Research on Battery Charging and Discharging Control Strategy Based on AGC Scheduling

Abstract

Abstract In this paper, a battery charging and discharging method for AGC scheduling is described. For the practical consideration of the northern region, due to the lack of abundant hydropower resources, it is greatly affected by the temperature in winter and can only be used as a fine-tuning function, so the hydropower effect during the heating period in winter is not considered. Thermal power and battery energy storage devices are established to participate in the AGC scheduling system. The system state is mainly divided into four control states: conventional power supply control state, battery discharge state, battery charging state, and clean energy control state. The working area is judged on the premise that all new energy is connected to the network, and the limit control strategy is used. The lower limit of output of thermal power unit and the limit of capacity of battery unit are critical conditions. Thermal power is the main power and battery is the auxiliary power stability.