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Structural optimization and dynamic characteristics of the new type 3-degrees of freedom axial and radial hybrid magnetic bearing
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science ( IF 1.8 ) Pub Date : 2021-10-30 , DOI: 10.1177/09544062211052826
Xiao Ling 1 , He Xiwu 1 , Cheng Wenjie 1 , Li Ming 1
Affiliation  

A new type of three degrees of freedom axial-radial hybrid magnetic bearing (3-DOF ARHMB) with compact structure, shorter axial length and smaller volume is proposed for the flywheel energy storage system. The axial direction adopts the permanent magnet biased thrust bearing (PMB) made of soft magnetic composite materials (SMCs). In the radial direction, the laminated structure is used to reduce the eddy current, and the Halbach array is introduced to strengthen the magnetic density of the radial air gap. Firstly, the dynamic magnetic flux distribution of the 3-DOF ARHMB is analyzed by the finite element method (FEM). Based on the equivalent magnetic circuit method, the equivalent reluctance model with comprehensive consideration of eddy current effect and magnetic leakage effect is established, and then the frequency responses are analyzed. Secondly, a constraint model coupled with structural parameters, equivalent reluctance and magnetic leakage coefficient is established, and an adaptive particle swarm optimization algorithm (APSO) is used to optimize the bearing parameters. Finally, based on the equivalent reluctance model, the axial and radial force-current factor and force-displacement factor are derived, and the dynamic characteristics of bearings with different structures and materials are compared and analyzed. The results show that the new 3-DOF ARHMB made of SMCs can provide much larger and more stable magnetic force and larger bandwidth than that made of carbon steel materials, and has better dynamic characteristics under higher-frequency conditions, which can meet the industrial requirements of flywheel energy storage system.



中文翻译:

新型三自由度轴向径向混合磁轴承的结构优化及动态特性

针对飞轮储能系统提出了一种结构紧凑、轴向长度更短、体积更小的新型三自由度轴向-径向混合磁轴承(3-DOF ARHMB)。轴向采用软磁复合材料(SMCs)制成的永磁偏置推力轴承(PMB)。在径向,采用叠层结构降低涡流,并引入Halbach阵列加强径向气隙的磁密度。首先,通过有限元法(FEM)分析了3-DOF ARHMB的动态磁通分布。基于等效磁路法,建立综合考虑涡流效应和漏磁效应的等效磁阻模型,并对频率响应进行分析。其次,建立与结构参数、等效磁阻和漏磁系数耦合的约束模型,采用自适应粒子群优化算法(APSO)对轴承参数进行优化。最后,基于等效磁阻模型,推导出轴向和径向力-电流系数和力-位移系数,对比分析不同结构和材料轴承的动态特性。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。建立与结构参数、等效磁阻和漏磁系数耦合的约束模型,并采用自适应粒子群优化算法(APSO)对轴承参数进行优化。最后,基于等效磁阻模型,推导出轴向和径向力-电流系数和力-位移系数,对比分析不同结构和材料轴承的动态特性。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。建立了结合结构参数、等效磁阻和漏磁系数的约束模型,采用自适应粒子群优化算法(APSO)对轴承参数进行优化。最后,基于等效磁阻模型,推导出轴向和径向力-电流系数和力-位移系数,对比分析不同结构和材料轴承的动态特性。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。建立等效磁阻和漏磁系数,采用自适应粒子群优化算法(APSO)对轴承参数进行优化。最后,基于等效磁阻模型,推导出轴向和径向力-电流系数和力-位移系数,对比分析不同结构和材料轴承的动态特性。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。建立等效磁阻和漏磁系数,采用自适应粒子群优化算法(APSO)对轴承参数进行优化。最后,基于等效磁阻模型,推导出轴向和径向力-电流系数和力-位移系数,对比分析不同结构和材料轴承的动态特性。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。采用自适应粒子群优化算法(APSO)优化轴承参数。最后,基于等效磁阻模型,推导出轴向和径向力-电流系数和力-位移系数,对比分析不同结构和材料轴承的动态特性。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。采用自适应粒子群优化算法(APSO)优化轴承参数。最后,基于等效磁阻模型,推导出轴向和径向力-电流系数和力-位移系数,对比分析不同结构和材料轴承的动态特性。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。并对不同结构和材料的轴承的动态特性进行了比较和分析。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。并对不同结构和材料的轴承的动态特性进行了比较和分析。结果表明,SMCs制成的新型3-DOF ARHMB比碳钢材料制成的磁力更大更稳定,带宽更大,在高频条件下具有更好的动态特性,可以满足工业要求飞轮储能系统。

更新日期:2021-10-30
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