A Technique To Improve The Convergence Of FDLF For Systems With High R/X Lines

Singh, S. P.; Raju, G.; Rao, V. S. Subba

doi:10.1109/tencon.1991.712547

Cited by 1 publication

(2 citation statements)

References 10 publications

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“…Results presented in [14] shown the superior performance on the socalled BX version of the FDPF for systems with high R/X ratio lines. Another approach, regarding slack bus selection to improve the convergence, was proposed by Singh et al [15].…”

Section: Ds Power Flow Analysis -A Brief Reviewmentioning

confidence: 99%

“…e e e base base (15) Although cpu produces the same results of the impedance rotation technique [9], it brings the adjustment approach of R/X ratio for the new context of the DS network. It is important to emphasize that cpu consists of a generalization of the per unit normalization concept, in which the conventional pu is a particular case (when a zero base angle is adopted).…”

Section: Complex Per Unit Normalizationmentioning

confidence: 99%

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Fast Decoupled Power Flow to Emerging Distribution Systems via Complex pu Normalization

Tortelli

Lourenço

Garcia

et al. 2015

IEEE Trans. Power Syst.

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Abstract--This paper proposes a generalized approach of the per unit normalization, named complex per unit normalization (cpu), to improve the performance of fast decoupled power flow methods applied to emerging distribution networks. The proposed approach takes into account the changes envisaged and also already faced by distribution systems, such as high penetration of generation sources and more interconnection between feeders, while considering the typical characteristics of distribution systems, as the high R/X ratios. These characteristics impose difficulties on the performance of both backwardforward sweep and decoupled-based power flow methods. The cpu concept is centred on the use of a complex volt-ampere base, which overcomes the numerical problems raised by the high R/X ratios of distribution feeders. As a consequence, decoupled power flow methods can be efficiently applied to distribution system analysis. The performance of the proposed technique and the simplicity of adapting it to existing power flow programs are addressed in the paper. Different distribution network configurations and load conditions have been used to illustrate and evaluate the use of cpu.

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Section: Ds Power Flow Analysis -A Brief Reviewmentioning

confidence: 99%

Section: Complex Per Unit Normalizationmentioning

confidence: 99%