Speed Sensor Fault Tolerant PMSM Machines: From Position-Sensorless to Sensorless Control

New sensorless observers (i.e., from stator currents/voltages measurements only), to be included into a simple observer-based sensorless control for the tracking of non-definitely zero speed references in nonsalient-pole surface permanent magnet synchronous machines (PMSMs), are proposed. They are o...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2019-07, Vol.55 (4), p.3946-3954
Main Authors: Verrelli, Cristiano M., Bifaretti, Stefano, Carfagna, Emilio, Lidozzi, Alessandro, Solero, Luca, Crescimbini, Fabio, Di Benedetto, Marco
Format: Article
Language:English
Subjects:
Fault tolerance
Kalman filters
Observer-based control
Observers
permanent magnet synchronous machines
Permanent magnets
Phase locked loops
Position measurement
Position sensing
position-sensorless control
Rotor speed
Rotors
Sensorless control
speed sensor fault tolerance
Stator windings
Stators
Synchronous machines
Tracking control
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Description
Summary:New sensorless observers (i.e., from stator currents/voltages measurements only), to be included into a simple observer-based sensorless control for the tracking of non-definitely zero speed references in nonsalient-pole surface permanent magnet synchronous machines (PMSMs), are proposed. They are obtained through a "minimum distance" modification from recently presented position-sensorless observers (i.e., from rotor speed and stator currents/voltages measurements only). The rotor speed estimate is here directly provided by the phase locked loop (PLL)-based third-order steady-state linear kalman filter (SSLKF) that has been previously used to mitigate the distortions on the estimated position. Experimental results illustrate the effectiveness of the proposed approach in a speed sensor fault-tolerant scenario.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2019.2908337