Position and velocity sensorless control for synchronous reluctance motor at low speeds and under loaded conditions using high-frequency extended EMF observer and heterodyne detection

Abstract

Recently, synchronous reluctance motors (SynRMs) have attracted study because of their favorable properties, including limited thermal expansion of the shaft due to low heat generation by the rotor, the ability to drive at high velocity, a low degree of torque ripple and an absence of demagnetization problems. Sensorless control of SynRMs is now desired… (More)

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9 Figures and Tables