Battery power control circuit, system and method

• Main Authors: YUAN HAOBING, LI XIAOFENG, XIANG CHANGBO, YU ZHAO
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2024
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention relates to the technical field of battery energy storage, and discloses a battery power control circuit, system and method.The battery power control circuit comprises a main power circuit, a BMS control unit and a battery module, the BMS control unit is electrically connected with the main power circuit, and the main power circuit is electrically connected with the battery module; the main power circuit is used for adjusting the charging power and the discharging power of the battery module, and the BMS control unit is used for collecting the current and the voltage of the main power circuit to control the main power circuit and communicates with the inverter. According to the battery power control circuit, a power adjusting circuit does not need to be arranged at the inverter end, and the main power circuit can perform charging and discharging mode control and charging and discharging power control on the battery module at the same time. When a short circuit occurs between the battery module an