The hybrid AC/DC microgrid is an important part of the future smart grid. This paper is concerned with the typical topology and operation mode for the hybrid AC/DC microgrid. Then

the power balance relationship in each operation mode is analyzed in detail. Because of the large impedance ratio in the low voltage grid

a voltage and active power control system is designed and the power exchange and control of the interlinked converter is enunciated. Finally

a new AC/DC droop control strategy is proposed. The strategy gives the power-voltage droop relationship based on the function of the capacitor in the power transmission between AC side and DC side. The proposed control algorithm is verified on a PSCAD/EMTDC simulation platform

which shows that the interlinked converter can accurately maintain the power balance between the AC side and DC side based on the voltage information of both sides

thus guaranteeing the voltage quality of the AC and DC microgrid. This work is supported by National High Technology Research and Development Program of China(863 Program)(No. 2015AA050102).