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Sensorless Control of Salient Pole PMSM Using a Low-Frequency Signal Injection
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| Author(s) |
ESKOLA Matti; TUUSA Heikki |
| Abstract |
This paper deals with sensorless control of permanent magnet synchronous motor. The low-frequency signal injection estimator is studied in the case of salient PMSM. If there is an error in the estimated position, the injected signal creates a torque oscillation and affects the back-emf. The oscillating back-emf can be used to track the position and speed. The saliency of the PMSM is a disturbance for the low frequency estimator. In this paper the effect of saliency is analysed in steady state and a simple method to compensate the saliency effect is proposed. The performance of the method is verified by measurements. |
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| Filename: | 0932 |
| Filesize: | 589.9 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-08 by System |
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