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STATE OF THE ART OF SMOOTH TORQUE CONTROLLERS
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| Author(s) |
E. Favre; J.-M. Mozzon; E. Von Siebenthal; A. Crausaz |
| Abstract |
A drawback of permanent magnet synchronous motors is to provide a non-constant output torque when driven with classical electronic drivers. For specific applications, a ripple free torque has nevertheless to be achieved and the use of a dedicated electronic driver becomes mandatory. This typically applies when a peak to peak torque ripple lower than 10% is expected, even if this level of ripple seems easily achievable with conventional technologies.
This paper trades-off the different solutions generally considered for the torque ripple control. In particular, it shows the practical limits of theoretically simple motor-electronic approaches (e.g. the combination of a square current driver with a motor having a trapezium back emf shapes) and emphasizes on the need of an efficient electronic controller. Results of several practical experiences are also presented. |
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| Filename: | Unnamed file |
| Filesize: | 729.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2016-01-25 by System |
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