Automatic solar tracking system



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The mechanism 
is accountable to furnish with accurate movements, in the sake of following the 
footsteps of the sun throughout the day. The prototype of the device is made durable enough to 
withstand unfavorable weather condition. This mechanism of the solar tracking systems classifies 
themselves into two segments single axis tracker, dual axis tracker.[8] 
Single axis tracking can be considered as one of the handy systems or prime solution in terms of 
small-scale photovoltaic power plants. Single axis tracking can be done using three different 
arrangements, which are based on the different axes of tracking- 

Inclined shaft installation 

South-North axis horizontal installation 

East-West axis horizontal installation. 
Single axis tracker tracks in a single cardinal direction. The tracker has a single row tracking 
configuration. The above maintained methods are the different arrangements in which single axis 


INTRODUCTION 
6
AEIE, RCCIIT 
tracker can be implemented. The working mechanism of all the maintained methods is at par with 
each other. The angle of the sun with the surface of the collector is computed and examined, the 
collectors are thus charged to track down the movement of the sun to meet the expectations of 
captivating a greater percentage of solar radiance.[9] 
There are numerable other imposition of single axis tracking tracker, including- 

Horizontal Single Axis Tracker (HSAT) 

Horizontal Single Axis Tracker with Tilted Module (HTSAT) 

Vertical Single Axis Tracker (VSAT) 

Tilted Single Axis Tracker (TSAT) 

Polar Aligned Single Axis Tracker (PSAT) 
The rotational axis in the dual axis tracker are orthogonal to each other. One of the axes is fixed in 
accordance with the ground level. This axis is known as the primary axis and the other axis is 
hence called the secondary axis. Dual axis trackers moved along two cardinal directions, horizontal 
and vertical. There are many applications of the dual axis tracker, the two most common being- 

Tip-Tilt Dual Axis Tracker 

Azimuthal Altitude Dual Axis Tracker. [10] 
The efficiency of these tracker is much more than any single axis tracker. It conventionally follows 
the movement of the un and hence captivates maximum solar energy. 
On the basis of the 

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