Robust Island Partition of Active Distribution Network

Abstract

Island partition is an effective scheme in case that outage caused by extreme weather happen in the distribution system. In order to form a more reliable island, an island partition model which takes loads fluctuation into account is formulated. To be more specific, a two-stage robust optimization island partition program considering ellipsoidal uncertainty set of load forecasting error is formulated. This model satisfies operation and topology constraints when the object of it is to recover the most of load. The two-stage robust optimization problem is transformed into a mixed integer second order cone problem (MISOCP) to make it computationally tractable and uncertainty budget is supposed to change the conservatism degree of the result. Finally, the results of the samples prove the validity of the new model and method.