摘要
在汽车启动过程中,传统汽车采用的是直流万向电机启动器。在起动的瞬间,电机转速为零,机械传动部分有很大的阻尼,而且起动电路的电枢电阻、蓄电池电阻和线路电阻都很低,所以起动电流很大,可达数百台万向电机。当超级电容器与蓄电池并联时,汽车启动过程会得到极大的改善。超级电容器具有使用寿命长、电流密度大、环保等优点。此外,它们的能级可以从它们的终端电压估计出来。由于超级电容器供电的电动汽车只需充电30秒就可以运行20分钟以上,因此充电电动汽车不会成为主要问题。
In the car starting process,the traditional car uses the DC universal motor starter.At the moment of starting,the motor speed is zero,the mechanical transmission part is greatly damped,and the armature resistance,battery resistance and line resistance of the starting circuit are very low,so the starting current is very large,up to hundreds of universal motors.When the super capacitor is connected in parallel with the battery,the starting process of the car will be greatly improved.Super capacitors have the advantages of long service life,high current density,and environmental protection.In addition,their energy levels can be estimated from their terminal voltages.Since electric vehicles powered by super capacitors can run for more than 20 minutes in only 30 seconds,charging electric vehicles will not become a major problem.
作者
周美玲
刘欣欣
Zhou Meiling;Liu Xinxin
出处
《时代汽车》
2020年第23期138-139,共2页
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