US 12,255,463 B2
Photovoltaic power generation system
Jeong Heum Lee, Pohang-si (KR)
Assigned to Hanwha Solutions Corporation, Seoul (KR)
Appl. No. 18/254,305
Filed by HANWHA SOLUTIONS CORPORATION, Seoul (KR)
PCT Filed Nov. 12, 2021, PCT No. PCT/KR2021/016515
§ 371(c)(1), (2) Date May 24, 2023,
PCT Pub. No. WO2022/114624, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 10-2020-0162484 (KR), filed on Nov. 27, 2020.
Prior Publication US 2024/0097452 A1, Mar. 21, 2024
Int. Cl. H02J 3/38 (2006.01); H02J 3/32 (2006.01); H02J 7/00 (2006.01); H02J 7/35 (2006.01)
CPC H02J 3/388 (2020.01) [H02J 3/32 (2013.01); H02J 7/00034 (2020.01); H02J 7/0031 (2013.01); H02J 7/00712 (2020.01); H02J 7/35 (2013.01); H02J 2207/20 (2020.01); H02J 2300/24 (2020.01)] 3 Claims
OG exemplary drawing
 
1. A photovoltaic power generation system, comprising:
a plurality of PV modules;
a power generation efficiency optimization unit corresponding to a corresponding one of the PV modules one-to-one, the power generation efficiency optimization unit including inverters and configured to convert power produced from the PV modules into AC power, and supply the converted power to a power grid through an AC line; and
a controller configured to check and control monitoring information detected by the power generation efficiency optimization unit, the controller including battery configured to store the converted power supplied from the power generation efficiency optimization unit,
wherein the power generation efficiency optimization unit includes
a converter configured to convert power produced by a corresponding one of the PV modules and charge the converted power to a battery through a battery line, and
a communication module unit configured to transmit the monitoring information to a control unit of the controller through power line communication using the battery line and perform communication between a plurality of the power generation efficiency optimization units including the power generation efficiency optimization unit.