US 12,438,374 B2
Energy storage system associated with solar system and method for controlling energy storage system
Jongcheol Kim, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 18/279,303
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Aug. 31, 2022, PCT No. PCT/KR2022/013015
§ 371(c)(1), (2) Date Aug. 29, 2023,
PCT Pub. No. WO2023/058908, PCT Pub. Date Apr. 13, 2023.
Claims priority of application No. 10-2021-0132117 (KR), filed on Oct. 6, 2021.
Prior Publication US 2024/0136821 A1, Apr. 25, 2024
Prior Publication US 2024/0235201 A9, Jul. 11, 2024
Int. Cl. H02J 3/32 (2006.01); H02J 3/38 (2006.01); H02J 7/35 (2006.01)
CPC H02J 3/32 (2013.01) [H02J 3/381 (2013.01); H02J 7/35 (2013.01); H02J 2207/20 (2020.01); H02J 2300/26 (2020.01)] 23 Claims
OG exemplary drawing
 
1. An energy storage system connected with a photovoltaic system and a power grid, the energy storage system comprising:
a plurality of direct current/direct current (DC/DC) converters configured to control a plurality of battery racks including a plurality of batteries;
a power conversion system configured to control power in connection with the plurality of DC/DC converters and the photovoltaic system; and
a power management controller configured to determine operating modes and output references of the power conversion system and the plurality of DC/DC converters according to a state of the photovoltaic system.