  This paper proposes a holistic framework for parameter coordination of a
power electronic-interfaced microgrid interconnection against natural
disasters. The paper identifies a transient stability issue in a microgrid
interconnection. Based on recent advances in control theory, we design a
framework that can systematically coordinate system parameters, such that
post-disaster equilibrium points of microgrid interconnections are
asymptotically stable. The core of the framework is a stability assessment
algorithm using sum of squares programming. The efficacy of the proposed
framework is tested in a four-microgrid interconnection. The proposed framework
has potential to extend to microgrid interconnections with a wide range of
hierarchical control schemes.
