WO2008003023A2 - Solar array tracker controller - Google Patents
Solar array tracker controller Download PDFInfo
- Publication number
- WO2008003023A2 WO2008003023A2 PCT/US2007/072325 US2007072325W WO2008003023A2 WO 2008003023 A2 WO2008003023 A2 WO 2008003023A2 US 2007072325 W US2007072325 W US 2007072325W WO 2008003023 A2 WO2008003023 A2 WO 2008003023A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- processor
- solar
- array
- sun
- inclinometer
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
Definitions
- the present invention relates generally to solar array tracker controllers, more particularly to a solar array tracker controller which utilizes inputs of the local latitude, longitude, universal time and software incorporating a mathematical algorithm that calculates the optimal positioning of the solar array and initiate movements to achieve the optimal positioning.
- U.S. Patent No. 4,175,391 to Baer describes apparatus for causing a solar energy collector to follow the sun by using solar radiant energy to differentially heat fluid-containing reservoirs to cause differential vaporization and shifting of fluid to rotate the apparatus.
- U.S. Patent No. 4,215,521 to Weslow, et al discloses an open loop servo controller for motors driving solar panels about its azimuth and altitude axis to track the sun.
- the controller has a central processing unit and a user interface for inputting data relating to the present day, hour, minute, and the latitude and longitude of the installed device.
- Program data and tables of data corresponding to the declinations of the sun on any day, and other mathematical functions are stored in memory.
- the processor utilizes the data to calculate the azimuth and altitude of the sun for every minute of the day and issues control signals that cause motors to move the device to the calculated angles.
- 4,469,899 to Moore describes an apparatus for tracking the motion of the sun utilizing a plurality of solar cells that generate electric signals when exposed to solar radiation.
- the solar cells are mounted in trough-like shadow boxes which permit exposure of the solar cells to solar radiation only at predetermined angles.
- the shadow boxes are mounted for concomitant rotation around a vertical and horizontal axis and are driven by a pair of motors. The motors are controlled by the output of the solar cells and reposition the shadow boxes to shade the solar cells responsive to the motion of the sun.
- the present invention is a solar array tracker controller that utilizes inputs relating to local latitude, longitude, and universal time, and then based on the inputs employs a mathematical algorithm to calculate the optimal positioning of the solar array and to initiate movement of solar collectors to achieve the optimal positioning. While suitable for use with even a single photovoltaic or solar collector panel, the tracker controller of the present invention is particularly well suited for controlling the positioning of large arrays of solar panels deployed in, and mounted on, support structure such as that described in co-pending International Patent Application Serial Number PCT/US06/38185, filed 28/2006 (28 September 2006), and entitled Solar Panel Array Sun Tracking System, which application is incorporated in its entirety by reference herein.
- Such arrays and array tracking apparatus include panel support structure operatively connected to drive motors that mechanically pivot and rotate entire rows and columns of panels in an array simultaneously and in complete coordination in either or both east/west and/or north/south axes, as called for by the installation.
- the tracker controller of the present invention is designed to provide motor control inputs that optimally position the panels in an array.
- the solar array tracker controller of the present invention utilizes a processor programmed with the above-described algorithm for accurately predicting the location of the sun based on the date, time of day in hours and minutes, local latitude and local longitude.
- the program takes into account the elliptical orbit of the earth around the sun, which changes slightly over time.
- the controller also includes an interface for a Global Positioning Sensor (GPS) that provides highly accurate information on latitude, longitude and global time to the processor.
- GPS Global Positioning Sensor
- the processor has a digital interface for a highly precise inclinometer.
- the inclinometer is mounted along the rotational axes of the solar energy utilizing device such as a solar panel array.
- the inclinometer relays the angle of the solar panels on the tracker through the digital interface to the processor.
- the processor then utilizes the information from the inclinometer to send optimized positioning information to one or more drive and adjustment motors, which adjust the position of the solar array to optimize the angle of incidence to solar rays. Back and forth east/west movement of the panels is accomplished by moving the motors forward and backward.
- the processor includes networking capability and Ethernet or Internet capability, and further includes a remote interface that allows remote acquisition of data and status of the apparatus on a local area network, a wide area network, or global network.
- the tracker includes a stand-alone wind sensor and an AC converter that digitizes wind measurements for input of the sensor signals to the processor. This weather information is utilized in severe conditions only, to move the tracker into a neutral aerodynamic stow position (generally horizontal) at times of high winds.
- FIG. 1 is a block diagrammatic representation of the solar array tracker controller of the present invention.
