Power Control Strategy of Bidirectional Converter in Low Voltage AC/DC Hybrid Microgrid

Inhalt:
The bidirectional converter is at the core of the hybrid microgrid, and it plays the role of power between two subnets. In order to realize the power flow and balance between two subnets, a power control strategy for hybrid microgrid is proposed. First, this paper analyzes the droop characteristics of the microgrid under low-voltage conditions, introduces the difference in voltage fluctuations between two subnets, designs the power mutual assistance target coefficient, and proposes a power control strategy. Finally, a model was built in Matlab/Simulink to verify the effectiveness of the proposed strategy.