小型电动车蓄电池保护器

Small Electric Vehicle Battery Protector

受电化学反应速率的限制,蓄电池的功率密度比较小,当负载功率突变时,不能快速吸收或释放目标功率,较难满足系统的动态要求。法拉电容充放电时,内部发生的是物理变化,具有功率密度大的特点,可以在短时间内提供较大功率,为其他设备提供缓冲,但是能量密度比较低,因此超级电容与蓄电池在性能上有较强的互补性,常将这两种储能元件通过一定的方式连接构成混合储能系统,进而构成电池保护器。

Limited by the electrochemical reaction rate,the power density of the battery is relatively small.When the load power changes suddenly,it cannot quickly absorb or release the target power,and it is difficult to meet the dynamic requirements of the system.What happens inside the farad capacitor when it is charged and discharged is a physical change.It has the characteristics of large power density.It can provide large power in a short time and provide buffer for other equipment,but the energy density is relatively low.Therefore,the performance of supercapacitors and batteries has strong complementarity,these two energy storage elements are often connected in a certain way to form a hybrid energy storage system,and then form a battery protector,which is the starting point of this article.