平面磁路形パラメトリック変圧器の磁路形状と動作点の軌跡

概要

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We previously proposed a planar parametric transformer using a laminated Si-Fe core. In thatstudy, it was noted that there was a relationship between the shape of the magnetic path and the trajectoryof the operating point. In this paper, we report on the following: (1) the trajectory of the operating point inthe transformer moves parallel to the q'-axis in the a'-q' plane for a shape of the magnetic path, indicatingthat parametric oscillations are stable. (2) the trajectory of the operating point approaches the areawhere the parametric oscillations stops, because approximated coefficients changes with the shape of themagnetic path. (3) the trajectory of the operating point is affected by the approximate coefficients of firstorderand fifth-order polynomials for the magnetic flux of the magnetic saturation curve. These states of atransformer were analyzed using MATLAB.