Coordinated power flow control of DC microgrid consisting of distributed generations and energy storage system

Abstract

In this paper, to operate DC microgrid in a flexible and reliable way, a coordinated power flow control strategy of DC microgrid and control methodology of power electronic converters are presented in both the grid-tied mode or islanded mode. For this purpose, the operation algorithm and power flow of DC microgrid are selected based on the distributed generation power, load demand, and energy storage system (ESS) status. The effectiveness of the system power balance and power flow control method are verified during operation mode transition through the simulation studies based on the PSIM software.