FIELD: electricity.
SUBSTANCE: device relates to systems for automatic stabilisation of frequency of generated electric oscillations, and can be used in electrical devices. The device has a permanent magnet with saturating magnetic field in its gap and ferromagnetic discs made from magnetoviscous substance, fitted with possibility of rotation upon momentary effect of an alternating voltage source through a motor dynamo with a rotor and a stator, linked to turning shafts of the discs, whose edges are placed in the gap of the said permanent magnet. The rotor is based on a permanent magnet. The stator has a three-phase winding, outputs of which are connected to the altenating voltage source or to an electric load. One phase of the stator is connected to the input of an electronic frequency meter. The device has series connected reference generator, frequency divider, phase-sensitive rectifier, relaxation circuit, direct current amplifier, connected to a load in form of a field magnetising coil. The second input of the rectifier is connected to one of the stator phases, and an additional winding is connected into an open circuit between the output of the three-phase rectifier and load with variable parametres.
EFFECT: invention provides for stabilisation of frequency of generated oscillations when changing electric load, independence from fuel consumption.
1 dwg
