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A new hybrid position sensorless control method for reluctance synchronous machine drives is presented in this paper. The active-flux and arbitrary injection position estimation techniques are combined for the first time in this hybrid controller. The controller switches between estimation techniques depending on speed and load. A hysteresis region is implemented with phase-locked loop synchronisation...
The reluctance synchronous motor (RSM) is identified to be well suited for the variable-gear (VG) electric vehicle (EV) drive. It is shown in this paper, however, that the RSM drive's position-sensorless capability is limited at zero or very small current magnitudes due to a limited saliency magnitude. In this paper, a novel epoxy–resin-casted rotor with no iron ribs is proposed to increase the saliency...
Reluctance synchronous machine drives are known to be efficient, however are also known to have a poor constant power speed range. Interior permanent magnets are normally used in the reluctance synchronous machine to improve the constant power speed range. In this paper an alternative reluctance synchronous machine drive that extends the constant power speed range without using permanent magnets is...
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