1. A system for determining topology in an electrical power distribution system, comprising: a data bus; a processor in communication with the data bus; and a non-transitory computer readable storage medium in communication with the data bus, the non-transitory computer readable storage medium storing information comprising: a representation of a plurality of nodes in an electric power distribution system; a representation of a plurality of topology links indicating a plurality of interconnections between the plurality of nodes; a representation of a status associated with each of a plurality of topology couplers configured to selectively enable electrical communication among at least two of the plurality of nodes via at least one of the plurality of topology links; a topology module executable on the processor and configured to assign each of the plurality of nodes to an electrical island based on a configuration of the plurality of topology links and the status of the plurality of topology couplers.