Systems and methods for split-cell and multi-panel photovoltaic tracking control

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United States of America

PATENT NO 11942893
SERIAL NO

16805798

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Abstract

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Split-cell and multi-panel photovoltaic backtracking control systems and methods allow for increased total power generation during low sun elevation conditions by shading a percentage of panel modules, thereby allowing for a lower angle of incidence on unshaded modules. The control systems and methods involve determining a sun elevation angle, a traditional backtracking angle, a split-cell or multi-panel backtracking angle, a single-cell or single-panel relative light transmission (RLT) based on the single-cell or single-panel backtracking angle, and a split-cell or multi-panel RLT based on the split-cell or multi-panel backtracking angle. If twice the single-cell or single-panel RLT is greater than the split-cell or multi-panel RLT, the split-cell or multi-panel backtracking angle is used; otherwise, the single-cell or single-panel backtracking angle is used. The control systems and methods may further involve determining a diffuse fraction index (DFI) and, if the DFI is greater than a DFI limit, using a DFI tracking angle.

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Patent Owner(s)

Patent OwnerAddress
NEXTRACKER LLC6200 PASEO PADRE PARKWAY FREMONT CA 94555

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abbaraju, Venkata Rahul Fremont, US 6 3
Gu, Fei Fremont, US 21 57
Liu, Yang Mountain View, US 1941 7962
Martinez, Eric Palo Alto, US 9 24

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