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In this paper, a novel doubly magnetic geared permanent magnet (DMG-PM) machine is proposed. Through numerical finite element analysis, it is found that the torque transmission capability of the DMG-PM machine is ∼24% higher than its regular counterparts, while the PM usage remains the same. Moreover, the back-EMF is enlarged significantly by ∼37%. In addition, the power factor of the proposed machine...
Hybrid electrical vehicles (HEVs) are becoming more and more popular nowadays in automobile market due to virtues such as energy saving, environmental friendly and low noise. A simple mechanical structure called "planetary gears" are widely used in HEVs to allow the internal combustion engine (ICE) constantly working at its high efficiency region and save energy by decoupling the speed of...
It is demonstrated that a vernier machine and a magnetic gear work under a same principle, and the vernier machine teeth perform the flux modulation function, same as the ferromagnetic pieces do in a magnetic gear. A vernier machine is equal to a system consisting of a magnetic gear and a normal machine. Moreover, this paper presents how to convert a magnetic gear machine system to a vernier machine,...
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