Volume 23, Issue 3 (JIAEEE Vol.23 No.3 2026)                   Journal of Iranian Association of Electrical and Electronics Engineers 2026, 23(3): 0-0 | Back to browse issues page

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Maleki D, Halvaei Niasar A. Model-Free Predictive Current Control for Modular Drive of a Non-Sinusoidal, Double-Winding, Asymmetric Six-Phase Permanent Magnet Synchronous Motor using an Extended State Observer. Journal of Iranian Association of Electrical and Electronics Engineers 2026; 23 (3)
URL: http://jiaeee.com/article-1-1791-en.html
Model-Free Predictive Current Control for Modular Drive of a Non-Sinusoidal, Double-Winding, Asymmetric Six-Phase Permanent Magnet Synchronous Motor using an Extended State Observer
Davood Maleki , Abolfazl Halvaei Niasar *
Electrical and Computer Engineering, University of Kashan
Abstract:   (22 Views)
Multi-phase permanent magnet synchronous motors are considered to increase the reliability of the propulsion system in some high-power special applications. This paper presents a model-free predictive current control (MFPCC) method based on ultra-local model for an asymmetric six-phase PMSM, which has high reliability and is robust to model uncertainties and disturbances. Each phase of employed six-phase PMSM has two windings and each winding has an open-end connection, in which the drive structure is modular and there is no electrical connection between the phases. Due to the modular structure, there are limitations in the modeling and control of the motor, and conventional methods in the dq reference frames cannot be used. Also, due to the non-sinusoidal back-EMF voltages of the motors’ phases, the current shaping method reduces the torque ripple caused by the harmonics of back-EMF voltages in the six-axis stationary reference frame. To make the control method robust to changes in motor model parameters and reduce sensitivity to current controllers, an extended state observer (ESO) based on an ultra-local model is used to estimate current and disturbances. The superiority of the proposed control method over conventional control methods based on hysteresis, PI and PR (proportional-resonant) current regulators is proven by simulation in Simulink software, and laboratory implementation results are presented to validate the proposed theories.
Keywords: Asymmetric six-phase PMSM with double winding, model-free predictive control, extended state observer, torque ripple, current shaping method
     
Type of Article: Research | Subject: Power
Received: 2025/01/22 | Accepted: 2026/05/16
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