method for controlling charging and discharging of battery energy storage system and the same

摘要

Measuring a voltage and a frequency of the system; Measuring a state of charge (SOC) value of the battery; Calculating an SOC offset value and an SOC feedback gain value from the measured SOC value of the battery; And controlling charging and discharging of the battery by performing frequency droop control based on the voltage of the system and performing frequency droop control based on the frequency of the system, the SOC offset value, and the SOC feedback gain value, A charge / discharge control method of the apparatus is provided.