Improving microgrid performance by cooperative control of distributed energy sources

This paper proposes a simple and effective approach to control the distributed energy resources (DERs) in a low voltage microgrid so as to increase energy efficiency and hosting capacity of the microgrid itself, with the only requirement of narrowband communication among distributed loads and generators. More specifically, the control aims at taking full advantage of distributed renewable sources and energy storage units, while optimizing energy efficiency and voltage stability. The resulting distributed control architecture is scalable, ensures prompt response to power transients, and provides proper power sharing even if some DERs saturate their power capacity.