| 摘要 |
<p>A method and system for control of an AC induction motor for sensorless field oriented control, comprising a stator, a rotor, at least two stator windings and at least two rotor windings. The control system comprises first and second control signals, from which output voltages are calculated and fed to the motor for the operation and control of the motor, wherein the first control signal essentially controls the torque of the motor and the second control signal essentially controls the magnetizing current or flu of the motor, for control in four quadrants. A compensation of the control system is provided in an area close to the electrical frequency zero, where the system has an instability, by adding a compensation value to the electrical control frequency calculated by the control system.</p> |
