CONTROLLED ELECTRIC DRIVE BASED ON ASYNCHRONOUS MOTOR WITH PHASE ROTOR Russian patent published in 2025 - IPC H02P3/24 B66C13/22 

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. Controlled electric drive based on asynchronous motor (1) with phase-wound rotor comprises three-phase rectifying bridge (5) to which ends of stator windings (2) and beginning of rotor windings (3) are connected. Polar outputs of three-phase rectifying bridge (5) are connected to transistor (6) the base of which is connected to output of control system (7). Beginnings of stator windings (2) are connected to the mains through contactor. Retention mode is realized with a closed transistor.

EFFECT: smooth adjustment of engine speed in specified range and retention of engine shaft in specified position.

1 cl, 1 dwg