mark 2-4 is a drive motor; - 5 for drive
- a solar tracking device includes a support mechanism for mounting the photovoltaic module 1 and an azimuth driving device fixed to the support mechanism and azimuthally adjusting the support mechanism, the orientation
- the angular drive is a cam turntable 2.
- the cam turntable 2 includes a housing 2-1, a driving device disposed on the housing 2-1, a power output shaft 2-3 driven by the driving device and having a cam 2-2, and a setting A control device for transferring the external impact load on the power output shaft 2-3.
- the driving device includes a driving motor 2-4 disposed on the casing 2-1 (the driving motor 2-4 adopts a constant torque motor in the embodiment), and is connected to the power output end of the driving motor 2-4
- the drive worm 2-5 and the drive turbine 2-6 fixedly disposed on the power take-off shaft 2-3 and meshed with the drive worm 2-5.
- the control device comprises a control motor 2-7 disposed on the housing 2-1, a control worm 2-8 connected to the power output end of the control motor 2-7, and a mounting device 2-9 through the sliding sleeve 2-9.
- a control turbine 2-10 on the power output shaft 2-3 and engaged with the control worm 2-8 and a replacement page in surface contact with the cam 2-2 (Article 26) a friction device, wherein the control turbine 2-10 is disposed between the cam 2-2 and the drive turbine 2-6, and a package is disposed between the control turbine 2-10 and the drive turbine 2-6
- the spacers 2-11 on the power output shaft 2-3 are spaced apart and disposed in parallel on the power take-off shaft 2-3.
- the friction device includes a friction body 2- 12 that is in surface contact with the cam 2-2 and is fixed to the housing 2-1, and friction between the cam 2-2 and the friction body 2-12.
- a sheet 2-13, the friction plate 2-13 is attached to the friction body 2-12 and the cam 2-2; the friction body 2-12 is fixed to the housing 2-1 by a screw 10;
- the cam 2-2 is in the shape of a heart, and the friction plate 2-13 is in contact with the concave curved surface 2-14 of the heart cam 2-2; between the power output shaft 2-3 and the friction body 2-12
- a tapered roller bearing 11 is provided.
- the supporting mechanism comprises a column 3, a lifting arm 4 and a bracket system 5, wherein the lower end of the lifting arm 4 is connected to the column 3 through the cam turntable 2, and the upper end is connected to the bracket system 5, the bracket system 5 Mounting the photovoltaic module 1; one end of the power output shaft 2-3 is located in the casing 2-1, and the other end protrudes from the casing 2-1 and is connected to the lower end of the lift arm 4;
- the housing 2-1 is provided with an end cover 6 corresponding to one end of the power output shaft 2-3 that does not protrude from the housing 2-1, and the end cover 6 is fixed to the housing 2-1 by bolts 12.
- a shaft seal ⁇ 7 is disposed between the power output shaft 2-3 and the friction body 2-12, and the shaft seal ring seals the tapered roller bearing 11 to the power output shaft 2-3 Between the friction body 2-12; one end of the power output shaft 2-3 extending from the casing 2-1 is rigidly connected to the lower end of the lift arm 4 through the output flange 8; A 0-type sealing jaw 13 is provided between the end cover 6 and the housing 2-1 between the 12 and the housing 2-1.
- the sun tracking device is further provided with a height angle driving device 9 fixed between the lifting arm 4 and the bracket system 5 and for adjusting the height of the bracket system 5.
- the control method of the sun tracking device and the working principle thereof firstly driving the driving motor 2-4, then starting the control motor 2-7, and setting the rotation speed of the control motor 2-7 to be lower than the driving Motor
- the rotation speed of 2-4 is about 10%.
- the control motor 2-7 drives the friction plate 2-13 to rotate by the control worm 2-8 and the control turbine rod 2-10 (the control turbine 2-10 only) Constraining the circular motion of the friction plates 2-13, not constraining the radial motion), and operating in the same direction as the driving motor 2 to further release the torque generated by the driving motor 2-4, stopping after a short delay
- the starting time of the motor is left with a certain delay and speed difference, so when the external impact load is large, the impact load acts on the friction plate 2-13 through the cam 2-2, and is converted into the friction plate.
