| 摘要 |
Provided is a high-efficient power conversion apparatus in which a reactor device having an excellent housing property, improved symmetry between three-phase coils, excellent operational stability, and an excellent low loss property is applied to a filter circuit. A reactor (13) of the filter circuit includes a vertical pair of yoke iron cores (1a,1b), in each of which a thin strip of magnetic material is rolled in a toroidal manner, magnetic leg iron cores (3) having respective phases, each of the magnetic leg iron cores being a pillar formed of thin-strip shaped magnetic material, being provided on a symmetrical position on a circumference with respect to a center of the yoke iron cores, connecting the vertical pair of the yoke iron cores, and providing a coil, and magnetic leg iron cores (4) for zero-phase impedance having the respective phases, each of the magnetic leg iron cores for zero-phase impedance having a rectangular parallelepiped shape in which a plurality of thin strips made of magnetic material are laminated in a direction toward a periphery from the center of the yoke iron cores, being provided between the magnetic leg iron cores on a corresponding position on the circumference with respect to the center of the yoke iron core, connecting the vertical pair of the yoke iron cores, and providing no coil. |
