12-pulse buck rectifier and partial power processing based converter for ultra-high power EV charging

MSc thesis of Dun Lan

In this thesis, a two-stage power electronics converter for DC fast battery charging application is designed and studied. A buck type 12-pulse converter with triangular current shaping method for harmonic reduction and power factor correction is chosen to be the front-end converter. Back-end converter is designed to be a full bridge converter with partial power processing technique. This thesis innovatively proposed highly efficient ultra-fast charger using the multiple pulses rectifier with partial power processing DC-DC converter.