ASYNCHRONOUS ELECTRIC DRIVE CONTROL DEVICE WITH PHASE ROTOR Russian patent published in 2024 - IPC H02P27/05 

FIELD: electrical engineering.

SUBSTANCE: invention can be used in electric drives of general industrial mechanisms, for example, pumps, conveyors, fans, etc. Asynchronous electric drive control device with phase rotor, containing asynchronous electric motor with phase rotor, stator winding of which is connected through a transistor inverter to a supply multiphase AC network, phase current sensors of the transistor inverter and a controller of this current, asynchronous motor rotor angular position sensor. Current regulator output is connected to the first control input of the transistor inverter, and outputs of the rotor angular position sensor are connected to the next six control inputs. Voltage proportional to the desired value of stator current is supplied to the first control input of the current controller, and the signal from the current sensor is supplied to the second control input. At that, the asynchronous electric drive with phase rotor control device is additionally equipped with the second transistor inverter connected to the AC supply multiphase network, induction motor rotor winding is connected to output circuits of this inverter, and its control input is connected to a voltage source, the value of which is proportional to the desired voltage on the induction motor rotor winding.

EFFECT: improvement of control and energy characteristics of electric drive.

1 cl, 3 dwg