Power electronic transformer (PET) is a new type of power converter, it has not only the basic functions of transformation and isolation, but also the functions of power quality control. Based on the purpose of high performance and environmental protection of power system, Smart Distribution Grid Oriented Power Electronic Transformer is proposed, the energy exchange mechanism between the network and load is revealed. Finally, the 100kW 600V/220V three phase four wire experimental platform is built. The experimental results show that the three stage type topology structure and control strategy is feasible and has something referential value.
