US 12,413,072 B2
Photovoltaic energy storage and power system, and three-phase power control method, apparatus and device for load
Yuxin Sun, Guangdong (CN); Songru Huang, Guangdong (CN); Meng Huang, Guangdong (CN); Yongjie Liu, Guangdong (CN); Hao Guo, Guangdong (CN); and Yu Cui, Guangdong (CN)
Assigned to Gree Electric Appliances, Inc. of Zhuhai, Guangdong (CN)
Appl. No. 18/698,884
Filed by Gree Electric Appliances, Inc. of Zhuhai, Guangdong (CN)
PCT Filed Jul. 26, 2022, PCT No. PCT/CN2022/107834
§ 371(c)(1), (2) Date Apr. 5, 2024,
PCT Pub. No. WO2023/093097, PCT Pub. Date Jun. 1, 2023.
Claims priority of application No. 202111434967.7 (CN), filed on Nov. 29, 2021.
Prior Publication US 2024/0405562 A1, Dec. 5, 2024
Int. Cl. H02J 3/38 (2006.01); H02J 3/28 (2006.01)
CPC H02J 3/38 (2013.01) [H02J 3/28 (2013.01); H02J 2300/24 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A three-phase power control method for load(s) in a photovoltaic energy storage and power system, comprising:
obtaining a drawing or feeding power of a grid, a charging or discharging power of energy storage, and a photovoltaic generation power;
determining a generation power of an electric power system based on the drawing or feeding power of the grid, the charging or discharging power of the energy storage, and the photovoltaic generation power; and
distributing the generation power of the electric power system evenly to load(s) of each phase to achieve three-phase dynamic balancing;
wherein the distributing the generation power of the electric power system evenly to the load(s) of the each phase to achieve the three-phase dynamic balancing comprises:
obtaining a consumption power of the load(s) of the each phase at an alternating current consumption power end by an energy router provided for the load(s) of the each phase at the alternating current consumption power end of the photovoltaic energy storage and power system; and
distributing the consumption power of the load(s) of the each phase at the alternating current consumption power end of the photovoltaic energy storage and power system according to the generation power of the electric power system by the energy router provided for the load(s) of the each phase at the alternating current consumption power end, comprising:
equalizing consumption powers of load(s) of various phases at the alternating current consumption power end, the consumption power of the load(s) of the each phase being equal to one-third of the generation power of the electric power system.