- the sun tracker is further provided with a height fixed between the lifting arm 4 and the bracket system 5 and height-adjusting the bracket system 5
- the angular driving device 9 (this embodiment adopts an electric push rod as the height angle driving device 9), in the process of azimuth driving adjustment of the bracket system 5 by the cam turntable 2, the height angle driving device 9 simultaneously
- the bracket system 5 performs height angle adjustment so that the photovoltaic module 1 disposed on the bracket system 5 performs full-fit tracking of the trajectory of the sun motion.
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011291177A AU2011291177B2 (en) | 2010-08-16 | 2011-08-16 | Cam turntable, sun-tracking device equipped with same and control method for the device |
US13/582,801 US9337371B2 (en) | 2010-08-16 | 2011-08-16 | Cam turntable, sun-tracking device equipped with same and control method for the device |
EP11817784.9A EP2607741A4 (en) | 2010-08-16 | 2011-08-16 | Cam turntable, sun-tracking device equipped with same and control method for the device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010102543019A CN101895238B (zh) | 2010-08-16 | 2010-08-16 | 一种太阳跟踪装置 |
CN201010254301.9 | 2010-08-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012022257A1 true WO2012022257A1 (zh) | 2012-02-23 |
Family
ID=43104338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2011/078501 WO2012022257A1 (zh) | 2010-08-16 | 2011-08-16 | 一种凸轮转盘以及安装有该凸轮转盘的太阳跟踪装置及该装置的控制方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9337371B2 (zh) |
EP (1) | EP2607741A4 (zh) |
CN (1) | CN101895238B (zh) |
AU (1) | AU2011291177B2 (zh) |
WO (1) | WO2012022257A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2611571C1 (ru) * | 2015-12-09 | 2017-02-28 | Федеральное государственное бюджетное учреждение науки Физико-технический институт им. А.Ф. Иоффе Российской академии наук | Система управления платформой концентраторных солнечных модулей |
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CN101895238B (zh) * | 2010-08-16 | 2012-06-27 | 成都钟顺科技发展有限公司 | 一种太阳跟踪装置 |
CN102541073A (zh) * | 2010-12-09 | 2012-07-04 | 西安大昱光电科技有限公司 | 太阳光双轴跟踪装置 |
CN102306028B (zh) * | 2011-05-06 | 2013-04-17 | 成都钟顺科技发展有限公司 | 一种用于太阳跟踪的自适应回转装置及其工作方法 |
CN104011994A (zh) * | 2012-10-25 | 2014-08-27 | 松下电器产业株式会社 | 太阳能发电面板单元以及太阳能发电装置 |
US9182030B2 (en) * | 2013-09-26 | 2015-11-10 | Brent Morgan | Slew drive gearbox with spherical adjusting mount |
CN104242807B (zh) * | 2014-09-15 | 2016-09-21 | 中国运载火箭技术研究院 | 一种太阳电池阵双轴对日定向机构 |
EP3179177A1 (en) * | 2015-12-07 | 2017-06-14 | Marco Antonio Carrascosa Perez | Heliostat with an improved structure |
CN106288442B (zh) * | 2016-08-31 | 2018-04-03 | 北京天何太阳能研究所 | 碟式聚能支架及碟式聚能镜 |
CN106253825B (zh) * | 2016-09-14 | 2018-07-10 | 四川中惯科技股份有限公司 | 一种用于光伏发电跟踪装置的支撑架 |
US11056996B2 (en) | 2018-03-06 | 2021-07-06 | Utah State University | Mechanical solar tracker for energy and shade |
CN112730247A (zh) * | 2020-12-28 | 2021-04-30 | 中国科学院合肥物质科学研究院 | 一种光谱仪专用定标转台 |
CN117691932B (zh) * | 2024-02-01 | 2024-04-26 | 山西晋南钢铁集团有限公司 | 一种可跟随的光伏板安装支架 |
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Also Published As
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US20130133719A1 (en) | 2013-05-30 |
AU2011291177A1 (en) | 2012-11-08 |
US9337371B2 (en) | 2016-05-10 |
EP2607741A4 (en) | 2017-11-15 |
CN101895238B (zh) | 2012-06-27 |
CN101895238A (zh) | 2010-11-24 |
AU2011291177B2 (en) | 2015-07-02 |
EP2607741A1 (en) | 2013-06-26 |
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