- FIG. 1 wherein like reference numerals refer to like components in the various views, there is illustrated therein a new and improved solar array tracker controller , generally denominated 100 herein.
- FIG. 1 illustrates a preferred embodiment of the solar array tracker controller 100, and shows that the system comprises a micro-processor/controller 110 having an integral operator interface 120 with an LCD display and a keypad for entry of local data.
- An exemplary system is the Z-World OP6800, which is a relatively low-cost, C-programmable operator interface and single-board computer with industrialized I/O, a graphic LCD, and a keypad. It includes an integrated control, display, and networking capabilities via Internet/Ethernet or serial communications.
- This processor includes memory for storing a program including a mathematical algorithm that accurately determines the location of the sun based on local data, such as the date, time of day in hours and minutes, local latitude and local longitude.
- the algorithm takes into account the elliptical orbit of the earth around the sun which changes slightly over time.
- the processor 110 also includes a GPS interface 140 for a Global Positioning Sensor (GPS) 145 which provides highly accurate information on latitude, longitude and global time to the processor. Additionally, the processor has a digital interface 150 for a tilt sensor or inclinometer 160, such as the Model SCAlOOT inclinometer made by VTI Technologies of Vantaa, Finland, or the Model 0717-4304-99 TrueTilt, dual axis, wide angle, electrolytic tilt sensor made by The Frederick's Company of Huntingdon Valley, Pennsylvania.
- GPS Global Positioning Sensor
- the inclinometer 160 is mounted along one or more axes of a solar energy utilizing device 170, such as a solar panel in a solar panel array.
- the inclinometer 160 relays to the processor data concerning the angle of altitude and azimuth of the solar energy utilizing device 170 through the digital interface 160 on the processor.
- the processor then utilizes the information from the inclinometer to send optimized positioning information to one or more drive motors 205, which are operatively linked or connected to pivoting and rotating apparatus which adjust the position of the solar energy utilizing device (panels) 170 to optimize the angle of incidence to solar rays.
- the processor also controls the east/west orientation of the solar energy utilizing device 170 by initiating relays 190 to the drive motors 205 to actuate forward and reverse movement of drive apparatus 210, such as a jack screw or a reciprocating drift shaft.
- drive apparatus 210 such as a jack screw or a reciprocating drift shaft.
- the processor also has a remote interface 220 that allows remote acquisition and transmission of data and status of the via a global computer network, such as the Internet 230, or in a wide area network or local area network.
- the tracker controller includes a stand alone wind sensor 240 which digitizes the wind sensor signals for input into the processor. In times of potentially damaging high winds, the signal alerts the processor to send control inputs to the drive motors to position the array panels in a substantially neutral aerodynamic stow position (i.e., generally horizontal) This weather information is utilized to move the tracker into a horizontal stow position in times of high wind conditions.
- the solar panel array tracker controller of the present invention in its most essential aspect, comprises a micro-processor coupled to the drive motors of a solar panel array.
- the processor is programmed to calculate the precise location of the sun relative to the array, and then to control the motors based on local data, either input by an operator or by a GPS sensor connected to the processor to place the array panels in an optimal angle of incidence in relation to the sun's rays.
- One or more tilt sensors or inclinometers mounted on a panel or panels provide information to the processor concerning the current configuration of the array.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Photovoltaic Devices (AREA)
- Programmable Controllers (AREA)
Abstract
A solar array tracker controller including an operator programmable micro¬ processor electronically connected to the drive motors in a solar panel array or other solar device array. The processor is user programmable and includes memory for storing a software program which includes an algorithm that determines the precise location of the sun relative to the array based on the local data input into the processor. A GPS sensor and interface may be provided to obviate the need for local data input.
Description
SOLAR ARRAY TRACKER CONTROLLER
DanielS. Thompson of San Rafael, California, US
Eric Carlson of San Francisco, California, US
David Schevick of San Rafael, California, US
BACKGROUND OF THE INVENTION
Technical Field
[0001] The present invention relates generally to solar array tracker controllers, more particularly to a solar array tracker controller which utilizes inputs of the local latitude, longitude, universal time and software incorporating a mathematical algorithm that calculates the optimal positioning of the solar array and initiate movements to achieve the optimal positioning.
Background Art
[0002] Automated solar tracker controllers are widely used to optimize positioning of solar panels. Solar energy collectors perform most efficiently when the incident rays of the sun are perpendicular to the absorbing surface. And because the position of the sun is constantly changing in relationship to the earth, it is necessary to continually reposition the absorbing surface of solar panels to maintain the most advantageous, perpendicular angle of incidence to the sun's rays. Various solar collector drive mechanisms and tracker controls have been
devised for maintaining this optimal angle. The following are exemplary, though by no means exhaustive.
