Control of paralleled PEBBs to facilitate the efficient operation of microgrid

Power converters are an important component of microgrids. They help interconnect renewable sources and energy storage systems in a microgrid. In addition, power converters can provide ancillary services to improve power quality within the microgrid and facilitate interconnection with the electrical power system. The size and the number of the power converters required will depend on the fluctuating power flow within the microgrid. Modular power electronics building blocks (PEBBs) can be paralleled and operated in a load sharing mode to facilitate the best use of power converter assets within the microgrid. This paper presents a scheme to distribute the power among paralleled PEBBs to optimize the system efficiency.