Power Grid Partition Method for Black Start Based On Complex Network Theory

The paper proposes one power grid partition method for black start based on complex network theory. The method is composed of splitting algorithm and agglomerative algorithm. The former algorithm divided grid to some temp zone according to the number of black-start unit, which determines the basic structure of the partition and reduces the number of iterations in agglomerative process. The latter algorithm redefines the line weight and weighted modularity based on flow distribution and network topology, then merges neighbouring temp zone to maximum weighted modularity. The method can reflect the close degree of the partition, accurately assess the partition quality and determine the optimal number of partitions. The simulation results on IEEE 39-bus test system illustrate the validity of this methodology.