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This study presents a performance analysis of a neural observer applied to speed and radial position controls of an induction-type bearingless motor with divided windings. The speed and radial control actions are carried out in conjunction with current control in the windings. The neural flux observer aims at compensating possible parametric variations of the machine caused by agents such as temperature...
Similar to other sensorless control methods based on signal injection, the resulting signal of the transient voltage excitation is influenced, for example, by the slotting saliency, the anisotropy saliency, as well as by the saturation based saliency and its load and flux dependencies. A separation algorithm to extract the slotting saliency and saturation saliency from the resulting signal is presented...
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