Inrush current computations using an optimised analytical hysteresis model

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

Purpose-The purpose of this paper is the modelling and estimation of inrush currents while energising power devices under no load conditions. An analytical representation of the nonlinear B-H curve serves for considering the hysteresis behaviour in the numerical model. Design/methodology/approach-The model is implemented into a standard finite element formulation to compute transient problems. Findings-Inrush currents behave like faults in power distribution facilities. Its prior estimation helps to distinguish between operating conditions and faults. Research limitations/implications-The magnetic cores may become extremely magnetised. At such high material saturations, the material characteristics are not measurable accurately. Hence, the results depend on the extrapolation of the B-H curves. Originality/value-The use of first-order reversal curves within the major hysteresis loops helps in a convenient way to estimate peak and shape of the inrush currents.

Originalspracheenglisch
Seiten (von - bis)1568-1576
Seitenumfang9
FachzeitschriftCOMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering
Jahrgang36
Ausgabenummer5
DOIs
PublikationsstatusVeröffentlicht - 2017

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Hysteresis
Magnetic cores
Curve
Fault
Hysteresis loops
Extrapolation
Numerical models
Hysteresis Loop
Power Distribution
Reversal
Design Methodology
Saturation
Model
Finite Element
First-order
Formulation
Modeling
Estimate

Schlagwörter

    ASJC Scopus subject areas

    • !!Computer Science Applications
    • !!Computational Theory and Mathematics
    • !!Electrical and Electronic Engineering
    • Angewandte Mathematik

    Dies zitieren

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