DEVICE OF ALTERNATE CURRENT GENERATOR FREQUENCY TRANSFORMATION Russian patent published in 2014 - IPC H02M5/38 

FIELD: electricity.

SUBSTANCE: invention refers to electrical engineering and can be applied for supply of voltage with variable frequency and amplitude to various electric loads. Device includes three synchronous multiphase generators with a common drive, three multiphase-single-phase cycloconverters with direct link, thyristor control system, three-phase control generator, frequency setter and amplitude setter, with outputs of each synchronous generator connected to power inputs of respective cycloconverter, excitation windings of all three synchronous generators connected in star pattern to outputs of cycloconverter control systems, and amplitude setter output connected to second input of control generator. Device includes adjustable direct voltage source, additional amplitude setter, additional excitation windings in rotor of each synchronous generator, additional three-phase winding in stator of each synchronous generator, with same-sign additional three-phase windings of all synchronous generators connected in series to form three branches combined in star pattern and forming three-phase output with stable voltage frequency, and additional excitation windings in rotor of each synchronous generator are combined in open delta pattern, to open ends of which adjustable direct voltage source is connected with additional amplitude setter.

EFFECT: possible power tapping for power supply to loads.

6 dwg