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磁悬浮飞轮

磁悬浮飞轮的相关文献在2002年到2022年内共计319篇,主要集中在机械、仪表工业、航天(宇宙航行)、电工技术 等领域,其中期刊论文67篇、会议论文10篇、专利文献47205篇;相关期刊34种,包括长安大学学报(自然科学版)、光学精密工程、机电工程技术等; 相关会议10种,包括第二届高分辨率对地观测学术年会、全国第五届磁悬浮轴承学术会议、2012年中国通信能源会议等;磁悬浮飞轮的相关文献由525位作者贡献,包括房建成、刘刚、刘强等。

磁悬浮飞轮—发文量

期刊论文>

论文:67 占比:0.14%

会议论文>

论文:10 占比:0.02%

专利文献>

论文:47205 占比:99.84%

总计:47282篇

磁悬浮飞轮—发文趋势图

磁悬浮飞轮

-研究学者

  • 房建成
  • 刘刚
  • 刘强
  • 刘虎
  • 张维煜
  • 朱志莹
  • 樊亚洪
  • 朱熀秋
  • 王志强
  • 韩邦成
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 俞思源; 胡雄心; 胡勇军
    • 摘要: 首先以径向磁悬浮Jeffcott转子动力学模型为指导,结合有限元分析结论中Jeffoctt转子自身结构特性及其磁悬浮轴承径向支撑结构及支撑特性对飞轮弯临界转速及模态的影响,根据微网对磁悬浮储能飞轮电池的要求,以3.75 kW?h作为单个飞轮电池的储能量为限制条件,优化了飞轮的体积、综合能量密度和质量,设计了一种新型磁悬浮飞轮。其弯曲临界转速高于其极限转速,工作时保持在刚性模态。此设计使得整个飞轮电池具有紧凑的驱动系统和支撑系统,从而实现更小的系统重量和体积以及更小的系统功耗。该设计方案在限定的范围内极大程度缩短了飞轮的轴向长度,使得其弯曲临界转速和运行安全性及稳定性得以大幅度提升。在SAMCEF ROTOR有限元软件中建立转子结构模型,通过仿真分析其弯曲临界转速和振动模态以验证结构设计的合理性。为后续此种飞轮转子的设计提供了一定的参考和借鉴,同时也为磁悬浮飞轮支撑系统的设计提供了一种新思路。
    • 刘鸣; 王攀; 毕伟; 江玮; 张霁阳
    • 摘要: 针对磁悬浮飞轮储能系统的位移检测信号,易受工频干扰、影响控制精度的问题,提出一种变步长LMS算法进行滤波处理和扰动消除.首先探讨步长所包含参数与算法收敛性、稳定性的关系和取值范围,并在不同标准差的噪声环境下,与传统定步长LMS算法和基于正弦补偿改进的LMS算法进行仿真对比,研究结果表明变步长LMS算法收敛速度和稳定性更好.并在模拟飞轮平台上进行了应用,对其他频率成分的信号影响更小,可达到实时消除工频干扰的效果.
    • 刘虎; 杨振鹏; 武登云
    • 摘要: 针对测速传感器故障情况下磁悬浮飞轮不平衡振动抑制所需的高精度的转速信息的提取,提出了一种通过预先提取转子位移信号和转速信号构建BP神经网络模型,从而通过位移信号实时估计转速的方法;通过MATLAB/Simulink构建了磁悬浮飞轮系统模型,以仿真得到的位移和转速数据训练出一个神经网络模块,以此实时估计转速,得到恒速和变速两种情形下的转速估计结果,并与测速传感器获得的转速进行比较.仿真和实验结果证明,该转速估计方法在恒速和变速时均估计效果良好,实验估计误差不超过20 r/min.
    • 高辉; 曹佳男
    • 摘要: 为增加磁悬浮飞轮旋转速度,提高储能密度,需研究其本体结构及电磁作用机理.通过分析一种五自由度主动磁悬浮飞轮结构,建立对称两自由度电磁力公式,并基于泰勒级数展开原理分析电磁力线性化可能性.最后,通过仿真分析电磁力公式及实际磁悬浮飞轮位移与控制电流对应关系,验证线性化的合理性,为后续磁悬浮飞轮储能关键技术研究提供理论依据.
    • 蒲芃成; 张剀; 于金鹏; 赵雷
    • 摘要: A kind of field dynamic balancing method under force free control is proposed aiming at the unbalance of high-speed magnetic suspended flywheel system.It turns out that the low-speed field balancing in the air environment can replace the high-speed field balancing in the vacuum environment with highefficiency and high-accuracy.By analyzing the unbalance model of the magnetic suspended rotor system and comparing the correction-masses under different unbalance control mode,it is found that under the free control mode,the synchronous component of control current is zero and the electromagnetic force is a linear function of the rotor displacement within linearization range.Therefore,the correction-masses can be calculated from the synchronous displacement response of the rotor in force free mode.The force free controller of magnetic bearing is designed to make the rotor spinning around its principal