摘要
蓄电池是舰船不间断电源设备重要的后备供电电源,基于LiFePO4-石墨烯复合电极材料的锂电池相比传统铅酸蓄电池具有放电容量大、能量密度高、循环寿命长等显著应用优势。但是锂电池也存在着由于单体电池特性不一致导致的性能下降和安全问题。均衡控制是解决不一致问题的最有效途径。本文针对不间断电源用石墨烯锂电池模块进行均衡系统设计,设计中重点考虑了均衡系统对绝缘耐压性能、电磁兼容性能和安全性能的特殊要求,分别提出了基于双壳体结构的绝缘耐压设计方法、基于多通道隔离的电磁兼容设计方法和基于双重保护的可靠性设计方法。试验结果验证了所设计均衡系统的有效性。
The battery is the most important backup power for the uninterruptible power supply equipment in ship.Compared with the conventional lead-acid battery,the lithium battery based on the composited LiFePO4-graphene electrode material has significant application advantages such as large discharge capacity,high energy density and long cycle life.However,lithium batteries suffer from performance degradation and safety problems due to the inconsistent characteristics of cells.Equilibrium control is the most effective way to solve the inconsistencies.In this paper,the equilibrium system of composited lithium-graphene battery module for uninterruptible power supply is designed.The specific requirements of insulation,electromagnetic compatibility and safety for equilibrium system are considered in the design.The insulation design method based on double-shell structure,electromagnetic compatibility design method based on multi-channel isolation and reliability design method based on dual protection are proposed respectively.Experimental results validate the effectiveness of the designed equilibrium system.
作者
余跃听
蔡久青
徐正喜
吴浩伟
YU Yue-ting;CAI Jiu-qing;XU Zheng-xi;WU Hao-wei(Naval Representative Office in the 719 Research Institute,Wuhan 430064,China;Wuhan Second Ship Design and Research Institute,Wuhan 430064,China)
出处
《舰船科学技术》
北大核心
2019年第11期106-109,共4页
Ship Science and Technology
关键词
石墨烯
锂电池模块
电池管理
被动均衡
Graphene
lithium-ion battery module
battery management
passive equilibrium
