New energy access technology based on simultaneous AC and DC distribution network

By using the zigzag transformer, the scheme of medium-voltage simultaneous AC and DC distribution network is designed. The topological structure of power router is put forward based on the simultaneous AC and DC distribution network. The feasibility of the simultaneous AC and DC distribution network and power router are verified by using MATLAB/Simulink. Taking line voltage drop and line loss as performance constraints, this paper compares medium-voltage simultaneous AC and DC distribution network and medium-voltage AC distribution network. We analyse simultaneous AC and DC distribution network performance on the condition of different ratio of AC and DC voltage superposition component. The results show that simultaneous AC and DC distribution network performance is better than AC distribution network when AC and DC voltage components are in a certain range of superposition ratio.