Optical storage off-grid system architecture, control method thereof and power distribution system

• Main Authors: ZHAN HUAYI, HUANG MENG, HUANG BINGQUAN, SUN SONG, ZENG YUNHONG
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-REDRADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, E.G. USINGPHOTOVOLTAIC [PV] MODULES; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses an optical storage off-grid system architecture, a control method thereof and a power distribution system, and the optical storage off-grid system architecture comprises a DC bus, a photovoltaic power supply branch connected to one side of the DC bus, and a load output branch connected to the other side of the DC bus. The system also comprises an energy storage power supply branch connected with the DC bus, and a power taking branch connected between the photovoltaic power supply branch and the energy storage power supply branch, and the power taking branch is switched on when an energy storage battery in the energy storage power supply branch is abnormal. Compared with the prior art, the system can start the energy storage power supply branch through the photovoltaic power supply branch when the energy storage power supply branch cannot normally work to establish the bus voltage due to insufficient power supply of the energy storage battery, so that the normal operation of the system