INTRODUCTION
7
AEIE, RCCIIT
2.
Closed loop control/Feedback controllers- This control system
utilizes photosensor to
compare the light intensity. These sensors are fixtures at the side of panel and helps in
detection of the position of the sun.
The prototype used in this research, is that of a horizontal single axis tracker. The tracking system
utilizes photosensitive sensors to track down the movement or the path of the sun. This type of
tracking technique is classified as active solar tracking. It is based on feedback control system or
closed loop controlling. The intensities of light in our system are compared and the solar panel is
charged to move in the direction of maximum available intensity. Thus, the system works on the
feedback of the weather condition.
Effect of light intensity
Variation in the intensities of light plays a significant role in depicting the amount of power output.
This change in intensities monitors all the technical
criterions such as voltage, circuit current,
efficiency, shunt resistance etc.
As a result, higher the intensities of light,
greater is the power
output.
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