| 永磁同步电机的改进扩展卡尔曼滤波测速算法 |
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| 引用本文： | 何栋炜,彭侠夫,蒋学程,周结华.永磁同步电机的改进扩展卡尔曼滤波测速算法[J].西安交通大学学报,2011,45(10):59-64. |
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| 作者姓名： | 何栋炜 彭侠夫 蒋学程 周结华 |
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| 作者单位： | 厦门大学自动化系,361005,福建厦门 |
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| 基金项目： | 福建省自然科学基金资助项目(2010J05141) |
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| 摘 要： | 针对使用增量式编码器的永磁同步电机(PMSM)伺服系统中的传统测速算法(M算法结合低通滤波)存在的时延与不准确的问题,提出了一种改进的扩展卡尔曼滤波( EKF)测速算法.该方法在不修改原有电路的前提下,利用EKF算法抑制噪声且不产生时延的特点,针对性地设计了观测模型,并通过矩阵变换与利用定点数字信号处理器累加溢出的周期...
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| 关 键 词： | 永磁同步电机 测速算法 扩展卡尔曼滤波 增量式编码器 |
Improved Extended Kalman Filter Velocity Estimation for Permanent Magnet Synchronous Motor |
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| HE Dongwei,PENG Xiafu,JIANG Xuecheng,ZHOU Jiehua.Improved Extended Kalman Filter Velocity Estimation for Permanent Magnet Synchronous Motor[J].Journal of Xi'an Jiaotong University,2011,45(10):59-64. |
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| Authors: | HE Dongwei PENG Xiafu JIANG Xuecheng ZHOU Jiehua |
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| Institution: | HE Dongwei,PENG Xiafu,JIANG Xuecheng,ZHOU Jiehua (Automation Department,Xiamen University,Xiamen,Fujian 361005,China) |
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| Abstract: | Aiming at the lagging and inaccuracy in the traditional velocity estimation method for permanent magnet synchronous motor(PMSM) with incremental encoder,an improved method based on extended Kalman filter(EKF) was proposed,an EKF observer was designed to obtain the estimated speed accurately without lagging,and the algorithm was simplified with matrix transformation and the overflow periodicity of accumulator in the fixed-point DSP.The experiment results show the relatively accurate velocity estimation witho... |
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| Keywords: | permanent magnet synchronous motor velocity estimation algorithm extended Kalman filter incremental encoder |
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