舰船大容量蓄电池组短路尖端放电故障机理研究  

Research on tip discharge mechanism in short-circuit process of large capacity battery for ship

作　　者：徐正喜[1] 蔡久青 郑中祥[1] 陈涛[1] XU Zheng-xi;CAI Jiu-qing;ZHENG Zhong-xiang;CHEN Tao(Wuhan Second Ship Design and Research Institute,Wuhan 430064,China)

机构地区：[1]武汉第二船舶设计研究所

出　　处：《舰船科学技术》2020年第1期128-131,共4页Ship Science and Technology

摘　　要：蓄电池作为舰船重要的后备电源和应急供电电源,其运行安全性直接关乎舰船战斗力和舰船安全。本文从偶发的一起由蓄电池模块电压检测线短路导致蓄电池组短路的故障现象分析出发,通过建立蓄电池组短路故障电路模型,对短路故障过程进行了模态分析,阐述了暂态过程能量产生和释放路径,从而在物理机理上解释了蓄电池组短路故障导致气隙击穿并引发尖端放电问题的原因。最后,针对蓄电池组短路故障根源,提出了系统级、结构级、保护级、绝缘级多层次设计方法。As the most important backup power source and emergency power supply in ship, the operational safety of the battery is directly related to the combat effectiveness and safety of the ship. This paper focuses on the failure phenomenon of the battery pack caused by the short circuit of voltage detection lines. The modal analysis of the short circuit process is carried out based on the established short-circuit fault model. Then, the generation and transmission path of short circuit energy is expounded. The air gap breakdown and tip discharge phenomenon of the short circuit fault is explained by physical mechanism. Finally, based on the key source of short-circuit fault, the multilevel design method with system level, structure level, protection level and insulation level are proposed.

关 键 词：蓄电池 短路 尖峰电压 气隙击穿 尖端放电 

分 类 号：TM912[电气工程—电力电子与电力传动]