ELECTRIC DRIVE BASED ON ASYNCHRONOUS MOTOR WITH PHASE ROTOR Russian patent published in 2025 - IPC H02P27/04 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering and is used to control the electric drive rotation frequency and can be used in the electrical industry. Device includes three-phase rectifying bridges connected to ends of stator windings and beginnings of rotor windings; beginnings of stator windings are connected through contactor to the mains. Between inputs of the second three-phase rectifying bridge and connection points of ends of stator windings and beginning of rotor windings there are three capacitors connected; polar outputs of three-phase rectifying bridges are connected to transistors. Bases of the transistors are connected to the output of the control system, wherein the transistors are in the closed state in the retention mode.

EFFECT: smooth control of engine speed in the specified range, retention of the engine shaft in the specified position and increase of response.

1 cl, 1 dwg