Basic Characteristics of Three-phase Variable Inductor

A variable inductor consists of magnetic cores and primary and secondary windings. It can regulate the effective inductance of the secondary winding by dc excitation from the primary winding. Variable inductors are expected to be applied to reactive power compensation in electric power systems, beca...

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Bibliographic Details
Published in:Journal of the Magnetics Society of Japan 2008/05/01, Vol.32(3), pp.415-418
Main Authors: Nakamura, K., Hisada, S., Ohinata, T., Arimatsu, K., Sato, Y., Ichinokura, O.
Format: Article
Language:English
Subjects:
finite element method (FEM)
reluctance network analysis (RNA)
three-phase variable inductor
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Summary:A variable inductor consists of magnetic cores and primary and secondary windings. It can regulate the effective inductance of the secondary winding by dc excitation from the primary winding. Variable inductors are expected to be applied to reactive power compensation in electric power systems, because they have a simple robust structure that is extremely reliable. This paper proposes a novel three-phase variable inductor to reduce size and weight. First, the operating principles of the proposed variable inductor are explained. Next, basic characteristics of the proposed variable inductor we calculated by reluctance network analysis (RNA) and the finite element method (FEM) are presented, which we compare with those of a conventional EIE-core variable inductor.
ISSN:1882-2924
1882-2932
DOI:10.3379/msjmag.32.415