| 摘要 |
The purpose of the invention is to obtain a highly efficient power conversion device by applying a reactor device to a filter circuit, said reactor device being excellent in housing property, enabling a symmetry between three-phase coils to be improved, and being excellent in low-loss characteristics and the stability of operation. A reactor (13) in a filter circuit comprises: a set of upper and lower yoke iron cores (1a, 1b) formed by winding a thin band-shaped magnetic material in a toroidal shape; magnetic leg iron cores (3) being a columnar body formed of the thin band-shaped magnetic material, disposed on the circumference at symmetrical positions with respect to the center of the yoke iron cores, connecting the set of upper and lower yoke iron cores with each other, having coils disposed thereon, and counted equal to the number of phases; and zero-phase magnetic leg iron cores (4) being a rectangular solid formed by stacking a plurality of thin band-shaped magnetic material sheets from the center of the yoke iron cores toward the circumference thereof, disposed on the circumference at symmetrical positions between the magnetic leg iron cores with respect to the center of the yoke iron cores, connecting the set of upper and lower yoke iron cores with each other, having no coils disposed thereon, and counted equal to the number of phases. |
