Research on Modeling and Simulation of cyber Physical System of AC/DC Hybrid Distribution Network Based on Power Electronic Transformer

The close integration of distributed renewable energy and the close integration of cyber physical system bring challenges for power system modeling. In this paper, Firstly, the topology and control strategy of power electronic transformer (PET) are proposed. Secondly, this paper develops a modeling method about the hybrid distribution network PET based on finite state machine (FSM) and the joint simulation platform of cyber Physical system (CPS) based on RT-LAB, OPNET and control platform. Taking the hybrid distribution network based on PET with different penetration of photovoltaics (PV) as an example, the validity of PET model and control strategy is verified by comparing physical simulation results with joint simulation results of cyber physical system.