Numerical simulation of the stabilisation of the steady state operation of an alternator feeding an infinite busbar by a circuit field coupled model.

Abstract

In this paper, the authors present a study of the stabilisation of the steady state operation of an alternator by means of a time stepped 2D finite element field circuit coupled model. The results of the study show that it can be very difficult to stabilise the global quantities of the alternator. Ripples of numerical origin are observed on these quantities. The studies presented in this paper are intended toexplain these difficulties and show that these ripples are due to the famous backward Euler algorithm commonly used in this kind of model.