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Modelling of magnetizing inductance saturation in self-excited induction generators

Lookup NU author(s): Dr Shady Gadoue, Dr Bashar Zahawi, Dr Mohammed Elgendy

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Abstract

Self-excited induction generators ( SEIG) are used in small scale generation systems such as small wind turbines and micro-hydro schemes where a grid connection is not available. In such applications, there is a strong need to model the generator as accurately as possible in order to obtain a realistic estimation of the machine behaviour and dynamics. In this paper, a generalized dynamic model of a three-phase self-excited induction generator ( SEIG) in the natural abc reference frame is presented. The developed model accounts for the significant effects of magnetic saturation by expressing the magnetizing inductance as an exponential function of the magnetizing current considering both the value of the inductance and its rate of change with the magnetizing current ( dL(m)/di(m)). The model is used to investigate the SEIG steady-state and transient behaviours at balanced, unbalanced and fault conditions.


Publication metadata

Author(s): Alfarhan A, Gadoue SM, Zahawi B, Shalaby M, Elgendy MA

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: IEEE International Conference on Environment and Electrical Engineering (EEEIC 2016)

Year of Conference: 2016

Online publication date: 01/09/2016

Acceptance date: 01/01/1900

Publisher: Institute of Electrical and Electronics Engineers

URL: http://dx.doi.org/10.1109/EEEIC.2016.7555817

DOI: 10.1109/EEEIC.2016.7555817

Library holdings: Search Newcastle University Library for this item

Series Title: Environment and Electrical Engineering (EEEIC), 2016 IEEE 16th International Conference on

ISBN: 9781509023202


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