| |
A Tracking Controller for a Speed Sensorless Induction Machine Drive
| [View]
[Download]
|
| Author(s) |
V. M. Leppänen; J. Luomi |
| Abstract |
A speed sensorless controller structure for tracking the rotor flux orientation of an induction motor down to zero speed and frequency is introduced. The controller is based on the fundamental-wave motor model, which is augmented with the equation of mechanical motion. A low-frequency AC test signal is superimposed on the stator current of the motor. The response in the stator voltage to this signal depends on the orientation of the signal relative to that of the rotor flux. This dependency is used to control the orientation error to zero. Derivation of the controller structure is given, and simulation results validating the approach are shown. |
| Download |
| Filename: | Unnamed file |
| Filesize: | 161.5 KB |
|
| Type |
Members Only |
| Date |
Last modified 2006-02-28 by System |
| |
 |