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.

Date of Patent:
May. 12, 2026

Filed:

Sep. 20, 2022
Applicant:

Nextpower Llc, Fremont, CA (US);

Inventors:

Alexander W. Au, Oakland, CA (US);

Yang Liu, Mountain View, CA (US);

Assignee:

NEXTPOWER LLC, Fremont, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/35 (2006.01); H02J 1/10 (2006.01); H02J 1/102 (2026.01); H02J 3/32 (2006.01); H02J 3/38 (2006.01); H02J 3/388 (2026.01); H02J 3/46 (2006.01); H02J 7/00 (2006.01); H02S 40/32 (2014.01); H02S 40/36 (2014.01); H02S 40/38 (2014.01);
U.S. Cl.
CPC ...
H02J 7/35 (2013.01); H02J 1/102 (2013.01); H02J 3/32 (2013.01); H02J 3/381 (2013.01); H02J 3/388 (2020.01); H02J 3/46 (2013.01); H02J 7/0013 (2013.01); H02S 40/32 (2014.12); H02S 40/36 (2014.12); H02S 40/38 (2014.12); H02J 1/106 (2020.01); H02J 2300/26 (2020.01);
Abstract

Systems and methods integrate advanced solar tracker, battery, inverter, and software technologies to improve performance, plant output, and costs. The systems may incorporate an advanced vanadium flow battery (VFB) that is DC-voltage (DV)-coupled to photovoltaic (PV) arrays for high, round-trip efficiency. The systems incorporate a DC architecture that optimizes performance for commercial, industrial, agricultural, and utility applications. A distributed direct current (DC) power system includes a centralized, single-stage inverter; PV arrays; maximum power point tracking (MPPT) converters coupled between the PV arrays and the centralized, single-stage inverter; batteries; and DC-DC battery converters (DCBCs) coupled to the batteries. The MPPT converters maximize solar power production by the PV arrays and minimize mismatch between the PV arrays. The DCBCs manage charge and discharge of the batteries, enable the interconnection of the PV arrays and the batteries, and supply a constant medium voltage to the central inverter.


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