Inductance based Active Balancing of Lithium ion Batteries for EV Applications

Abstract:

An inductance based active balancing system is studied. With a reasonable control of the switches, the system shifts energy from the cells with higher state of charge (SOC) to those with lower SOCs. The architecture design, simulation analysis together with the determination and optimization of the system parameters are introduced in detail. A typical power Li ion battery module for electric vehicles is used to validate the proposed balancing system, and the test results indicate that the system works effectively with a high balancing efficiency.