Sequential Service Restoration for Unbalanced Distribution Systems and Microgrids

  • Bo Chen
  • , Chen Chen
  • , Jianhui Wang
  • , Karen L. Butler-Purry

Research output: Contribution to journalArticlepeer-review

307 Scopus citations

Abstract

The resilience and reliability of modern power systems are threatened by increasingly severe weather events and cyber-physical security events. An effective restoration methodology is desired to optimally integrate emerging smart grid technologies and pave the way for developing self-healing smart grids. In this paper, a sequential service restoration (SSR) framework is proposed to generate restoration solutions for distribution systems and microgrids in the event of large-scale power outages. The restoration solution contains a sequence of control actions that properly coordinate switches, distributed generators, and switchable loads to form multiple isolated microgrids. The SSR can be applied for three-phase unbalanced distribution systems and microgrids and can adapt to various operation conditions. Mathematical models are introduced for three-phase unbalanced power flow, voltage regulators, transformers, and loads. The SSR problem is formulated as a mixed-integer linear programming model, and its effectiveness is evaluated via the modified IEEE 123 node test feeder.

Original languageEnglish
Pages (from-to)1507-1520
Number of pages14
JournalIEEE Transactions on Power Systems
Volume33
Issue number2
DOIs
StatePublished - Mar 2018
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Distributed generator
  • distribution system
  • microgrid
  • mixed-integer linear programming (MILP)
  • restoration sequence
  • self-healing
  • service restoration

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