I am currently getting into the topic of electric vehicles and I often come across the terms link voltage and link capacitor.
As far as I know is that the fully charged battery must not be switched suddendly to the system (AC/DC and Motor) because of the link capacitor. The high inrush current could damage this capacitor and the link voltage should be raised steadily using a pre-charge switch which is in series to a pre-charge resistor. After pre-charging the intermediate curcuit, the main switch (without the pre-charge resistor) of the battery can be closed. Therfore without power loss.
First of all I don't know to which component this capacitor belongs. Is it built in the AC/DC converter? If so why is it needed? Or is it just because of the capacitive behavior of the cable?
Where do the terms link voltage/capacitor belong to? To the field of power electronics?
Could someone plase give me more information on the terms link voltage and link capacitor regarding charging and discharging of the battery system?
How long does it usually take to load the capacitor and what are the damages that could happen if no pre-charging happens?
Does the link voltage has to be the same as the current battery voltage?
Where do you measure the link voltage? Across the link capacitor?
Are there any online materials or books available you can recommend?