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The linear permanent magnet (PM) vernier machine (LPMVM) can reach a higher thrust density at low speed compared to the regular linear PM machines due to the utilization of the magnetic gear effect, which makes it a good solution for low-speed direct-drive applications. In order to further improve the machine thrust density, a novel LPMVM with consequent-pole and Halbach PM array is proposed and optimized...
This paper introduces a novel linear vernier permanent magnet machine (H-LVPMM) with high force density and low force ripple. The permanent magnets (PMs) on secondary uses Halbach array, which can provide a larger flux density in the air gap than that of the conventional surface-mounted PMs configurations, and the primary is composed of three modules, which are separated by two flux barriers. Moreover,...
Due to the high torque density and sharing similar operating principles with vernier machines, the magnetic-geared permanent magnet machines have been gaining more attention recently. This paper focuses on power transferring feature of a magnetic geared machine among the stator, modulation layer and rotor by analytical methods. Analytical equations of the back electromotive force, torque and power...
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