HIGH-SPEED SMALL MARINE GEN-SET Russian patent published in 2017 - IPC H02P9/02 H02P9/38 H02P9/42 H02J3/46 B63H21/16 B63H23/00 

FIELD: electricity.

SUBSTANCE: high speed ship in small generator unit comprising a turbine, a shaft which shaft is connected to a three-phase synchronous generator with an excitation winding connected to the source of direct current, the two-phase summing transformer, the inverter with direct connection, providing reactive power pass consisting of 3- x groups valve sets, to the output of which three-phase load is connected, introduced a dual three-phase rotating autotransformer, drive motor with controller and variable frequency drives. Shafts with dual phase of rotating autotransformer and the drive motor are connected together, the windings of the rotors dual phase rotating autotransformer connected to the output of a three-phase synchronous generator, and the winding stators dual phase rotating autotransformer connected to the primary windings of the three-phase summing transformer, whose secondary windings are connected in series in the three-phase sequential branches, each of which is connected into a star, and connected to a corresponding input of the three groups of valve sets a direct frequency converter.

EFFECT: providing of the voltage receiving at the output of the frequency converter high-speed generator set close to sinusoidal, without the use of filters, using a three-phase synchronous generator with a rotational speed selected in a wide range, with the ability to obtain an output voltage having a predetermined frequency ranging from 1 Hz up to half of the synchronous generator voltage frequency.

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