Parameterization technique for the continuation power flow using the trivial and tangent predictor

• Autor(a) principal: Bonini Neto, A. [UNESP]
• Data de Publicação: 2012
• Outros Autores: Alves, D. A. [UNESP]
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1109/TDC.2012.6281446; http://hdl.handle.net/11449/73706
• topic: Continuation Method; Maximum Loading Point; Multiple Solutions; Parameterization; Power Flow; Voltage Collapse; Continuation method; Maximum loading points; Multiple solutions; Power flows; Voltage collapse; Electric load flow; Electric power transmission; Exhibitions; Jacobian matrices; Loading

This paper presents efficient geometric parameterization techniques using the tangent and the trivial predictors for the continuation power flow, developed from observation of the trajectories of the load flow solution. The parameterization technique eliminates the Jacobian matrix singularity of load flow, and therefore all the consequent problems of ill-conditioning, by the addition of the line equations which pass through the points in the plane determined by the variables loading factor and the real power generated by the slack bus, two parameters with clear physical meaning. This paper also provides an automatic step size control around the maximum loading point. Thus, the resulting method enables not only the calculation of the maximum loading point, but also the complete tracing of P-V curves of electric power systems. The technique combines robustness with ease of understanding. The results to the IEEE 300-bus system and of large real systems show the effectiveness of the proposed method. © 2012 IEEE.