Power conversion module and control method thereof, power converter and micro-grid system

• Main Authors: SUN YUXIN, GUO HAO, HUANG MENG, CHEN MANLIN, HUANG SONGRU, LIU YONGJIE
• Format: Patent
• Language: Chinese; English
• Published: 08.04.2022
• 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; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention relates to the technical field of power conversion, in particular to a power conversion module and a control method thereof, a power converter and a micro-grid system, and the power conversion module comprises a direct current conversion circuit and a switch assembly arranged on the direct current conversion circuit; when the switch assembly is in a first state, the power supply conversion module is switched to the DC conversion module. And when the switch assembly is in the second state, the power conversion module is switched into the inversion module. According to the technical scheme, the inverter and the direct-current converter can be switched back and forth by controlling the state of the switch assembly, when the micro-grid is transformed and upgraded, the redundant inverter can be used as the direct-current converter, or the redundant direct-current converter can be used as the inverter, and therefore the power consumption of the micro-grid is reduced. Therefore, the reconstruction cost