Research on Control Method of Energy Storage Interface for DC Micro-grid

摘要

The non-isolated bidirectional DC/DC converter is used as the converter of the battery energy storage system to connect the DC micro-grid. In this paper, the improved droop control method and the frequency control method are used to control the parallel connection of the energy storage interface converter respectively. The output power of each energy storage interface converter is balanced while maintaining the bus voltage constantly. The simulation model of MATLAB / Simulink platform is built and verified by simulation experiments. The simulation results show the feasibility of the control method.