A Reconfiguration Strategy of Distribution Networks Considering Node Importance

PLoS One. 2016 Dec 19;11(12):e0168350. doi: 10.1371/journal.pone.0168350. eCollection 2016.

Abstract

Node importance degree is a vital index in distribution network reconfiguration because it reflects the robustness of the network structure by evaluating node importance. Since the traditional reconfiguration ignores this index, the reconstructed network structure may be vulnerable which would reduce the security and stability of the distribution systems. This paper presents a novel reconfiguration strategy considering the node importance. The optimization objectives are the improvement of the node importance degree and the reduction of power loss. To balance the objectives, the reconfiguration mathematical model is formulated as a compound objective function with weight coefficients. Then the quantum particle swarm algorithm is employed to address this compound objective optimization problem. The strategy can model different scenarios network reconfiguration by adjusting the weight vector based on the tendencies of the utility decision maker. Illustrative examples verify the effectiveness of the proposed strategy.

MeSH terms

  • Algorithms
  • Decision Making
  • Models, Theoretical*
  • Quantum Theory

Grants and funding

This work was supported by National Natural Science Foundation of China (61102039) and National Hi-Tech Research and Development Plan (2014AA052600). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.