Research on Sensorless Algorithm of Two-Phase Tubular Permanent Magnet Synchronous Linear Motor

被引：0
|
作者：
Zhang C. [1 ,2 ]
Zhang H. [1 ,2 ]
Ye P. [1 ,2 ]
Zhang L. [1 ,2 ]
机构：
[1] Department of Mechanical Engineering, Tsinghua University, Beijing
[2] Beijing Key Laboratory of Precision /Ultra-Precision Manufacturing Equipments and Control, Tsinghua University, Beijing
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 23期
关键词：
High-frequency injection; Inductance; Kalman filter; Linear motor; Sensorless;
D O I：
10.19595/j.cnki.1000-6753.tces.181833
中图分类号：
学科分类号：
摘要：
Due to the existence of longitudinal end effect and magnetomotive force harmonics, the inductance of two-phase tubular permanent magnet synchronous linear motor (TPMSLM) isn't ideal. So the traditional sensorless algorithm based on the high-frequency voltage injection doesn't work. To solve the problem, the inductance of two-phase TPMSLM was studied by the finite element method in the condition that the mover and stator windings were fully coupled. Then the high-frequency voltage model of two-phase TPMSLM in the stationary reference frame was derived from the actual inductance. The estimated position was extracted by the extended Kalman filter (EKF). As a result, the sensorless control using the proposed method provides an enhanced dynamics. At last, the proposed algorithm was verified by experiment. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：4901 / 4908
页数：7
相关论文
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