The logarithmic barrier function associate Newton modified method for solving the optimal power flow problem

Author(s)

Vanusa Alves de Sousa

• Document type: Master's Dissertation
• Press: São Carlos.
• Institution: Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD)
• Defense date: 2001-12-12

Examining board members

Geraldo Roberto Martins da Costa; Denis Vinicius Coury; Carlos Marcio Vieira Tahan

• Advisor: Geraldo Roberto Martins da Costa

Abstract

This work describes an approach on primal-dual logarithmic barrier for solving the optimal power flow problem (OPF). The investigation was based on the logarithmic barrier function and Karush-Kuhn-Tucker (KKT) first-order necessary conditions. The equation system, obtained from the stationary conditions of the Lagrangian function, was solved using the Newton\'s modified method. The implementation was performed using sparsity techniques. The numerical results, carried out in five systems (3, 14,30, 57 and 118 bus), demonstrate the reliability of this approach in the solution OPF problem. (AU)