US 11,863,011 B2
Multiple input PV inverter apparatus with energy storage capability
Majid Pahlevaninezhad, Kingston (CA); and Praveen Jain, Kingston (CA)
Assigned to Sparq Systems Inc., Kingston (CA)
Filed by Sparq Systems Inc., Kingston (CA)
Filed on Jul. 29, 2022, as Appl. No. 17/876,820.
Claims priority of provisional application 63/304,301, filed on Jan. 28, 2022.
Prior Publication US 2023/0246476 A1, Aug. 3, 2023
Int. Cl. H02J 7/35 (2006.01); H02J 3/38 (2006.01)
CPC H02J 7/35 (2013.01) [H02J 3/381 (2013.01); H02J 2207/20 (2020.01); H02J 2300/26 (2020.01)] 10 Claims
OG exemplary drawing
 
1. A system for feeding AC power to a power grid, the system comprising:
a DC/AC inverter;
a plurality of DC/DC converters, each DC/DC converter being directly coupled between an energy source and said DC/AC inverter;
a control system for controlling said DC/AC inverter and for controlling at least one of said plurality of DC/DC converters;
wherein
said DC/AC inverter is coupled between said power grid and said plurality of DC/DC converters;
said energy source is either a renewable energy source or an energy storage device;
for each of said plurality of DC/DC converters controlled by said control system, said control system automatically detects whether said DC/DC converter is coupled to a renewable energy source or to an energy storage device;
for each of said plurality of DC/DC converters controlled by said control system, when said DC/DC converter is coupled to a renewable energy source, said control system operates to maximize power received from said renewable energy source;
for each of said plurality of DC/DC converters controlled by said control system, when said DC/DC converter is coupled to an energy storage device, said control system controls a charge and discharge of said energy storage device.