Resilient distributed generation dispatch in multi-microgrid systems

摘要

The concept of microgrid (MG) has been one of the recent developments in power systems and an extension of this concept is the collaboration of multiple microgrids or commonly called as Multi-Microgrid Systems (MMGS). The idea of MMGS is to improve the reliability of power systems by the cooperation of microgrids. This paper presents a fully distributed hierarchical control of MMGS composed of two control levels - MMG Level and MG level. An improved model of the consensus- based distributed Optimal Power Flow model is also presented by integrating resilience to communication failure. The model is composed of a primary control that seeks the least cost operating conditions using the estimates of missing information, and a secondary control that ensures energy balance in the system. The proposed model was tested in various experiments to show that energy balance was achieved even at the presence of communication failures in the system.