axis of inertial,and synchronous displacement response of the rotor is extracted to compute the correction-masses.As there exists some deviation between the theoretical and actual value of the system parameters,a trial weight is completed to correct the convention coefficient matrix.The experimental results show that the conversion coefficient matrix can be re-calibrated after a start-up test.And after the second balancing,the high-accuracy field balancing can be achieved.The orbits of rotor shaft centerline reduce significantly and the synchronous displacement response of the rotor decrease by 77.29% and 94.14% respectively.The rotor operating condition with 500Hz rotation speed in vacuum environment is in close proximity to low-speed condition,and it further validates the proposed method.%针对高速磁悬浮飞轮转子的不平衡问题,提出了一种在力自由不平衡控制下的在线动平衡方法,用空气环境下低转速的在线动平衡替代真空环境下的高转速在线动平衡,以实现兼顾高效率和高精度的在线动平衡.通过分析磁悬浮转子系统的不平衡模型和比较各不平衡控制模式下校正质量的求解方法,得出在力自由控制模式下,磁轴承的同频控制电流为零,电磁力在线性化范围内仅是转子位移的线性函数.因此根据转子的同频位移响应可解算动平衡校正质量.通过所设计的磁轴承力自由不平衡控制器使转子绕其惯性主轴旋转,获得了转子同频位移响应.由于系统参数的理论值与实际值存在一定误差,通过一次试重对转换系数矩阵进行了校正.实验结果表明,通过一次试重校正转换系数矩阵,再经过两次试转后即可实现高精度动平衡.另外,转子轴心轨迹显著减小、转子两端同频位移响应分别下降了77.29%和94.14%;在真空环境下,试验转子升速至500 Hz时,转子的运行状况与低速状态一致,进一步验证了本文提出方法的有效性.
    • 刘强; 赵勇; 曹建树; 任元
    • 摘要: To remedy the limitations of the magnetic resistance type magnetic bearing with negative deflection torque and Lorentz magnetic bearing with poor gas flux density uniformity,a novel vernier gimballing magnetically suspended flywheel is presented.And its composition,operating principle and scheme of the Lorentz magnetic bearing are introduced.The equivalent magnetic circuit method is applied to the magnetic analysis of the Lorentz magnetic bearing,and its mechanics models of the radial deflection torque and translational levitation force is got.By comparatively analyzing the magnetic density with the electromagnetic numerical analysis method,the sphere trapezoid permanent magnet is adopted.Upon this,by combining the technical index of the vernier gimballing magnetically suspended flywheel with an angular moment of 15 Nms,the Lorentz magnetic bearing is designed in detail.According to design results,the vernier gimballing magnetically suspended flywheel is manufactured,and the air gap magnetic density is dynamically measured by the linear magnetic density hall sensors.The results have a good agreement with the design values,which has important significance in the design of flywheel system.%针对微框架磁悬浮飞轮用磁阻力磁轴承存在偏转负力矩和洛伦兹力磁轴承气隙磁密均匀性较差的缺点,提出了一种基于球形转子的微框架磁悬浮飞轮,介绍了其结构、工作原理和洛伦兹力磁轴承方案.采用等效磁路法建立了洛伦兹力磁轴承磁路数学模型,得到了其径向偏转力矩和轴向平动悬浮力.利用电磁场数值分析法,对三种洛伦兹力磁轴承方案的磁密和磁通进行比较分析,得到了最优的球面梯形磁钢方案.在此基础上,结合15Nms微框架磁悬浮飞轮技术指标,对磁轴承进行了详细实例设计.根据设计结果研制了一台微框架磁悬浮飞轮,并利用线性磁密霍尔对磁轴承气隙磁密进行动态测试.测试结果与优化结果一致,对微框架磁悬浮飞轮系统整体设计具有重要意义.