[0003] U.S. Patent No. 4,175,391 to Baer, describes apparatus for causing a solar energy collector to follow the sun by using solar radiant energy to differentially heat fluid-containing reservoirs to cause differential vaporization and shifting of fluid to rotate the apparatus.
Automatic morning orientation is included by providing the easterly reservoir with a faster rate of cooling than the westerly one, thereby causing shift of fluid from westerly to easterly after sunset resulting inclination toward the east by sunrise. [0004] U.S. Patent No. 4,104,521 to Winders, teaches a high angular accuracy sensor and tracking device utilizing a symmetrical sensor shade and sensor arrangement. The apparatus utilizes a circuit control for the electric motor drive of the tracker.
[0005] U.S. Patent No. 4,215,521 to Weslow, et al, discloses an open loop servo controller for motors driving solar panels about its azimuth and altitude axis to track the sun. The controller has a central processing unit and a user interface for inputting data relating to the present day, hour, minute, and the latitude and longitude of the installed device. Program data and tables of data corresponding to the declinations of the sun on any day, and other mathematical functions are stored in memory. The processor utilizes the data to calculate the azimuth and altitude of the sun for every minute of the day and issues control signals that cause motors to move the device to the calculated angles. [0006] U.S. Patent No. 4,469,899 to Moore, describes an apparatus for tracking the motion of the sun utilizing a plurality of solar cells that generate electric signals when exposed to solar radiation. The solar cells are mounted in trough-like shadow boxes which permit exposure of the solar cells to solar radiation only at predetermined angles. The shadow boxes are mounted for concomitant rotation around a vertical and horizontal axis and are driven by a pair of motors. The motors are controlled by the output of the solar cells and reposition the shadow boxes to shade the solar cells responsive to the motion of the sun. [0007] While the above-described patents are each directed to apparatus for solar tracking and describe devices that initiate movement of solar energy utilizing devices, none describe
a system incorporating a GPS interface that instantly and constantly updates the location and time of the solar panel system and thereby situates the system relative to the sun according to the date and time. Additionally, none describe a remote interface to the Internet for remote access to the controlling device. The present invention, as described and claimed herein, provides such features, as well as several other advantages and improvements over the prior art.
[0008] The foregoing patents reflect the current state of the art of which the present inventors are aware. Reference to, and discussion of, these patents is intended to aid in discharging Applicants' acknowledged duty of candor in disclosing information that may be relevant to the examination of claims to the present invention. However, it is respectfully submitted that none of the above-indicated patents disclose, teach, suggest, show, or otherwise render obvious, either singly or when considered in combination, the invention described and claimed herein.
Disclosure of Invention
[0009] The present invention is a solar array tracker controller that utilizes inputs relating to local latitude, longitude, and universal time, and then based on the inputs employs a mathematical algorithm to calculate the optimal positioning of the solar array and to initiate movement of solar collectors to achieve the optimal positioning. While suitable for use with even a single photovoltaic or solar collector panel, the tracker controller of the present invention is particularly well suited for controlling the positioning of large arrays of solar panels deployed in, and mounted on, support structure such as that described in co-pending International Patent Application Serial Number PCT/US06/38185, filed 28/09/2006 (28 September 2006), and entitled Solar Panel Array Sun Tracking System, which application is incorporated in its entirety by reference herein. Such arrays and array tracking apparatus include panel support structure operatively connected to drive motors that mechanically pivot and rotate entire rows and columns of panels in an array simultaneously and in complete coordination in either or both east/west and/or north/south axes, as called for by the
installation. The tracker controller of the present invention is designed to provide motor control inputs that optimally position the panels in an array.
[0010] The solar array tracker controller of the present invention utilizes a processor programmed with the above-described algorithm for accurately predicting the location of the sun based on the date, time of day in hours and minutes, local latitude and local longitude.
The program takes into account the elliptical orbit of the earth around the sun, which changes slightly over time.
