The energy storage battery management system is a system used for monitoring, controlling, and protecting batteries. Its basic principle is to monitor the voltage, current, temperature and other parameters of the battery in real time, provide accurate information on the battery status, and take corresponding measures as needed to ensure the safety, extend the lifespan, and improve performance of the battery. The basic principles and key technologies of battery management system mainly include the following aspects:
1、Battery status monitoring：Battery status monitoring is the most basic function of a battery management system, aimed at real-time monitoring of the battery's operating status to ensure that the battery operates within a safe and reliable range. This requires real-time monitoring of parameters such as voltage, current, and temperature of the battery. When these parameters exceed the set range, the battery management system needs to take corresponding measures in a timely manner, such as alarms, cutting off power, etc.
2、Battery protection: The battery management system needs to protect the battery from overcharging, over discharging, over temperature, short circuit, etc. to prevent battery damage and accidents. This usually requires first mastering the characteristic parameters and charge discharge curve of the battery. When the operating state of the battery approaches the critical point, the battery management system will trigger protective measures to ensure the safe operation of the battery.
3、Battery balance management: During the use of batteries, there may be uneven performance, which can lead to a shortened overall battery life. The battery management system needs to balance battery management to improve the overall performance of the battery pack.
4、Data collection and analysis: The battery management system needs to collect and analyze the charging and discharging data of the battery to evaluate its performance and status, thereby providing a basis for optimizing the use and management of the battery.
5、Battery state prediction: In order to better manage batteries, the battery management system needs to predict the battery's state. By using mathematical models and algorithms to estimate the battery's state, it can predict the remaining life, capacity, and other parameters of the battery, providing users with convenient decision-making basis.
In summary, being familiar with and mastering the basic principles and key technologies of battery management systems can improve battery performance, extend lifespan, and ensure safe operation of batteries. With the rapid development of the new energy industry, the application of battery management systems in energy storage systems and other fields is becoming increasingly widespread. Practitioners need to master the basic principles, key technologies, and required skills of battery management systems.