CONVERTER OF AC POTENTIAL INTO CONSTANT ONE WITH 9-FOLD FREQUENCY OF PULSATION Russian patent published in 2008 - IPC H02M7/08 

FIELD: electricity.

SUBSTANCE: converter of the ac potential into a constant one with 9-fold frequency of the pulsation contains a three-phase transformer (1) with the group of secondary windings (2) connected according to the scheme of the first six-phase star, and the group of the secondary windings (3) connected under the scheme of the second six-phase star, and fifteen gates (4...18). Phase conclusions and, in, with the groups of windings 3, which belong to the star of the second six-phase star, are connected by three unidirectional gates (5, 11, 16) which are switched on, accordingly, with phase leads x', y', z' groups of the windings (2), belonging to the reverse star of the first six-phase star, and phase leads x, y, z of the reverse star belonging to the second six-phase star, are connected by three unidirectional gates (13, 18, 8) which have been switched on, accordingly, with phase outputs a', b', c' of the star belonging to the first six-phase star. From the gates of the devices (12, 15, 17, 4, 7, 10) a six-valve anodic star is formed, and from the gates (14, 6, 9) a three-star cathodic star is formed, free electrodes of the gates (12, 17, 7, 4, 10, 15) are connected, accordingly, with phase leads a, b, c, x, y, z of the second six-phase star, free electrodes of gates (6, 9, 14) of three-valve stars are connected, accordingly, to the phase leads a', b', c' of the straight star belonging to the first six-phase star. All the gates of the device are included unidirectional, and the general points (19 and 20), accordingly, the six- and three-valve stars form output leads of the converter to which is connected the load (21).

EFFECT: reduction in the mass and size parameters.

3 dwg