Patent ID: 8766474

Claim:
A method for controlling a microgrid, comprising: embedding a plurality of reconfigurable AC interfaces each with interface nodes in the microgrid, the microgrid comprising a load and a plurality of power sources in electrical communication with said interface nodes, said reconfigurable AC interfaces comprising at least a first reconfigurable AC interface of a first distributed energy resource system and a second reconfigurable AC interface of a second distributed energy resource system, and wherein said reconfigurable AC interfaces are configured to transfer power from at least one of said power sources to said load; synchronizing an AC output of the first reconfigurable AC interface of said first distributed energy resource system with the second reconfigurable AC interface of said second distributed energy resource system; monitoring a voltage and current of at least one of said interface nodes of said first reconfigurable AC interface and said second reconfigurable AC interface; and switching said one of said first reconfigurable AC interface and said second reconfigurable AC interface to transfer power between said first distributed energy resource and said second distributed energy resource systems to provide an uninterruptable supply of power to said load based on said monitoring of said voltage and said current.