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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 11594897 B1

PDFFull Text
Date of Patent:
Feb. 28, 2023

Filed:

Jun. 07, 2021

Autonomous charge balancing of distributed ac coupled batteries with droop offset

Applicant:

Enphase Energy, Inc., Petaluma, CA (US);

Inventor:

Donald Richard Zimmanck, Sebastopol, CA (US);

Assignee:

Enphase Energy, Inc., Petaluma, CA (US);

Attorney:

Moser Taboada

Primary Examiner:

Alexis B Pacheco

Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/14 (2006.01); H02J 3/32 (2006.01); H02J 13/00 (2006.01); H02J 7/35 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0019 (2013.01); H02J 3/32 (2013.01); H02J 7/0014 (2013.01); H02J 7/0045 (2013.01); H02J 7/0048 (2020.01); H02J 7/35 (2013.01); H02J 13/00007 (2020.01); Y02E 40/70 (2013.01); Y02E 60/00 (2013.01); Y04S 10/123 (2013.01); Y04S 10/14 (2013.01); Y04S 40/121 (2013.01);
Abstract

A method and apparatus for autonomous charge balancing of an energy storage device of the microgrid. In one embodiment the method comprises obtaining, at a droop control module of a power conditioner coupled to an energy storage device in a microgrid, an estimate of a state of charge (SOC) of the energy storage device; introducing a bias, the bias based on (I) the estimate of the SOC and (II) a target SOC value for each energy storage device of a plurality of energy storage devices in the microgrid, to a droop control determination made by the droop control module; and generating, by the power conditioner, an output based on the droop control determination.

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Zimmanck, Donald. (2023). Autonomous charge balancing of distributed ac coupled batteries with droop offset (U.S. Patent No. 11594897). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11594897

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