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PIER PIER B PIER C PIER M PIER Letters
2011-02-08
Electromagnetic Design and Analysis of a Novel Magnetic-Gear-Integrated Wind Power Generator Using Time-Stepping Finite Element Method
By
Linni Jian,

    Dr. Linni Jian

    Shenzhen Institutes of Advanced Technology, CAS

    China

    Homepage

Guoqing Xu,

    Dr. Guoqing Xu

    Shenzhen Institute of Advanced Integration Technology, Chinese Academy of Sciences

    China

    Homepage

Yu Gong,

    Dr. Yu Gong

    Ningbo Tianan Electric Group Co., Ltd.

    China

    Homepage

Jianjian Song,

    Mr. Jianjian Song

    Shenzhen Institute of Advanced Integration Technology, Chinese Academy of Sciences

    China

    Homepage

Jianing Liang,

    Dr. Jianing Liang

    Shenzhen Institute of Advanced Integration Technology, Chinese Academy of Sciences

    China

    Homepage

Ming Chang

    Mr. Ming Chang

    Shenzhen Institute of Advanced Integration Technology, Chinese Academy of Sciences

    China

    Homepage

Progress In Electromagnetics Research, Vol. 113, 351-367, 2011
doi:10.2528/PIER10121603
Abstract
This paper presents a novel permanent-magnet (PM) machine for wind power generation. In order to achieve high power/torque density as well as get rid of the nuisances aroused by the mechanical gearbox, a coaxial magnetic gear (CMG) is engaged. Different from the existing integrated machine in which armature windings are deployed in the inner bore of the CMG as an individual part, stator windings are directly inserted among the slots between the ferromagnetic segments in this proposed machine. Thus, it can offer several merits, such as simpler mechanical structure, better utilization of PM materials and lower manufacturing cost. Moreover, by artfully designing the connection of the armature windings, the electromagnetic coupling between the windings and the outer rotor PMs can be dramatically decreased, and the electromechanical energy conversion can be achieved by the field interaction between the inner rotor PMs and the armature windings. This machine adopts an outer-rotor topology, for compact design, the wind blades are directly mounted on the outer rotor of the machine, while the fairing is equipped on the front end of the stator. The design details and operating principle are elaborated. By using the time-stepping finite element method (TSFEM), the electromagnetic characteristics of the proposed machine are analyzed. The results verify the validity of the proposed machine.
Citation
Linni Jian, Guoqing Xu, Yu Gong, Jianjian Song, Jianing Liang, and Ming Chang, "Electromagnetic Design and Analysis of a Novel Magnetic-Gear-Integrated Wind Power Generator Using Time-Stepping Finite Element Method," Progress In Electromagnetics Research, Vol. 113, 351-367, 2011.
doi:10.2528/PIER10121603
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