Sensorless Control of BLDC Motor Based on ESO with an Active Harmonic Compensator.

Autor: Zeghlache, Ayyoub, Mekki, Hemza, Djerioui, Ali, Benkhoris, Mohamed Fouad
Zdroj: Journal of Control, Automation & Electrical Systems; Oct2024, Vol. 35 Issue 5, p960-969, 10p
Abstrakt: This paper presents a simple and effective sensorless control strategy based on extended state observers (ESOs) to enhance the performance of brushless DC (BLDC) motors. First, an ESO is used to estimate the back-electromotive force (EMF) without additional filters. Second, another ESO is incorporated into the quadrature phase-locked loop (QPLL) to enable the implementation of an active harmonic compensator to reduce noise harmonics induced by the estimated back-EMF. By using the P-Q theory, the proposed compensator calculates a compensation signal to be directly injected into the QPLL based on ESO. The results analysis shows that the proposed strategy significantly reduces torque ripples and speed/position estimation errors under a wide range of speeds. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index
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