SciELO - Scientific Electronic Library Online

vol.17 issue3Estudo comparativo de ferramentas modernas de análise aplicadas à qualidade da energia elétricaAcionamento do motor de indução bifásico simétrico empregando modulação vetorial author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Sba: Controle & Automação Sociedade Brasileira de Automatica

Print version ISSN 0103-1759


GARBELINI, E. et al. Continuation power flow using geometric parameterization based on physical parameters. Sba Controle & Automação [online]. 2006, vol.17, n.3, pp.342-355. ISSN 0103-1759.

The conventional Newton's method has been considered inadequate to obtain the maximum loading point of power systems due to the Jacobian matrix singularity. Continuation methods are efficient tools for solving this kind of problem, and different parameterizations are used to avoid the matrix singularity. This paper presents a new geometric parameterization scheme that allows the complete tracing of the PV curves without ill-conditioning problems. The proposed technique associates the robustness to the simplicity and easy understanding. The Jacobian matrix singularity is overcome by the addition of a line equation, which passes through a point in the plane determined by the real power losses and loading factor variables, two parameters with clear physical meaning. The application of this new technique to the IEEE systems shows that the characteristics of the conventional Newton's method are improved.

Keywords : Continuation Methods; Voltage Collapse; Load Flow; Multiple Solutions; Maximum Loading Point.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License