5. Output voltage of three-phase inverters

5.1. Basic variables



Output voltage

  • U_{A0}   phase voltage of the inverter
  • U_{zA}   phase voltage of the load
  • U_{AB}   phase-phase voltage


  • For the 1st harmonic component:
    • U_{A0}(1) = U_{zA}(1) … viz KEV/PVE2
    • U_{AB}(1) = √3U_{A0}(1) = √3U_{zA}(1)

Example

  • Battery voltage \ (U_ {dc} = 400 V \), what is the available voltage on the motor?