超级电容器对电池脉冲放电有益作用的研究

Study of EDLC benefit on battery pulse discharge

电动机启动时会产生很大的电流,但是时间很短。电池有时不能满足电机启动时的电流需求,因此会造成电机不能顺利启动。超级电容器(EDLC)具有很高的比能量,可以解决此问题。研究了电池与超级电容器并联应用时,电流在两个部件中的分配,及电机启动初期并联系统中电池电压降情况。结果表明,超级电容器对于电池在大功率脉冲放电时具有良好的辅助作用。

Motor starting needs large current,but time is very short.Sometimes,battery can not meet the requirement of motor,and then the tools can not be used normally.EDLC with high power density can solve this problem.The current distribution between EDLC and battery,and voltage drop of battery for parallel system at the beginning of motor start was presented in this study.The results show that EDLC can assist battery for high current pulse discharge.