  In recent years, DC and AC microgrid (MG) systems have attracted a major
attention due to various potential for integration of future technology into
conventional systems and control. The integration of such technology requires
appropriate tools for complex design, analysis and optimization. This paper
presents a mathematical low-bandwidth modeling (LBM) approach that can be used
for control development in DC and further be extended to AC MG systems. In this
work, first a simplified mathematical model of a medium voltage DC (MVDC)
shipboard MG system is presented, next, the overall system-level connection
convention is presented to display the overall mathematical coupling of the
individual sub-systems, then, a simplified example of the control development
is presented, and last, the overall system under a test scenario is implemented
in Simulink Real-time.
