Enhanced Power Control Approach for Tie Converter Based AC-DC Micro grids

Abstract

Current AC-DC microgrid power management solutions have a number of technical shortcomings.
When it comes to controlling the voltage of interconnected microgrids, certain current control methods are
established with the primary purpose of distributing electricity among interconnected microgrids based on their
loading circumstances, whereas others do not take this into account. The current systems, on the other hand, are
unable to successfully pursue these objectives. In order to tackle these issues, an autonomous power
management strategy is proposed, which takes into account the DC microgrid's individual loading condition
before importing power from the associated AC microgrid. Controlling DC microgrid voltage with fewer
converters is possible with this method. Generators and tie-converters can be used with the proposed system
because it is plug-and-play compatible. A variety of operating scenarios have been used to evaluate the
effectiveness of the proposed control scheme. Researchers found that the proposed strategy successfully and
independently controls the DC microgrid's power shortfall while maintaining increased voltage resiliency.