Alternative continuation method for loading margin improvement and transmission losses reduction

• Autor(a) principal: Malange, F. C V [UNESP]
• Data de Publicação: 2004
• Outros Autores: Alves, D. A. [UNESP], Silva, L. C P, Castro, C. A., Costa, G. R M
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1109/TDC.2004.1432343; http://hdl.handle.net/11449/67972
• topic: Continuation method; Loading margin; Losses reduction; Power flow; Voltage stability margin; Electric lines; Electric loads; Electric potential; Electric power systems; Electric power transmission; Reactive power; Electric losses

This paper presents an alternative methodology for loading margin improvement and total real power losses reduction by using a continuation method. In order to attain this goal, a parameterizing equation based on the total real power losses and the equations of the reactive power at the slack and generation buses are added to the conventional power flow equations. The voltages at these buses are considered as control variables and a new parameter is chosen to reduce the real power losses in the transmission lines. The results show that this procedure leads to maximum loading point increase and consequently, in static voltage stability margin improvement. Besides, this procedure also takes to a reduction in the operational costs and, simultaneously, to voltage profile improvement. Another important result of this methodology is that the resulting operating points are close to that provided by an optimal power flow program. © 2004 IEEE.