    • 张染; 刘虎; 樊亚洪
    • 摘要: Under the condition of high-precision rotor speed signal extraction problem in magnetic suspension flywheel active vibration suppression without a speed sensor,firstly,an improved Hilbert transform rotor speed estimation method is put forward,and through this method,the rotor speed of high precision can be got with only one kind of radial rotor displacement signals;then this rotor speed signal is introduced into the simulation model of the magnetic suspension flywheel unbalanced vibration suppression,and this speed estimation method is analyzed in this simulation system;finally the rotor speed estimation method based on the improved Hilbert transform has been verified on the magnetic suspension flywheel prototype.Simulation and experimental results show that this method has good adaptability in both cases of variable and constant rotor speed,and after introducing speed estimate signal,the unbalanced vibration has attenuated by 80% or more within the working rotor speed scope of the magnetic suspension flywheel.%针对无测速传感器条件下磁悬浮飞轮主动振动抑制所需的转速信号的高精度提取问题,首先提出了一种改进Hilbert变换转速估计方法,实现了仅通过一路转子径向位移信号获得高精度的转子转速信号;将所估计的转速信号引入磁悬浮飞轮不平衡振动控制仿真模型中,对所提出的转速估计方法进行了仿真分析;在磁悬浮飞轮样机上进行了所提出的改进Hilbert变换转子转速估计方法的验证,并对引入估计转速信号前后磁悬浮飞轮的振动信号进行了对比分析.仿真和实验结果表明,此方法在磁悬浮飞轮处于变速和恒速两种情况下都具有良好的适应性,在磁悬浮飞轮的工作转速范围内引入转速估计信号后同频不平衡振动衰减达到80%以上.
    • 刘鹏远; 李建春; 王晓瑜; 肖跃华; 曹扬
    • 摘要: 针对五自由度永磁偏置磁轴承飞轮,分析其结构参数及控制原理,设计了磁飞轮通用型电控系统。介绍了以FPGA为核心的控制系统构成,并阐述了控制器的设计策略,针对飞轮数据处理设计了一种通用型矩阵运算器。最终完成静态悬浮及低速旋转实验。%According to the five degree of freedom of permanent manget biased magnetic bearing flywheel, we ana-lyzed the structure and control principle of it. A general electric control system of magnetic flywheel was designed. In this paper a composition of control system with FPGA as the core was introduced. And the design strategies of the con-troller was expounded. In the view of the data processing for flywheel, a general matrix computation was designed. Final-ly the static levitation and low-speed rotation experiment were completed.
    • 刘强; 武登云; 房建成; 樊亚洪
    • 摘要: 针对磁悬浮飞轮抱式锁紧机构用一体式碳纤维弹片,提出了一种新型优化方法.通过将碳纤维弹片等效为悬臂梁模型,对其进行静力学和动力学分析,得到其最大过盈摩擦力、锁紧力、解锁力、最大弯曲应力和一阶共振频率.基于有限元法,对弹片进行灵敏度分析,得到弹片上端和下端两组互不相关的结构参数,并分别对两组结构参数进行优化设计.优化结果表明,当弹片个数为12时,质量达到最小60.5g,比最初170 g减少了64%.根据优化结果研制了一套锁紧机构,利用三轴正弦扫频振动和随机振动试验,检验锁紧机构对磁悬浮飞轮系统的保护效果.结果显示,振动试验中定、转子间最大相对振动位移为50μm,远小于磁悬浮飞轮保护间隙200 μm,表明锁紧机构能够对飞轮系统实施有效保护.
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