Network Simplex Method Applied to AC Load-Flow Calculation

Barras, J.; Alec, S.; Pasche, C.; Chamorel, P. A.; Germond, A.; Werra, Dominique de

doi:10.1109/mper.1987.5527556

Cited by 2 publications

(2 citation statements)

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“…Power routing through an electric network was presented in [34], with the proposed solution based on successive shortest path and scaling push‐relabel algorithms. A recent review of electric networks and algebraic graph theory models and specific properties was introduced in [35], and a network simplex method application for AC power flow problems was investigated in [36], which has a long execution time, compared with Newton–Raphson based methods.…”

Section: Introductionmentioning

confidence: 99%

Sequential network‐flow based power‐flow method for hybrid power systems

Mohamed

El-Shatshat

2021

IET Generation Trans & Dist

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This paper presents a sequential network-flow graph-based method for a steady-state power flow solution in hybrid multi-terminal power systems. The proposed method is a unique and novel one, which differs from other established methods that involve the use of modified versions of classical power flow methods. The proposed method formulates a power flow problem as a maximum network-flow problem and solves it using a pushrelabel max-flow algorithm. The solution procedure solves AC and DC parts sequentially, while accounting for voltage source converter losses using a generalised converter model. The proposed flow-Augmenting method solves the power flow problem using matrix vector multiplication in its most abstract form, and it is independent of system parameters and network configuration. The proposed formulation is computationally efficient, as it is based on matrix vector multiplication, and is scalable, because the formulation works as a graph-based method, which, inherently, allows for parallel computation for added computational speed. Further, unlike previously reported methods, the proposed method does not rely on Jacobian matrix formulation or any matrix inversion. This proves to be a strong advantage for the proposed method, as a significant reduction in computational time is observed, as a result. The proposed method is validated on 5-bus hybrid system and CIGRE B4 DC system.

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Section: Introductionmentioning

confidence: 99%

Sequential network‐flow based power‐flow method for hybrid power systems

Mohamed

El-Shatshat

2021

IET Generation Trans & Dist

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“…Problems regarding steady state and transient analysis of power systems mainly require iterative solutions of large sets of equations representing system components [1]. The load flow calculation is one of the most basic problems in power engineering [2][3][4][5][6][7][8]. The repetitive solution of a large set of linear equations in the load flow problem is one of the most time consuming parts of power system simulations.…”

Section: Introductionmentioning

confidence: 99%

A Fuzzy Based Efficient Load Flow Analysis

Chakravorty¹,

Chakravorty²,

Ghosh³

2009

IJCEE

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Abstract-Load flow calculation is one of the most basic problems in power engineering. The repetitive solution of a large set of linear equations in load flow problem is one of the most time consuming parts of power systems simulations. Load flows are calculated using the traditional method such as Gauss Seidel or Newton Raphson methods. Gauss Seidel algorithm is an iterative numerical procedure and in this method the number of iteration depends on the acceleration factor (α). Here we attempt to choose the acceleration factor (α) using fuzzy logic technique so as to minimize the number of iteration and get the result in minimum required time. Comparison of the method with traditional method has been shown in the paper which proves the validity of the result. The paper shows as to how the application of Fuzzy technique in choosing an appropriate acceleration factor reduces the number of iteration and helps in obtaing the solution at a faster rate with optimum number of iterationThe simulation in carried out in MATLAB environment. Index Terms-Load flow, Fuzzy logic technique. Gauss Seidel Method

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Network Simplex Method Applied to AC Load-Flow Calculation

Cited by 2 publications

References 1 publication

Sequential network‐flow based power‐flow method for hybrid power systems

Sequential network‐flow based power‐flow method for hybrid power systems

A Fuzzy Based Efficient Load Flow Analysis

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