전기자동차용 분산형 OBC 시스템에 관한 연구

The electric vehicle charges the HV battery (High Voltage Battery) using the lithium ion battery inside the vehicle through the OBC. The utilization rate and lifetime of the battery are reduced when the charging or discharging of the battery cell is unbalanced. So, SOC balancing is essential. Therefore, this paper presents the SOC balancing algorithm for the distributed OBC system which can charge the bettery cell of each module.