Conventional high-speed flux-switching machines have either a high fundamental frequency or more even harmonics. This paper proposes novel six-slot four-pole axial permanent magnet machine for applications. The machine, consisting of two radially distributed stators and one rotor, can effectively eliminate harmonics in the flux linkage. First, structural parameters that affect performance motor...

Abstract In the field of ultra-high-speed motors, windage loss rises rapidly with increase rotational speed, and even becomes main part motor loss. However, most researches are based on empirical formulas, which has a narrow scope application. These formulas could not guarantee accuracy when calculating large Taylor number flow in high-speed air gap, especially under axial ventilation condition...

In this paper presented initial design of Low Speed Axial Flux Permanent Magnet (AFPM) Machine with Non-Slotted TORUS topology type by use of certain algorithm (Appendix). Validation of design algorithm studied by means of selected data of an initial prototype machine. Analytically design calculation carried out by means of design algorithm and obtained results compared with results of Finite E...

The sensorless control of an axial flux permanent magnet motor drive is proposed and tested. The motor is not purposely designed for sensorless control and shows a very small inherent saliency. This significantly affects the saliency-based position estimation in the low speed region. Other nonidealities, such as the non-sinusoidal back-EMF waveforms and possible misalignment between stator and ...

purpose: to evaluate the effect of childhood corneal opacity on the anteroposterior length of the globe in adulthood. methods: twenty-three patients with significant unilateral corneal opacity which had developed before the age of 6 years and the normal fellow eyes (controls) were evaluated. a comprehensive ocular examination including measurement of anterioposterior length and anterior chamber...

While continuous powder mixing has been an area of active research in recent years, effects of operating conditions on the mixing performance has not been well understood yet. Based on our previously developed periodic section modeling (Gao et al., 2012), this paper examines the effects of operating conditions on two significant parameters of the continuous blending processes: axial velocity an...