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The goal of this paper is to investigate the influence of the rotor geometry and the contribution of a small amount of PM in the fundamental-frequency-based electromechanical position estimation of synchronous reluctance motors. The analysis is carried out by means of the sensitivity analysis, which allows to consider the effects of both parameter mismatches and measurement errors on the position...
The paper deals with a sensorless control of a permanent magnet synchronous motor drive for a hybrid electric catamaran. A surface-mounted permanent magnet motor has been chosen and a distinctive sensorless control of this machine is deeply described. Control performance is validated by simulation and experimental results. Start-up mode, reversal of speed and synchronization lost occurrence will be...
The paper presents a detailed sensitivity analysis comparison between two existing low-cost sensorless solutions for induction motor drives. The first solution is a V-type approach, in which the inverter voltage references are calculated from the machine equations instead of obtained as the output of PI current regulators. The scheme is obtained from a standard field oriented control drive by successive...
In the last decades, several schemes have been proposed for speed-sensorless control of induction motor (IM) drives. Promising approaches are closed-loop observers, as Model reference adaptive systems (MRAS) and Kalman filters. Recently, open-loop estimators have aroused lively interest because of their simplicity and low-cost profile. As known, open-loop algorithms use only motor equations to derive...
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