[0011] The controller also includes an interface for a Global Positioning Sensor (GPS) that provides highly accurate information on latitude, longitude and global time to the processor. Additionally, the processor has a digital interface for a highly precise inclinometer. The inclinometer is mounted along the rotational axes of the solar energy utilizing device such as a solar panel array. The inclinometer relays the angle of the solar panels on the tracker through the digital interface to the processor. The processor then utilizes the information from the inclinometer to send optimized positioning information to one or more drive and adjustment motors, which adjust the position of the solar array to optimize the angle of incidence to solar rays. Back and forth east/west movement of the panels is accomplished by moving the motors forward and backward. The combination of east/west travel, azimuth and angle of altitude calculated and positioned by the processor, create an optimized angle of incidence for the solar energy utilizing device to solar rays. [0012] As noted, the processor includes networking capability and Ethernet or Internet capability, and further includes a remote interface that allows remote acquisition of data and status of the apparatus on a local area network, a wide area network, or global network. [0013] The tracker includes a stand-alone wind sensor and an AC converter that digitizes wind measurements for input of the sensor signals to the processor. This weather information is utilized in severe conditions only, to move the tracker into a neutral aerodynamic stow position (generally horizontal) at times of high winds.
[0014] Other novel features which are characteristic of the invention, as to organization and method of operation, together with further objects and advantages thereof will be better
understood from the following description considered in connection with the accompanying drawing, in which preferred embodiments of the invention are illustrated by way of example. It is to be expressly understood, however, that the drawing is for illustration and description only and is not intended as a definition of the limits of the invention. The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming part of this disclosure. The invention resides not in any one of these features taken alone, but rather in the particular combination of all of its structures for the functions specified.
Brief Description of the Drawings
[0015] The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
[0016] FIG. 1 is a block diagrammatic representation of the solar array tracker controller of the present invention.
[0017] Drawing Reference Numerals
[0018] 100 solar array tracker controller
[0019] 110 processor / micro-controller
[0020] 120 operator interface [0021] 140 GPS interface
[0022] 145 Global Positioning Sensor (GPS)
[0023] 150 digital interface
[0024] 160 inclinometer
[0025] 170 solar energy utilizing device [0026] 190 initiating relays
[0027] 205 motor
[0028] 210 jack screw or drive shaft
[0029] 220 remote interface
[0030] 230 Internet [0031] 240 wind sensor
Best Mode for Carrying Out the Invention [0032] Referring to FIG. 1, wherein like reference numerals refer to like components in the various views, there is illustrated therein a new and improved solar array tracker controller , generally denominated 100 herein.
[0033] FIG. 1 illustrates a preferred embodiment of the solar array tracker controller 100, and shows that the system comprises a micro-processor/controller 110 having an integral operator interface 120 with an LCD display and a keypad for entry of local data. An exemplary system is the Z-World OP6800, which is a relatively low-cost, C-programmable operator interface and single-board computer with industrialized I/O, a graphic LCD, and a keypad. It includes an integrated control, display, and networking capabilities via Internet/Ethernet or serial communications. This processor includes memory for storing a program including a mathematical algorithm that accurately determines the location of the sun based on local data, such as the date, time of day in hours and minutes, local latitude and local longitude. The algorithm takes into account the elliptical orbit of the earth around the sun which changes slightly over time. [0034] The processor 110 also includes a GPS interface 140 for a Global Positioning Sensor (GPS) 145 which provides highly accurate information on latitude, longitude and global time to the processor. Additionally, the processor has a digital interface 150 for a tilt sensor or inclinometer 160, such as the Model SCAlOOT inclinometer made by VTI Technologies of Vantaa, Finland, or the Model 0717-4304-99 TrueTilt, dual axis, wide angle, electrolytic tilt sensor made by The Frederick's Company of Huntingdon Valley, Pennsylvania. The inclinometer 160 is mounted along one or more axes of a solar energy utilizing device 170, such as a solar panel in a solar panel array. The inclinometer 160 relays to the processor data concerning the angle of altitude and azimuth of the solar energy utilizing device 170 through the digital interface 160 on the processor. The processor then
utilizes the information from the inclinometer to send optimized positioning information to one or more drive motors 205, which are operatively linked or connected to pivoting and rotating apparatus which adjust the position of the solar energy utilizing device (panels) 170 to optimize the angle of incidence to solar rays. [0035] The processor also controls the east/west orientation of the solar energy utilizing device 170 by initiating relays 190 to the drive motors 205 to actuate forward and reverse movement of drive apparatus 210, such as a jack screw or a reciprocating drift shaft. The combination of east/west travel, azimuth, and angle of altitude calculated and positioned by the processor creates an optimized angle of incidence for the solar energy utilizing device to solar rays.
