Event-driven Secondary Control of Demand-side Battery Energy Storage
In order to solve the flexible control problem of demand-side power resources,an event-driven distributed fixed-time secondary control scheme was proposed.This scheme is aimed at the demand-side battery energy storage system(BESSs),which is designed to adjust its energy level,power and frequency to compensate for random frequency and power fluc-tuations in the demand-side grid.Considering that only a subset of batteries on the demand side can receive the information of the main grid,the study achieves energy-level balancing,active power sharing,and frequency regulation of BESSs within a fixed time by using a distributed control algorithm to regulate the energy level,active power,and frequency of each battery.In addition,the scheme introduces an event-driven mechanism that eliminates the need for continuous communication and frequent switching of control signals,thus significantly reducing energy consumption during BESSs regulation.Finally,the simulation re-sults showed that the proposed control scheme can achieve rapid regulation of demand-side power resources with low energy con-sumption.
battery energy storage systemsdistributed controlfixed-time stabilityevent-driven mechanismpower re-source regulation