Design of Battery Management System for Energy Storage Power Stations Based on Bidirectional Active Balancing
At present,lithium batteries occupy the first place in all electrochemical energy storage,but the battery units within the battery pack that operate in energy storage stations for a long time may have significant differences due to the characteristics of lithium batteries,leading to energy imbalance and reduction in operational efficiency of energy stor-age stations.A bidirectional active balancing method based on energy storage capacitors and inductors is proposed to achieve cross over energy transmission of battery cells within the battery pack by controlling the switch tube array through the balancing control module.A battery management system and balance control circuit are designed,and experimental verification and testing are conducted.The results indicate that the balancing control circuit can meet the active balancing requirements of energy storage power plants.
energy storage power stationbattery management systemequilibrium control