Photovoltaic DC sub-array control system and method

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United States of America Patent

PATENT NO 9148086
APP PUB NO 20150107646A1
SERIAL NO

14520128

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Abstract

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A photovoltaic energy conversion system, apparatus, and method for controlling DC sub-arrays of a photovoltaic array are disclosed. The method may include coupling each of N homerun branches from N sub-arrays to an inverter via N switches and monitoring current through each of the N homerun branches. A forward current through each of the N homerun branches is compared with a forward current threshold, and any backfeed current through any of the N homerun branches is compared with a backfeed current threshold. One or more of the N switches are opened in response to either the forward current exceeding the forward current threshold or the backfeed current exceeding a backfeed current threshold.

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Patent Owner(s)

Patent OwnerAddress
SMA SOLAR TECHNOLOGY AG34266 NIESTETAL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fife, John Michael Bend, US 29 298
Seymour, Eric Fort Collins, US 37 1905

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