A Holistic Framework for Parameter Coordination of Interconnected Microgrids against Disasters

TL;DR

This paper introduces a comprehensive control framework using sum of squares programming to enhance the stability of interconnected microgrids against natural disasters, ensuring resilient power system operation.

Contribution

It presents a novel holistic parameter coordination framework that guarantees asymptotic stability of microgrid interconnections post-disaster, based on recent control theory advances.

Findings

Framework successfully stabilizes microgrid interconnections after disturbances

Stability assessment algorithm effectively guides parameter tuning

Potential for extension to various hierarchical control schemes

Abstract

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.