ASYNCHRONOUS MOTOR CONTROL DEVICE Russian patent published in 2011 - IPC H02P21/13 H02P27/08 

Abstract RU 2438229 C1

FIELD: electricity.

SUBSTANCE: asynchronous motor control device includes unit of drivers, independent voltage inverter the power outputs of which are connected through current sensors to stator windings of asynchronous motor. Power inputs of independent voltage inverter are connected to outputs of non-controlled rectifier the outputs of which are connected to source of three-phase variable voltage. Control inputs of inverter are connected through unit of drivers to outputs of PWM-generator. Interface unit is connected in series to input filter, the first adder, velocity PI-control, the second adder, the first current PI-control, the first and the second converters of coordinates, Kalman filter, the third adder, PI-control of flux linkage by the fourth adder, the second current PI-control, the first coordinate converter and PWM-generator. Interface unit is connected to the third adder. Kalman filter is connected to the first adder, the first, the second and the third coordinate converters. Current sensor outputs are connected to inputs of the second coordinate converter the outputs of which are connected to the third coordinate converter that is connected to the fourth and the second adder, and interface unit is connected to personal computer.

EFFECT: improving control reliability of asynchronous motor.

1 dwg

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Authors

Afanas'Ev Kirill Sergeevich

Glazyrina Tat'Jana Anatol'Evna

Glazyrin Aleksandr Savel'Evich

Kozlova Ljudmila Evgen'Evna

Timoshkin Vadim Vladimirovich

Dates

2011-12-27Published

2010-07-29Filed