[0036] The processor also has a remote interface 220 that allows remote acquisition and transmission of data and status of the via a global computer network, such as the Internet 230, or in a wide area network or local area network. [0037] Further, the tracker controller includes a stand alone wind sensor 240 which digitizes the wind sensor signals for input into the processor. In times of potentially damaging high winds, the signal alerts the processor to send control inputs to the drive motors to position the array panels in a substantially neutral aerodynamic stow position (i.e., generally horizontal) This weather information is utilized to move the tracker into a horizontal stow position in times of high wind conditions. [0038] Accordingly, it will be appreciated by those with skill in the art that the solar panel array tracker controller of the present invention, in its most essential aspect, comprises a micro-processor coupled to the drive motors of a solar panel array. The processor is programmed to calculate the precise location of the sun relative to the array, and then to control the motors based on local data, either input by an operator or by a GPS sensor connected to the processor to place the array panels in an optimal angle of incidence in relation to the sun's rays. One or more tilt sensors or inclinometers mounted on a panel or panels provide information to the processor concerning the current configuration of the array. [0039] The foregoing disclosure is sufficient to enable those with skill in the relevant art to
practice the invention without undue experimentation. The disclosure further provides the best mode of practicing the invention now contemplated by the inventor. [0040] While the particular solar tracker array controller apparatus and method herein shown and disclosed in detail is fully capable of attaining the objects and providing the advantages stated herein, it is to be understood that it is merely illustrative of the presently preferred embodiment of the invention and that no limitations are intended concerning the detail of construction or design shown other than as defined in the appended claims. Accordingly, the proper scope of the present invention should be determined only by the broadest interpretation of the appended claims so as to encompass obvious modifications as well as all relationships equivalent to those illustrated in the drawings and described in the specification.
Claims
1. A solar array tracker controller, comprising an operator programmable microprocessor/controller electronically connected to one or more drive motors in a solar device array, said processor having magnetic storage means for storing a software program which includes an algorithm that determines the precise location of the sun relative to the array based on the local data input into the processor, an operator interface, a visual display, and input means for entering local data regarding the location of the solar array to be controlled and for programming said processor with said software.
2. The apparatus of claim 1, wherein said software includes an algorithm that takes into account the elliptical orbit of the earth around the sun in determining the location of the sun.
3. The apparatus of claim 1, further including a GPS interface for a Global
Positioning Sensor that provides information to said processor concerning the latitude, longitude and global time.
4. The apparatus of claim 1, further including at least one inclinometer in electronic communication with said processor and mounted on one or more of the axes of a solar energy utilizing device and wherein said processor includes a digital interface for receiving data from said inlinometer.
5. The apparatus of claim 4, wherein said inclinometer provides data regarding the angle of altitude and azimuth of at least one device in the solar device array.
6. The apparatus of claim 1, wherein said processor further includes a remote interface that allows remote acquisition and transmission of data and status of array and of the solar array tracker controller.
7. The apparatus of claim 1, further including a wind sensor having electronics for digitizing a wind sensor signal for input into said processor.
8. A method of controlling drive motors operatively connected to solar panels in a solar panel array so as to ensure that the panels have an optimal angle of incidence to solar rays, said method comprising the steps of: electrically connecting an operator programmable micro-processor to one or more of the drive motors in the solar device array, wherein the processor includes input means and magnetic storage means for entering and storing a program and local data; programming the processor with a program which includes an algorithm that determines the precise location of the sun relative to the array based on the local data and that sends control signals to the drive motors to move the solar panels into an optimal position relative to the sun.
9. The method of claim 8, further including the step of providing the processor with a GPS interface and connecting the processor to a Global Positioning Sensor that provides information to the processor concerning the latitude, longitude and global time.
