Universidad de Costa Rica

Determination of sectionalising strategies for parallel power system restoration: A spectral clustering-based methodology

Ing. Jairo Quirós Tortós, PhD.
Jairo Quirós-Tortós and Peter Wall and Lei Ding and Vladimir Terzija
Electric Power Systems Research


Parallel power system restoration (PPSR) accelerates the restoration of a system in complete blackout by restoring isolated sections (islands) of the network in parallel. These islands are defined during the preparation stage of PPSR using a sectionalising strategy that considers system information collected after the blackout and must satisfy multiple PPSR constraints. This paper introduces a methodology based on spectral clustering that, in contrast to existing approaches, uses the physical and inherent properties of the network to determine a suitable solution. An undirected edge-weighted graph is initially constructed based on the electrical distance between buses, and constraints related to transmission line availability and cranking groups are included by modifying the edge-weights of the graph and using a subspace projection. This graph is then used to define islands that have …

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