Optimization-based islanding of power networks using piecewise linear AC power flow

Paul A. Trodden, Waqquas Ahmed Bukhsh, Andreas Grothey, Ken I.M. McKinnon

Research output: Contribution to journalArticlepeer-review

131 Citations (Scopus)
86 Downloads (Pure)


In this paper, a flexible optimization-based framework for intentional islanding is presented. The decision is made of which transmission lines to switch in order to split the network while minimizing disruption, the amount of load shed, or grouping coherent generators. The approach uses a piecewise linear model of AC power flow, which allows the voltage and reactive power to be considered directly when designing the islands. Demonstrations on standard test networks show that solution of the problem provides islands that are balanced in real and reactive power, satisfy AC power flow laws, and have a healthy voltage profile.
Original languageEnglish
Pages (from-to)1212-1220
Number of pages9
JournalIEEE Transactions on Power Systems
Issue number3
Early online date18 Dec 2013
Publication statusPublished - May 2014


  • controlled islanding
  • integer programming
  • piecewise linearization
  • power system modeling


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