| 基于降阶EKF的永磁同步电机转速和磁链观测器 |
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| 引用本文： | 武明珠,李宏,王磊,谢佳鹏.基于降阶EKF的永磁同步电机转速和磁链观测器[J].测控技术,2012,31(8):59-62. |
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| 作者姓名： | 武明珠 李宏 王磊 谢佳鹏 |
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| 作者单位： | 西北工业大学航海学院,陕西西安,710072 |
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| 摘 要： | 在永磁同步电机(PMSM)无速度传感器直接转矩控制中,针对扩展卡尔曼滤波(EKF)算法复杂、实时性较差等问题,提出了一种基于降阶扩展卡尔曼滤波器(REKF)的预估永磁同步电机磁链和转速的新算法。仿真结果证明该算法不仅延续了传统扩展卡尔曼滤波算法的优势,且算法更加简单,更易于数字化实现,鲁棒性好。
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| 关 键 词： | 永磁同步电机 无速度传感器 降阶卡尔曼滤波 直接转矩控制 |
Speed and Flux Linkage Observer for PMSM Based on Reduced-Order EKF |
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| WU Ming-zhu
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LI Hong
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WANG Lei
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XIE Jia-peng.Speed and Flux Linkage Observer for PMSM Based on Reduced-Order EKF[J].Measurement & Control Technology,2012,31(8):59-62. |
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| Authors: | WU Ming-zhu LI Hong WANG Lei XIE Jia-peng |
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| Affiliation: | (School of Marine Engineering,Northwestern Polytechnical University,Xi’an 710072,China) |
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| Abstract: | At the sensorless PMSM-DTC system,considering the complexity and non-real-time problems in extended Kalman filter(EKF),a new algorithm for predicting the stator flux linkage and speeds of rotors based on reduced-order extended Kalman filter(REKF) is proposed.The simulation results demonstrate that this algorithm not only inherit the superiority of EKF,but also is briefer and easy for the digital implementation,and has a good robustness. |
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| Keywords: | PMSM sensorless reduced-order Kalman DTC(direct torque control) |
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