Determination of the optimal switching frequency for distribution system reconfiguration

Zhechao Li, Saeed Jazebi, Francisco De León

Research output: Contribution to journalArticlepeer-review


This paper shows that there is great potential for saving money when reconfiguring distribution systems at an optimal frequency. Studies are conducted on hourly, daily, weekly,monthly, and seasonal reconfiguration plans, based on the 8760 hourly loads of a year. Switches that actively participate in the reconfiguration process are first identified. These sectionalizers are substituted by smart (remotely controlled) switches. According to the results, two economic indices: Total savings and return on investment are used to determine the optimal switching frequency. Numerical simulations are conducted on three distribution systems including one with 119 buses that is commonly used as a benchmark for reconfiguration of large-scale distribution systems.The results reveal that there exist large potential gains on frequent switching reconfiguration. Therefore, detailed studies must be carried out to determine the benefits of the dynamic reconfiguration for particular distribution systems.

Original languageEnglish (US)
Article number7523409
Pages (from-to)2060-2069
Number of pages10
JournalIEEE Transactions on Power Delivery
Issue number4
StatePublished - Aug 2017


  • Distribution system reconfiguration
  • Optimal power flow
  • Power loss
  • Switching frequency
  • Voltage stability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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