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International Journal of Photoenergy
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International Journal of Photoenergy
/
2020
/
Article
/
Fig 1
/
Research Article
Evaluation and Design of Power Controller of Two-Axis Solar Tracking by PID and FL for a Photovoltaic Module
Figure 1
Angles to estimate the solar position, the azimuthal angle (
λ
), and the solar altitude (
α
).