Solar Tracking

http://scratchpad.wikia.com/wiki/Sasecurity#Energy_notes

Peswiki
http://www.rapower3.com/, https://www.youtube.com/watch?v=rRPP7STAoQE  ,

http://peswiki.com/directory:ias

https://www.youtube.com/watch?v=OR8EQ0DWpPw Solar orientation zenith azimuth

http://www.solarflower.org/

Resystech
Resystech solar tracking

Fresnel lens
https://www.gonewgen.com/ focuses via fresnel on photo cell.

Solar tracking
http://susdesign.com/sunangle/index.php Sun angle online calculation
 * http://www.thingiverse.com/thing:53321 dual axis tracker thingiverse

http://www.solarpanelstore.com

http://wiki.happylab.at/w/Solar_Arduino_tracker
 * http://susdesign.com/sunangle/index.php Sunangle software

http://www.heliotrack.com/Solar-Ethanol.html A closer view shows that this hydro-thermal / photo-voltaic collector is nothing more than a ten gallon aquarium with a small solar panel submerged in the water in front of the black plate heating element. The solar cell is encapsulated in clear epoxy so it is waterproof. The surrounding water keeps the solar panel from exceeding 160°F. What we don't know is how long the solar panel will hold up under nine times concentrated solar power or '9X CSP'. The solar panel is powering a small gearmotor as a load test to simulate a recirculation pump. http://www.heliotrack.com/Applications.html

http://www.heliowatcher.com/ carjack for zenith
 * http://www.gearseds.com/files/solar_tracker_const_guide_rev4_all3units.pdf azimuth, zenith control
 * Barsoum, Nader and Vasant, Pandian. 2010. Simplified Solar Tracking Prototype. Global Journal of Technology and Optimization (GJTO). 1: pp. 38-45. espace.library curtin edu
 * https://www.hindawi.com/journals/ijp/2011/806518/ pinhole tracking 1/10 degree accuracy but sensor costs $400.
 * http://www.ijetae.com/files/Volume2Issue9/IJETAE_0912_12.pdf Calculation of Sun Position and Tracking the Path of Sun for a
 * https://www.nrel.gov/csp/solarpaces/project_detail.cfm/projectID=19 This page provides information on Archimede, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration. Archimede is a parabolic trough plant operating in Sicily, Italy. The plant produces steam (4.72-MW equivalent) sent to a combined-cycle steam turbine rated at 130 MW. This parabolic trough system is the first using molten salt as the heat-transfer fluid. A 2-tank direct system will provide 8 hours of thermal storage.
 * http://www.academia.edu/9771442/A_research_on_parabolic_trough_solar_collector_system_control_based_on_hedge_algebra explains zenith, azimuth calculations for heliostat tracking

Servocity
https://www.servocity.com/blog/building-a-portable-solar-tracking-mount (linked from http://www.rcuniverse.com/forum/rc-robotics-autonomous-robots-490/11618804-building-portable-solar-tracking-mount.html rcuniverse.com rc robotics)

Journals
https://www.hindawi.com/journals/ijp/2011/806518/ Pointing Sensors and Sun Tracking Techniques  The Pinhole Sensor works as a pinhole camera without lenses. Figure 4 shows the main elements composing the Pinhole Sensor: pinhole and four-quadrant detector (4-detector).

http://www.ijcaonline.org/archives/volume31/number9/3965-5325 This paper presents the hardware design and implementation of a system that ensures a perpendicular profile of the solar panel with the sun in order to extract maximum energy falling on it. Renewable energy is rapidly gaining importance as an energy resource as fossil fuel prices fluctuate. The unique feature of the proposed system is that instead of taking the earth as its reference, it takes the sun as a guiding source. Its active sensors constantly monitor the sunlight and rotate the panel towards the direction where the intensity of sunlight is maximum. The light dependent resistor’s do the job of sensing the change in the position of the sun which is dealt by the respective change in the solar panel’s position by switching on and off the geared motor. The control circuit does the job of fetching the input from the sensor and gives command to the motor to run in order to tackle the change in the position of the sun. With the implementation of the proposed system the additional energy generated is around 25% to 30% with very less consumption by the system itself. In this paper, an improvement in the hardware design of the existing solar energy collector system has been implemented in order to provide higher efficiency at lower cost.

http://folk.ntnu.no/skoge/prost/proceedings/afcon03/Papers/ google "naidoo ntnu.no intelligent control solar tracking "

Solar e-books on Piratebay
http://thepiratebay.org/search/solar/0/99/601

Patents
https://www.google.ch/patents/US20100263659 zenith, azimuth worm drive(Machine design, Lathe)

papers
http://literature.rockwellautomation.com/idc/groups/literature/documents/wp/oem-wp009_-en-p.pdf

https://ia600500.us.archive.org/3/items/IJRST019/IJRST-019.pdf

1] Joe - Air Jiang, Tsong - Liang Huang , Ying - Tung Hsiao  and  Chia - Hong Chen ,‖ Maximum Power  Tracking  for Photovoltaic Power Systems ‖, Tamkang Journal of Science and Engineering, Vol. 8, No 2, pp. 147_153 ( 2005 ).

[2] Nur Muhamed, Tarequl Karim, ―The design and implementation of hybrid automatic solar tracking system‖, international journal of electrical and power engineering , international journal of electrical and power engineering, 6(3):111 - 117,2012.

[3] Nabil A. Ahmed, Masafumi Miyatake,‖ A novel maximum power point tracking for photovoltaic applications under partially shaded insolation conditions‖, Electric Power Systems Research 78 (2008) 777 – 784.

[4] Mostefa Ghassoul ,‖ Design of an Automatic Solar Tracking System to Maximize Energy Extraction‖, Intern ational Journal of Emerging Tec hnology and Advanced Engineering, Volume 3, Issue 5, May 2013 .

[5] Prof. Pooja  K.   Chhatwani,   Prof. Jayashree  S.   Somani, ‖ Intelligent  Solar   Tracker   System   Implemented   On   8051 Microcontroller ‖, International Journal of Engineering Trends and Technology (IJETT) – Volume 4 Issue 9 - Sep 2013 .

[6] M .Lokanadham,  K.Vijaya Bhaskar, ― Incremental  Conductance   Based   Maximum   Power   Point  Tracking   (MPPT)   for Photovoltaic System ‖, International Journal  of  Engineering  Research  and  Applications  (IJERA),  Vol.  2,  Issue  2,Mar - Apr 2012, pp.1420 - 1424.

[7] J. Celani, Solar Battery Charger Main tains ― High Efficiency in Low Light ‖, LT Journal of Analog Innovation, October 2013

[8] Yoash Levron and Doron Shmilovitz , Member, ― Maximum Power Point Tracking Employing Sliding Mode Control ‖, IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS — I: REGULAR PAPERS, VOL. 60, NO. 3, MARCH 2013 .

[9] Udayan Umapathi,  Gautam  Das  G, ‖ Simple Techniques  To  Improve  Solar  Panel  Efficiency  Using  A  Microcontroller  Or Soc ‖, Low Power Design, July 2011 .

papers
https://www.researchgate.net/publication/250005599_Dual_Axis_Light_Sensor_for_Tracking_Sun

Dual Axis Light Sensor for Tracking Sun Shibata, Toyokazu