A Three-Phase Optimal Power-Flow Algorithm to Mitigate Voltage Unbalance

Author

Araujo, Leandro Ramos ; Penido, Debora Rosana Ribeiro ; Carneiro, Sandoval ; Pereira, Jose Luiz Rezende

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Juiz de Fora, Juiz de Fora, Brazil

Volume

28

Issue

4

fYear

2013

fDate

Oct. 2013

Firstpage

2394

Lastpage

2402

Abstract

This paper describes a new methodology for three-phase electrical system optimization, in which the phase unbalances are to be taken into account. A formulation for the three-phase optimal power-flow solution was developed using the primal-dual interior point method and the three-phase current injection method in rectangular coordinates. The Hessian matrix has a 6 × 6 blocked structure, where most of the elements are constant or equal to zero during the solution process. This characteristic brings computational efficiency when applied to three-phase systems.

Keywords

Hessian matrices; load flow; Hessian matrix; blocked structure; computational efficiency; phase unbalances; primal-dual interior point method; rectangular coordinates; three-phase current injection method; three-phase electrical system optimization; three-phase optimal power-flow algorithm; voltage unbalance mitigation; Computational efficiency; Load flow; Mathematical model; Optimization; Three-phase electric power; Voltage control; Current injection method; primal-dual interior point method; three-phase optimal power flow; unbalanced operation;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2013.2261095

Filename

6596521