Power Flow Control in Hybrid Microgrids

Abstract

Power management in a hybrid structure is proposed in this paper. A DC microgrid and an AC grid are in this hybrid structure. Due to the technology advancement, the use of a DC micro-grid is increasing. The demand for a DC microgrid is growing as the number of micro sources grows. The total system's efficiency and reliability are improved by employing a hybrid structure. A back to back (B2B) converter is used to connect the DC microgrid and the AC grid. The suggested design allows the DC microgrid to function alone or in conjunction with the AC grid. The power management technique employs several ac-dc-ac conversions. A novel intelligent controller is designed to control the power flow amongst different sources distributed throughout the two types of sub grids, enabling them to share the load more effectively. Overall hybrid grid performance and individual sub grid performance is verified with Matlab simulations.