2. Power converters for electric vehicles

2.3. Application comparison

Public transport vehicles

  • Traction trolley power supply - stable (with a certain tolerance) DC voltage
  • Large installation space (roof containers)
  • Air-cooled inverters
  • Modularity
  • Noise level requirements: yes, but limited

Trolleybus Škoda 31Tr (250 kW)



Containers for traction equipment of public transport vehicles


Electric and hybrid cars

  • Traction battery supply → significant difference between charged and discharged battery voltage.
  • Limited space for drive installation
  • Liquid cooling
  • Modularity? There is not much space.
  • Noise level requirements: high

    Nissan Leaf (BEV)


    Limited space for drive installation in VW ID.3


    Voltage drop of traction battery during driving




    https://www.skoda.cz
    https://www.nissan.cz
    https://www.volkswagen.de