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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9148086 B1

PDFFull Text
Date of Patent:
Sep. 29, 2015

Filed:

Oct. 21, 2014

Photovoltaic dc sub-array control system and method

Applicant:

Advanced Energy Industries, Inc., Fort Collins, CO (US);

Inventors:

John Michael Fife, Bend, OR (US);

Eric Seymour, Fort Collins, CO (US);

Assignee:

Advanced Energy Industries, Inc., Fort Collins, CO (US);

Attorney:

Neugeboren O'Dowd PC

Primary Examiner:

Dharti Patel

Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02S 40/32 (2014.01); G01R 31/40 (2014.01); H02H 9/02 (2006.01); H02H 3/20 (2006.01); H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
H02S 40/32 (2014.12); H02H 9/02 (2013.01); H02S 50/00 (2013.01);
Abstract

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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Fife, John. (2015). Photovoltaic dc sub-array control system and method (U.S. Patent No. 9148086). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9148086

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