Optimal Power Flow with Substation Reconfiguration

Anton Hinneck, Basel Morsy, David Pozo, Janusz Bialek

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Substation reconfiguration may reduce congestion and therefore reduce the cost of economic dispatch. In this paper we propose a novel method that can be applied to any substation configuration using a mixed-integer linear model. Our methodology generalizes substation reconfiguration to include both more traditional transmission switching and bus splitting. The problem is NP-hard but we show that using state-of-the-art tools we can reduce the computation time significantly. The method has been evaluated on several test cases, the IEEE 118-bus case being the largest. Optimal solutions were found within much smaller time frames than have been previously reported.

Original languageEnglish
Title of host publication2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665435970
Publication statusPublished - 28 Jun 2021
Event2021 IEEE Madrid PowerTech, PowerTech 2021 - Madrid, Spain
Duration: 28 Jun 20212 Jul 2021

Publication series

Name2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings


Conference2021 IEEE Madrid PowerTech, PowerTech 2021


  • Mixed-Integer Programming (MIP)
  • Optimal bus splitting problem (OBS)
  • Optimal Transmission Switching Problem (OTS)
  • Topology control


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