田形磁心による可変インダクタの主巻線構成に関する一考察(パワーマグネティックス)

概要

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An EIE core can be used as a variable inductor with a simple structure and good controllability. It is suitable for larger-capacity machines since it is with a laminated iron core. In addition, it has no gaps for harmonic current reduction. Therefore, it is expected that the EIE core variable inductor will be used as an automatic voltage regulator (AVR) for electric power systems. However, some aspects of the core operation have not been clarified. One of them is the main winding configuration. The EIE core has two main windings, which are wound around the top and bottom center-legs and connected so that the fluxes generated by the winding currents are in opposite directions. On the other hand, if the main windings are connected so that the fluxes are not in opposite directions, the control characteristic becomes worse, although the core structure remains the same. In this paper, the influence of the main winding configuration is investigated by using reluctance network analysis (RNA) and the finite element method (FEM).
社団法人日本磁気学会の論文
2007-05-01