OPF With SVC and UPFC modeling for longitudinal systems

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

Research output: Contribution to journalArticlepeer-review

35 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 languageAmerican English
Pages (from-to)1742-1753
Number of pages12
JournalIEEE Transactions on Power Systems
Issue number4
StatePublished - 1 Nov 2004
Externally publishedYes


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

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