An Iterative Estimation Algorithm of Prepositioning Focusing on the Detent Force in the Permanent Magnet Linear Synchronous Motor System

2020 ◽  
Vol 67 (10) ◽  
pp. 8252-8261
Author(s):  
Xuzhen Huang ◽  
Jin Liang ◽  
Zhenyu Qian ◽  
Jing Li
Keyword(s):  
Permanent Magnet ◽  
Motor System ◽  
Estimation Algorithm ◽  
Synchronous Motor ◽  
Iterative Estimation ◽  
Detent Force ◽  
Linear Synchronous Motor

Research on the End Effect Detent Force Reduction of Permanent Magnet Linear Synchronous Motor with Auxiliary Poles One-Piece Structure

2013 ◽  
Vol 416-417 ◽  
pp. 27-32
Author(s):  
He Zhang ◽  
Bao Quan Kou ◽  
Shou Lun Guo ◽  
Hai Lin Zhang ◽  
Yin Xi Jin ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Synchronous Motor ◽  
Linear Motor ◽  
End Effect ◽  
Detent Force ◽  
Linear Synchronous Motor ◽  
Force Reduction ◽  
The One

In order to minimize the detent force of permanent magnet linear synchronous motor (PMLSM) caused by end effect, a novel auxiliary poles one-piece structure is proposed. Two auxiliary poles are extended directly from two ends of the armature core. And magnetic isolation bridges are set between auxiliary pole and armature core. Compared with the conventional discrete auxiliary poles, the one-piece structure will reduce the manufacture difficulty of PMLSM with auxiliary poles and improve the reliability of linear motor.

scholarly journals Detent Force Reduction in Permanent Magnet Linear Synchronous Motor Base on Magnetic Field Similarity Method

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 57341-57348 ◽  
Author(s):  
Chunyuan Liu ◽  
Huimin Gao ◽  
Yuansheng Xiong ◽  
Shigui Zhou ◽  
Wenzhen Fu
Keyword(s):  
Magnetic Field ◽  
Permanent Magnet ◽  
Synchronous Motor ◽  
Detent Force ◽  
Linear Synchronous Motor ◽  
Force Reduction ◽  
Similarity Method ◽  
Field Similarity

Detent Force Modeling and Analysis for Vertical Permanent-Magnet Linear Synchronous Motor Using Equivalent Magnetic Network Method

2011 ◽  
Vol 143-144 ◽  
pp. 148-153 ◽  
Author(s):  
Xiao Zhuo Xu ◽  
Xu Dong Wang ◽  
Hai Chao Feng ◽  
Ji Kai Si
Keyword(s):  
Permanent Magnet ◽  
Equivalent Circuit Model ◽  
Synchronous Motor ◽  
Iron Core ◽  
Modeling And Analysis ◽  
Force Modeling ◽  
Detent Force ◽  
Linear Synchronous Motor ◽  
Calculation Results ◽  
Magnetic Network

This paper investigates the detent force modeling of a slotted iron core type vertical permanent magnet linear synchronous motor (PMLSM) for ropeless elevator applications. Variable network non-linear magnetic equivalent circuit model is established to predict the detent force of PMLSM. The topology structure of equivalent magnetic circuit is developed and the permeances are derived and calculated. The end effect of two end teeth is essential for analysis of detent force and it is focused in the modeling. Magnetic saturation of primary iron-core also be taken into account. In final some 3-D finite-element numerical calculation results are used to validate the feasibility of the proposed method.

Control-Based Reduction of Detent Force for Permanent Magnet Linear Synchronous Motor

2009 ◽  
Vol 45 (6) ◽  
pp. 2827-2830 ◽  
Author(s):  
Yu-Wu Zhu ◽  
Sang-Min Jin ◽  
Koon-Seok Chung ◽  
Yun-Hyun Cho
Keyword(s):  
Permanent Magnet ◽  
Synchronous Motor ◽  
Detent Force ◽  
Linear Synchronous Motor

Detent Force Analysis of Permanent Magnet Linear Synchronous Motor for Bearing Grinding Machine Application

2013 ◽  
Vol 416-417 ◽  
pp. 390-394
Author(s):  
Ding Kuan Ye ◽  
Ling Yun Yan ◽  
Ying Quan Liu ◽  
Yun Yue Ye
Keyword(s):  
Permanent Magnet ◽  
Synchronous Motor ◽  
Element Analysis ◽  
Fea Model ◽  
Detent Force ◽  
Linear Synchronous Motor ◽  
Negative Effect ◽  
Main Components ◽  
Grinding Machine ◽  
D Model

The detent force of permanent magnet linear synchronous motor (PMLSM) leads to the thrust ripple, vibration and noise inbearing grinding machines, In order to overcome the negative effect, detent force needs to be decreased. Through theanalytical andfinite element methods, two main components of detent force are investigated in this paper. Firstly, finite element analysis (FEA) and fast Fourier transform (FFT) are employed to analyze the end force. Then athree dimensional (3-D) FEA model of a short secondary PMLSM with skewed poles is erected and the cogging force is studied.Compared with the two dimensional (2-D) model of PMLSM without skewed poles, the detent force is remarkably reduced.

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