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Low Speed Sensorless Current Control for PMSM with Search-Based Observer (SBO)
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| Author(s) |
Kris SCICLUNA |
| Abstract |
This paper presents sensorless current control of a PMSM using a Search-Based Observer (SBO) employing HF injection. A continuous pulsating scheme is employed and the variation of the HF current amplitudes due to magnetic saliency is discussed for different current/speed operating points. The internal processes of the SBO are outlined with a PLL-based scheme to select a suitable Look-Up Table depending on the instantaneous q-axis current and rotor speed operating point. Sensorless current control results are shown for constant speed - variable load and also variable speed - constant full load operation. |
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| Filename: | 0191-epe2020-full-16142582.pdf |
| Filesize: | 1.394 MB |
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| Type |
Members Only |
| Date |
Last modified 2021-01-18 by System |
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