Week 4 Session 5

Explain the various applications of Power converters in an Electric vehicle.

Ans:

The various application of Power Convertyers in an EV are explined below,

1. AC to DC converter (Rectifier): AC to DC converter are required to charge the battery pack of an EV. The 230 V AC is converted in to its quivalent unregulated DC.

2. DC to DC converter: DC to DC COnverter are required to regulates the unregulated DC. The battery Pack inside the EV may be 250V DC, 400V DC, 600V DC etc so we required to step up the unregulated DC coming from the AC to DC converter. Also in EV DC to DC converter (step down) are required to supply the electric powedr to various auxiliary devices such as music system, cooling system, lighting, etc.. Step up DC to DC conveter means Boost Converter and Step down means Buck converter.

3. DC to AC Converter: The Tractin Motor of the EV required single or three phase power supply which is provided by this DC to AC converter. This is connected Between the Traction Motor and the Battery Pack.

The Converters are also required to link LV battery with HV battery.