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A PROCEDURE TO ESTIMATE THE ABSOLUTE POSITION OF THE ROTOR FLUX OF A PERMANENT MAGNET SYNCHRONOUS MACHINE
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| Author(s) |
Klaus Backhaus; Harry Reinold; Thomas Kalker |
| Abstract |
For applying field oriented control to a permanent magnet synchronous machine (PSM) it is necessary to know the rotor flux position. A method is presented, which makes it possible to estimate the location of the rotor flux of a PSM to initialize an incremental encoder without moving the rotor more than a few increments and to enable a controller to start field oriented current control after system start. The procedure is also suitable if the rotor of the machine is braked mechanically. A realization with a 1kW servo system is presented, which shows the accuracy of estimated rotor position better than 1.5% of electrical angle. |
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| Filename: | Unnamed file |
| Filesize: | 2.576 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-07-22 by System |
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