MANA Formulation Based Load Flow Solution for DC Distribution Networks

doi:10.1109/TCSII.2023.3238132

MANA Formulation Based Load Flow Solution for DC Distribution Networks

2023-07-01

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DOI：10.1109/TCSII.2023.3238132

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This brief presents an efficient load-flow (LF) solution method for direct current distribution networks (DC-DNs). The principles of this method are based on the modified-augmented-nodal-analysis (MANA) formulation and Newton-Raphson (NR) algorithm. The guaranteed convergence and quadratic convergence conditions are also formulated using Kantorovich's theorem. The modified IEEE 33 bus test feeder is simulated to test the proposed method and compare its performance with Laplacian Matrix based LF methods, Holomorphic Embedding LF method (HE-LFM) and classical Gauss-Seidel (GS) solution. Apart from the comparisons with these numerical methods the accuracy of the proposed method is also validated with Electromagnetic Transients (EMT) results. The proposed method offers much better convergence properties with a faster simulation speed.

Keyword:

Convergence speed

DC distribution networks

ill-conditioned networks

Laplacian method

load flow

modified augmented nodal analysis

Newton Raphson method

MANA Formulation Based Load Flow Solution for DC Distribution Networks

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