Research of battery management system for integrated power supply

This paper proposes the two-stage control structure which is composed of battery management unit and central management unit in order to improve the monitoring and management technology of integrated power supply in power system. The paper presents a battery management system (BMS) design scheme. We designed its hardware circuit and verified in the laboratory conditions. The results show that the device can conduct real-time monitoring of the battery state accurately, such as the battery charge and discharge current, voltage, temperature and the state of charge. It can also timely alarm and carry out protection action in the abnormal state of the battery group. This study ensures battery safety and extends the lifespan of the battery group.