A relaxed AC optimal power flow model based on a Taylor series

Hui Zhang, Vijay Vittal, Gerald T. Heydt, Jaime Quintero

Research output: Chapter in Book/Report/Conference proceedingConference contribution

19 Scopus citations

Abstract

The DC optimal power flow (OPF) results are potentially inaccurate since the traditional DC model only focuses on active power balance. In order to improve the model accuracy, this paper presents a relaxed ACOPF model based on a Taylor series. The proposed model considers reactive power and offnominal bus voltages as variables. Network losses are modeled through piecewise linearization and binary variables are added to prevent fictitious losses. Relaxations of the binary variables are discussed and conditions when the relaxations are exact are proved. Simulation results show that the proposed model is a better approximation for the full AC model and is computationally more efficient verses the full AC model.

Original languageEnglish (US)
Title of host publication2013 IEEE Innovative Smart Grid Technologies - Asia, ISGT Asia 2013
DOIs
StatePublished - Dec 1 2013
Event2013 IEEE Innovative Smart Grid Technologies - Asia, ISGT Asia 2013 - Bangalore, India
Duration: Nov 10 2013Nov 13 2013

Publication series

Name2013 IEEE Innovative Smart Grid Technologies - Asia, ISGT Asia 2013

Other

Other2013 IEEE Innovative Smart Grid Technologies - Asia, ISGT Asia 2013
CountryIndia
CityBangalore
Period11/10/1311/13/13

Keywords

  • AC optimal power flow
  • Taylor series
  • convexification
  • loss modeling
  • piecewise linearization
  • relaxation

ASJC Scopus subject areas

  • Computer Networks and Communications

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