Symmetrical components estimation through nonrecursive Newton-type numerical algorithm

doi:10.1109/TPWRD.2003.809609

Symmetrical components estimation through nonrecursive Newton-type numerical algorithm

2003-04-01

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DOI：10.1109/TPWRD.2003.809609

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The paper reports new software developments for symmetrical components estimation. Nonrecursive Newton-type algorithm is extended with the second stage algorithm for symmetrical components calculation from the estimated fundamental phasors of three-phase signals (arbitrary voltages or currents). The algorithm is not sensitive to power system frequency changes and to the harmonic distortion of input signals. The algorithm is tested through computer simulations and by using laboratory obtained input signals and those recorded in the real distribution network.

Keyword:

Newton-type algorithm

nonlinear estimation

numerical algorithm

symmetrical components

Symmetrical components estimation through nonrecursive Newton-type numerical algorithm

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