Microgrid green new energy system and power energy control method

• Main Authors: FENG YE, LI JING, ZHOU MENGYA, PU BOYU, LIU YIFENG, WANG JING, XIAO YANZI, WANG JUN, FU WEI, TANG BIHONG, ZHANG YUNGUI, BA YUNLIN, JIANG WEI, GAN HONGJIAN
• Format: Patent
• Language: Chinese; English
• Published: 02.05.2023
• 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; 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; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention provides a micro-grid green new energy system and a power energy control method, and the system comprises an AC-to-DC module which converts an AC power supply into a bus voltage and supplies the bus voltage to a DC bus; the bidirectional AC-to-DC module is used for feeding redundant electric energy on the DC bus back to an AC power grid; the direct-current supply module generates electric energy based on the new energy and supplies energy to the direct-current bus; and the direct-current load obtains electric energy through the direct-current bus. According to the invention, on the premise that the existing power supply architecture of the base station is not changed, excess energy generated by new energy is fed to a power grid or an alternating current load, so that the capability of absorbing green new energy is improved; the rated power of the bidirectional AC-to-DC module is slightly greater than the difference between the maximum generation power of new energy and the consumed power of the