Sparsity-leveraging reconfiguration of smart distribution systems

Emiliano Dall'Anese, Georgios B Giannakis

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A system reconfiguration problem is considered for three-phase power distribution networks featuring distributed generation. In lieu of binary line selection variables, the notion of group sparsity is advocated to re-formulate the nonconvex distribution system reconfiguration (DSR) problem into a convex one. It is shown that the line selection task boils down to a shrinkage and thresholding operation on the line currents. Further, numerical tests illustrate the ability of the proposed scheme to identify meshed, weakly meshed, or even radial configurations by adjusting a sparsity-tuning parameter in the DSR cost. Constraints on the voltages are investigated and incorporated in the novel DSR problem to facilitate voltage regulation.

Original languageEnglish (US)
Article number6742636
Pages (from-to)1417-1426
Number of pages10
JournalIEEE Transactions on Power Delivery
Volume29
Issue number3
DOIs
StatePublished - Jun 2014

Keywords

  • Convex programming
  • distribution networks
  • sparsity
  • system reconfiguration

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