A Variable Speed Control of Permanent Magnet Synchronous Motor Without Current Sensors

Younes Azzoug (1, 2) , Mohamed Sahraoui (2) , Remus Pusca (1) , Tarek Ameid (1) , Raphael Romary (1) , Antonio J Marques Cardoso (3)

1 LSEE - Laboratoire Systèmes Electrotechniques et Environnement
2 LGEB - Laboratoire de Génie Electrique [Univ. Biskra]
3 UBI - University of Beira Interior [Portugal]

This paper introduces a simple and low-cost direct vector control method without current sensors for Permanent Magnet Synchronous Motor (PMSM) drives, using only a single estimator and the measured dc-link voltage, as well as the measured rotor speed for currents reconstruction. The proposed method is based on a new modification of the adaptive state observer to estimate the line currents. A theoretical concept is developed, the modified adaptive state observer is presented. Simulations tests are performed to prove the ability of the proposed scheme to reconstruct stator currents and reproduce the performances of a basic and traditional vector control PMSM drive.

Keywords: Permanent magnet synchronous motor; current sensorless; adaptive state observer; vector control

Domains: Engineering Sciences [physics]; Computer Science [cs]

Younes Azzoug, Mohamed Sahraoui, Remus Pusca, Tarek Ameid, Raphael Romary, et al.. A Variable Speed Control of Permanent Magnet Synchronous Motor Without Current Sensors. 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), Jun 2020, Delft (on line), Netherlands. pp.1523-1528, ⟨10.1109/ISIE45063.2020.9152572⟩. ⟨hal-03276680⟩