A Battery Management System Using an Active Charge Equalization Technique Based on a DC/DC Converter Topology

作者：Yarlagadda Sriram^*; Hartley Tom T; Husain Iqbal

来源：IEEE Transactions on Industry Applications, 2013, 49(6): 2720-2729.

DOI：10.1109/TIA.2013.2264794

• Battery
• battery protection
• cell balancing
• charge equalization
• management system

An active charge equalization technique based on a dc/dc converter topology is proposed in this paper. The technique achieves cell balancing of batteries in a stack in terms of both voltage and charge as the pack is being charged/discharged and in idle periods to maximize the energy and reliability of stack operation. A set of MOSFET switches controlled by a voltage monitoring circuit ensures that each battery module has the same output voltage by transferring charge from an individual battery module with the highest voltage to a weak module. An overvoltage and overdischarge protection circuit is presented to reduce the degradation of battery life and to operate each battery within the voltage limits.

• 出版日期2013-12