| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic device in which the structure of a magnetic circuit and the wound structure of coils are simple, in which the inductance is variable, and which can be produced easily at a low cost to connect with a power system in series. SOLUTION: The electromagnetic device has a magnetic core symmetrically forming a two-by-two-matrix-shaped magnetic path in a four closed magnetic path, a main flux passes a first straight line magnetic path of a cross-shaped magnetic path in the two-by-two-matrix-shaped magnetic path, AC main windings 1a, 1b are wound so as to circulate the four closed magnetic paths opposed symmetrically to each other at a cross-shaped intersection, DC control windings 2a, 2b, 2c, 2d are wound so that a control flux passes the second straight line magnetic path of the cross-shaped magnetic path in one direction to circulate two magnetic paths symmetrically, and the magnetic resistance of the common magnetic path of the main flux and the control flux is adjusted by control of the control magnetic flux. The magnetic core forming the two-by-two-matrix-shaped magnetic path is divided at the center of the second straight line magnetic path of the cross-shaped magnetic path, and the two-by-two-matrix-shaped magnetic path is divided in the manner of the magnetic circuit with a gap 7. COPYRIGHT: (C)2005,JPO&NCIPI
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