BACKUP VOLTAGE AND FREQUENCY SUPPORT METHOD FOR 100%-RENEWABLE ENERGY SENDING-END GRID

A backup voltage and frequency support method for a 100%-renewable energy sending-end grid, including: (S) selecting a plurality of support nodes in the 100%-renewable energy sending-end grid; (S) mounting a backup voltage and frequency support device at each support node; and (S) dynamically adjusting an active power output of a renewable energy station of the 100%-renewable energy sending-end grid according to a frequency of a grid-connection point.