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Inset permanent magnet (PM) synchronous motor (PMSM) has been widely used in various occasions due to its high efficiency and high torque density, such as the electric vehicle, wind power generation, ship propulsion, home appliances and other high precision machining and servo control systems [1]–[3].
As a promising candidate applied in direct-drive applications due to high torque characteristics at low speed, vernier permanent-magnet (VPM) machines have been paid increasingly attention in many direct-drive fields, such as electric vehicle propulsion and wind power generation [1–2].
Nowadays, with the increasing concerns on global environment pollution and energy security, electric vehicles (EVs) have been regarded as the potential to offer a solution for transportation [1].
In recent years, it is a trend that electric vehicles (EVs) employ multiphase permanent magnet (PM) motors because of their advantages such as high efficiency, high power density, and high torque to current ratio. Many control strategies have been investigated for PM motor drives [1-3]. However, due to the multivariable and strong coupling nonlinear system, it is difficult to meet the high requirements...
In recent years, coaxial magnetic gears (CMGs) are particularly attractive for applications desiring high torque density, such as electric vehicles and wind generators [1]. They can offer several advantages like low acoustic noise, maintenance free, and inherent overload protection in comparison with conventional mechanical gears. However, because of the modulation effect by the stationary ring, the...
Permanent magnet (PM) machines possess the merits of high torque density and high efficiency which is very suitable for some applications such as electric vehicles (EVs) [1]-[4]. Over the years, the surface PM and interior PM types, have been extensively studied and developed. The 2004 prius interior PM machine with the advantages of high torque density and wide speed range has been built and applied...
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