10. The method of claim 8, further including the step of mounting at least one inclinometer to at least one of the solar panels in the solar panel array, and connecting the inclinometer to the processor such that the inclinometer can provide panel tilt data to the processor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/304,967 US20090320827A1 (en) | 2006-06-28 | 2007-06-28 | Solar array tracker controller |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80607206P | 2006-06-28 | 2006-06-28 | |
US60/806,072 | 2006-06-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008003023A2 true WO2008003023A2 (en) | 2008-01-03 |
WO2008003023A3 WO2008003023A3 (en) | 2008-07-24 |
Family
ID=38846534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/072325 WO2008003023A2 (en) | 2006-06-28 | 2007-06-28 | Solar array tracker controller |
Country Status (2)
Country | Link |
---|---|
US (1) | US20090320827A1 (en) |
WO (1) | WO2008003023A2 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7895017B2 (en) | 2008-07-24 | 2011-02-22 | Solfocus, Inc. | System to increase SNR of CPV-generated power signal |
EP2318775A2 (en) * | 2008-07-16 | 2011-05-11 | Sopogy, Inc. | Solar thermal energy array and drive |
US8076625B2 (en) | 2009-02-25 | 2011-12-13 | Solfocus, Inc. | Field level tracker controller |
US8229581B2 (en) * | 2008-07-03 | 2012-07-24 | Mh Solar Co., Ltd. | Placement of a solar collector |
US8253086B2 (en) | 2008-07-03 | 2012-08-28 | Mh Solar Co., Ltd. | Polar mounting arrangement for a solar concentrator |
US8345255B2 (en) | 2008-07-03 | 2013-01-01 | Mh Solar Co., Ltd. | Solar concentrator testing |
US8450597B2 (en) | 2008-07-03 | 2013-05-28 | Mh Solar Co., Ltd. | Light beam pattern and photovoltaic elements layout |
US20130206205A1 (en) * | 2009-06-29 | 2013-08-15 | Sunedison, Llc | Solar Power System and Solar Energy Chasing Method Thereof |
US8646227B2 (en) | 2008-07-03 | 2014-02-11 | Mh Solar Co., Ltd. | Mass producible solar collector |
TWI451577B (en) * | 2008-07-02 | 2014-09-01 | Sunplus Mmedia Inc | Solar tracking device and method for tracking thereof |
WO2015051804A1 (en) | 2013-10-11 | 2015-04-16 | Jacobsen Victor Timm Fagerlund | A solar cell system and a method of initializing and operating such system |
US9920957B2 (en) | 2012-12-28 | 2018-03-20 | Sunpower Corporation | Drive with integrated inclination sensor |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8413671B2 (en) * | 2008-11-28 | 2013-04-09 | Oliver Joen-An Ma | Intelligence outdoor shading arrangement |
US8061374B2 (en) * | 2008-11-28 | 2011-11-22 | Wanda Ying Li | Intelligent outdoor sun shading device |
US20100206303A1 (en) * | 2009-02-19 | 2010-08-19 | John Danhakl | Solar Concentrator Truss Assemblies |
KR101664203B1 (en) * | 2009-05-12 | 2016-10-10 | 삼성전자 주식회사 | Apparatus and method for ofering charge information of a portable terminal having a solar battery |
US8186628B2 (en) * | 2009-08-12 | 2012-05-29 | Raytheon Company | Multi-axis articulated solar light shade for space-based sensors |
WO2011066315A1 (en) * | 2009-11-24 | 2011-06-03 | Guy Pizzarello | Low profile solar tracking systems & methods |
US8455806B2 (en) * | 2010-01-18 | 2013-06-04 | Sunpower Corporation | Photovoltaic assembly for use in diffuse weather conditions and related methods |
US8502129B2 (en) * | 2010-02-16 | 2013-08-06 | Western Gas And Electric, Inc. | Integrated remotely controlled photovoltaic system |
US20110227695A1 (en) * | 2010-03-19 | 2011-09-22 | Wanda Ying Ll | Remote control system of outdoor shading group |
MX343473B (en) * | 2010-05-28 | 2016-11-07 | Solarcity Corp | Heliostat repositioning system and method. |
CN103119380B (en) * | 2010-07-15 | 2015-07-15 | 克博蒂克斯公司 | Robotic heliostat system and method of operation |
KR101035363B1 (en) * | 2010-11-01 | 2011-05-20 | 주식회사 유일엔시스 | System for web control of solar tracking |
US8442790B2 (en) | 2010-12-03 | 2013-05-14 | Qbotix, Inc. | Robotic heliostat calibration system and method |
AU2012220646B2 (en) * | 2011-02-22 | 2015-11-26 | Sunpower Corporation | Solar tracker drive |
US9494341B2 (en) | 2011-05-27 | 2016-11-15 | Solarcity Corporation | Solar tracking system employing multiple mobile robots |
WO2012170988A1 (en) * | 2011-06-10 | 2012-12-13 | University Of Houston | Portable, self-sustained solar deployment |
US20130020874A1 (en) * | 2011-07-19 | 2013-01-24 | Ayotte Keith | Portable solar power and battery charger system |
