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International Conference on Electrical Machines and Systems, 2023
A thrust ripple suppression strategy of PMLSM is proposed based on a multi-resonant disturbance observer. To avoid anomalous gain peaks, a tuning method for resonant gain and compensation phase is designed through the loop shaping for disturbance ...
Anpeng Wang, Liyi Li, X. Huang
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A thrust ripple suppression strategy of PMLSM is proposed based on a multi-resonant disturbance observer. To avoid anomalous gain peaks, a tuning method for resonant gain and compensation phase is designed through the loop shaping for disturbance ...
Anpeng Wang, Liyi Li, X. Huang
semanticscholar +1 more source
Magnet Skew Technology Investigation for the Reduction of PMLSM Thrust Ripple
Advanced Materials Research, 2012Thrust characteristics of permanent magnet linear synchronous motor (PMLSM) are analyzed. It shows that frequency spectrums of thrust ripple, which are mainly caused by end-effect, are quite similar for linear motors with different pole/slot combinations. To apply magnet skew technology, a method using piecewise magnet for skewing factor computation is
Jiong Jiong Cai +3 more
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Annual Conference of the IEEE Industrial Electronics Society, 2023
U-shaped ironless permanent magnet linear motors (IL-PMLMs) are widely implemented in precision manufacturing equipment with the advantages of small thrust and high positioning accuracy. However, the structural parameter variations of the motor caused by
Lingchen Li +5 more
semanticscholar +1 more source
U-shaped ironless permanent magnet linear motors (IL-PMLMs) are widely implemented in precision manufacturing equipment with the advantages of small thrust and high positioning accuracy. However, the structural parameter variations of the motor caused by
Lingchen Li +5 more
semanticscholar +1 more source
International Electric Machines and Drives Conference, 2023
Thrust ripples caused by the end-effect and cogging-effect have a serious impact on the control of Permanent Magnet Linear Motor (PMLM). In this paper, thrust ripple of PMLM is analyzed and reduced for servo system.
Dongxu Yang, S. Jia, D. Liang
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Thrust ripples caused by the end-effect and cogging-effect have a serious impact on the control of Permanent Magnet Linear Motor (PMLM). In this paper, thrust ripple of PMLM is analyzed and reduced for servo system.
Dongxu Yang, S. Jia, D. Liang
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Reduction of thrust ripple in Linear DC Motor
1995To design a LDM servo system, it is need to reduce thrust ripple for precise position servo system. The thrust ripples make it difficult to control in position servo system, we introduce some technique to reduce thrust ripple in LDM, and propose a technique to compensate the end effect in LDM by adding two sub magnetic pole.
D.H. Im, H.L. Kim, B.J. Jin
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IEEE transactions on power electronics
The conventional discrete space vector modulation-based model predictive control (DSVM-MPC) strategies in linear induction machines (LIMs) have two problems, one is that the current harmonics and thrust ripple are large as accuracy of the voltage vector (
Yingcong Guo +5 more
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The conventional discrete space vector modulation-based model predictive control (DSVM-MPC) strategies in linear induction machines (LIMs) have two problems, one is that the current harmonics and thrust ripple are large as accuracy of the voltage vector (
Yingcong Guo +5 more
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Thrust Ripple Analysis and Suppression of Minimum Unit Coil Segmented Moving-magnet Linear Motor
International Conference on Electrical Machines and Systems, 2023Each coil of the minimum unit coil segmented moving-magnet linear motor (MUCSMLM) can be controlled independently, which introduces large thrust fluctuations when running.
Jianxin Cui +3 more
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Thrust Ripples Test and Analysis of Permanent Magnet Linear Synchronous Motor
2011 Third International Conference on Measuring Technology and Mechatronics Automation, 2011Thrust ripples are the main factors which affect the application and development of permanent magnet linear synchronous motor (PMLSM). In order to control and compensate the thrust fluctuations of permanent magnet synchronous motor, the mathematical model of thrust fluctuations must be established first.
Liu Ruozhu, Yang Qingdong, Tong Liang
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A Novel Structure for Minimization of Thrust Ripple on Voice Coil Motor Used in Ventilators
2021 13th International Symposium on Linear Drives for Industry Applications (LDIA), 2021This paper investigates a novel structure voice coil motor (VCM), which is used in ventilator. The VCM controls on and off of the valve of ventilator, so steady thrust and fast response are needed. The influences of structure parameters to the performance are investigated by finite element analysis.
Bin Yu, Wu Ren, Yanli Wang, Li Wang
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IEEE transactions on power electronics
Permanent magnet linear synchronous motor (PMLSM) suffers from inherent thrust ripples, which cause vibration and noise and worsen the control performance.
Guoqiang Zhang +6 more
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Permanent magnet linear synchronous motor (PMLSM) suffers from inherent thrust ripples, which cause vibration and noise and worsen the control performance.
Guoqiang Zhang +6 more
semanticscholar +1 more source