Dual axis tracker design

ajit.nayak87

I am trying to design dual axis tracker, Here zenith & azimuth i got from Nrel MIDC calculator and MC zenith/ azimuth angle got from the Microcontroller output. Now my question here is in order to design dual axis tracker what are the angle need to be consider. how to determine exact sun position. Is there any equation related here. As it said zenith & azimuth itself gives sun position. is right or wrong.
After 12.30 here azimuth angle changed to 337 degree. So in order to design dual axis How motor action should be.
I am using 2 linear actuator and inclinometer to determine the angle of tracker.

can someone share me the algorithm how can i proceed further.
http://www.pveducation.org/pvcdrom/properties-of-sunlight/elevation-angle

I got the below answer from the link.

http://www.nrel.gov/midc/solpos/spa.html

Prophead100

The solar object at http://obex.parallax.com/object/551 has the algorithms for solar tracking both in Spin for the Propeller and C. The Spin object t has links to a matching book that explains the formulas used. Also in the object are some formulas for actuators.