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The purpose of this paper is to investigate both the torque ripple reduction technique and influences of mechanical tolerance on the performances of a novel dual-stator 6/4 flux-switching permanent magnet machine. To minimize the torque ripple, step skew designs are studied to determine the optimal step number and step skew span angle. In addition, three common rotor mechanical tolerance deviation...
Flux switching permanent magnet machines provide many advantages. Due to their superior behavior associated with sinusoidal Back-EMF and low torque ripple, topologies featuring 12 stator teeth and 10 rotor poles (12/10) are favored. However, this follows that for a given mechanical rotor speed, the required electric fundamental frequency is ten times to that of a conventional two pole PM machine imposing...
This paper proposes a novel reference voltage controlled pulse width modulation technique to minimize the excitation torque ripple of a single-phase brushless DC motor for high-speed applications. The proposed control technique reduces output current ripple by modifying PWM reference voltage rather than shifting input voltage phase. The comparison results of output torque indicate that the proposed...
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