OPF With SVC and UPFC modeling for longitudinal systems

Rodrigo Palma-Behnke*, Luis S. Vargas, Juan R. Pérez, Jaime D. Núnez, Rigoberto A. Torres

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Scopus citations


This paper presents a formulation of the Optimal Power Flow problem with an explicit modeling of Static Var Compensator (SVC) and Unified Power Flow Controller (UPFC) devices. The optimization problem is solved by using Sequential Quadratic Programming, where two convergence criteria and four different methods are studied to solve the quadratic subproblems. The proposed model is integrated in an object-oriented based decision support platform for competitive power markets. Validation of the method and practical applications to real longitudinal systems are discussed, where FACTS location and a UPFC-based interconnection are described. Results show the impact of SVC and UPFC FACTS technologies in the physical and economic behavior of a real system.

Original languageEnglish
Pages (from-to)1742-1753
Number of pages12
JournalIEEE Transactions on Power Systems
Issue number4
StatePublished - Nov 2004
Externally publishedYes

Bibliographical note

Funding Information:
Manucript received May 17, 2004. This paper was supported in part by grants Fondecyt #1000940 and #1020801, by the Facultad de Ciencias Físicas y Matemáticas of Universidad de Chile, and by the University of Dortmund and DAAD. Paper no. TPWRS-00334-2002.


  • Optimal power flow (OPF)
  • Quadratic programing (QP)
  • Static var compensator (SVC)
  • Unified power flow controller (UPFC)


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