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  • Development of a 20-Pole-24...
    Chung, Shi-Uk; Moon, Seok-Hwan; Kim, Dong-Jun; Kim, Jong-Moo

    IEEE transactions on industrial electronics (1982), 2016-Jan., 2016-1-00, 20160101, Letnik: 63, Številka: 1
    Journal Article

    In-wheel motors bring a fundamental change in electric vehicle technology by removing conventional mechanical components and freeing up space inside the vehicle body. This approach ultimately helps to realize all-wheel independent control for improved vehicle dynamics and increased vehicle design freedom. However, when space allowed for an in-wheel motor is taken into consideration, high torque density, high efficiency, and wide-speed-range capability are typically required. This paper specifically investigates a 20-pole-24-slot surface permanent magnet synchronous motor with consequent pole rotor for in-wheel direct drive since this topology is well suited for high-pole motors and thus high-torque direct-drive applications. Extensive finite-element analysis is carried out to characterize the proposed motor, and the practical feasibility of the proposed motor is discussed. Finally, the validity of the analysis was experimentally verified.