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Optimization of T-shaped Suspension Magnetic Ring for Vertical Axis Wind Turbine

机译:垂直轴风力发电机T形悬架磁环的优化

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摘要

Aiming at realizing breeze startup, light wind power generation, a novel T-shaped group of passive magnetic bearing (PMB) with three rings high suspension characteristics was proposed to increase the utilization of wind energy and improve the suspension characteristics of passive bearings. The inner magnetic ring of the T-shaped magnetic ring group adopts an oblique 45 degrees polarization method, which can simultaneously balance radial force and axial force with high suspension characteristics. The static characteristics of the T-shaped magnetic ring group are compared with the traditional double rings which dynamic disturbance characteristics were analyzed in three degrees of freedom (DOF) and the parameters are optimized to achieve the optimal suspension characteristics through methods of Taguchi, response surface with mathematical model. The study shows that the capacity of T-shaped magnetic ring group is 2.5 times which can balance axial force and radial force simultaneously with 40% increase in volume than the double ring. The capacity of T-shaped magnetic ring group is increased by 33.6% and the stiffness is increased by 33.7% after optimized, which meets the requirements of suspension characteristics. When the bearing is disturbed in 3 DOF operation, the stable running state of the bearing can still be maintained due to its self-stabilizing system. It provides a reference for the suspension characteristics of the vertical axis wind turbine suspension system.
机译:为了实现微风启动,轻风发电,提出了一种新型的三环高悬架特性的T型被动磁轴承(PMB)组,以提高风能的利用率,改善被动轴承的悬架特性。 T形磁环组的内磁环采用倾斜45度极化方法,可以同时平衡径向力和轴向力,并具有较高的悬挂特性。将T形磁环组的静态特性与传统双环进行了比较,传统双环在三个自由度(DOF)下分析了动态扰动特性,并通过田口(Taguchi),响应面方法对参数进行了优化,以获得最佳的悬挂特性与数学模型。研究表明,T形磁环组的容量是2.5倍,可以同时平衡轴向力和径向力,体积比双环大40%。优化后,T形磁环组的容量增加了33.6%,刚度增加了33.7%,满足了悬挂特性的要求。当轴承在3自由度运行中受到干扰时,由于其自​​稳定系统,仍可以保持轴承的稳定运行状态。它为垂直轴风力发电机悬挂系统的悬挂特性提供了参考。

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  • 作者单位

    Henan Polytech Univ, Sch Elect Engn & Automat, Dept Elect Engn, Jiaozuo 454000, Peoples R China;

    Henan Polytech Univ, Sch Elect Engn & Automat, Dept Elect Engn, Jiaozuo 454000, Peoples R China;

    Inner Mongolia Agr Univ, Sch Energy & Transportat Engn, Dept Elect Engn, Hohehot Municipality 010018, Peoples R China;

    Henan Polytech Univ, Sch Elect Engn & Automat, Dept Elect Engn, Jiaozuo 454000, Peoples R China;

    Henan Polytech Univ, Sch Elect Engn & Automat, Dept Elect Engn, Jiaozuo 454000, Peoples R China;

    Henan Polytech Univ, Sch Elect Engn & Automat, Dept Elect Engn, Jiaozuo 454000, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    3 DOF; magnetic bearing; stability; T-shaped magnetic ring group;

    机译:3自由度;电磁轴承;稳定性;T形磁环组;

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