Fault-Tolerant Control and Torque Ripple Reduction in Modular Drive of a Non-Sinusoidal Six-Phase Double Windings Permanent Magnet Synchronous Motor with Four-star connections
1
Department of Power,, Faculty of Electrical & Computer Engineering, University of Kashan
2
Department of Electrical and Computer Engineering
10.22034/tjee.2026.68243.5049
Abstract
Six-phase PMSMs are widely used in high-power applications due to their high torque density and reliability. This paper focuses on controlling a specific type of asymmetrical six-phase PMSM, where each stator phase consists of two co-directional windings. The motor's 12 windings are configured as four three-phase sets with star connections. Each three-phase set is powered by a six-switch three-phase inverter, and each inverter is independently controlled by a local microcontroller, resulting in a modular power and control structure for each set. Due to the absence of data exchange between local microcontrollers and the non-sinusoidal back-EMF of the motor phases, dynamic modeling in a two-axis reference frame is not feasible. Therefore, the motor is modeled and controlled in a stationary six-axis reference frame. The drive's behavior under various open-circuit fault conditions in one or more windings is analyzed, and a fault-tolerant control algorithm is proposed for each fault scenario to mitigate torque ripple. Theoretical analyses are validated through software simulations in Simulink.
Maleki, D. and Halvaei Niasar, A. (2026). Fault-Tolerant Control and Torque Ripple Reduction in Modular Drive of a Non-Sinusoidal Six-Phase Double Windings Permanent Magnet Synchronous Motor with Four-star connections. Tabriz Journal of Electrical Engineering, (), -. doi: 10.22034/tjee.2026.68243.5049
MLA
Maleki, D. , and Halvaei Niasar, A. . "Fault-Tolerant Control and Torque Ripple Reduction in Modular Drive of a Non-Sinusoidal Six-Phase Double Windings Permanent Magnet Synchronous Motor with Four-star connections", Tabriz Journal of Electrical Engineering, , , 2026, -. doi: 10.22034/tjee.2026.68243.5049
HARVARD
Maleki, D., Halvaei Niasar, A. (2026). 'Fault-Tolerant Control and Torque Ripple Reduction in Modular Drive of a Non-Sinusoidal Six-Phase Double Windings Permanent Magnet Synchronous Motor with Four-star connections', Tabriz Journal of Electrical Engineering, (), pp. -. doi: 10.22034/tjee.2026.68243.5049
CHICAGO
D. Maleki and A. Halvaei Niasar, "Fault-Tolerant Control and Torque Ripple Reduction in Modular Drive of a Non-Sinusoidal Six-Phase Double Windings Permanent Magnet Synchronous Motor with Four-star connections," Tabriz Journal of Electrical Engineering, (2026): -, doi: 10.22034/tjee.2026.68243.5049
VANCOUVER
Maleki, D., Halvaei Niasar, A. Fault-Tolerant Control and Torque Ripple Reduction in Modular Drive of a Non-Sinusoidal Six-Phase Double Windings Permanent Magnet Synchronous Motor with Four-star connections. Tabriz Journal of Electrical Engineering, 2026; (): -. doi: 10.22034/tjee.2026.68243.5049
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