In this paper, the method of harmonic suppression and torque ripple reduction is studied for structure characteristics design requirements a high-speed permanent magnet spindle motor. According to magnetic circuit analysis calculation theory synchronous motor (PMSM), reluctance slots are arranged at two ends rotor yoke change external field distribution in order optimize air gap density wavefor...

In this paper, we present a high-efficiency wireless power transfer system with design and measurements, for three different types of receivers. The transmitter the uses Class E/F3 amplifier second harmonic reduction to reduce distortion, resonator, proposed filter is designed be load-dependent voltage source, which means that it generates output according load impedance. resonator match impeda...

In this paper, a discrete skew methodology is presented to understand the effect of skewing angle on electromagnetic torque in SynRM design. A new approach proposed estimate amplitude each ripple component as function angle. The reduction factor for harmonic derived general form, allowing determination overall waveform. validity method evaluated through examination two SynRMs, resulting up 70%....