THE "PERMANENT PHASE"

Aligned two-phase magnets: Permanent magnetism of the future? (invited)

Geometry optimization of five-phase permanent magnet synchronous motors using Bees algorithm

Among all types of electrical motors, permanent magnet synchronous motors (PMSMs) are reliable and efficient motors in industrial applications. Because of their superiority over other kinds of motors, they are replacing conventional electric motors. On the other hand, high-phase PMSMs are good candidates to be used in certain industrial and military projects such as electric vehicles, spacecraf...

Six Phase Permanent Magnet Machine with Fractional Slot Concentrated Winding

Permanent Magnet Machines (PMM) with a phase number (m) higher than three allow redundancy and lower torque ripple compared to their three phase counterparts. In this paper, a six phase permanent magnet machine with surface rotor magnets, designed with fractional slot tooth winding is proposed. A stator design with fractional slot tooth winding allows the design of a compact machine through sho...

Injected Rotor Shape for Five - Phase Surface - Mounted Permanent Magnet

I . Introduction Multi-phase machines offer several key features, such as high reliability, high torque density, and high efficiency . Therefore, they are obtained wide applications from automotive to aerospace [1][2] . One of them is the five-phase PM machine, where the torque density can be improved by injecting third harmonic current . However, in order to maintain high torque density and re...

Permanent Magnet Quadrupoles for CESR Phase-III Upgrade

The CESR Phase-III upgrade plan includes very strong permanent magnet quadrupoles in front of the cryostat for the superconducting quadrupoles and physically as close as possible to the interaction point. Together with the superconducting quadrupoles, they provide tighter vertical focusing at the interaction point. The quadrupoles are built with Neodymium Iron Boron (NdFeB) material and operate...