AU2012323774A1 (en) * | 2011-10-14 | 2013-10-24 | Carbontrack Pty Ltd | Interface device for an energy harvesting system |
US8895836B2 (en) * | 2011-10-19 | 2014-11-25 | King Saud University | Dual axis solar tracker apparatus and method |
US9030829B2 (en) | 2012-10-22 | 2015-05-12 | Oliver Joen-An Ma | Modular accessory |
EP3108186B1 (en) | 2014-02-19 | 2021-03-31 | Array Technologies, Inc. | Solar trackers incorporating torsion limiters |
US10078856B2 (en) | 2016-05-09 | 2018-09-18 | Shadecraft, Inc. | Mobile computing device control of shading object, intelligent umbrella and intelligent shading charging system |
CN104656677A (en) * | 2015-03-17 | 2015-05-27 | 滁州学院 | Sunshine tracker capable of setting longitude and latitude along with time |
US10327521B2 (en) | 2015-05-22 | 2019-06-25 | Armen Sevada Gharabegian | Intelligent shading objects |
US20170070187A1 (en) * | 2015-09-09 | 2017-03-09 | Mahindra Susten Pvt Ltd. | Solar tracking system and a method thereof |
US10126131B2 (en) | 2015-10-26 | 2018-11-13 | Enphase Energy, Inc. | Automated photovoltaic geospatial location |
US10455395B2 (en) | 2016-05-09 | 2019-10-22 | Armen Sevada Gharabegian | Shading object, intelligent umbrella and intelligent shading charging security system and method of operation |
US10250817B2 (en) | 2016-05-09 | 2019-04-02 | Armen Sevada Gharabegian | Shading object, intelligent umbrella and intelligent shading charging system integrated camera and method of operation |
US10912357B2 (en) | 2016-05-09 | 2021-02-09 | Shadecraft, LLC | Remote control of shading object and/or intelligent umbrella |
US10813422B2 (en) | 2016-05-09 | 2020-10-27 | Shadecraft, Inc. | Intelligent shading objects with integrated computing device |
US10159316B2 (en) | 2016-05-09 | 2018-12-25 | Shadecraft, Inc. | Intelligent shading charging systems |
US10094138B2 (en) * | 2016-12-29 | 2018-10-09 | Shadecraft, Inc. | Control of multiple intelligent umbrellas and/or robotic shading systems |
US11578860B2 (en) | 2018-02-20 | 2023-02-14 | ZHUN-AN Ma | Stand for portable accessory |
USD869718S1 (en) | 2018-02-20 | 2019-12-10 | ZHUN-AN Ma | Umbrella attached light |
EP3845089A3 (en) | 2018-02-20 | 2021-09-29 | Activa Leisure Inc. | Portable accessory |
US10439550B1 (en) | 2018-09-18 | 2019-10-08 | Sebastian Goodman | System and method for positioning solar panels with automated drones |
US11926442B2 (en) | 2021-04-07 | 2024-03-12 | Ball Aerospace & Technologies Corp. | Multiple function spacecraft sunshade systems and methods |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4620771A (en) * | 1984-09-06 | 1986-11-04 | So-Luminaire Systems Corp. | Combined solar tracking reflector and photovoltaic panel |
US5791598A (en) * | 1996-01-16 | 1998-08-11 | Globalstar L.P. and Daimler-Benz Aerospace AG | Dynamic bias for orbital yaw steering |
US20060201498A1 (en) * | 2005-01-31 | 2006-09-14 | Olsson Mark S | Solar collection apparatus and methods |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4107521A (en) * | 1976-10-14 | 1978-08-15 | Gordon Robert Winders | Solar sensor and tracker apparatus |
US4175391A (en) * | 1977-12-12 | 1979-11-27 | Dow Corning Corporation | Self reorienting solar tracker |
US4215410A (en) * | 1979-02-09 | 1980-07-29 | Jerome H. Weslow | Solar tracker |
US4368962A (en) * | 1980-03-13 | 1983-01-18 | Hultberg Donald E | Solar tracking apparatus and system |
US4445030A (en) * | 1981-12-31 | 1984-04-24 | Acurex Corporation | Tracking arrangement for a solar energy collecting system |
US4649899A (en) * | 1985-07-24 | 1987-03-17 | Moore Roy A | Solar tracker |
US6311932B1 (en) * | 1999-11-30 | 2001-11-06 | Space Systems/Loral Inc. | Yaw steering momentum system |
US6688303B2 (en) * | 2001-06-22 | 2004-02-10 | Science Applications International Corporation | Method and system for controlling operation of an energy conversion device |
US20040216777A1 (en) * | 2003-04-30 | 2004-11-04 | Jin-Huang Pan | Solar tracking storage system and method |
-
2007
- 2007-06-28 WO PCT/US2007/072325 patent/WO2008003023A2/en active Application Filing
- 2007-06-28 US US12/304,967 patent/US20090320827A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4620771A (en) * | 1984-09-06 | 1986-11-04 | So-Luminaire Systems Corp. | Combined solar tracking reflector and photovoltaic panel |
