"""" [[http://www.sunreign.com/info/ProjectDonate Donate]] [[http://www.sunreign.com/info/ParabolicTrough ParabolicTrough.org]] [[http://www.sunreign.com/info/SolarBowl SolarBowl.org]] [[http://www.buildingcsp.com BuildingCSP]] =====Solar Trackers and Heliostats===== We design custom made solar traking systems for any type of motor or application. If you have questions you may send them to [[info@sunreign.com info@sunreign.com]]. ====Ways to determine position==== There are different approaches to orient towards the sun automaticaly. This also depends on the thype of mount for the mirrors chosen. The most common is using a differential between two fotocells. This does not require knowing the actual position. Another is to use stepper motors and a table of the suns position. This can also work with servo motors. Stepper motors and servos can be used to reflect sunlight, but they are a bit more expensive. A cheaper alternative to stepper motors and servo's may be an ordinary motor combined with a [[http://www.scienceprog.com/using-gray-code-for-rotary-encoders/ Gray Codeing Wheel]]. Lastly there are clock gears that can in theory operate both axis (no example known). ====Microcontroller types==== Pic(axe) based trackers ====Control Circuits==== [[http://www.greenwatts.info/ GreenWatts]] [[http://www.redrok.com/electron.htm Redrok]] [[http://www.theanalogguy.com/ The Analog Guy]] [[http://www.fusionseeker.com/ Fusionseeker Products]] [[http://home.tiscali.nl/markhome/index.html?suntrack/suntrack Suntrack]] [[http://www.redrok.com/electron.htm#led3x Red Rock Tracker]] [[http://www.phoenixnavigation.com/ptbc/articles/ptbc55.htm Schematics 1]] [[http://circuitos.cl.tripod.com/schem/r21.gif schematics 2]] [[http://www.mtmscientific.com/solartracker.html kit 1]] [[http://solarcooking.org/plans/Cookerbo.pdf Tracker Design 1]] [[http://www.altera.com/literature/dc/2007/t3c.pdf Tracker Design 2]] [[http://www.8051projects.net/e107_files/public/1242614085_16317_FT0_using_pic_complete_tracker.pdf Tracker Design 3]] [[http://www.solbot.at/ Multi heliostat ideas]] [[http://pages.prodigy.net/rich_demartile/ Suntracker]] [[http://www.mtmscientific.com/solartracker.html MTM Scientific]] [[http://shiftingsolutionsllc.com/news-articles/how-to-build-a-solar-tracking-system/ Schematic]] [[http://journal.library.iisc.ernet.in/vol200605/paper1/415-437.pdf Low Torque]] [[http://www.devicelogic.com.au/other/heliostat-control-system-for-solar-thermal-power professionals]] [[http://www.heliostat.us/howitworks.htm Rasp solar tracking]] [[http://www.green-trust.org/pvtracker.htm Steve's tracker]] [[http://www.cerebralmeltdown.com/projects/suntrackprogram/default.htm Software]] ====Heliostats PV==== [[http://www.sollandsolar.com/news/sunweb-tracker Solland Solar Tracker]] [[http://www.ades.tv/index/2 2 Axis ADES Heliostats]] [[http://www.solar-trackers.com/photogallery.asp 1 Axis Traxle]] [[http://www.solazone.com.au/tracker.htm 2 Axis Solazone]] [[http://zomeworks.com/products/pv-trackers/introduction 2 Axis Zomeworks]] [[http://www.dobontech.com/tetra-track/tetra-track.htm Theta Track]] [[http://www.degerenergie.de/de/products/ DEGERenergie]] [[http://www.tracker.cat/eng/mini_solartracker_ms-3.htm 2 Axis Feina]] [[http://www.mecasolar.com/_bin/index.php 2 Axis Mecasolar]] [[http://www.heliotrack.com Heliostat and tracking]] [[http://www.elvityl.gr/114655A7.en.aspx Heloitropio]] [[http://www.google.com/patents/about?id=fIGAAAAAEBAJ&dq=7240674 Thermal Expansion Hydraulic Patent]][[http://www.youtube.com/watch?v=7hbaGZXpFRo also here]] [[http://www.titantracker.com Titan Tracker]] ====Heliostat Solar Thermal==== [[http://www.practicalsolar.com 2 Axis Practical Solar]] [[http://rossen.ch/solar/miniheliostatfaq.html A Swiss project]] [[http://heliostat.us/ An interesting diy project]] [[http://www.iwilltry.org/b/projects/build-a-heliostat-for-solar-heating-and-lighting/ Another interesting diy project]] [[http://cheaphelios.blogspot.com/ Cheap Heliostats]] [[http://www.heliostaat.nl/ Heliostaat.nl]] ====Gear==== [[http://www.usdigital.com/applications/solar?gclid=CNLcvNbBjp8CFeZr4wodzVYzJw US Digital Inclinometers]] [[http://www.truetex.com/servomod.htm DC motor based servo]] [[http://www.h-fang.com.cn/products_index.html?gclid=CM-0vbrBjp8CFR9o4wodF1rtIQ Heavy duty gear]] [[http://www.techline.nl.linak.be/Producten/?id3=1321&gclid=CNOz-onCjp8CFYIA4wodeheGHQ Actuators (Dutch)]] [[https://utilityscalesolar.com Untility Scale]] [[http://letsmakerobots.com/node/14671 Servo based linear actuator]] [[http://www.rs-online.com/index.html Linear actuators]] [[http://www.grainger.com/Grainger/items/2L004 Gear motor]]