Systems and methods for speed regulation of induction motors
AssigneeKing Fahd University of Petroleum and Minerals
InventorSalim IBRIR
Life of this patent
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Abstract
A system for speed regulation of an induction motor including an induction motor configured to be driven by a 3-phase alternating voltage (AC) signal. The system further includes an encoder configured to measure a shaft speed of the induction motor. Further, the system includes a variable frequency drive (VFD) device configured to generate the 3-phase AC signal to drive the induction motor. The system also includes a controller configured to generate a control voltage signal based on the measured shaft speed of the induction motor and a reference speed, the control voltage signal being input to the VFD device to control a frequency of the 3-phase AC signal.
Claims20
A system, comprising:
- an induction motor configured to be driven by a 3-phase alternating voltage (AC) signal;
- an encoder configured to measure a shaft speed of the induction motor;
- a variable frequency drive (VFD) device configured to generate the 3-phase AC signal to drive the induction motor;
- and
- a controller configured to generate a control voltage signal based on the measured shaft speed of the induction motor and a reference speed, the control voltage signal being input to the VFD device to control a frequency of the 3-phase AC signal.
A method for a speed regulation of an induction motor of a system, the method comprising:
- measuring, by an encoder of the system, a shaft speed of the induction motor;
- generating, by a controller of the system, a control voltage signal based on the measured shaft speed of the induction motor and a reference speed;
- and
- generating, by a variable frequency drive (VFD) device of the system, a 3-phase alternating voltage (AC) signal to drive the induction motor, a frequency of the 3-phase AC signal being regulated based on the control voltage signal being input to the VFD device.
Dependencies are inferred from the claim text.