US5791598A (en) * | 1996-01-16 | 1998-08-11 | Globalstar L.P. and Daimler-Benz Aerospace AG | Dynamic bias for orbital yaw steering |
US20060201498A1 (en) * | 2005-01-31 | 2006-09-14 | Olsson Mark S | Solar collection apparatus and methods |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI451577B (en) * | 2008-07-02 | 2014-09-01 | Sunplus Mmedia Inc | Solar tracking device and method for tracking thereof |
US8229581B2 (en) * | 2008-07-03 | 2012-07-24 | Mh Solar Co., Ltd. | Placement of a solar collector |
US8253086B2 (en) | 2008-07-03 | 2012-08-28 | Mh Solar Co., Ltd. | Polar mounting arrangement for a solar concentrator |
US8345255B2 (en) | 2008-07-03 | 2013-01-01 | Mh Solar Co., Ltd. | Solar concentrator testing |
US8450597B2 (en) | 2008-07-03 | 2013-05-28 | Mh Solar Co., Ltd. | Light beam pattern and photovoltaic elements layout |
US8646227B2 (en) | 2008-07-03 | 2014-02-11 | Mh Solar Co., Ltd. | Mass producible solar collector |
EP2318775A2 (en) * | 2008-07-16 | 2011-05-11 | Sopogy, Inc. | Solar thermal energy array and drive |
US7895017B2 (en) | 2008-07-24 | 2011-02-22 | Solfocus, Inc. | System to increase SNR of CPV-generated power signal |
US8076625B2 (en) | 2009-02-25 | 2011-12-13 | Solfocus, Inc. | Field level tracker controller |
US20130206205A1 (en) * | 2009-06-29 | 2013-08-15 | Sunedison, Llc | Solar Power System and Solar Energy Chasing Method Thereof |
US20150162868A1 (en) * | 2009-06-29 | 2015-06-11 | Sunedison, Inc. | Solar power system and solar energy tracking method |
US9920957B2 (en) | 2012-12-28 | 2018-03-20 | Sunpower Corporation | Drive with integrated inclination sensor |
US10520224B2 (en) | 2012-12-28 | 2019-12-31 | Sunpower Corporation | Drive with integrated inclination sensor |
WO2015051804A1 (en) | 2013-10-11 | 2015-04-16 | Jacobsen Victor Timm Fagerlund | A solar cell system and a method of initializing and operating such system |
Also Published As
Publication number | Publication date |
---|---|
WO2008003023A3 (en) | 2008-07-24 |
US20090320827A1 (en) | 2009-12-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20090320827A1 (en) | Solar array tracker controller | |
US8513514B2 (en) | Solar tracking for terrestrial solar arrays with variable start and stop positions | |
US20110094503A1 (en) | Method and apparatus for solar panel tracking | |
US4202321A (en) | Solar tracking device | |
US5632823A (en) | Solar tracking system | |
WO2009091339A2 (en) | A method and apparatus for automatic tracking of the sun | |
US8481906B2 (en) | Tilting/tracking system for solar devices | |
US20100102201A1 (en) | Solar Tracking for Terrestrial Solar Arrays | |
KR101195740B1 (en) | Solar generating apparatus and tracking method thereof | |
CN101764166A (en) | Solar photovoltaic tracking astronomic control system | |
US20210194417A1 (en) | Elevated dual-axis photovoltaic solar tracking assembly | |
WO2011062872A2 (en) | Inclinometer for a solar array and associated systems, methods, and computer program products | |
KR101304647B1 (en) | Solar tracker and method using the same | |
JP5061047B2 (en) | PV system tracking system | |
US20190271756A1 (en) | Solar monitoring system for measuring solar radiation intensity | |
KR20110000895A (en) | Solar generating apparatus and tracking method thereof | |
US20130032135A1 (en) | Apparatuses and Methods for Determining and Changing the Orientation of Solar Energy Capture Devices | |
US10700634B2 (en) | Mechanical solar tracker | |
Al-Naima et al. | Design and construction of a solar tracking system | |
US4402582A (en) | Parasitic driven heliostat mirror declinator | |
RU2715901C1 (en) | Sun tracking unit and method of its orientation | |
WO2008110477A1 (en) | Method and device for the operative control of the orientation of photovoltaic capturing surfaces directed to equipment for the production of electrical energy | |
WO2015051804A1 (en) | A solar cell system and a method of initializing and operating such system | |
KR20110106560A (en) | 2-axis solar tracker system with bldc motor and hall sensor feedback based on time | |
US9909730B2 (en) | Processor-controlled light-admitting heliostat |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07812411 Country of ref document: EP Kind code of ref document: A2 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12304967 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07812411 Country of ref document: EP Kind code of ref document: A2 |