University of Isfahan Computational Intelligence in Electrical Engineering 2821-0689 16 3 2025 09 23 Fault-Tolerant Control of a Six-Phase Non-Sinusoidal Permanent Magnet Synchronous Motor with Dual Stator Winding Modular Drive Fault-Tolerant Control of a Six-Phase Non-Sinusoidal Permanent Magnet Synchronous Motor with Dual Stator Winding Modular Drive 19 36 30118 10.22108/isee.2025.143586.1716 FA Dawood Maleki Department of Electrical and Computer Engineering, University of Kashan, Kashan, Iran 0000-0003-4265-5120 Abolfazl Halvaei Niasar Department of Electrical and Computer Engineering, University of Kashan, Kashan, Iran 0000-0003-4265-5120 Journal Article 2024 12 04 This paper investigates fault-tolerant control of a six-phase PMSM with dual stator windings. Each phase of this motor's stator consists of two windings that are coaxial and opposite each other relative to the stator center. To maximize drive reliability, a modular structure is used in the design of the stator and the drive system for each motor phase; such that each stator winding can be supplied by a separate single-phase H-bridge inverter, and the inverters for each phase have an independent control system from the other phases. Due to the harmonic nature of the back-EMF voltage of the phases and in order to reduce the generated torque ripple, an optimal harmonic current injection method is introduced. In this method, Quasi-Proportional-Resonant current controllers are used for proper tracking of the harmonic reference currents. Upon the occurrence of a fault and the loss of one or more phases, torque oscillation arises. To eliminate this, a fault-tolerant control method based on adjusting the amplitude and angle of some healthy phases is employed. The performance of the designed control system under various fault conditions is validated by software simulation. This paper investigates fault-tolerant control of a six-phase PMSM with dual stator windings. Each phase of this motor's stator consists of two windings that are coaxial and opposite each other relative to the stator center. To maximize drive reliability, a modular structure is used in the design of the stator and the drive system for each motor phase; such that each stator winding can be supplied by a separate single-phase H-bridge inverter, and the inverters for each phase have an independent control system from the other phases. Due to the harmonic nature of the back-EMF voltage of the phases and in order to reduce the generated torque ripple, an optimal harmonic current injection method is introduced. In this method, Quasi-Proportional-Resonant current controllers are used for proper tracking of the harmonic reference currents. Upon the occurrence of a fault and the loss of one or more phases, torque oscillation arises. To eliminate this, a fault-tolerant control method based on adjusting the amplitude and angle of some healthy phases is employed. The performance of the designed control system under various fault conditions is validated by software simulation. https://isee.ui.ac.ir/article_30118_693602d3082a6a5fcc696167d689e5db.pdf