Focusing Trajectory Tracking Solar Collector
Date Issued
2008
Date
2008
Author(s)
Yeh, Pei-Yin
Abstract
The research develops a more economizing solar tracker. By simulation sun focusing trajectory as a special curve, the design of Focusing Trajectory Tracking Solar Collector is established based on the curve shape. The system contains: GaAs solar cell, focusing trajectory mechanism, Fresnel lens, a stepping motor and its driver, photosensitive resistors, switches, and a microcontroller PIC18F4480. The following is features of the tracking solar collector. (1) Due to the design of focusing trajectory mechanism, one dimension move of the stepping motor can drive two dimension movement of the solar cell. (2)There is a Fresnel lens to concentrate light, but the motor is unnecessary to drive both lens and solar cell, just drive small and light solar cell. This design can substantially reduce power consumption of the motor. (3)Using photosensitive resistors as sensors in accordance with focusing trajectory tracking solar collector looks for a tracking logic to track the Sun.
Subjects
focusing trajectory tracking solar collector
GaAs solar cell
Fresnel lens
stepping motor
photosensitive resistor
micro-controller
Type
thesis
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ntu-97-R95522812-1.pdf
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