基于卡尔曼滤波器的三极磁轴承位置自检测

发布时间：2017-12-26 23:04

本文关键词：基于卡尔曼滤波器的三极磁轴承位置自检测　出处：《控制工程》2016年07期 　论文类型：期刊论文

【摘要】：提出采用卡尔曼滤波器的方法来实现主动磁轴承的位置自检测,该方法利用卡尔曼滤波器来解决转子的偏心问题,并为验证该方法的有效性,针对三极磁轴承,实现其转子径向位移和速度的估算。所设计的卡尔曼滤波器利用经过滤波的线圈电压和控制器的输入作为计算转子位置和速度估算值的输入信号。卡尔曼滤波器的估算值通过检测输入和输出数据进行数字模拟,其中,不可观测的偏心问题可以当作未知状态。结果表明,采用所提出的位置自检测方法可以成功估算磁轴承的偏心位移值,且位移估算值和实际检测值一致。
[Abstract]:This method uses Calman filter to achieve position detection of active magnetic bearing, the method of using Calman filter to solve the problem of rotor eccentricity, and to verify the validity of the method, according to the pole of magnetic bearing, the rotor radial displacement and velocity estimation. The designed Calman filter uses the filtered coil voltage and the input of the controller as the input signal to calculate the rotor position and velocity estimation value. The estimated values of the Calman filter are numerically simulated by the detection of input and output data, in which the unobservable eccentricity can be regarded as an unknown state. The results show that the eccentricity of the magnetic bearings can be estimated successfully by the proposed position self detection method, and the estimated value of the displacement is in accordance with the actual detection value.
【作者单位】：湖南机电职业技术学院电气工程学院;鄂尔多斯应用技术学院;
【基金】：湖南省教育厅科学研究项目(15C0488)
【分类号】：TH133.3;TN713
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