Design And Implementation Of Backup Lithium-Battery Management System For Communication

As a kind of clean and green energy, lithium-ion battery is widely applied in various fields of our production and life. In order to better take advantages of lithium battery characteristics, improve the service life of lithium batteries and protect the safety of lithium batteries, it needs to conduct effective management on the whole process of lithium batteries. Therefore, the research on lithium battery management system has extremely important and practical significance.In this paper, the backup lithium battery management system for communication base station is mainly studied in accordance with the application scenario of the lithium battery pack in the communication base station. Based on the characteristics and performance parameters of the lithium battery, the lithium battery management system applicable to communication base station is designed and analyzed. This paper introduces the main components of the system:data acquisition module, data processing module, equalization management module, protection control module and communication module, and analyzes the multiple equalization management schemes to select the appropriate scheme. At the same time, the traditional SOC estimation method is used in combination, which reduces the complexity of the algorithm and the cost of the system. At the same time, the accuracy of SOC estimation is guaranteed. The hardware circuit and the software part of the lithium battery management system are completed in this paper. The hardware circuit part mainly includes the battery voltage, temperature, current gathering circuit, balanced management circuit, protection circuit and so on. The software part mainly introduces the overall structure and work flow of the system, and analyzes and discusses the SOC estimation of the residual power. Finally, the feasibility and correctness of the system design are verified by debugging and experiment.The management system is mainly for design of the backup lithium battery for communication, and the system's functional integrity and power consumption are low, achieving low cost.