Week 4 Session 5

There are various power converter associate with electric vehicle those converter are-

→AC-DC.

→DC-DC.

→DC-AC.

One more power converter is there AC-AC but that is not that much useful for EV purposes.

 

AC-DC converter:

This type of converter mainly used in on-board charger in EV where AC supply comes and through this type of power converter it converted into DC and it can regulate by observing the state of charge and capacity.

 

DC-DC converter:

This type of power converter mainly used to transform high voltage DC to lower voltage DC supply to supply various vehicle auxiliary systems,like lighting,horn, and other electronics component.

 

DC-AC converter:

This type of converter mainly used to operate traction motor. This convert DC supply to AC supply.by controlling the frequency and the amplitude of the AC supply we can control the speed of the motor.

 

1. For horn we have to step down the dc voltage. So, for that we will use DC - DC converter and more preciously a buck converter can does the job.

2. Lighting,display,music system,thermal manage system-DC-DC converter is used.

Some of the cases it have to regulate.

And in some of cases just have to regulate the power not voltage. so, some of the regulation mode is their like discontinous mode, power regulation mode and non-bus regulation mode.