Enhanced Power Control Approach for Tie Converter Based AC- DC Microgrids

Abstract

There are a number of technical flaws in the current AC-DC microgrid power management
systems. Controlling the voltages of linked microgrids depending on their loading circumstances
is a key focus of certain control systems while others are more concerned with regulating the
currents of interconnected microgrids. On the other hand, current systems are unable to achieve
these objectives. To tackle these issues, an autonomous power management strategy is proposed
that evaluates the DC microgrid's individual loading condition before importing power from the
associated AC microgrid. DC microgrid voltage may be controlled using this method while using
fewer converters. The suggested system is completely self-contained while yet allowing generators
and tie-converters to be easily installed and removed. Several operational situations have shown
the effectiveness of the proposed control method. The results reveal that the proposed approach
is capable of efficiently and autonomously regulating the DC microgrid's power shortfall while
maintaining increased voltage resilience.