In this paper, a recently designed adaptive stator flux observer (SFO), which provides estimates of rotor position and torque constant for surface mounted permanent magnet synchronous machines (PMSMs), is included in a speed sensorless control. Simulations and experimental results are carried out in order to evaluate the robustness of the whole control architecture with respect to uncertainties in the electrical parameters of the motor, as well as to the mismatch between the actual stator voltages imposed to the PMSM and the ones used for the observer, especially when low speeds are involved.
Stator Flux Observer for the Sensorless Speed Control of Synchronous Machines with Uncertain Torque Constant / Carfagna, E.; Migliazza, G.; Bernardi, F.; Verrelli, C. M.; Lorenzani, E.. - (2022), pp. 1-8. (Intervento presentato al convegno 14th Annual IEEE Energy Conversion Congress and Exposition (IEEE ECCE) / IEEE-Industry-Applications-Society (IEEE-IAS) Annual Meeting tenutosi a Detroit, MI nel OCT 09-14, 2022) [10.1109/ECCE50734.2022.9948132].
Stator Flux Observer for the Sensorless Speed Control of Synchronous Machines with Uncertain Torque Constant
Carfagna E.
;Migliazza G.;Bernardi F.;Lorenzani E.
2022
Abstract
In this paper, a recently designed adaptive stator flux observer (SFO), which provides estimates of rotor position and torque constant for surface mounted permanent magnet synchronous machines (PMSMs), is included in a speed sensorless control. Simulations and experimental results are carried out in order to evaluate the robustness of the whole control architecture with respect to uncertainties in the electrical parameters of the motor, as well as to the mismatch between the actual stator voltages imposed to the PMSM and the ones used for the observer, especially when low speeds are involved.
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